From 82a45427465a56ae3d0faa33155aec4f59836828 Mon Sep 17 00:00:00 2001
From: "Timothy J. Aveni" <tja@berkeley.edu>
Date: Tue, 22 Sep 2026 13:51:32 -0700
Subject: [PATCH] Build composable Camino packages with explicit type and
 source dependencies

---
 grammar/QuixosLock.g4                         |   2 +
 nix/checked-candidate.nix                     |  69 ++++-
 src/bindings/index.ts                         |  15 +-
 src/capability-language/assembly.ts           |  99 ++++---
 src/capability-language/authoring-context.ts  |   4 +-
 src/capability-language/authoring-inspect.ts  |   2 +-
 src/capability-language/candidate-check.ts    |   3 +-
 src/capability-language/checked-build.ts      |   2 +-
 src/capability-language/execution-scaffold.ts |   2 +-
 src/capability-language/git-resolver.ts       |   2 +-
 src/capability-language/pin-upgrades.ts       |  24 +-
 src/capability-language/resource-cli.ts       |  20 +-
 src/capability-language/structural-edits.ts   |   6 +-
 src/capability-language/structural-plan.ts    |   6 +-
 src/capability-language/tool-cli.ts           |  74 ++++--
 src/capability-language/workspace-cli.ts      |  19 +-
 src/execution-world/client-contracts.ts       |  14 +-
 src/execution-world/receipts.ts               |   8 +-
 src/resource-lock/generated/QuixosLock.interp |   4 +-
 src/resource-lock/generated/QuixosLock.tokens |  58 +++--
 .../generated/QuixosLockLexer.interp          |   5 +-
 .../generated/QuixosLockLexer.tokens          |  58 +++--
 .../generated/QuixosLockLexer.ts              | 241 +++++++++---------
 .../generated/QuixosLockParser.ts             |  89 ++++---
 src/resource-lock/parser.ts                   |   6 +-
 src/resource-lock/types.ts                    |   2 +-
 test/artifact-files.test.ts                   |  19 ++
 test/build-dependencies.test.ts               |  76 ++++++
 test/emit-managed.ts                          |  21 ++
 test/pin-upgrades.test.ts                     | 206 +++++++--------
 30 files changed, 736 insertions(+), 420 deletions(-)
 create mode 100644 test/build-dependencies.test.ts

diff --git a/grammar/QuixosLock.g4 b/grammar/QuixosLock.g4
index e8b41a1..ae2525e 100644
--- a/grammar/QuixosLock.g4
+++ b/grammar/QuixosLock.g4
@@ -20,6 +20,7 @@ importEntry
 resourceKind
   : INTERFACE
   | PACKAGE
+  | BUILD
   ;
 
 sourceBlock
@@ -58,6 +59,7 @@ QUIXOS: 'quixos';
 SOURCE: 'source';
 INTERFACE: 'interface';
 PACKAGE: 'package';
+BUILD: 'build';
 REPOSITORY: 'repository';
 COMMIT: 'commit';
 POLICY: 'policy';
diff --git a/nix/checked-candidate.nix b/nix/checked-candidate.nix
index fcb6fec..7e61b45 100644
--- a/nix/checked-candidate.nix
+++ b/nix/checked-candidate.nix
@@ -34,7 +34,8 @@ let
         '';
         lock = builtins.fromJSON (builtins.readFile lockFile);
         children = map (
-          entry: load (ancestors ++ [ (sourceKey source) ]) (entry.source // { inherit (entry) kind; })
+          entry:
+          load (ancestors ++ [ (sourceKey source) ]) (entry.source // { inherit (entry) kind binding; })
         ) lock.resources;
       in
       source // { inherit directory children lock; };
@@ -50,6 +51,12 @@ let
   );
   runtimePackages = runtime.packages.${system};
   flatten = node: [ node ] ++ pkgs.lib.concatMap flatten node.children;
+  capabilityFlatten =
+    node:
+    if node.kind == "build" then
+      [ ]
+    else
+      [ node ] ++ pkgs.lib.concatMap capabilityFlatten node.children;
   nodes = builtins.attrValues (
     builtins.listToAttrs (
       map (node: {
@@ -94,6 +101,51 @@ let
       }
     '';
   contract = compile root;
+  buildDependencies =
+    node:
+    builtins.listToAttrs (
+      map (dependency: {
+        name = dependency.binding;
+        value = {
+          src = dependency.directory;
+          source = { inherit (dependency) repository commit; };
+          flake = builtins.getFlake "git+${dependency.repository}?rev=${dependency.commit}&ref=refs/tags/quixos-reachability/${dependency.commit}";
+        };
+      }) (builtins.filter (dependency: dependency.kind == "build") node.children)
+    );
+  reactContracts =
+    node:
+    let
+      interfaces = builtins.attrValues (
+        builtins.listToAttrs (
+          map (dependency: {
+            name = sourceKey dependency;
+            value = dependency;
+          }) (builtins.filter (dependency: dependency.kind == "interface") (capabilityFlatten node))
+        )
+      );
+    in
+    pkgs.lib.concatMap (
+      dependency:
+      if !builtins.pathExists (dependency.directory + "/flake.nix") then
+        [ ]
+      else
+        let
+          source = builtins.getFlake "git+${dependency.repository}?rev=${dependency.commit}&ref=refs/tags/quixos-reachability/${dependency.commit}";
+          build = source.quixosInterfaces.${system}.reactTypes or null;
+        in
+        if build == null then
+          [ ]
+        else
+          [
+            (build {
+              interface = "${compile dependency}/candidate.json";
+              generator = protocol;
+              typescript = runtimePackages.camino-replica-core.dependencies;
+              dependencies = buildDependencies dependency;
+            })
+          ]
+    ) interfaces;
   checkPackage =
     node:
     let
@@ -126,11 +178,13 @@ let
             sharedRuntime = runtimePackages.camino-shared-runtime;
             typescript = runtimePackages.camino-replica-core.dependencies;
             packageRevisionId = candidate.revision.revisionId;
+            dependencies = buildDependencies node;
           }
           // pkgs.lib.optionalAttrs (componentEntries != [ ]) {
             react = {
               sdk = runtimePackages.camino-react;
               runtime = runtimePackages.camino-react-runtime;
+              contracts = reactContracts node;
             };
           }
         else
@@ -157,7 +211,18 @@ let
     if contractOnly then
       [ ]
     else
-      map checkPackage (builtins.filter (node: node.kind == "package") nodes);
+      map checkPackage (
+        builtins.filter (node: node.kind == "package") (
+          builtins.attrValues (
+            builtins.listToAttrs (
+              map (node: {
+                name = sourceKey node;
+                value = node;
+              }) (capabilityFlatten root)
+            )
+          )
+        )
+      );
   manifest = pkgs.writeText "qx-candidate-checks.json" (builtins.toJSON checks);
   bindingOptions = pkgs.writeText "qx-typescript-options.json" (
     builtins.toJSON (
diff --git a/src/bindings/index.ts b/src/bindings/index.ts
index 8290516..8afc11a 100644
--- a/src/bindings/index.ts
+++ b/src/bindings/index.ts
@@ -17,24 +17,29 @@ export type BindingSchema = {
   interfaceTemplates?: InterfaceRevision[];
   packages: PackageRevision[];
 };
-export const bindingSchema = (compiled: Pick<CompiledCapabilityResourceRepository, "resources">): BindingSchema => ({
+export const bindingSchema = (
+  compiled: Pick<CompiledCapabilityResourceRepository, "resources"> &
+    Partial<Pick<CompiledCapabilityResourceRepository, "capabilityResources">>,
+): BindingSchema => ({
   format: "quixos-bindings",
   version: 1,
-  interfaceTemplates: compiled.resources.flatMap((node) =>
+  interfaceTemplates: (compiled.capabilityResources ?? compiled.resources).flatMap((node) =>
     node.resource.kind === "interface" && node.resource.revision.template ? [node.resource.revision] : [],
   ),
   interfaces: [
     ...new Map(
-      compiled.resources
+      (compiled.capabilityResources ?? compiled.resources)
         .flatMap((node) => [
           ...(node.resource.kind === "interface" ? [node.resource.revision] : []),
-          ...(node.resource.specializations ?? []),
+          ...(node.resource.kind === "build" ? [] : (node.resource.specializations ?? [])),
         ])
         .filter((entry) => !entry.template)
         .map((entry) => [entry.revisionId, entry]),
     ).values(),
   ],
-  packages: compiled.resources.flatMap((node) => (node.resource.kind === "package" ? [node.resource.revision] : [])),
+  packages: (compiled.capabilityResources ?? compiled.resources).flatMap((node) =>
+    node.resource.kind === "package" ? [node.resource.revision] : [],
+  ),
 });
 
 export const specializeBindingSchema = (
diff --git a/src/capability-language/assembly.ts b/src/capability-language/assembly.ts
index f55edab..748bcaf 100644
--- a/src/capability-language/assembly.ts
+++ b/src/capability-language/assembly.ts
@@ -47,7 +47,7 @@ export type ResolvedCapabilityResource = {
   source: GitSource;
   directory: string;
   lock: QuixosRepositoryLock;
-  resource: CapabilityResource;
+  resource: CapabilityResource | { kind: "build" };
   dependencies: ReadonlyMap<string, ResolvedCapabilityResource>;
 };
 
@@ -56,13 +56,15 @@ export type CompiledWorkspaceRepository = {
   plan: CompiledWorkspaceRevision;
   lock: QuixosRepositoryLock;
   resources: ResolvedCapabilityResource[];
+  capabilityResources: ResolvedCapabilityResource[];
   directResources: ReadonlyMap<string, ResolvedCapabilityResource>;
 };
 
 export type CompiledCapabilityResourceRepository = {
-  resource: CapabilityResource;
+  resource: CapabilityResource | { kind: "build" };
   lock: QuixosRepositoryLock;
   resources: ResolvedCapabilityResource[];
+  capabilityResources: ResolvedCapabilityResource[];
   directResources: ReadonlyMap<string, ResolvedCapabilityResource>;
 };
 
@@ -79,7 +81,10 @@ const assertImportsMatchLock = (
   resources: readonly LockedResource[],
 ) => {
   const authored = [...imports].map(importsKey).sort();
-  const locked = [...resources].map(importsKey).sort();
+  const locked = resources
+    .filter((entry) => entry.kind !== "build")
+    .map(importsKey)
+    .sort();
   if (authored.length !== locked.length || authored.some((entry, index) => entry !== locked[index])) {
     throw new Error(
       `${label} imports do not match quixos.lock:\n` +
@@ -137,13 +142,19 @@ const diagnosticsMessage = (
     })
     .join("\n")}`;
 
-const revisionFor = (node: ResolvedCapabilityResource) => node.resource.revision;
+const revisionFor = (node: ResolvedCapabilityResource) => {
+  if (node.resource.kind === "build") throw Error("Build sources have no capability revision");
+  return node.resource.revision;
+};
 
-const resourceClosure = (roots: readonly ResolvedCapabilityResource[]): ResolvedCapabilityResource[] => {
+const resourceClosure = (
+  roots: readonly ResolvedCapabilityResource[],
+  capabilityOnly = false,
+): ResolvedCapabilityResource[] => {
   const result: ResolvedCapabilityResource[] = [];
   const seen = new Set<string>();
   const visit = (node: ResolvedCapabilityResource) => {
-    if (seen.has(node.key)) return;
+    if (seen.has(node.key) || (capabilityOnly && node.kind === "build")) return;
     seen.add(node.key);
     for (const dependency of node.dependencies.values()) visit(dependency);
     result.push(node);
@@ -155,28 +166,36 @@ const resourceClosure = (roots: readonly ResolvedCapabilityResource[]): Resolved
 const environmentFor = (
   direct: readonly [LockedResource, ResolvedCapabilityResource][],
   closure: readonly ResolvedCapabilityResource[],
-): CapabilityImportEnvironment => ({
-  interfaces: new Map(
-    direct.flatMap(([locked, node]) =>
-      node.resource.kind === "interface" ? [[locked.binding, node.resource.revision] as const] : [],
+): CapabilityImportEnvironment => {
+  closure = resourceClosure(
+    direct.map(([, node]) => node),
+    true,
+  );
+  return {
+    interfaces: new Map(
+      direct.flatMap(([locked, node]) =>
+        node.resource.kind === "interface" ? [[locked.binding, node.resource.revision] as const] : [],
+      ),
     ),
-  ),
-  packages: new Map(
-    direct.flatMap(([locked, node]) =>
-      node.resource.kind === "package" ? [[locked.binding, node.resource.revision] as const] : [],
+    packages: new Map(
+      direct.flatMap(([locked, node]) =>
+        node.resource.kind === "package" ? [[locked.binding, node.resource.revision] as const] : [],
+      ),
     ),
-  ),
-  interfaceClosure: exactRevisions(
-    closure.flatMap((node) => [
-      ...(node.resource.kind === "interface" ? [node.resource.revision] : []),
-      ...(node.resource.specializations ?? []),
-    ]),
-  ),
-  packageClosure: exactRevisions(
-    closure.flatMap((node) => (node.resource.kind === "package" ? [node.resource.revision] : [])),
-  ),
-  externalAtoms: exactAtoms(closure.flatMap((node) => node.resource.externalAtoms)),
-});
+    interfaceClosure: exactRevisions(
+      closure.flatMap((node) => [
+        ...(node.resource.kind === "interface" ? [node.resource.revision] : []),
+        ...(node.resource.kind === "build" ? [] : (node.resource.specializations ?? [])),
+      ]),
+    ),
+    packageClosure: exactRevisions(
+      closure.flatMap((node) => (node.resource.kind === "package" ? [node.resource.revision] : [])),
+    ),
+    externalAtoms: exactAtoms(
+      closure.flatMap((node) => (node.resource.kind === "build" ? [] : node.resource.externalAtoms)),
+    ),
+  };
+};
 
 const createResourceGraphResolver = (quixosCommit: string, resolveResource: CapabilityRepositoryResolver) => {
   const resolved = new Map<string, Promise<ResolvedCapabilityResource>>();
@@ -218,6 +237,19 @@ const createResourceGraphResolver = (quixosCommit: string, resolveResource: Capa
         for (const dependency of lockResult.lock.resources) {
           directPairs.push([dependency, await visit(dependency)]);
         }
+        if (locked.kind === "build") {
+          return {
+            key,
+            kind: locked.kind,
+            source: locked.source,
+            directory: snapshot.directory,
+            lock: lockResult.lock,
+            resource: { kind: "build" as const },
+            dependencies: new Map(
+              directPairs.map(([dependency, node]) => [bindingKey(dependency.kind, dependency.binding), node]),
+            ),
+          };
+        }
         const dependencyClosure = resourceClosure(directPairs.map(([, node]) => node));
         const environment = environmentFor(directPairs, dependencyClosure);
         const manifestName = locked.kind === "interface" ? "interface.qx" : "package.qx";
@@ -332,6 +364,7 @@ export const compileCapabilityResourceRepository = async (options: {
     resource: root.resource,
     lock: root.lock,
     resources: await resolver.nodes(),
+    capabilityResources: resourceClosure([root], true),
     directResources: root.dependencies,
   };
 };
@@ -376,11 +409,13 @@ export const compileWorkspaceRepository = async (options: {
     );
   }
   assertImportsMatchLock(workspacePath, compiled.imports, rootLock.resources);
-  const availableInterfaceIds = new Set(
-    nodes.flatMap((node) => (node.resource.kind === "interface" ? [node.resource.revision.revisionId] : [])),
-  );
+  const availableInterfaceIds = new Set((environment.interfaceClosure ?? []).map((iface) => iface.revisionId));
   const availableAtomIds = new Set(compiled.workspace.atoms.map((atom) => atom.id));
-  for (const node of nodes) {
+  for (const node of resourceClosure(
+    directPairs.map(([, node]) => node),
+    true,
+  )) {
+    if (node.resource.kind === "build") continue;
     for (const requirement of node.resource.externalInterfaces) {
       if (!availableInterfaceIds.has(requirement.revisionId)) {
         throw new Error(
@@ -430,6 +465,10 @@ export const compileWorkspaceRepository = async (options: {
     plan: checked.plan,
     lock: rootLock,
     resources: nodes,
+    capabilityResources: resourceClosure(
+      directPairs.map(([, node]) => node),
+      true,
+    ),
     directResources: new Map(directPairs.map(([locked, node]) => [bindingKey(locked.kind, locked.binding), node])),
   };
 };
diff --git a/src/capability-language/authoring-context.ts b/src/capability-language/authoring-context.ts
index f91a318..2402292 100644
--- a/src/capability-language/authoring-context.ts
+++ b/src/capability-language/authoring-context.ts
@@ -3,7 +3,7 @@ import path from "node:path";
 import { loadQuixosLock, type GitSource } from "../resource-lock/index.js";
 
