Flatpak: build from source instead of repackaging debs (#389)

.github/workflows/flathub.yml

@@ -16,6 +16,21 @@ jobs:
       - name: Checkout app repo
         uses: actions/checkout@v4
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+
+      - name: Install source generators
+        run: |
+          pip install flatpak-node-generator tomlkit aiohttp
+          git clone --depth 1 https://github.com/flatpak/flatpak-builder-tools flatpak/flatpak-builder-tools
+
       - name: Run update-manifest.sh
         run: bash flatpak/update-manifest.sh "${{ github.event.release.tag_name }}"
 
@@ -29,6 +44,9 @@ jobs:
       - name: Copy updated files to Flathub repo
         run: |
           cp flatpak/app.yaak.Yaak.yml flathub-repo/
+          cp flatpak/app.yaak.Yaak.metainfo.xml flathub-repo/
+          cp flatpak/cargo-sources.json flathub-repo/
+          cp flatpak/node-sources.json flathub-repo/
           cp LICENSE flathub-repo/
           sed -i 's|path: \.\./LICENSE|path: LICENSE|' flathub-repo/app.yaak.Yaak.yml
 

.gitignore

@@ -48,3 +48,6 @@ crates-tauri/yaak-app/tauri.worktree.conf.json
 # Flatpak build artifacts
 flatpak-repo/
 .flatpak-builder/
+flatpak/flatpak-builder-tools/
+flatpak/cargo-sources.json
+flatpak/node-sources.json

crates/yaak-templates/build-wasm.cjs

@@ -0,0 +1,8 @@
+const { execSync } = require('node:child_process');
+
+if (process.env.SKIP_WASM_BUILD === '1') {
+  console.log('Skipping wasm-pack build (SKIP_WASM_BUILD=1)');
+  return;
+}
+
+execSync('wasm-pack build --target bundler', { stdio: 'inherit' });

crates/yaak-templates/package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "bootstrap": "npm run build",
     "build": "run-s build:*",
-    "build:pack": "wasm-pack build --target bundler",
+    "build:pack": "node build-wasm.cjs",
     "build:clean": "rimraf ./pkg/.gitignore"
   },
   "devDependencies": {

flatpak/app.yaak.Yaak.metainfo.xml

@@ -52,6 +52,5 @@
   </screenshots>
 
   <releases>
-    <release version="2026.1.2" date="2026-02-10" />
   </releases>
 </component>

flatpak/app.yaak.Yaak.yml

@@ -3,6 +3,11 @@ runtime: org.gnome.Platform
 runtime-version: "49"
 sdk: org.gnome.Sdk
 command: yaak-app
+
+sdk-extensions:
+  - org.freedesktop.Sdk.Extension.node22
+  - org.freedesktop.Sdk.Extension.rust-stable
+
 rename-desktop-file: yaak.desktop
 rename-icon: yaak-app
 
@@ -36,26 +41,135 @@ modules:
 
   - name: yaak
     buildsystem: simple
+    build-options:
+      append-path: /app/bin:/usr/lib/sdk/node22/bin:/usr/lib/sdk/rust-stable/bin
+      env:
+        CARGO_HOME: /run/build/yaak/cargo
+        XDG_CACHE_HOME: /run/build/yaak/flatpak-node/cache
+        npm_config_cache: /run/build/yaak/flatpak-node/npm-cache
+        npm_config_offline: "true"
+        npm_config_nodedir: /usr/lib/sdk/node22
+        NODE_OPTIONS: --max_old_space_size=4096
+
     build-commands:
-      - ar -x yaak.deb
+      # Vendor Node.js binary (sidecar for plugin runtime)
-      - tar -xf data.tar.gz
+      - mkdir -p