 export type AuthoringResource = {
-  kind: "workspace" | "interface" | "package";
+  kind: "workspace" | "interface" | "package" | "build";
   directory: string;
   resourceId?: string;
   source?: GitSource;
@@ -31,7 +31,7 @@ export async function authoringContext(start: string) {
         if (typeof entry.directory === "string" && path.isAbsolute(entry.directory))
           entry.directory = path.relative(workbench, entry.directory);
         if (
-          !["interface", "package"].includes(entry.kind) ||
+          !["interface", "package", "build"].includes(entry.kind) ||
           !entry.source ||
           !/^resources\/[A-Za-z0-9][A-Za-z0-9._-]*$/.test(entry.directory)
         ) {
diff --git a/src/capability-language/authoring-inspect.ts b/src/capability-language/authoring-inspect.ts
index 54544f2..c81ae0b 100644
--- a/src/capability-language/authoring-inspect.ts
+++ b/src/capability-language/authoring-inspect.ts
@@ -69,7 +69,7 @@ export async function inspectAuthoringRepository(root: string, historyLimit = 10
       declarations: syntax
         ? [...walkSyntax(syntax.root)]
             .filter((node) =>
-              /^(?:interface|package|atom|state|edge|method|function|event|conformance|component|presentation)\w*Decl$/.test(
+              /^(?:(?:interface|package|atom|state|edge|method|function|event|conformance|presentation)\w*Decl|module(?:Member|Export))$/.test(
                 node.kind,
               ),
             )
diff --git a/src/capability-language/candidate-check.ts b/src/capability-language/candidate-check.ts
index 6a67de9..45c9ea2 100644
--- a/src/capability-language/candidate-check.ts
+++ b/src/capability-language/candidate-check.ts
@@ -209,7 +209,7 @@ export const checkWorkspaceCandidate = async (options: {
       : [];
     const evolution = planEvolution(baseline, compiled.workspace, { reviews });
     blockers.push(...evolution.blockers);
-    for (const resource of compiled.resources.filter((entry) => entry.kind === "package")) {
+    for (const resource of compiled.capabilityResources.filter((entry) => entry.kind === "package")) {
       // Per-package recursive schema, identical to host activation, not unrelated
       // workspace declarations that would unnecessarily invalidate build caches.
       const candidate = await compileCapabilityResourceRepository({
@@ -218,6 +218,7 @@ export const checkWorkspaceCandidate = async (options: {
         source: resource.source,
         resolveResource,
       });
+      if (candidate.resource.kind !== "package") throw Error("Expected checked package contract");
       const schema = path.join(temporary, "bindings.json");
       await fs.writeFile(
         schema,
diff --git a/src/capability-language/checked-build.ts b/src/capability-language/checked-build.ts
index d08b50a..ee04814 100644
--- a/src/capability-language/checked-build.ts
+++ b/src/capability-language/checked-build.ts
@@ -107,7 +107,7 @@ export async function buildCheckedPackage(source: string, schema: string, packag
  * nested fetches. Keep build noise in a named log, with a bounded failure tail. */
 export async function buildImmutableCandidate(
   source: { repository: string; commit: string },
-  kind: "workspace" | "interface" | "package",
+  kind: "workspace" | "interface" | "package" | "build",
   logFile: string,
   contractOnly = false,
 ): Promise<string> {
diff --git a/src/capability-language/execution-scaffold.ts b/src/capability-language/execution-scaffold.ts
index 9ec6fb5..424252a 100644
--- a/src/capability-language/execution-scaffold.ts
+++ b/src/capability-language/execution-scaffold.ts
@@ -56,7 +56,7 @@ export async function executionScaffold(
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = import nixpkgs { inherit system; };
     in {
-      quixosPackages.checkedArtifacts = { plan, generator, core, sharedRuntime, typescript, packageRevisionId, react ? null }:
+      quixosPackages.checkedArtifacts = { plan, generator, core, sharedRuntime, typescript, packageRevisionId, react ? null, ... }:
         (import (helpers + "/artifacts.nix")) {
           inherit pkgs plan core sharedRuntime typescript packageRevisionId;
           protocol = generator;
diff --git a/src/capability-language/git-resolver.ts b/src/capability-language/git-resolver.ts
index c87dcfc..5175e5c 100644
--- a/src/capability-language/git-resolver.ts
+++ b/src/capability-language/git-resolver.ts
@@ -38,7 +38,7 @@ export const createGitCapabilityResolver = async (options: {
       }>;
     };
     for (const entry of document.resources ?? []) {
-      if (entry.kind !== "interface" && entry.kind !== "package") {
+      if (entry.kind !== "interface" && entry.kind !== "package" && entry.kind !== "build") {
         throw new Error(`Snapshot map has unsupported resource kind ${entry.kind}`);
       }
       const key = sourceKey(entry.kind, entry.repository, entry.commit);
diff --git a/src/capability-language/pin-upgrades.ts b/src/capability-language/pin-upgrades.ts
index 5748d98..21b24f9 100644
--- a/src/capability-language/pin-upgrades.ts
+++ b/src/capability-language/pin-upgrades.ts
@@ -19,7 +19,7 @@ import { planEvolution, type WorkspaceRevision, type EvolutionReview } from "../
 import { withFileLock } from "./file-lock.js";
 const execFile = promisify(callback);
 type Source = { repository: string; commit: string };
-export type UpgradeNode = { kind: "workspace" | "package" | "interface"; directory: string; source: Source };
+export type UpgradeNode = { kind: "workspace" | "package" | "interface" | "build"; directory: string; source: Source };
 export type UpgradeSpec = {
   nodes: UpgradeNode[];
   quixos?: Source;
@@ -105,7 +105,7 @@ export const discoverUpgradeSpec = async (workbench: string): Promise<UpgradeSpe
         commit: await command(root, "jj", ["--ignore-working-copy", "log", "--no-graph", "-r", "@", "-T", "commit_id"]),
       },
     },
-    ...graph.resources.map((entry: { kind: "interface" | "package"; directory: string; source: Source }) => ({
+    ...graph.resources.map((entry: { kind: "interface" | "package" | "build"; directory: string; source: Source }) => ({
       kind: entry.kind,
       source: entry.source,
       directory: path.relative(workbench, path.resolve(workbench, entry.directory)),
@@ -139,7 +139,7 @@ export const planPinUpgrades = async (workbenchPath: string, spec: UpgradeSpec):
   const keys = new Map<string, string>();
   for (const node of spec.nodes) {
     validSource(node.source);
-    if (!["workspace", "package", "interface"].includes(node.kind) || keys.has(sourceKey(node)))
+    if (!["workspace", "package", "interface", "build"].includes(node.kind) || keys.has(sourceKey(node)))
       throw new Error("Duplicate/invalid upgrade resource identity");
     keys.set(sourceKey(node), node.directory);
   }
@@ -423,14 +423,14 @@ export const applyPinUpgrades = async (
           const directory = await location(plan.workbench, node.directory);
           const standalone = await compileCapabilityResourceRepository({
             rootDirectory: directory,
-            kind: node.kind as "package" | "interface",
+            kind: node.kind as "package" | "interface" | "build",
             source,
             resolveResource,
           });
           for (const dependency of standalone.resources) resources.set(dependency.key, dependency);
           resources.set(key, {
             key,
-            kind: node.kind as "package" | "interface",
+            kind: node.kind as "package" | "interface" | "build",
             source,
             directory,
             lock: standalone.lock,
@@ -450,11 +450,15 @@ export const applyPinUpgrades = async (
             kind: node.kind,
             source: node.source,
             directory: node.directory,
-            resourceId:
-              node.resource.kind === "interface"
-                ? node.resource.revision.interfaceId
-                : node.resource.revision.packageId,
-            revisionId: node.resource.revision.revisionId,
+            ...(node.resource.kind === "build"
+              ? {}
+              : {
+                  resourceId:
+                    node.resource.kind === "interface"
+                      ? node.resource.revision.interfaceId
+                      : node.resource.revision.packageId,
+                  revisionId: node.resource.revision.revisionId,
+                }),
             dependencies: [...node.dependencies.entries()].map(([binding, dependency]) => ({
               binding,
               resourceKey: dependency.key,
diff --git a/src/capability-language/resource-cli.ts b/src/capability-language/resource-cli.ts
index 77c8de3..ae67357 100644
--- a/src/capability-language/resource-cli.ts
+++ b/src/capability-language/resource-cli.ts
@@ -6,7 +6,7 @@ import { bindingSchema } from "../bindings/index.js";
 import { compileCapabilityResourceRepository, type ResolvedCapabilityResource } from "./assembly.js";
 import { createGitCapabilityResolver } from "./git-resolver.js";
 
-const usage = `usage: quixos-resource-compile --root DIRECTORY --kind interface|package
+const usage = `usage: quixos-resource-compile --root DIRECTORY --kind interface|package|build
        --repository URL --commit GIT_REV --checkout-root DIRECTORY
        [--snapshot-map PATH] [--snapshot-only true] [--graph-out PATH] [--schema-out PATH]
 
@@ -41,7 +41,13 @@ const parseArgs = (args: string[]) => {
   const repository = values.get("--repository");
   const commit = values.get("--commit")?.toLowerCase();
   const checkoutRoot = values.get("--checkout-root");
-  if (!rootDirectory || !repository || !commit || !checkoutRoot || (kind !== "interface" && kind !== "package")) {
+  if (
+    !rootDirectory ||
+    !repository ||
+    !commit ||
+    !checkoutRoot ||
+    (kind !== "interface" && kind !== "package" && kind !== "build")
+  ) {
     throw new Error(usage);
   }
   if (!/^([0-9a-f]{40}|[0-9a-f]{64})$/.test(commit)) {
@@ -67,9 +73,13 @@ const graphEntry = (node: ResolvedCapabilityResource) => ({
   kind: node.kind,
   source: node.source,
   directory: node.directory,
-  resourceId:
-    node.resource.kind === "interface" ? node.resource.revision.interfaceId : node.resource.revision.packageId,
-  revisionId: node.resource.revision.revisionId,
+  ...(node.resource.kind === "build"
+    ? {}
+    : {
+        resourceId:
+          node.resource.kind === "interface" ? node.resource.revision.interfaceId : node.resource.revision.packageId,
+        revisionId: node.resource.revision.revisionId,
+      }),
   dependencies: [...node.dependencies.entries()].map(([binding, dependency]) => ({
     binding,
     resourceKey: dependency.key,
diff --git a/src/capability-language/structural-edits.ts b/src/capability-language/structural-edits.ts
index c73b1a7..65cab67 100644
--- a/src/capability-language/structural-edits.ts
+++ b/src/capability-language/structural-edits.ts
@@ -15,7 +15,7 @@ export type StructuralEdit =
   | { operation: "quixos-pin"; source: { repository: string; commit: string } }
   | {
       operation: "dependency";
-      kind: "interface" | "package";
+      kind: "interface" | "package" | "build";
       name: string;
       source: { repository: string; commit: string } | null;
     };
@@ -29,6 +29,8 @@ const selectable = new Set([
   "packageResourceDecl",
   "atomDecl",
   "valueMember",
+  "moduleMember",
+  "moduleExport",
   "relationshipMember",
   "operationMember",
   "packageOperationExport",
@@ -155,7 +157,7 @@ export const editStructure = (source: string, edit: StructuralEdit): string => {
   if (edit.operation === "dependency") {
     const parsed = parseQuixosLockDocument(source);
     if (!parsed.ok) throw new Error("Cannot scaffold an invalid lockfile");
-    if (!["interface", "package"].includes(edit.kind) || !/^[A-Za-z_][A-Za-z0-9_]*$/.test(edit.name))
+    if (!["interface", "package", "build"].includes(edit.kind) || !/^[A-Za-z_][A-Za-z0-9_]*$/.test(edit.name))
       throw new Error("Invalid dependency selector");
     const parser = new QuixosLockParser(new CommonTokenStream(new QuixosLockLexer(CharStream.fromString(source))));
     const tree = parser.document();
diff --git a/src/capability-language/structural-plan.ts b/src/capability-language/structural-plan.ts
index 5759058..80abff8 100644
--- a/src/capability-language/structural-plan.ts
+++ b/src/capability-language/structural-plan.ts
@@ -13,7 +13,7 @@ import { parseQuixosLockDocument } from "../resource-lock/index.js";
 import { withFileLock } from "./file-lock.js";
 
 export type StructuralRequest = {
-  kind: "workspace" | "interface" | "package";
+  kind: "workspace" | "interface" | "package" | "build";
   source?: { repository: string; commit: string };
   resourceRoot?: string;
   validation?: "syntax" | "resource-graph";
@@ -159,10 +159,10 @@ export const planStructure = async (rootPath: string, request: StructuralRequest
       const resourceRoot = path.join(snapshot.directory, request.resourceRoot ?? "");
       if (request.kind === "workspace")
         await compileWorkspaceRepository({ rootDirectory: resourceRoot, resolveResource });
-      else if (["package", "interface"].includes(request.kind) && request.source) {
+      else if (["package", "interface", "build"].includes(request.kind) && request.source) {
         const compiled = await compileCapabilityResourceRepository({
           rootDirectory: resourceRoot,
-          kind: request.kind as "package" | "interface",
+          kind: request.kind as "package" | "interface" | "build",
           source: { resolver: "git", ...request.source },
           resolveResource,
         });
diff --git a/src/capability-language/tool-cli.ts b/src/capability-language/tool-cli.ts
index fd614ee..c86a7ac 100644
--- a/src/capability-language/tool-cli.ts
+++ b/src/capability-language/tool-cli.ts
@@ -192,16 +192,16 @@ const main = async () => {
   }
   if (command === "check-committed" && !args.includes("--help")) {
     const [kind, repository, commit, log, ...extra] = args;
-    if (!["workspace", "interface", "package"].includes(kind) || !log || extra.length)
-      throw new Error("usage: quixos-qx check-committed workspace|interface|package REPOSITORY COMMIT LOG_FILE");
+    if (!["workspace", "interface", "package", "build"].includes(kind) || !log || extra.length)
+      throw new Error("usage: quixos-qx check-committed workspace|interface|package|build REPOSITORY COMMIT LOG_FILE");
     process.stdout.write(
-      `${await buildImmutableCandidate({ repository, commit }, kind as "workspace" | "interface" | "package", log)}\n`,
+      `${await buildImmutableCandidate({ repository, commit }, kind as "workspace" | "interface" | "package" | "build", log)}\n`,
     );
     return;
   }
   if (!command || command === "--help" || args.includes("--help")) {
     process.stdout.write(
-      "quixos-qx: author-check, author-contract, converge, worklist, inspect, resources, check-committed, source-baseline, scaffold-package, scaffold-interface, scaffold-function, scaffold-query, scaffold-dependency, scaffold-structure, scaffold-resume, pin-upgrade, parse, lint, format\n" +
+      "quixos-qx: author-check, author-contract, converge, worklist, inspect, resources, check-committed, source-baseline, scaffold-package, scaffold-interface, scaffold-build, scaffold-function, scaffold-query, scaffold-dependency, scaffold-structure, scaffold-resume, pin-upgrade, parse, lint, format\n" +
         "inspect WORKBENCH [RESOURCE] shows provisional contracts, with explicit historical fallback; never verification evidence.\n" +
         "resources WORKBENCH lists registered editable repositories. Use qx-workspace for the workspace authoring workflow.\n",
     );
@@ -226,7 +226,7 @@ const main = async () => {
     if (flags.length && !flags[0].startsWith("--")) {
       repository = flags.shift();
       commit = flags.shift();
-    } else if (root && ["interface", "package"].includes(kind) && name) {
+    } else if (root && ["interface", "package", "build"].includes(kind) && name) {
       const context = await authoringContext(root);
       const alias = await realpath(path.join(context.workbench, `${kind}s`, name)).catch(() => null);
       const matches = context.resources.filter(
@@ -256,15 +256,17 @@ const main = async () => {
     }
     if (
       !root ||
-      !["interface", "package"].includes(kind) ||
+      !["interface", "package", "build"].includes(kind) ||
       !/^[A-Za-z_][A-Za-z0-9_]*$/.test(name ?? "") ||
       !repository ||
       !commit ||
       flags.some((flag) => flag !== "--write")
     )
-      throw new Error("usage: quixos-qx scaffold-dependency ROOT interface|package NAME REPOSITORY COMMIT [--write]");
-    const resourceKind = kind as "package" | "interface";
-    let entrypoint: "workspace" | "package" | "interface" | undefined;
+      throw new Error(
+        "usage: quixos-qx scaffold-dependency ROOT interface|package|build NAME REPOSITORY COMMIT [--write]",
+      );
+    const resourceKind = kind as "package" | "interface" | "build";
+    let entrypoint: "workspace" | "package" | "interface" | "build" | undefined;
     for (const candidate of ["workspace", "package", "interface"] as const) {
       try {
         await readFile(path.join(root, `${candidate}.qx`));
@@ -274,7 +276,14 @@ const main = async () => {
         if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error;
       }
     }
-    if (!entrypoint) throw new Error("No QX repository entrypoint");
+    if (!entrypoint) {
+      const context = await authoringContext(root);
+      const selected = context.resources.find(
+        (entry) => path.join(context.workbench, entry.directory) === path.resolve(root),
+      );
+      if (selected?.kind !== "build") throw new Error("No QX repository entrypoint");
+      entrypoint = "build";
+    }
     const lock = await loadQuixosLock(path.join(root, "quixos.lock"));
     if (!lock.ok) throw new Error("Invalid resource lock");
     let target = "quixos.lock";
@@ -288,7 +297,9 @@ const main = async () => {
       source: await authorSource(root),
       validation: "syntax",
       files: [
-        { file: `${entrypoint}.qx`, edits: [{ operation: "import", kind: resourceKind, name }] },
+        ...(entrypoint !== "build" && resourceKind !== "build"
+          ? [{ file: `${entrypoint}.qx`, edits: [{ operation: "import" as const, kind: resourceKind, name }] }]
+          : []),
         {
           file: target,
           edits: [{ operation: "dependency", kind: resourceKind, name, source: { repository, commit } }],
@@ -301,26 +312,45 @@ const main = async () => {
     );
     return;
   }
-  if (command === "scaffold-interface") {
+  if (command === "scaffold-interface" || command === "scaffold-build") {
+    const isBuild = command === "scaffold-build";
     const [root, specFile, ...flags] = args;
     if (!root || !specFile || flags.some((flag) => flag !== "--write"))
-      throw new Error("usage: quixos-qx scaffold-interface ROOT SPEC_JSON [--write]");
+      throw new Error("usage: quixos-qx scaffold-interface|scaffold-build ROOT SPEC_JSON [--write]");
     const spec = (await readSpec(specFile)) as ScaffoldRecipe;
-    if (!spec.name || !/^[A-Za-z_][A-Za-z0-9_]*$/.test(spec.name) || !spec.id || !spec.revision || !spec.tools?.quixos)
-      throw new Error("Interface scaffold requires name, id, revision and Quixos toolchain source");
+    if (
+      !spec.name ||
+      !/^[A-Za-z_][A-Za-z0-9_]*$/.test(spec.name) ||
+      (!isBuild && (!spec.id || !spec.revision)) ||
+      !spec.tools?.quixos
+    )
+      throw new Error(
+        isBuild
+          ? "Build scaffold requires name and Quixos toolchain source"
+          : "Interface scaffold requires name, id, revision and Quixos toolchain source",
+      );
     const request: StructuralRequest = {
-      kind: "interface",
+      kind: isBuild ? "build" : "interface",
       // Like package scaffolding, declaration creation is provisional. Imports
       // can be attached next; the normal check verifies the complete graph.
       validation: "syntax",
       source: spec.source,
       files: [
-        {
-          file: "interface.qx",
-          create:
-            spec.declaration ??
-            `interface ${spec.name} id ${JSON.stringify(spec.id)} revision ${JSON.stringify(spec.revision)} {\n}\n`,
-        },
+        ...(!isBuild
+          ? [
+              {
+                file: "interface.qx",
+                create:
+                  spec.declaration ??
+                  `interface ${spec.name} id ${JSON.stringify(spec.id)} revision ${JSON.stringify(spec.revision)} {\n}\n`,
+              },
+            ]
+          : [
+              {
+                file: "README.md",
+                create: `# ${spec.name}\n\nManaged build dependency. Consumers select sources or Nix outputs through context.dependencies.\n`,
+              },
+            ]),
         {
           file: "quixos.lock",
           create: formatQuixosLock({
diff --git a/src/capability-language/workspace-cli.ts b/src/capability-language/workspace-cli.ts
index e7ddac0..82b4ac0 100644
--- a/src/capability-language/workspace-cli.ts
+++ b/src/capability-language/workspace-cli.ts
@@ -83,11 +83,15 @@ const main = async () => {
             kind: node.kind,
             source: node.source,
             directory: node.directory,
-            resourceId:
-              node.resource.kind === "interface"
-                ? node.resource.revision.interfaceId
-                : node.resource.revision.packageId,
-            revisionId: node.resource.revision.revisionId,
+            ...(node.resource.kind === "build"
+              ? {}
+              : {
+                  resourceId:
+                    node.resource.kind === "interface"
+                      ? node.resource.revision.interfaceId
+                      : node.resource.revision.packageId,
+                  revisionId: node.resource.revision.revisionId,
+                }),
             dependencies: [...node.dependencies.entries()].map(([binding, dependency]) => ({
               binding,
               resourceKey: dependency.key,
@@ -108,14 +112,15 @@ const main = async () => {
   }
   if (options.schemasOut) {
     const schemas: Record<string, unknown> = {};
-    for (const node of assembled.resources.filter((entry) => entry.kind === "package")) {
+    for (const node of assembled.capabilityResources.filter((entry) => entry.kind === "package")) {
       const closure = new Map<string, typeof node>();
       const visit = (entry: typeof node) => {
-        if (closure.has(entry.key)) return;
+        if (closure.has(entry.key) || entry.kind === "build") return;
         closure.set(entry.key, entry);
         entry.dependencies.forEach(visit);
       };
       visit(node);
+      if (node.resource.kind !== "package") continue;
       schemas[node.resource.revision.revisionId] = specializeBindingSchema(
         bindingSchema({ resources: [...closure.values()] }),
         candidate,
diff --git a/src/execution-world/client-contracts.ts b/src/execution-world/client-contracts.ts
index 5dc58fd..7f99735 100644
--- a/src/execution-world/client-contracts.ts
+++ b/src/execution-world/client-contracts.ts
@@ -137,6 +137,7 @@ export function generatePackageQueryClientBindings(
 export function generateComponentClientBindings(plan: ExecutionPlan, packageRevision: string): string {
   const pkg = plan.definition.workspace.packageImports.find((pkg) => pkg.revisionId === packageRevision);
   const components = plan.definition.packages.find((pkg) => pkg.revision === packageRevision)?.components;
+  const modules = plan.definition.packages.find((pkg) => pkg.revision === packageRevision)?.modules ?? [];
   if (!pkg || !components?.length)
     throw new ExecutionPlanError("NO_COMPONENT_CONTRACT", packageRevision, "Package declares no component entries");
   const byId = new Map(plan.definition.workspace.interfaceImports.map((iface) => [iface.revisionId as string, iface]));
@@ -166,12 +167,15 @@ export function generateComponentClientBindings(plan: ExecutionPlan, packageRevi
     subjectBindings +
     "\n" +
     queries +
-    "\nexport interface Components {\n" +
+    "\nexport interface ModuleProps {}\n" +
+    "export type ExtraModuleProps<K extends string> = K extends keyof ModuleProps ? ModuleProps[K] : {};\n" +
+    "export interface Modules {\n" +
     components
-      .map(
-        (component) =>
-          `${JSON.stringify(component.displayName)}: ComponentType<ComponentProps<${JSON.stringify(component.subject)}>>;`,
-      )
+      .map((component) => {
+        const module = modules.find((module) => module.id === component.id)!;
+        const key = JSON.stringify([module.interfaceRevisionId, module.memberId]);
+        return `${JSON.stringify(component.displayName)}: ComponentType<ComponentProps<${JSON.stringify(component.subject)}> & ExtraModuleProps<${JSON.stringify(key)}>>;`;
+      })
       .join("\n") +
     "\n}\n"
   );
diff --git a/src/execution-world/receipts.ts b/src/execution-world/receipts.ts
index b2de639..689c6af 100644
--- a/src/execution-world/receipts.ts
+++ b/src/execution-world/receipts.ts
@@ -39,7 +39,13 @@ export function expectedArtifactReceipt(
   // A process service may implement transactions in any language. Only the
   // checked JS module path promises generated TypeScript adapter evidence.
   const available = new Set(
-    manifest.implementations.filter((i) => i.compatibility === "quixos-js-module-v1").map((i) => i.target),
+    manifest.implementations
+      .filter(
+        (i) =>
+          i.compatibility === "quixos-js-module-v1" &&
+          i.exports.some((id) => pkg.exports.some((entry) => entry.id === id && entry.execution.kind !== "remote")),
+      )
+      .map((i) => i.target),
   );
   const targets = [
     ...new Set(
diff --git a/src/resource-lock/generated/QuixosLock.interp b/src/resource-lock/generated/QuixosLock.interp
index 256f43b..083e8bf 100644
--- a/src/resource-lock/generated/QuixosLock.interp
+++ b/src/resource-lock/generated/QuixosLock.interp
@@ -7,6 +7,7 @@ null
 'source'
 'interface'
 'package'
+'build'
 'repository'
 'commit'
 'policy'
@@ -34,6 +35,7 @@ QUIXOS
 SOURCE
 INTERFACE
 PACKAGE
+BUILD
 REPOSITORY
 COMMIT
 POLICY
@@ -66,4 +68,4 @@ stringLiteral
 
 
 atn:
-[4, 1, 24, 87, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 1, 0, 1, 0, 3, 0, 23, 8, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 5, 0, 31, 8, 0, 10, 0, 12, 0, 34, 9, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 3, 6, 74, 8, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 0, 0, 10, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 0, 2, 1, 0, 6, 7, 1, 0, 12, 14, 81, 0, 20, 1, 0, 0, 0, 2, 38, 1, 0, 0, 0, 4, 42, 1, 0, 0, 0, 6, 47, 1, 0, 0, 0, 8, 51, 1, 0, 0, 0, 10, 53, 1, 0, 0, 0, 12, 62, 1, 0, 0, 0, 14, 80, 1, 0, 0, 0, 16, 82, 1, 0, 0, 0, 18, 84, 1, 0, 0, 0, 20, 22, 5, 1, 0, 0, 21, 23, 5, 2, 0, 0, 22, 21, 1, 0, 0, 0, 22, 23, 1, 0, 0, 0, 23, 24, 1, 0, 0, 0, 24, 25, 5, 3, 0, 0, 25, 26, 5, 19, 0, 0, 26, 32, 5, 16, 0, 0, 27, 31, 3, 2, 1, 0, 28, 31, 3, 6, 3, 0, 29, 31, 3, 4, 2, 0, 30, 27, 1, 0, 0, 0, 30, 28, 1, 0, 0, 0, 30, 29, 1, 0, 0, 0, 31, 34, 1, 0, 0, 0, 32, 30, 1, 0, 0, 0, 32, 33, 1, 0, 0, 0, 33, 35, 1, 0, 0, 0, 34, 32, 1, 0, 0, 0, 35, 36, 5, 17, 0, 0, 36, 37, 5, 0, 0, 1, 37, 1, 1, 0, 0, 0, 38, 39, 5, 4, 0, 0, 39, 40, 5, 5, 0, 0, 40, 41, 3, 12, 6, 0, 41, 3, 1, 0, 0, 0, 42, 43, 3, 8, 4, 0, 43, 44, 3, 16, 8, 0, 44, 45, 5, 5, 0, 0, 45, 46, 3, 10, 5, 0, 46, 5, 1, 0, 0, 0, 47, 48, 5, 15, 0, 0, 48, 49, 3, 18, 9, 0, 49, 50, 5, 18, 0, 0, 50, 7, 1, 0, 0, 0, 51, 52, 7, 0, 0, 0, 52, 9, 1, 0, 0, 0, 53, 54, 5, 16, 0, 0, 54, 55, 5, 8, 0, 0, 55, 56, 3, 18, 9, 0, 56, 57, 5, 18, 0, 0, 57, 58, 5, 9, 0, 0, 58, 59, 3, 18, 9, 0, 59, 60, 5, 18, 0, 0, 60, 61, 5, 17, 0, 0, 61, 11, 1, 0, 0, 0, 62, 63, 5, 16, 0, 0, 63, 64, 5, 8, 0, 0, 64, 65, 3, 18, 9, 0, 65, 73, 5, 18, 0, 0, 66, 67, 5, 10, 0, 0, 67, 68, 3, 14, 7, 0, 68, 69, 5, 18, 0, 0, 69, 70, 5, 11, 0, 0, 70, 71, 3, 18, 9, 0, 71, 72, 5, 18, 0, 0, 72, 74, 1, 0, 0, 0, 73, 66, 1, 0, 0, 0, 73, 74, 1, 0, 0, 0, 74, 75, 1, 0, 0, 0, 75, 76, 5, 9, 0, 0, 76, 77, 3, 18, 9, 0, 77, 78, 5, 18, 0, 0, 78, 79, 5, 17, 0, 0, 79, 13, 1, 0, 0, 0, 80, 81, 7, 1, 0, 0, 81, 15, 1, 0, 0, 0, 82, 83, 5, 20, 0, 0, 83, 17, 1, 0, 0, 0, 84, 85, 5, 21, 0, 0, 85, 19, 1, 0, 0, 0, 4, 22, 30, 32, 73]
\ No newline at end of file
+[4, 1, 25, 87, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 1, 0, 1, 0, 3, 0, 23, 8, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 5, 0, 31, 8, 0, 10, 0, 12, 0, 34, 9, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 3, 6, 74, 8, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 0, 0, 10, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 0, 2, 1, 0, 6, 8, 1, 0, 13, 15, 81, 0, 20, 1, 0, 0, 0, 2, 38, 1, 0, 0, 0, 4, 42, 1, 0, 0, 0, 6, 47, 1, 0, 0, 0, 8, 51, 1, 0, 0, 0, 10, 53, 1, 0, 0, 0, 12, 62, 1, 0, 0, 0, 14, 80, 1, 0, 0, 0, 16, 82, 1, 0, 0, 0, 18, 84, 1, 0, 0, 0, 20, 22, 5, 1, 0, 0, 21, 23, 5, 2, 0, 0, 22, 21, 1, 0, 0, 0, 22, 23, 1, 0, 0, 0, 23, 24, 1, 0, 0, 0, 24, 25, 5, 3, 0, 0, 25, 26, 5, 20, 0, 0, 26, 32, 5, 17, 0, 0, 27, 31, 3, 2, 1, 0, 28, 31, 3, 6, 3, 0, 29, 31, 3, 4, 2, 0, 30, 27, 1, 0, 0, 0, 30, 28, 1, 0, 0, 0, 30, 29, 1, 0, 0, 0, 31, 34, 1, 0, 0, 0, 32, 30, 1, 0, 0, 0, 32, 33, 1, 0, 0, 0, 33, 35, 1, 0, 0, 0, 34, 32, 1, 0, 0, 0, 35, 36, 5, 18, 0, 0, 36, 37, 5, 0, 0, 1, 37, 1, 1, 0, 0, 0, 38, 39, 5, 4, 0, 0, 39, 40, 5, 5, 0, 0, 40, 41, 3, 12, 6, 0, 41, 3, 1, 0, 0, 0, 42, 43, 3, 8, 4, 0, 43, 44, 3, 16, 8, 0, 44, 45, 5, 5, 0, 0, 45, 46, 3, 10, 5, 0, 46, 5, 1, 0, 0, 0, 47, 48, 5, 16, 0, 0, 48, 49, 3, 18, 9, 0, 49, 50, 5, 19, 0, 0, 50, 7, 1, 0, 0, 0, 51, 52, 7, 0, 0, 0, 52, 9, 1, 0, 0, 0, 53, 54, 5, 17, 0, 0, 54, 55, 5, 9, 0, 0, 55, 56, 3, 18, 9, 0, 56, 57, 5, 19, 0, 0, 57, 58, 5, 10, 0, 0, 58, 59, 3, 18, 9, 0, 59, 60, 5, 19, 0, 0, 60, 61, 5, 18, 0, 0, 61, 11, 1, 0, 0, 0, 62, 63, 5, 17, 0, 0, 63, 64, 5, 9, 0, 0, 64, 65, 3, 18, 9, 0, 65, 73, 5, 19, 0, 0, 66, 67, 5, 11, 0, 0, 67, 68, 3, 14, 7, 0, 68, 69, 5, 19, 0, 0, 69, 70, 5, 12, 0, 0, 70, 71, 3, 18, 9, 0, 71, 72, 5, 19, 0, 0, 72, 74, 1, 0, 0, 0, 73, 66, 1, 0, 0, 0, 73, 74, 1, 0, 0, 0, 74, 75, 1, 0, 0, 0, 75, 76, 5, 10, 0, 0, 76, 77, 3, 18, 9, 0, 77, 78, 5, 19, 0, 0, 78, 79, 5, 18, 0, 0, 79, 13, 1, 0, 0, 0, 80, 81, 7, 1, 0, 0, 81, 15, 1, 0, 0, 0, 82, 83, 5, 21, 0, 0, 83, 17, 1, 0, 0, 0, 84, 85, 5, 22, 0, 0, 85, 19, 1, 0, 0, 0, 4, 22, 30, 32, 73]
\ No newline at end of file
diff --git a/src/resource-lock/generated/QuixosLock.tokens b/src/resource-lock/generated/QuixosLock.tokens
index fe6ae89..19c20a7 100644
--- a/src/resource-lock/generated/QuixosLock.tokens
+++ b/src/resource-lock/generated/QuixosLock.tokens
@@ -5,23 +5,24 @@ QUIXOS=4
 SOURCE=5
 INTERFACE=6
 PACKAGE=7
-REPOSITORY=8
-COMMIT=9
-POLICY=10
-REF=11
-PINNED=12
-TRACK_RELEASE=13
-TRACK_DEVELOPMENT=14
-IMPORT=15
-LBRACE=16
-RBRACE=17
-SEMI=18
-INTEGER=19
-IDENTIFIER=20
-STRING_LITERAL=21
-LINE_COMMENT=22
-BLOCK_COMMENT=23
-WS=24
+BUILD=8
+REPOSITORY=9
+COMMIT=10
+POLICY=11
+REF=12
+PINNED=13
+TRACK_RELEASE=14
+TRACK_DEVELOPMENT=15
+IMPORT=16
+LBRACE=17
+RBRACE=18
+SEMI=19
+INTEGER=20
+IDENTIFIER=21
+STRING_LITERAL=22
+LINE_COMMENT=23
+BLOCK_COMMENT=24
+WS=25
 'quixos-lock'=1
 'fragment'=2
 'version'=3
@@ -29,14 +30,15 @@ WS=24
 'source'=5
 'interface'=6
 'package'=7
-'repository'=8
-'commit'=9
-'policy'=10
-'ref'=11
-'pinned'=12
-'track-release'=13
-'track-development'=14
-'import'=15
-'{'=16
-'}'=17
-';'=18
+'build'=8
+'repository'=9
+'commit'=10
+'policy'=11
+'ref'=12
+'pinned'=13
+'track-release'=14
+'track-development'=15
+'import'=16
+'{'=17
+'}'=18
+';'=19
diff --git a/src/resource-lock/generated/QuixosLockLexer.interp b/src/resource-lock/generated/QuixosLockLexer.interp
index 81c332d..9f53487 100644
--- a/src/resource-lock/generated/QuixosLockLexer.interp
+++ b/src/resource-lock/generated/QuixosLockLexer.interp
@@ -7,6 +7,7 @@ null
 'source'
 'interface'
 'package'
+'build'
 'repository'
 'commit'
 'policy'
@@ -34,6 +35,7 @@ QUIXOS
 SOURCE
 INTERFACE
 PACKAGE
+BUILD
 REPOSITORY
 COMMIT
 POLICY
@@ -60,6 +62,7 @@ QUIXOS
 SOURCE
 INTERFACE
 PACKAGE
+BUILD
 REPOSITORY
 COMMIT
 POLICY
@@ -88,4 +91,4 @@ mode names:
 DEFAULT_MODE
 
 atn:
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50, 1, 0, 0, 0, 254, 256, 7, 7, 0, 0, 255, 254, 1, 0, 0, 0, 256, 257, 1, 0, 0, 0, 257, 255, 1, 0, 0, 0, 257, 258, 1, 0, 0, 0, 258, 259, 1, 0, 0, 0, 259, 260, 6, 25, 0, 0, 260, 52, 1, 0, 0, 0, 9, 0, 198, 204, 210, 212, 225, 235, 246, 257, 1, 6, 0, 0]
\ No newline at end of file
+[4, 0, 25, 269, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7, 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25, 2, 26, 7, 26, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 16, 1, 16, 1, 17, 1, 17, 1, 18, 1, 18, 1, 19, 4, 19, 205, 8, 19, 11, 19, 12, 19, 206, 1, 20, 1, 20, 5, 20, 211, 8, 20, 10, 20, 12, 20, 214, 9, 20, 1, 21, 1, 21, 1, 21, 5, 21, 219, 8, 21, 10, 21, 12, 21, 222, 9, 21, 1, 21, 1, 21, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 3, 22, 234, 8, 22, 1, 23, 1, 23, 1, 24, 1, 24, 1, 24, 1, 24, 5, 24, 242, 8, 24, 10, 24, 12, 24, 245, 9, 24, 1, 24, 1, 24, 1, 25, 1, 25, 1, 25, 1, 25, 5, 25, 253, 8, 25, 10, 25, 12, 25, 256, 9, 25, 1, 25, 1, 25, 1, 25, 1, 25, 1, 25, 1, 26, 4, 26, 264, 8, 26, 11, 26, 12, 26, 265, 1, 26, 1, 26, 1, 254, 0, 27, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12, 25, 13, 27, 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 20, 41, 21, 43, 22, 45, 0, 47, 0, 49, 23, 51, 24, 53, 25, 1, 0, 8, 1, 0, 48, 57, 3, 0, 65, 90, 95, 95, 97, 122, 4, 0, 48, 57, 65, 90, 95, 95, 97, 122, 4, 0, 10, 10, 13, 13, 34, 34, 92, 92, 8, 0, 34, 34, 47, 47, 92, 92, 98, 98, 102, 102, 110, 110, 114, 114, 116, 116, 3, 0, 48, 57, 65, 70, 97, 102, 2, 0, 10, 10, 13, 13, 3, 0, 9, 10, 13, 13, 32, 32, 274, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0, 0, 0, 0, 41, 1, 0, 0, 0, 0, 43, 1, 0, 0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1, 0, 0, 0, 0, 53, 1, 0, 0, 0, 1, 55, 1, 0, 0, 0, 3, 67, 1, 0, 0, 0, 5, 76, 1, 0, 0, 0, 7, 84, 1, 0, 0, 0, 9, 91, 1, 0, 0, 0, 11, 98, 1, 0, 0, 0, 13, 108, 1, 0, 0, 0, 15, 116, 1, 0, 0, 0, 17, 122, 1, 0, 0, 0, 19, 133, 1, 0, 0, 0, 21, 140, 1, 0, 0, 0, 23, 147, 1, 0, 0, 0, 25, 151, 1, 0, 0, 0, 27, 158, 1, 0, 0, 0, 29, 172, 1, 0, 0, 0, 31, 190, 1, 0, 0, 0, 33, 197, 1, 0, 0, 0, 35, 199, 1, 0, 0, 0, 37, 201, 1, 0, 0, 0, 39, 204, 1, 0, 0, 0, 41, 208, 1, 0, 0, 0, 43, 215, 1, 0, 0, 0, 45, 225, 1, 0, 0, 0, 47, 235, 1, 0, 0, 0, 49, 237, 1, 0, 0, 0, 51, 248, 1, 0, 0, 0, 53, 263, 1, 0, 0, 0, 55, 56, 5, 113, 0, 0, 56, 57, 5, 117, 0, 0, 57, 58, 5, 105, 0, 0, 58, 59, 5, 120, 0, 0, 59, 60, 5, 111, 0, 0, 60, 61, 5, 115, 0, 0, 61, 62, 5, 45, 0, 0, 62, 63, 5, 108, 0, 0, 63, 64, 5, 111, 0, 0, 64, 65, 5, 99, 0, 0, 65, 66, 5, 107, 0, 0, 66, 2, 1, 0, 0, 0, 67, 68, 5, 102, 0, 0, 68, 69, 5, 114, 0, 0, 69, 70, 5, 97, 0, 0, 70, 71, 5, 103, 0, 0, 71, 72, 5, 109, 0, 0, 72, 73, 5, 101, 0, 0, 73, 74, 5, 110, 0, 0, 74, 75, 5, 116, 0, 0, 75, 4, 1, 0, 0, 0, 76, 77, 5, 118, 0, 0, 77, 78, 5, 101, 0, 0, 78, 79, 5, 114, 0, 0, 79, 80, 5, 115, 0, 0, 80, 81, 5, 105, 0, 0, 81, 82, 5, 111, 0, 0, 82, 83, 5, 110, 0, 0, 83, 6, 1, 0, 0, 0, 84, 85, 5, 113, 0, 0, 85, 86, 5, 117, 0, 0, 86, 87, 5, 105, 0, 0, 87, 88, 5, 120, 0, 0, 88, 89, 5, 111, 0, 0, 89, 90, 5, 115, 0, 0, 90, 8, 1, 0, 0, 0, 91, 92, 5, 115, 0, 0, 92, 93, 5, 111, 0, 0, 93, 94, 5, 117, 0, 0, 94, 95, 5, 114, 0, 0, 95, 96, 5, 99, 0, 0, 96, 97, 5, 101, 0, 0, 97, 10, 1, 0, 0, 0, 98, 99, 5, 105, 0, 0, 99, 100, 5, 110, 0, 0, 100, 101, 5, 116, 0, 0, 101, 102, 5, 101, 0, 0, 102, 103, 5, 114, 0, 0, 103, 104, 5, 102, 0, 0, 104, 105, 5, 97, 0, 0, 105, 106, 5, 99, 0, 0, 106, 107, 5, 101, 0, 0, 107, 12, 1, 0, 0, 0, 108, 109, 5, 112, 0, 0, 109, 110, 5, 97, 0, 0, 110, 111, 5, 99, 0, 0, 111, 112, 5, 107, 0, 0, 112, 113, 5, 97, 0, 0, 113, 114, 5, 103, 0, 0, 114, 115, 5, 101, 0, 0, 115, 14, 1, 0, 0, 0, 116, 117, 5, 98, 0, 0, 117, 118, 5, 117, 0, 0, 118, 119, 5, 105, 0, 0, 119, 120, 5, 108, 0, 0, 120, 121, 5, 100, 0, 0, 121, 16, 1, 0, 0, 0, 122, 123, 5, 114, 0, 0, 123, 124, 5, 101, 0, 0, 124, 125, 5, 112, 0, 0, 125, 126, 5, 111, 0, 0, 126, 127, 5, 115, 0, 0, 127, 128, 5, 105, 0, 0, 128, 129, 5, 116, 0, 0, 129, 130, 5, 111, 0, 0, 130, 131, 5, 114, 0, 0, 131, 132, 5, 121, 0, 0, 132, 18, 1, 0, 0, 0, 133, 134, 5, 99, 0, 0, 134, 135, 5, 111, 0, 0, 135, 136, 5, 109, 0, 0, 136, 137, 5, 109, 0, 0, 137, 138, 5, 105, 0, 0, 138, 139, 5, 116, 0, 0, 139, 20, 1, 0, 0, 0, 140, 141, 5, 112, 0, 0, 141, 142, 5, 111, 0, 0, 142, 143, 5, 108, 0, 0, 143, 144, 5, 105, 0, 0, 144, 145, 5, 99, 0, 0, 145, 146, 5, 121, 0, 0, 146, 22, 1, 0, 0, 0, 147, 148, 5, 114, 0, 0, 148, 149, 5, 101, 0, 0, 149, 150, 5, 102, 0, 0, 150, 24, 1, 0, 0, 0, 151, 152, 5, 112, 0, 0, 152, 153, 5, 105, 0, 0, 153, 154, 5, 110, 0, 0, 154, 155, 5, 110, 0, 0, 155, 156, 5, 101, 0, 0, 156, 157, 5, 100, 0, 0, 157, 26, 1, 0, 0, 0, 158, 159, 5, 116, 0, 0, 159, 160, 5, 114, 0, 0, 160, 161, 5, 97, 0, 0, 161, 162, 5, 99, 0, 0, 162, 163, 5, 107, 0, 0, 163, 164, 5, 45, 0, 0, 164, 165, 5, 114, 0, 0, 165, 166, 5, 101, 0, 0, 166, 167, 5, 108, 0, 0, 167, 168, 5, 101, 0, 0, 168, 169, 5, 97, 0, 0, 169, 170, 5, 115, 0, 0, 170, 171, 5, 101, 0, 0, 171, 28, 1, 0, 0, 0, 172, 173, 5, 116, 0, 0, 173, 174, 5, 114, 0, 0, 174, 175, 5, 97, 0, 0, 175, 176, 5, 99, 0, 0, 176, 177, 5, 107, 0, 0, 177, 178, 5, 45, 0, 0, 178, 179, 5, 100, 0, 0, 179, 180, 5, 101, 0, 0, 180, 181, 5, 118, 0, 0, 181, 182, 5, 101, 0, 0, 182, 183, 5, 108, 0, 0, 183, 184, 5, 111, 0, 0, 184, 185, 5, 112, 0, 0, 185, 186, 5, 109, 0, 0, 186, 187, 5, 101, 0, 0, 187, 188, 5, 110, 0, 0, 188, 189, 5, 116, 0, 0, 189, 30, 1, 0, 0, 0, 190, 191, 5, 105, 0, 0, 191, 192, 5, 109, 0, 0, 192, 193, 5, 112, 0, 0, 193, 194, 5, 111, 0, 0, 194, 195, 5, 114, 0, 0, 195, 196, 5, 116, 0, 0, 196, 32, 1, 0, 0, 0, 197, 198, 5, 123, 0, 0, 198, 34, 1, 0, 0, 0, 199, 200, 5, 125, 0, 0, 200, 36, 1, 0, 0, 0, 201, 202, 5, 59, 0, 0, 202, 38, 1, 0, 0, 0, 203, 205, 7, 0, 0, 0, 204, 203, 1, 0, 0, 0, 205, 206, 1, 0, 0, 0, 206, 204, 1, 0, 0, 0, 206, 207, 1, 0, 0, 0, 207, 40, 1, 0, 0, 0, 208, 212, 7, 1, 0, 0, 209, 211, 7, 2, 0, 0, 210, 209, 1, 0, 0, 0, 211, 214, 1, 0, 0, 0, 212, 210, 1, 0, 0, 0, 212, 213, 1, 0, 0, 0, 213, 42, 1, 0, 0, 0, 214, 212, 1, 0, 0, 0, 215, 220, 5, 34, 0, 0, 216, 219, 3, 45, 22, 0, 217, 219, 8, 3, 0, 0, 218, 216, 1, 0, 0, 0, 218, 217, 1, 0, 0, 0, 219, 222, 1, 0, 0, 0, 220, 218, 1, 0, 0, 0, 220, 221, 1, 0, 0, 0, 221, 223, 1, 0, 0, 0, 222, 220, 1, 0, 0, 0, 223, 224, 5, 34, 0, 0, 224, 44, 1, 0, 0, 0, 225, 233, 5, 92, 0, 0, 226, 234, 7, 4, 0, 0, 227, 228, 5, 117, 0, 0, 228, 229, 3, 47, 23, 0, 229, 230, 3, 47, 23, 0, 230, 231, 3, 47, 23, 0, 231, 232, 3, 47, 23, 0, 232, 234, 1, 0, 0, 0, 233, 226, 1, 0, 0, 0, 233, 227, 1, 0, 0, 0, 234, 46, 1, 0, 0, 0, 235, 236, 7, 5, 0, 0, 236, 48, 1, 0, 0, 0, 237, 238, 5, 47, 0, 0, 238, 239, 5, 47, 0, 0, 239, 243, 1, 0, 0, 0, 240, 242, 8, 6, 0, 0, 241, 240, 1, 0, 0, 0, 242, 245, 1, 0, 0, 0, 243, 241, 1, 0, 0, 0, 243, 244, 1, 0, 0, 0, 244, 246, 1, 0, 0, 0, 245, 243, 1, 0, 0, 0, 246, 247, 6, 24, 0, 0, 247, 50, 1, 0, 0, 0, 248, 249, 5, 47, 0, 0, 249, 250, 5, 42, 0, 0, 250, 254, 1, 0, 0, 0, 251, 253, 9, 0, 0, 0, 252, 251, 1, 0, 0, 0, 253, 256, 1, 0, 0, 0, 254, 255, 1, 0, 0, 0, 254, 252, 1, 0, 0, 0, 255, 257, 1, 0, 0, 0, 256, 254, 1, 0, 0, 0, 257, 258, 5, 42, 0, 0, 258, 259, 5, 47, 0, 0, 259, 260, 1, 0, 0, 0, 260, 261, 6, 25, 0, 0, 261, 52, 1, 0, 0, 0, 262, 264, 7, 7, 0, 0, 263, 262, 1, 0, 0, 0, 264, 265, 1, 0, 0, 0, 265, 263, 1, 0, 0, 0, 265, 266, 1, 0, 0, 0, 266, 267, 1, 0, 0, 0, 267, 268, 6, 26, 0, 0, 268, 54, 1, 0, 0, 0, 9, 0, 206, 212, 218, 220, 233, 243, 254, 265, 1, 6, 0, 0]
\ No newline at end of file
diff --git a/src/resource-lock/generated/QuixosLockLexer.tokens b/src/resource-lock/generated/QuixosLockLexer.tokens
index fe6ae89..19c20a7 100644
--- a/src/resource-lock/generated/QuixosLockLexer.tokens
+++ b/src/resource-lock/generated/QuixosLockLexer.tokens
@@ -5,23 +5,24 @@ QUIXOS=4
 SOURCE=5
 INTERFACE=6
 PACKAGE=7
-REPOSITORY=8
-COMMIT=9
-POLICY=10
-REF=11
-PINNED=12
-TRACK_RELEASE=13
-TRACK_DEVELOPMENT=14
-IMPORT=15
-LBRACE=16
-RBRACE=17
-SEMI=18
-INTEGER=19
-IDENTIFIER=20
-STRING_LITERAL=21
-LINE_COMMENT=22
-BLOCK_COMMENT=23
-WS=24
+BUILD=8
+REPOSITORY=9
+COMMIT=10
+POLICY=11
+REF=12
+PINNED=13
+TRACK_RELEASE=14
+TRACK_DEVELOPMENT=15
+IMPORT=16
+LBRACE=17
+RBRACE=18
+SEMI=19
+INTEGER=20
+IDENTIFIER=21
+STRING_LITERAL=22
+LINE_COMMENT=23
+BLOCK_COMMENT=24
+WS=25
 'quixos-lock'=1
 'fragment'=2
 'version'=3
@@ -29,14 +30,15 @@ WS=24
 'source'=5
 'interface'=6
 'package'=7
-'repository'=8
-'commit'=9
-'policy'=10
-'ref'=11
-'pinned'=12
-'track-release'=13
-'track-development'=14
-'import'=15
-'{'=16
-'}'=17
-';'=18
+'build'=8
+'repository'=9
+'commit'=10
+'policy'=11
+'ref'=12
+'pinned'=13
+'track-release'=14
+'track-development'=15
+'import'=16
+'{'=17
+'}'=18
+';'=19
diff --git a/src/resource-lock/generated/QuixosLockLexer.ts b/src/resource-lock/generated/QuixosLockLexer.ts
index 30003f3..821313f 100644
--- a/src/resource-lock/generated/QuixosLockLexer.ts
+++ b/src/resource-lock/generated/QuixosLockLexer.ts
@@ -11,23 +11,24 @@ export class QuixosLockLexer extends antlr.Lexer {
     public static readonly SOURCE = 5;
     public static readonly INTERFACE = 6;
     public static readonly PACKAGE = 7;
-    public static readonly REPOSITORY = 8;
-    public static readonly COMMIT = 9;
-    public static readonly POLICY = 10;
-    public static readonly REF = 11;
-    public static readonly PINNED = 12;
-    public static readonly TRACK_RELEASE = 13;
-    public static readonly TRACK_DEVELOPMENT = 14;
-    public static readonly IMPORT = 15;
-    public static readonly LBRACE = 16;
-    public static readonly RBRACE = 17;
-    public static readonly SEMI = 18;
-    public static readonly INTEGER = 19;
-    public static readonly IDENTIFIER = 20;
-    public static readonly STRING_LITERAL = 21;
-    public static readonly LINE_COMMENT = 22;
-    public static readonly BLOCK_COMMENT = 23;
-    public static readonly WS = 24;
+    public static readonly BUILD = 8;
+    public static readonly REPOSITORY = 9;
+    public static readonly COMMIT = 10;
+    public static readonly POLICY = 11;
+    public static readonly REF = 12;
+    public static readonly PINNED = 13;
+    public static readonly TRACK_RELEASE = 14;
+    public static readonly TRACK_DEVELOPMENT = 15;
+    public static readonly IMPORT = 16;
+    public static readonly LBRACE = 17;
+    public static readonly RBRACE = 18;
+    public static readonly SEMI = 19;
+    public static readonly INTEGER = 20;
+    public static readonly IDENTIFIER = 21;
+    public static readonly STRING_LITERAL = 22;
+    public static readonly LINE_COMMENT = 23;
+    public static readonly BLOCK_COMMENT = 24;
+    public static readonly WS = 25;
 
     public static readonly channelNames = [
         "DEFAULT_TOKEN_CHANNEL", "HIDDEN"
@@ -35,17 +36,17 @@ export class QuixosLockLexer extends antlr.Lexer {
 
     public static readonly literalNames = [
         null, "'quixos-lock'", "'fragment'", "'version'", "'quixos'", "'source'", 
-        "'interface'", "'package'", "'repository'", "'commit'", "'policy'", 
-        "'ref'", "'pinned'", "'track-release'", "'track-development'", "'import'", 
-        "'{'", "'}'", "';'"
+        "'interface'", "'package'", "'build'", "'repository'", "'commit'", 
+        "'policy'", "'ref'", "'pinned'", "'track-release'", "'track-development'", 
+        "'import'", "'{'", "'}'", "';'"
     ];
 
     public static readonly symbolicNames = [
         null, "QUIXOS_LOCK", "FRAGMENT", "VERSION", "QUIXOS", "SOURCE", 
-        "INTERFACE", "PACKAGE", "REPOSITORY", "COMMIT", "POLICY", "REF", 
-        "PINNED", "TRACK_RELEASE", "TRACK_DEVELOPMENT", "IMPORT", "LBRACE", 
-        "RBRACE", "SEMI", "INTEGER", "IDENTIFIER", "STRING_LITERAL", "LINE_COMMENT", 
-        "BLOCK_COMMENT", "WS"
+        "INTERFACE", "PACKAGE", "BUILD", "REPOSITORY", "COMMIT", "POLICY", 
+        "REF", "PINNED", "TRACK_RELEASE", "TRACK_DEVELOPMENT", "IMPORT", 
+        "LBRACE", "RBRACE", "SEMI", "INTEGER", "IDENTIFIER", "STRING_LITERAL", 
+        "LINE_COMMENT", "BLOCK_COMMENT", "WS"
     ];
 
     public static readonly modeNames = [
@@ -54,10 +55,10 @@ export class QuixosLockLexer extends antlr.Lexer {
 
     public static readonly ruleNames = [
         "QUIXOS_LOCK", "FRAGMENT", "VERSION", "QUIXOS", "SOURCE", "INTERFACE", 
-        "PACKAGE", "REPOSITORY", "COMMIT", "POLICY", "REF", "PINNED", "TRACK_RELEASE", 
-        "TRACK_DEVELOPMENT", "IMPORT", "LBRACE", "RBRACE", "SEMI", "INTEGER", 
-        "IDENTIFIER", "STRING_LITERAL", "ESC", "HEX", "LINE_COMMENT", "BLOCK_COMMENT", 
-        "WS",
+        "PACKAGE", "BUILD", "REPOSITORY", "COMMIT", "POLICY", "REF", "PINNED", 
+        "TRACK_RELEASE", "TRACK_DEVELOPMENT", "IMPORT", "LBRACE", "RBRACE", 
+        "SEMI", "INTEGER", "IDENTIFIER", "STRING_LITERAL", "ESC", "HEX", 
+        "LINE_COMMENT", "BLOCK_COMMENT", "WS",
     ];
 
 
@@ -79,99 +80,101 @@ export class QuixosLockLexer extends antlr.Lexer {
     public get modeNames(): string[] { return QuixosLockLexer.modeNames; }
 
     public static readonly _serializedATN: number[] = [
-        4,0,24,261,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,
+        4,0,25,269,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,
         2,6,7,6,2,7,7,7,2,8,7,8,2,9,7,9,2,10,7,10,2,11,7,11,2,12,7,12,2,
         13,7,13,2,14,7,14,2,15,7,15,2,16,7,16,2,17,7,17,2,18,7,18,2,19,7,
-        19,2,20,7,20,2,21,7,21,2,22,7,22,2,23,7,23,2,24,7,24,2,25,7,25,1,
-        0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,1,1,1,1,1,1,1,
-        1,1,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,3,1,3,1,3,1,
-        3,1,3,1,3,1,3,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,5,1,5,1,5,1,5,1,5,1,
-        5,1,5,1,5,1,5,1,5,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,7,1,7,1,7,1,
-        7,1,7,1,7,1,7,1,7,1,7,1,7,1,7,1,8,1,8,1,8,1,8,1,8,1,8,1,8,1,9,1,
-        9,1,9,1,9,1,9,1,9,1,9,1,10,1,10,1,10,1,10,1,11,1,11,1,11,1,11,1,
-        11,1,11,1,11,1,12,1,12,1,12,1,12,1,12,1,12,1,12,1,12,1,12,1,12,1,
-        12,1,12,1,12,1,12,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,
-        13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,14,1,14,1,14,1,14,1,
-        14,1,14,1,14,1,15,1,15,1,16,1,16,1,17,1,17,1,18,4,18,197,8,18,11,
-        18,12,18,198,1,19,1,19,5,19,203,8,19,10,19,12,19,206,9,19,1,20,1,
-        20,1,20,5,20,211,8,20,10,20,12,20,214,9,20,1,20,1,20,1,21,1,21,1,
-        21,1,21,1,21,1,21,1,21,1,21,3,21,226,8,21,1,22,1,22,1,23,1,23,1,
-        23,1,23,5,23,234,8,23,10,23,12,23,237,9,23,1,23,1,23,1,24,1,24,1,
-        24,1,24,5,24,245,8,24,10,24,12,24,248,9,24,1,24,1,24,1,24,1,24,1,
-        24,1,25,4,25,256,8,25,11,25,12,25,257,1,25,1,25,1,246,0,26,1,1,3,
-        2,5,3,7,4,9,5,11,6,13,7,15,8,17,9,19,10,21,11,23,12,25,13,27,14,
-        29,15,31,16,33,17,35,18,37,19,39,20,41,21,43,0,45,0,47,22,49,23,
-        51,24,1,0,8,1,0,48,57,3,0,65,90,95,95,97,122,4,0,48,57,65,90,95,
-        95,97,122,4,0,10,10,13,13,34,34,92,92,8,0,34,34,47,47,92,92,98,98,
-        102,102,110,110,114,114,116,116,3,0,48,57,65,70,97,102,2,0,10,10,
-        13,13,3,0,9,10,13,13,32,32,266,0,1,1,0,0,0,0,3,1,0,0,0,0,5,1,0,0,
-        0,0,7,1,0,0,0,0,9,1,0,0,0,0,11,1,0,0,0,0,13,1,0,0,0,0,15,1,0,0,0,
-        0,17,1,0,0,0,0,19,1,0,0,0,0,21,1,0,0,0,0,23,1,0,0,0,0,25,1,0,0,0,
-        0,27,1,0,0,0,0,29,1,0,0,0,0,31,1,0,0,0,0,33,1,0,0,0,0,35,1,0,0,0,
-        0,37,1,0,0,0,0,39,1,0,0,0,0,41,1,0,0,0,0,47,1,0,0,0,0,49,1,0,0,0,
-        0,51,1,0,0,0,1,53,1,0,0,0,3,65,1,0,0,0,5,74,1,0,0,0,7,82,1,0,0,0,
-        9,89,1,0,0,0,11,96,1,0,0,0,13,106,1,0,0,0,15,114,1,0,0,0,17,125,
-        1,0,0,0,19,132,1,0,0,0,21,139,1,0,0,0,23,143,1,0,0,0,25,150,1,0,
-        0,0,27,164,1,0,0,0,29,182,1,0,0,0,31,189,1,0,0,0,33,191,1,0,0,0,
-        35,193,1,0,0,0,37,196,1,0,0,0,39,200,1,0,0,0,41,207,1,0,0,0,43,217,
-        1,0,0,0,45,227,1,0,0,0,47,229,1,0,0,0,49,240,1,0,0,0,51,255,1,0,
-        0,0,53,54,5,113,0,0,54,55,5,117,0,0,55,56,5,105,0,0,56,57,5,120,
-        0,0,57,58,5,111,0,0,58,59,5,115,0,0,59,60,5,45,0,0,60,61,5,108,0,
-        0,61,62,5,111,0,0,62,63,5,99,0,0,63,64,5,107,0,0,64,2,1,0,0,0,65,
-        66,5,102,0,0,66,67,5,114,0,0,67,68,5,97,0,0,68,69,5,103,0,0,69,70,
-        5,109,0,0,70,71,5,101,0,0,71,72,5,110,0,0,72,73,5,116,0,0,73,4,1,
-        0,0,0,74,75,5,118,0,0,75,76,5,101,0,0,76,77,5,114,0,0,77,78,5,115,
-        0,0,78,79,5,105,0,0,79,80,5,111,0,0,80,81,5,110,0,0,81,6,1,0,0,0,
-        82,83,5,113,0,0,83,84,5,117,0,0,84,85,5,105,0,0,85,86,5,120,0,0,
-        86,87,5,111,0,0,87,88,5,115,0,0,88,8,1,0,0,0,89,90,5,115,0,0,90,
-        91,5,111,0,0,91,92,5,117,0,0,92,93,5,114,0,0,93,94,5,99,0,0,94,95,
-        5,101,0,0,95,10,1,0,0,0,96,97,5,105,0,0,97,98,5,110,0,0,98,99,5,
-        116,0,0,99,100,5,101,0,0,100,101,5,114,0,0,101,102,5,102,0,0,102,
-        103,5,97,0,0,103,104,5,99,0,0,104,105,5,101,0,0,105,12,1,0,0,0,106,
-        107,5,112,0,0,107,108,5,97,0,0,108,109,5,99,0,0,109,110,5,107,0,
-        0,110,111,5,97,0,0,111,112,5,103,0,0,112,113,5,101,0,0,113,14,1,
-        0,0,0,114,115,5,114,0,0,115,116,5,101,0,0,116,117,5,112,0,0,117,
-        118,5,111,0,0,118,119,5,115,0,0,119,120,5,105,0,0,120,121,5,116,
-        0,0,121,122,5,111,0,0,122,123,5,114,0,0,123,124,5,121,0,0,124,16,
-        1,0,0,0,125,126,5,99,0,0,126,127,5,111,0,0,127,128,5,109,0,0,128,
-        129,5,109,0,0,129,130,5,105,0,0,130,131,5,116,0,0,131,18,1,0,0,0,
-        132,133,5,112,0,0,133,134,5,111,0,0,134,135,5,108,0,0,135,136,5,
-        105,0,0,136,137,5,99,0,0,137,138,5,121,0,0,138,20,1,0,0,0,139,140,
-        5,114,0,0,140,141,5,101,0,0,141,142,5,102,0,0,142,22,1,0,0,0,143,
-        144,5,112,0,0,144,145,5,105,0,0,145,146,5,110,0,0,146,147,5,110,
-        0,0,147,148,5,101,0,0,148,149,5,100,0,0,149,24,1,0,0,0,150,151,5,
-        116,0,0,151,152,5,114,0,0,152,153,5,97,0,0,153,154,5,99,0,0,154,
-        155,5,107,0,0,155,156,5,45,0,0,156,157,5,114,0,0,157,158,5,101,0,
-        0,158,159,5,108,0,0,159,160,5,101,0,0,160,161,5,97,0,0,161,162,5,
-        115,0,0,162,163,5,101,0,0,163,26,1,0,0,0,164,165,5,116,0,0,165,166,
-        5,114,0,0,166,167,5,97,0,0,167,168,5,99,0,0,168,169,5,107,0,0,169,
-        170,5,45,0,0,170,171,5,100,0,0,171,172,5,101,0,0,172,173,5,118,0,
-        0,173,174,5,101,0,0,174,175,5,108,0,0,175,176,5,111,0,0,176,177,
-        5,112,0,0,177,178,5,109,0,0,178,179,5,101,0,0,179,180,5,110,0,0,
-        180,181,5,116,0,0,181,28,1,0,0,0,182,183,5,105,0,0,183,184,5,109,
-        0,0,184,185,5,112,0,0,185,186,5,111,0,0,186,187,5,114,0,0,187,188,
-        5,116,0,0,188,30,1,0,0,0,189,190,5,123,0,0,190,32,1,0,0,0,191,192,
-        5,125,0,0,192,34,1,0,0,0,193,194,5,59,0,0,194,36,1,0,0,0,195,197,
-        7,0,0,0,196,195,1,0,0,0,197,198,1,0,0,0,198,196,1,0,0,0,198,199,
-        1,0,0,0,199,38,1,0,0,0,200,204,7,1,0,0,201,203,7,2,0,0,202,201,1,
-        0,0,0,203,206,1,0,0,0,204,202,1,0,0,0,204,205,1,0,0,0,205,40,1,0,
-        0,0,206,204,1,0,0,0,207,212,5,34,0,0,208,211,3,43,21,0,209,211,8,
-        3,0,0,210,208,1,0,0,0,210,209,1,0,0,0,211,214,1,0,0,0,212,210,1,
-        0,0,0,212,213,1,0,0,0,213,215,1,0,0,0,214,212,1,0,0,0,215,216,5,
-        34,0,0,216,42,1,0,0,0,217,225,5,92,0,0,218,226,7,4,0,0,219,220,5,
-        117,0,0,220,221,3,45,22,0,221,222,3,45,22,0,222,223,3,45,22,0,223,
-        224,3,45,22,0,224,226,1,0,0,0,225,218,1,0,0,0,225,219,1,0,0,0,226,
-        44,1,0,0,0,227,228,7,5,0,0,228,46,1,0,0,0,229,230,5,47,0,0,230,231,
-        5,47,0,0,231,235,1,0,0,0,232,234,8,6,0,0,233,232,1,0,0,0,234,237,
-        1,0,0,0,235,233,1,0,0,0,235,236,1,0,0,0,236,238,1,0,0,0,237,235,
-        1,0,0,0,238,239,6,23,0,0,239,48,1,0,0,0,240,241,5,47,0,0,241,242,
-        5,42,0,0,242,246,1,0,0,0,243,245,9,0,0,0,244,243,1,0,0,0,245,248,
-        1,0,0,0,246,247,1,0,0,0,246,244,1,0,0,0,247,249,1,0,0,0,248,246,
-        1,0,0,0,249,250,5,42,0,0,250,251,5,47,0,0,251,252,1,0,0,0,252,253,
-        6,24,0,0,253,50,1,0,0,0,254,256,7,7,0,0,255,254,1,0,0,0,256,257,
-        1,0,0,0,257,255,1,0,0,0,257,258,1,0,0,0,258,259,1,0,0,0,259,260,
-        6,25,0,0,260,52,1,0,0,0,9,0,198,204,210,212,225,235,246,257,1,6,
-        0,0
+        19,2,20,7,20,2,21,7,21,2,22,7,22,2,23,7,23,2,24,7,24,2,25,7,25,2,
+        26,7,26,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,1,1,
+        1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,3,
+        1,3,1,3,1,3,1,3,1,3,1,3,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,5,1,5,1,5,
+        1,5,1,5,1,5,1,5,1,5,1,5,1,5,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,7,
+        1,7,1,7,1,7,1,7,1,7,1,8,1,8,1,8,1,8,1,8,1,8,1,8,1,8,1,8,1,8,1,8,
+        1,9,1,9,1,9,1,9,1,9,1,9,1,9,1,10,1,10,1,10,1,10,1,10,1,10,1,10,1,
+        11,1,11,1,11,1,11,1,12,1,12,1,12,1,12,1,12,1,12,1,12,1,13,1,13,1,
+        13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,13,1,14,1,
+        14,1,14,1,14,1,14,1,14,1,14,1,14,1,14,1,14,1,14,1,14,1,14,1,14,1,
+        14,1,14,1,14,1,14,1,15,1,15,1,15,1,15,1,15,1,15,1,15,1,16,1,16,1,
+        17,1,17,1,18,1,18,1,19,4,19,205,8,19,11,19,12,19,206,1,20,1,20,5,
+        20,211,8,20,10,20,12,20,214,9,20,1,21,1,21,1,21,5,21,219,8,21,10,
+        21,12,21,222,9,21,1,21,1,21,1,22,1,22,1,22,1,22,1,22,1,22,1,22,1,
+        22,3,22,234,8,22,1,23,1,23,1,24,1,24,1,24,1,24,5,24,242,8,24,10,
+        24,12,24,245,9,24,1,24,1,24,1,25,1,25,1,25,1,25,5,25,253,8,25,10,
+        25,12,25,256,9,25,1,25,1,25,1,25,1,25,1,25,1,26,4,26,264,8,26,11,
+        26,12,26,265,1,26,1,26,1,254,0,27,1,1,3,2,5,3,7,4,9,5,11,6,13,7,
+        15,8,17,9,19,10,21,11,23,12,25,13,27,14,29,15,31,16,33,17,35,18,
+        37,19,39,20,41,21,43,22,45,0,47,0,49,23,51,24,53,25,1,0,8,1,0,48,
+        57,3,0,65,90,95,95,97,122,4,0,48,57,65,90,95,95,97,122,4,0,10,10,
+        13,13,34,34,92,92,8,0,34,34,47,47,92,92,98,98,102,102,110,110,114,
+        114,116,116,3,0,48,57,65,70,97,102,2,0,10,10,13,13,3,0,9,10,13,13,
+        32,32,274,0,1,1,0,0,0,0,3,1,0,0,0,0,5,1,0,0,0,0,7,1,0,0,0,0,9,1,
+        0,0,0,0,11,1,0,0,0,0,13,1,0,0,0,0,15,1,0,0,0,0,17,1,0,0,0,0,19,1,
+        0,0,0,0,21,1,0,0,0,0,23,1,0,0,0,0,25,1,0,0,0,0,27,1,0,0,0,0,29,1,
+        0,0,0,0,31,1,0,0,0,0,33,1,0,0,0,0,35,1,0,0,0,0,37,1,0,0,0,0,39,1,
+        0,0,0,0,41,1,0,0,0,0,43,1,0,0,0,0,49,1,0,0,0,0,51,1,0,0,0,0,53,1,
+        0,0,0,1,55,1,0,0,0,3,67,1,0,0,0,5,76,1,0,0,0,7,84,1,0,0,0,9,91,1,
+        0,0,0,11,98,1,0,0,0,13,108,1,0,0,0,15,116,1,0,0,0,17,122,1,0,0,0,
+        19,133,1,0,0,0,21,140,1,0,0,0,23,147,1,0,0,0,25,151,1,0,0,0,27,158,
+        1,0,0,0,29,172,1,0,0,0,31,190,1,0,0,0,33,197,1,0,0,0,35,199,1,0,
+        0,0,37,201,1,0,0,0,39,204,1,0,0,0,41,208,1,0,0,0,43,215,1,0,0,0,
+        45,225,1,0,0,0,47,235,1,0,0,0,49,237,1,0,0,0,51,248,1,0,0,0,53,263,
+        1,0,0,0,55,56,5,113,0,0,56,57,5,117,0,0,57,58,5,105,0,0,58,59,5,
+        120,0,0,59,60,5,111,0,0,60,61,5,115,0,0,61,62,5,45,0,0,62,63,5,108,
+        0,0,63,64,5,111,0,0,64,65,5,99,0,0,65,66,5,107,0,0,66,2,1,0,0,0,
+        67,68,5,102,0,0,68,69,5,114,0,0,69,70,5,97,0,0,70,71,5,103,0,0,71,
+        72,5,109,0,0,72,73,5,101,0,0,73,74,5,110,0,0,74,75,5,116,0,0,75,
+        4,1,0,0,0,76,77,5,118,0,0,77,78,5,101,0,0,78,79,5,114,0,0,79,80,
+        5,115,0,0,80,81,5,105,0,0,81,82,5,111,0,0,82,83,5,110,0,0,83,6,1,
+        0,0,0,84,85,5,113,0,0,85,86,5,117,0,0,86,87,5,105,0,0,87,88,5,120,
+        0,0,88,89,5,111,0,0,89,90,5,115,0,0,90,8,1,0,0,0,91,92,5,115,0,0,
+        92,93,5,111,0,0,93,94,5,117,0,0,94,95,5,114,0,0,95,96,5,99,0,0,96,
+        97,5,101,0,0,97,10,1,0,0,0,98,99,5,105,0,0,99,100,5,110,0,0,100,
+        101,5,116,0,0,101,102,5,101,0,0,102,103,5,114,0,0,103,104,5,102,
+        0,0,104,105,5,97,0,0,105,106,5,99,0,0,106,107,5,101,0,0,107,12,1,
+        0,0,0,108,109,5,112,0,0,109,110,5,97,0,0,110,111,5,99,0,0,111,112,
+        5,107,0,0,112,113,5,97,0,0,113,114,5,103,0,0,114,115,5,101,0,0,115,
+        14,1,0,0,0,116,117,5,98,0,0,117,118,5,117,0,0,118,119,5,105,0,0,
+        119,120,5,108,0,0,120,121,5,100,0,0,121,16,1,0,0,0,122,123,5,114,
+        0,0,123,124,5,101,0,0,124,125,5,112,0,0,125,126,5,111,0,0,126,127,
+        5,115,0,0,127,128,5,105,0,0,128,129,5,116,0,0,129,130,5,111,0,0,
+        130,131,5,114,0,0,131,132,5,121,0,0,132,18,1,0,0,0,133,134,5,99,
+        0,0,134,135,5,111,0,0,135,136,5,109,0,0,136,137,5,109,0,0,137,138,
+        5,105,0,0,138,139,5,116,0,0,139,20,1,0,0,0,140,141,5,112,0,0,141,
+        142,5,111,0,0,142,143,5,108,0,0,143,144,5,105,0,0,144,145,5,99,0,
+        0,145,146,5,121,0,0,146,22,1,0,0,0,147,148,5,114,0,0,148,149,5,101,
+        0,0,149,150,5,102,0,0,150,24,1,0,0,0,151,152,5,112,0,0,152,153,5,
+        105,0,0,153,154,5,110,0,0,154,155,5,110,0,0,155,156,5,101,0,0,156,
+        157,5,100,0,0,157,26,1,0,0,0,158,159,5,116,0,0,159,160,5,114,0,0,
+        160,161,5,97,0,0,161,162,5,99,0,0,162,163,5,107,0,0,163,164,5,45,
+        0,0,164,165,5,114,0,0,165,166,5,101,0,0,166,167,5,108,0,0,167,168,
+        5,101,0,0,168,169,5,97,0,0,169,170,5,115,0,0,170,171,5,101,0,0,171,
+        28,1,0,0,0,172,173,5,116,0,0,173,174,5,114,0,0,174,175,5,97,0,0,
+        175,176,5,99,0,0,176,177,5,107,0,0,177,178,5,45,0,0,178,179,5,100,
+        0,0,179,180,5,101,0,0,180,181,5,118,0,0,181,182,5,101,0,0,182,183,
+        5,108,0,0,183,184,5,111,0,0,184,185,5,112,0,0,185,186,5,109,0,0,
+        186,187,5,101,0,0,187,188,5,110,0,0,188,189,5,116,0,0,189,30,1,0,
+        0,0,190,191,5,105,0,0,191,192,5,109,0,0,192,193,5,112,0,0,193,194,
+        5,111,0,0,194,195,5,114,0,0,195,196,5,116,0,0,196,32,1,0,0,0,197,
+        198,5,123,0,0,198,34,1,0,0,0,199,200,5,125,0,0,200,36,1,0,0,0,201,
+        202,5,59,0,0,202,38,1,0,0,0,203,205,7,0,0,0,204,203,1,0,0,0,205,
+        206,1,0,0,0,206,204,1,0,0,0,206,207,1,0,0,0,207,40,1,0,0,0,208,212,
+        7,1,0,0,209,211,7,2,0,0,210,209,1,0,0,0,211,214,1,0,0,0,212,210,
+        1,0,0,0,212,213,1,0,0,0,213,42,1,0,0,0,214,212,1,0,0,0,215,220,5,
+        34,0,0,216,219,3,45,22,0,217,219,8,3,0,0,218,216,1,0,0,0,218,217,
+        1,0,0,0,219,222,1,0,0,0,220,218,1,0,0,0,220,221,1,0,0,0,221,223,
+        1,0,0,0,222,220,1,0,0,0,223,224,5,34,0,0,224,44,1,0,0,0,225,233,
+        5,92,0,0,226,234,7,4,0,0,227,228,5,117,0,0,228,229,3,47,23,0,229,
+        230,3,47,23,0,230,231,3,47,23,0,231,232,3,47,23,0,232,234,1,0,0,
+        0,233,226,1,0,0,0,233,227,1,0,0,0,234,46,1,0,0,0,235,236,7,5,0,0,
+        236,48,1,0,0,0,237,238,5,47,0,0,238,239,5,47,0,0,239,243,1,0,0,0,
+        240,242,8,6,0,0,241,240,1,0,0,0,242,245,1,0,0,0,243,241,1,0,0,0,
+        243,244,1,0,0,0,244,246,1,0,0,0,245,243,1,0,0,0,246,247,6,24,0,0,
+        247,50,1,0,0,0,248,249,5,47,0,0,249,250,5,42,0,0,250,254,1,0,0,0,
+        251,253,9,0,0,0,252,251,1,0,0,0,253,256,1,0,0,0,254,255,1,0,0,0,
+        254,252,1,0,0,0,255,257,1,0,0,0,256,254,1,0,0,0,257,258,5,42,0,0,
+        258,259,5,47,0,0,259,260,1,0,0,0,260,261,6,25,0,0,261,52,1,0,0,0,
+        262,264,7,7,0,0,263,262,1,0,0,0,264,265,1,0,0,0,265,263,1,0,0,0,
+        265,266,1,0,0,0,266,267,1,0,0,0,267,268,6,26,0,0,268,54,1,0,0,0,
+        9,0,206,212,218,220,233,243,254,265,1,6,0,0
     ];
 
     private static __ATN: antlr.ATN;
diff --git a/src/resource-lock/generated/QuixosLockParser.ts b/src/resource-lock/generated/QuixosLockParser.ts
index 7f413ef..e557640 100644
--- a/src/resource-lock/generated/QuixosLockParser.ts
+++ b/src/resource-lock/generated/QuixosLockParser.ts
@@ -17,23 +17,24 @@ export class QuixosLockParser extends antlr.Parser {
     public static readonly SOURCE = 5;
     public static readonly INTERFACE = 6;
     public static readonly PACKAGE = 7;
-    public static readonly REPOSITORY = 8;
-    public static readonly COMMIT = 9;
-    public static readonly POLICY = 10;
-    public static readonly REF = 11;
-    public static readonly PINNED = 12;
-    public static readonly TRACK_RELEASE = 13;
-    public static readonly TRACK_DEVELOPMENT = 14;
-    public static readonly IMPORT = 15;
-    public static readonly LBRACE = 16;
-    public static readonly RBRACE = 17;
-    public static readonly SEMI = 18;
-    public static readonly INTEGER = 19;
-    public static readonly IDENTIFIER = 20;
-    public static readonly STRING_LITERAL = 21;
-    public static readonly LINE_COMMENT = 22;
-    public static readonly BLOCK_COMMENT = 23;
-    public static readonly WS = 24;
+    public static readonly BUILD = 8;
+    public static readonly REPOSITORY = 9;
+    public static readonly COMMIT = 10;
+    public static readonly POLICY = 11;
+    public static readonly REF = 12;
+    public static readonly PINNED = 13;
+    public static readonly TRACK_RELEASE = 14;
+    public static readonly TRACK_DEVELOPMENT = 15;
+    public static readonly IMPORT = 16;
+    public static readonly LBRACE = 17;
+    public static readonly RBRACE = 18;
+    public static readonly SEMI = 19;
+    public static readonly INTEGER = 20;
+    public static readonly IDENTIFIER = 21;
+    public static readonly STRING_LITERAL = 22;
+    public static readonly LINE_COMMENT = 23;
+    public static readonly BLOCK_COMMENT = 24;
+    public static readonly WS = 25;
     public static readonly RULE_document = 0;
     public static readonly RULE_quixosEntry = 1;
     public static readonly RULE_resourceEntry = 2;
@@ -47,17 +48,17 @@ export class QuixosLockParser extends antlr.Parser {
 
     public static readonly literalNames = [
         null, "'quixos-lock'", "'fragment'", "'version'", "'quixos'", "'source'", 
-        "'interface'", "'package'", "'repository'", "'commit'", "'policy'", 
-        "'ref'", "'pinned'", "'track-release'", "'track-development'", "'import'", 
-        "'{'", "'}'", "';'"
+        "'interface'", "'package'", "'build'", "'repository'", "'commit'", 
+        "'policy'", "'ref'", "'pinned'", "'track-release'", "'track-development'", 
+        "'import'", "'{'", "'}'", "';'"
     ];
 
     public static readonly symbolicNames = [
         null, "QUIXOS_LOCK", "FRAGMENT", "VERSION", "QUIXOS", "SOURCE", 
-        "INTERFACE", "PACKAGE", "REPOSITORY", "COMMIT", "POLICY", "REF", 
-        "PINNED", "TRACK_RELEASE", "TRACK_DEVELOPMENT", "IMPORT", "LBRACE", 
-        "RBRACE", "SEMI", "INTEGER", "IDENTIFIER", "STRING_LITERAL", "LINE_COMMENT", 
-        "BLOCK_COMMENT", "WS"
+        "INTERFACE", "PACKAGE", "BUILD", "REPOSITORY", "COMMIT", "POLICY", 
+        "REF", "PINNED", "TRACK_RELEASE", "TRACK_DEVELOPMENT", "IMPORT", 
+        "LBRACE", "RBRACE", "SEMI", "INTEGER", "IDENTIFIER", "STRING_LITERAL", 
+        "LINE_COMMENT", "BLOCK_COMMENT", "WS"
     ];
     public static readonly ruleNames = [
         "document", "quixosEntry", "resourceEntry", "importEntry", "resourceKind", 
@@ -107,7 +108,7 @@ export class QuixosLockParser extends antlr.Parser {
             this.state = 32;
             this.errorHandler.sync(this);
             _la = this.tokenStream.LA(1);
-            while ((((_la) & ~0x1F) === 0 && ((1 << _la) & 32976) !== 0)) {
+            while ((((_la) & ~0x1F) === 0 && ((1 << _la) & 66000) !== 0)) {
                 {
                 this.state = 30;
                 this.errorHandler.sync(this);
@@ -126,6 +127,7 @@ export class QuixosLockParser extends antlr.Parser {
                     break;
                 case QuixosLockParser.INTERFACE:
                 case QuixosLockParser.PACKAGE:
+                case QuixosLockParser.BUILD:
                     {
                     this.state = 29;
                     this.resourceEntry();
@@ -250,7 +252,7 @@ export class QuixosLockParser extends antlr.Parser {
             {
             this.state = 51;
             _la = this.tokenStream.LA(1);
-            if(!(_la === 6 || _la === 7)) {
+            if(!((((_la) & ~0x1F) === 0 && ((1 << _la) & 448) !== 0))) {
             this.errorHandler.recoverInline(this);
             }
             else {
@@ -327,7 +329,7 @@ export class QuixosLockParser extends antlr.Parser {
             this.state = 73;
             this.errorHandler.sync(this);
             _la = this.tokenStream.LA(1);
-            if (_la === 10) {
+            if (_la === 11) {
                 {
                 this.state = 66;
                 this.match(QuixosLockParser.POLICY);
@@ -376,7 +378,7 @@ export class QuixosLockParser extends antlr.Parser {
             {
             this.state = 80;
             _la = this.tokenStream.LA(1);
-            if(!((((_la) & ~0x1F) === 0 && ((1 << _la) & 28672) !== 0))) {
+            if(!((((_la) & ~0x1F) === 0 && ((1 << _la) & 57344) !== 0))) {
             this.errorHandler.recoverInline(this);
             }
             else {
@@ -446,31 +448,31 @@ export class QuixosLockParser extends antlr.Parser {
     }
 
     public static readonly _serializedATN: number[] = [
-        4,1,24,87,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,2,6,7,
+        4,1,25,87,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,2,6,7,
         6,2,7,7,7,2,8,7,8,2,9,7,9,1,0,1,0,3,0,23,8,0,1,0,1,0,1,0,1,0,1,0,
         1,0,5,0,31,8,0,10,0,12,0,34,9,0,1,0,1,0,1,0,1,1,1,1,1,1,1,1,1,2,
         1,2,1,2,1,2,1,2,1,3,1,3,1,3,1,3,1,4,1,4,1,5,1,5,1,5,1,5,1,5,1,5,
         1,5,1,5,1,5,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,6,1,6,3,6,74,8,
         6,1,6,1,6,1,6,1,6,1,6,1,7,1,7,1,8,1,8,1,9,1,9,1,9,0,0,10,0,2,4,6,
-        8,10,12,14,16,18,0,2,1,0,6,7,1,0,12,14,81,0,20,1,0,0,0,2,38,1,0,
+        8,10,12,14,16,18,0,2,1,0,6,8,1,0,13,15,81,0,20,1,0,0,0,2,38,1,0,
         0,0,4,42,1,0,0,0,6,47,1,0,0,0,8,51,1,0,0,0,10,53,1,0,0,0,12,62,1,
         0,0,0,14,80,1,0,0,0,16,82,1,0,0,0,18,84,1,0,0,0,20,22,5,1,0,0,21,
         23,5,2,0,0,22,21,1,0,0,0,22,23,1,0,0,0,23,24,1,0,0,0,24,25,5,3,0,
-        0,25,26,5,19,0,0,26,32,5,16,0,0,27,31,3,2,1,0,28,31,3,6,3,0,29,31,
+        0,25,26,5,20,0,0,26,32,5,17,0,0,27,31,3,2,1,0,28,31,3,6,3,0,29,31,
         3,4,2,0,30,27,1,0,0,0,30,28,1,0,0,0,30,29,1,0,0,0,31,34,1,0,0,0,
         32,30,1,0,0,0,32,33,1,0,0,0,33,35,1,0,0,0,34,32,1,0,0,0,35,36,5,
-        17,0,0,36,37,5,0,0,1,37,1,1,0,0,0,38,39,5,4,0,0,39,40,5,5,0,0,40,
+        18,0,0,36,37,5,0,0,1,37,1,1,0,0,0,38,39,5,4,0,0,39,40,5,5,0,0,40,
         41,3,12,6,0,41,3,1,0,0,0,42,43,3,8,4,0,43,44,3,16,8,0,44,45,5,5,
-        0,0,45,46,3,10,5,0,46,5,1,0,0,0,47,48,5,15,0,0,48,49,3,18,9,0,49,
-        50,5,18,0,0,50,7,1,0,0,0,51,52,7,0,0,0,52,9,1,0,0,0,53,54,5,16,0,
-        0,54,55,5,8,0,0,55,56,3,18,9,0,56,57,5,18,0,0,57,58,5,9,0,0,58,59,
-        3,18,9,0,59,60,5,18,0,0,60,61,5,17,0,0,61,11,1,0,0,0,62,63,5,16,
-        0,0,63,64,5,8,0,0,64,65,3,18,9,0,65,73,5,18,0,0,66,67,5,10,0,0,67,
-        68,3,14,7,0,68,69,5,18,0,0,69,70,5,11,0,0,70,71,3,18,9,0,71,72,5,
-        18,0,0,72,74,1,0,0,0,73,66,1,0,0,0,73,74,1,0,0,0,74,75,1,0,0,0,75,
-        76,5,9,0,0,76,77,3,18,9,0,77,78,5,18,0,0,78,79,5,17,0,0,79,13,1,
-        0,0,0,80,81,7,1,0,0,81,15,1,0,0,0,82,83,5,20,0,0,83,17,1,0,0,0,84,
-        85,5,21,0,0,85,19,1,0,0,0,4,22,30,32,73
+        0,0,45,46,3,10,5,0,46,5,1,0,0,0,47,48,5,16,0,0,48,49,3,18,9,0,49,
+        50,5,19,0,0,50,7,1,0,0,0,51,52,7,0,0,0,52,9,1,0,0,0,53,54,5,17,0,
+        0,54,55,5,9,0,0,55,56,3,18,9,0,56,57,5,19,0,0,57,58,5,10,0,0,58,
+        59,3,18,9,0,59,60,5,19,0,0,60,61,5,18,0,0,61,11,1,0,0,0,62,63,5,
+        17,0,0,63,64,5,9,0,0,64,65,3,18,9,0,65,73,5,19,0,0,66,67,5,11,0,
+        0,67,68,3,14,7,0,68,69,5,19,0,0,69,70,5,12,0,0,70,71,3,18,9,0,71,
+        72,5,19,0,0,72,74,1,0,0,0,73,66,1,0,0,0,73,74,1,0,0,0,74,75,1,0,
+        0,0,75,76,5,10,0,0,76,77,3,18,9,0,77,78,5,19,0,0,78,79,5,18,0,0,
+        79,13,1,0,0,0,80,81,7,1,0,0,81,15,1,0,0,0,82,83,5,21,0,0,83,17,1,
+        0,0,0,84,85,5,22,0,0,85,19,1,0,0,0,4,22,30,32,73
     ];
 
     private static __ATN: antlr.ATN;
@@ -648,6 +650,9 @@ export class ResourceKindContext extends antlr.ParserRuleContext {
     public PACKAGE(): antlr.TerminalNode | null {
         return this.getToken(QuixosLockParser.PACKAGE, 0);
     }
+    public BUILD(): antlr.TerminalNode | null {
+        return this.getToken(QuixosLockParser.BUILD, 0);
+    }
     public override get ruleIndex(): number {
         return QuixosLockParser.RULE_resourceKind;
     }
diff --git a/src/resource-lock/parser.ts b/src/resource-lock/parser.ts
index 4e633af..4242635 100644
--- a/src/resource-lock/parser.ts
+++ b/src/resource-lock/parser.ts
@@ -296,7 +296,11 @@ export const parseQuixosLockDocument = (source: string, fileName = "<memory>"):
   const resources: LockedResource[] = [];
   const bindings = new Set<string>();
   for (const [index, context] of tree.resourceEntry().entries()) {
-    const kind = context.resourceKind().INTERFACE() ? "interface" : "package";
+    const kind = context.resourceKind().INTERFACE()
+      ? "interface"
+      : context.resourceKind().BUILD()
+        ? "build"
+        : "package";
     const binding = context.identifier().getText();
     const key = `${kind}\0${binding}`;
     if (bindings.has(key)) {
diff --git a/src/resource-lock/types.ts b/src/resource-lock/types.ts
index a7cf809..d397b75 100644
--- a/src/resource-lock/types.ts
+++ b/src/resource-lock/types.ts
@@ -21,7 +21,7 @@ export type QuixosSource = GitSource &
       }
   );
 
-export type LockedResourceKind = "interface" | "package";
+export type LockedResourceKind = "interface" | "package" | "build";
 
 export type LockedResource = {
   kind: LockedResourceKind;
diff --git a/test/artifact-files.test.ts b/test/artifact-files.test.ts
index c77c55b..a8cf42c 100644
--- a/test/artifact-files.test.ts
+++ b/test/artifact-files.test.ts
@@ -154,3 +154,22 @@ test("transaction process services do not promise generated TypeScript modules",
     throw Error("No adapter claimed");
   });
 });
+
+test("a remote export group in a mixed package witnesses only its own adapter", async () => {
+  const { asyncObjectPlan } = await import("./async-fixture.js");
+  const { expectedArtifactReceipt } = await import("../src/execution-world/receipts.js");
+  const plan = await asyncObjectPlan();
+  const fixture = buildArtifactFixture(plan, "async:controller-runtime@1");
+  const pkg = plan.definition.packages.find((entry) => entry.revision === fixture.manifest.packageRevisionId)!;
+  fixture.manifest.implementations = fixture.manifest.implementations.filter(
+    (entry) => entry.target === "server" && entry.compatibility === "quixos-js-module-v1",
+  );
+  for (const implementation of fixture.manifest.implementations)
+    implementation.exports = implementation.exports.filter((id) =>
+      pkg.exports.some((entry) => entry.id === id && entry.execution.kind === "remote"),
+    );
+  assert.deepEqual(
+    expectedArtifactReceipt(plan, fixture.manifest, "a".repeat(64)).receipt.generated.map((file) => file.path),
+    ["share/quixos/generated/remote.ts"],
+  );
+});
diff --git a/test/build-dependencies.test.ts b/test/build-dependencies.test.ts
new file mode 100644
index 0000000..ccd9f82
--- /dev/null
+++ b/test/build-dependencies.test.ts
@@ -0,0 +1,76 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { compileWorkspaceRepository, compileCapabilityResourceRepository } from "../src/capability-language/index.js";
+import { bindingSchema } from "../src/bindings/index.js";
+import { parseQuixosLockDocument } from "../src/resource-lock/index.js";
+import { editStructure } from "../src/capability-language/structural-edits.js";
+
+const commit = "a".repeat(40);
+const entry = (kind: string, name: string) =>
+  `${kind} ${name} source {repository "https://example.test/${name}.git"; commit "${commit}";}`;
+const lock = (entries = "") =>
+  `quixos-lock version 1 {quixos source {repository "https://example.test/quixos.git"; commit "${commit}";} ${entries}}`;
+
+test("build dependency closures are retained without installing their capability descendants", async (t) => {
+  const directory = await fs.mkdtemp(path.join(os.tmpdir(), "qx-build-deps-"));
+  t.after(() => fs.rm(directory, { recursive: true, force: true }));
+  const write = async (name: string, files: Record<string, string>) => {
+    await fs.mkdir(path.join(directory, name));
+    for (const [file, text] of Object.entries(files)) await fs.writeFile(path.join(directory, name, file), text);
+  };
+  await write("root", {
+    "quixos.lock": lock(entry("build", "Library")),
+    "workspace.qx": `workspace Empty id "empty" revision "empty@1" commit "${commit}" {}`,
+  });
+  await write("Library", {
+    "quixos.lock": lock(entry("package", "Hidden")),
+    "types.ts": "export type Label = string;",
+  });
+  await write("Hidden", {
+    "quixos.lock": lock(entry("interface", "Data")),
+    "package.qx": 'import interface Data; package Hidden id "hidden" revision "hidden@1" {}',
+  });
+  await write("Data", { "quixos.lock": lock(), "interface.qx": 'interface Data id "data" revision "data@1" {}' });
+  const resolveResource = async (source: { repository: string }) => ({
+    directory: path.join(directory, new URL(source.repository).pathname.slice(1, -4)),
+  });
+  const compiled = await compileWorkspaceRepository({ rootDirectory: path.join(directory, "root"), resolveResource });
+  assert.equal(compiled.resources.length, 3);
+  assert.deepEqual(compiled.capabilityResources, []);
+  assert.deepEqual(compiled.workspace.packageImports, []);
+  assert.deepEqual(compiled.workspace.interfaceImports, []);
+  assert.deepEqual(bindingSchema(compiled).packages, []);
+  const library = await compileCapabilityResourceRepository({
+    rootDirectory: path.join(directory, "Library"),
+    kind: "build",
+    source: { resolver: "git", repository: "https://example.test/Library.git", commit },
+    resolveResource,
+  });
+  assert.deepEqual(library.resource, { kind: "build" });
+  assert.deepEqual(bindingSchema(library).interfaces, []);
+  await fs.writeFile(path.join(directory, "Library/quixos.lock"), lock(entry("build", "Library")));
+  await assert.rejects(
+    compileWorkspaceRepository({ rootDirectory: path.join(directory, "root"), resolveResource }),
+    /dependency cycle/,
+  );
+});
+
+test("build pins retain their kind through parsing and structural updates", () => {
+  const initial = lock(entry("build", "Library"));
+  const parsed = parseQuixosLockDocument(initial);
+  assert.ok(parsed.ok);
+  assert.equal(parsed.document.resources[0]!.kind, "build");
+  const edited = editStructure(initial, {
+    operation: "dependency",
+    kind: "build",
+    name: "Library",
+    source: { repository: "https://example.test/Library.git", commit: "b".repeat(40) },
+  });
+  const changed = parseQuixosLockDocument(edited);
+  assert.ok(changed.ok);
+  assert.equal(changed.document.resources[0]!.kind, "build");
+  assert.equal(changed.document.resources[0]!.source.commit, "b".repeat(40));
+});
diff --git a/test/emit-managed.ts b/test/emit-managed.ts
index f5de12c..59c39a7 100644
--- a/test/emit-managed.ts
+++ b/test/emit-managed.ts
@@ -198,3 +198,24 @@ package Owner id "package:owner" revision "package:owner@1" {
 }
 
 await import("./emit-controllers.js");
+
+// Standalone public builder roots must work without opting into the other modes.
+for (const kind of ["portable", "service"]) {
+  const pkg = compileCapabilityResourceSource(
+    `package Owner id "package:owner" revision "package:owner@1" {
+    function identity id "identity" : int32 -> record {pid:int32;child:int32;}
+    execution ${kind === "portable" ? "snapshot targets [browser,server]" : "remote"};
+  }`,
+    { source },
+  );
+  assert.ok(pkg.ok && pkg.resource.kind === "package", JSON.stringify(pkg.diagnostics));
+  const workspace = compileCapabilitySource(
+    `workspace Simple id "workspace:simple" revision "workspace:simple@1" commit "${source.commit}" {import package Owner;}`,
+    "workspace.qx",
+    { packages: new Map([["Owner", pkg.resource.revision]]) },
+  );
+  assert.ok(workspace.ok, JSON.stringify(workspace.diagnostics));
+  const directory = `dist/managed/standalone-${kind}`;
+  await mkdir(directory, { recursive: true });
+  await writeFile(`${directory}/execution-plan.json`, JSON.stringify(compileExecutionPlan(workspace.workspace)));
+}
diff --git a/test/pin-upgrades.test.ts b/test/pin-upgrades.test.ts
index f6e30ef..026a733 100644
--- a/test/pin-upgrades.test.ts
+++ b/test/pin-upgrades.test.ts
@@ -76,106 +76,112 @@ test(
   },
 );
 
-test("pin upgrades publish children before parent locks and resume without republishing completed nodes", async (context) => {
-  const workbench = await fs.mkdtemp(path.join(os.tmpdir(), "qx-upgrade-test-"));
-  context.after(() => fs.rm(workbench, { recursive: true, force: true }));
-  const from = "a".repeat(40),
-    to = "b".repeat(40),
-    framework = "c".repeat(40);
-  const sources = [
-    {
-      kind: "workspace" as const,
-      directory: "root",
-      source: { repository: "https://example.test/workspace.git", commit: from },
-    },
-    {
-      kind: "interface" as const,
-      directory: "resources/Named",
-      source: { repository: "https://example.test/named.git", commit: from },
-    },
-  ];
-  const lock = `quixos-lock version 1 { quixos source { repository "https://example.test/quixos.git"; commit "${framework}"; }`;
-  for (const node of sources) {
-    const directory = path.join(workbench, node.directory);
-    await fs.mkdir(directory, { recursive: true });
-    await execFile("git", ["-C", directory, "init"]);
-    await execFile("git", ["-C", directory, "remote", "add", "origin", node.source.repository]);
-    await fs.writeFile(path.join(directory, ".gitignore"), ".quixos/\n");
+for (const dependencyKind of ["interface", "build"] as const)
+  test(`${dependencyKind} pin upgrades publish children before parent locks and resume without republishing completed nodes`, async (context) => {
+    const workbench = await fs.mkdtemp(path.join(os.tmpdir(), "qx-upgrade-test-"));
+    context.after(() => fs.rm(workbench, { recursive: true, force: true }));
+    const from = "a".repeat(40),
+      to = "b".repeat(40),
+      framework = "c".repeat(40);
+    const sources = [
+      {
+        kind: "workspace" as const,
+        directory: "root",
+        source: { repository: "https://example.test/workspace.git", commit: from },
+      },
+      {
+        kind: dependencyKind,
+        directory: "resources/Named",
+        source: { repository: "https://example.test/named.git", commit: from },
+      },
+    ];
+    const lock = `quixos-lock version 1 { quixos source { repository "https://example.test/quixos.git"; commit "${framework}"; }`;
+    for (const node of sources) {
+      const directory = path.join(workbench, node.directory);
+      await fs.mkdir(directory, { recursive: true });
+      await execFile("git", ["-C", directory, "init"]);
+      await execFile("git", ["-C", directory, "remote", "add", "origin", node.source.repository]);
+      await fs.writeFile(path.join(directory, ".gitignore"), ".quixos/\n");
+      await fs.writeFile(
+        path.join(directory, "quixos.lock"),
+        lock +
+          (node.kind === "workspace"
+            ? ` ${dependencyKind} Named source { repository "${sources[1].source.repository}"; commit "${from}"; }`
+            : "") +
+          " }",
+      );
+    }
     await fs.writeFile(
-      path.join(directory, "quixos.lock"),
-      lock +
-        (node.kind === "workspace"
-          ? ` interface Named source { repository "${sources[1].source.repository}"; commit "${from}"; }`
-          : "") +
-        " }",
+      path.join(
+        workbench,
+        dependencyKind === "interface" ? "resources/Named/interface.qx" : "resources/Named/types.ts",
+      ),
+      dependencyKind === "interface"
+        ? 'interface Named id "interface:named" revision "interface:named@1" { value name id "member:name" : string { get id "op:get"; } }'
+        : "export type Name = string;",
     );
-  }
-  await fs.writeFile(
-    path.join(workbench, "resources/Named/interface.qx"),
-    'interface Named id "interface:named" revision "interface:named@1" { value name id "member:name" : string { get id "op:get"; } }',
-  );
-  await fs.writeFile(
-    path.join(workbench, "root/workspace.qx"),
-    `workspace W id "workspace:w" revision "workspace:w@1" commit "${from}" { import interface Named; atom A id "atom:a"; }`,
-  );
-  const snapshotMap = path.join(workbench, "snapshots.json");
-  await fs.writeFile(
-    snapshotMap,
-    JSON.stringify({
-      resources: [
-        {
-          kind: "interface",
-          repository: sources[1].source.repository,
-          commit: to,
-          directory: path.join(workbench, "resources/Named"),
-        },
-      ],
-    }),
-  );
-  const oldMap = process.env.QUIXOS_SNAPSHOT_MAP;
-  process.env.QUIXOS_SNAPSHOT_MAP = snapshotMap;
-  context.after(() => {
-    if (oldMap === undefined) delete process.env.QUIXOS_SNAPSHOT_MAP;
-    else process.env.QUIXOS_SNAPSHOT_MAP = oldMap;
+    await fs.writeFile(
+      path.join(workbench, "root/workspace.qx"),
+      `workspace W id "workspace:w" revision "workspace:w@1" commit "${from}" { ${dependencyKind === "interface" ? "import interface Named;" : ""} atom A id "atom:a"; }`,
+    );
+    const snapshotMap = path.join(workbench, "snapshots.json");
+    await fs.writeFile(
+      snapshotMap,
+      JSON.stringify({
+        resources: [
+          {
+            kind: dependencyKind,
+            repository: sources[1].source.repository,
+            commit: to,
+            directory: path.join(workbench, "resources/Named"),
+          },
+        ],
+      }),
+    );
+    const oldMap = process.env.QUIXOS_SNAPSHOT_MAP;
+    process.env.QUIXOS_SNAPSHOT_MAP = snapshotMap;
+    context.after(() => {
+      if (oldMap === undefined) delete process.env.QUIXOS_SNAPSHOT_MAP;
+      else process.env.QUIXOS_SNAPSHOT_MAP = oldMap;
+    });
+    const plan = await planPinUpgrades(workbench, { nodes: sources });
+    await fs.mkdir(path.join(workbench, ".quixos"), { recursive: true });
+    await fs.writeFile(
+      path.join(workbench, ".quixos/resource-graph.json"),
+      JSON.stringify({ resources: [{ ...sources[1], source: { resolver: "git", ...sources[1].source } }] }),
+    );
+    assert.deepEqual(
+      plan.nodes.map((node) => node.directory),
+      ["resources/Named", "root"],
+    );
+    let fail = true;
+    const published: string[] = [];
+    const effects: UpgradeEffects = {
+      check: async (node) => {
+        if (node.kind === "workspace" && fail) throw new Error("refactor required");
+      },
+      snapshot: async () => to,
+      publish: async (root) => {
+        published.push(path.relative(workbench, root));
+      },
+    };
+    await assert.rejects(() => applyPinUpgrades(plan, undefined, effects), /refactor required/);
+    assert.deepEqual(published, ["resources/Named"]);
+    assert.match(await fs.readFile(path.join(workbench, "root/quixos.lock"), "utf8"), new RegExp(to));
+    const id = (await fs.readdir(path.join(workbench, ".quixos/upgrades")))
+      .find((name) => name.endsWith(".json"))!
+      .slice(0, -5);
+    fail = false;
+    await fs.appendFile(path.join(workbench, "root/workspace.qx"), "\n// explicit refactor\n");
+    await assert.rejects(() => applyPinUpgrades(plan, id, effects), /accept-edits/);
+    const result = await applyPinUpgrades(plan, id, effects, { acceptEdits: true });
+    assert.equal(result.activated, false);
+    assert.deepEqual(published, ["resources/Named", "root"]);
+    const graph = JSON.parse(await fs.readFile(path.join(workbench, ".quixos/resource-graph.json"), "utf8"));
+    assert.equal(graph.resources.length, 1);
+    assert.equal(graph.resources[0].source.commit, to);
+    const next = await planPinUpgrades(workbench, {
+      nodes: [sources[0], { ...sources[1], source: graph.resources[0].source }],
+    });
+    assert.deepEqual(next.nodes.find((node) => node.kind === "workspace")!.dependencies, ["resources/Named"]);
   });
-  const plan = await planPinUpgrades(workbench, { nodes: sources });
-  await fs.mkdir(path.join(workbench, ".quixos"), { recursive: true });
-  await fs.writeFile(
-    path.join(workbench, ".quixos/resource-graph.json"),
-    JSON.stringify({ resources: [{ ...sources[1], source: { resolver: "git", ...sources[1].source } }] }),
-  );
-  assert.deepEqual(
-    plan.nodes.map((node) => node.directory),
-    ["resources/Named", "root"],
-  );
-  let fail = true;
-  const published: string[] = [];
-  const effects: UpgradeEffects = {
-    check: async (node) => {
-      if (node.kind === "workspace" && fail) throw new Error("refactor required");
-    },
-    snapshot: async () => to,
-    publish: async (root) => {
-      published.push(path.relative(workbench, root));
-    },
-  };
-  await assert.rejects(() => applyPinUpgrades(plan, undefined, effects), /refactor required/);
-  assert.deepEqual(published, ["resources/Named"]);
-  assert.match(await fs.readFile(path.join(workbench, "root/quixos.lock"), "utf8"), new RegExp(to));
-  const id = (await fs.readdir(path.join(workbench, ".quixos/upgrades")))
-    .find((name) => name.endsWith(".json"))!
-    .slice(0, -5);
-  fail = false;
-  await fs.appendFile(path.join(workbench, "root/workspace.qx"), "\n// explicit refactor\n");
-  await assert.rejects(() => applyPinUpgrades(plan, id, effects), /accept-edits/);
-  const result = await applyPinUpgrades(plan, id, effects, { acceptEdits: true });
-  assert.equal(result.activated, false);
-  assert.deepEqual(published, ["resources/Named", "root"]);
-  const graph = JSON.parse(await fs.readFile(path.join(workbench, ".quixos/resource-graph.json"), "utf8"));
-  assert.equal(graph.resources.length, 1);
-  assert.equal(graph.resources[0].source.commit, to);
-  const next = await planPinUpgrades(workbench, {
-    nodes: [sources[0], { ...sources[1], source: graph.resources[0].source }],
-  });
-  assert.deepEqual(next.nodes.find((node) => node.kind === "workspace")!.dependencies, ["resources/Named"]);
-});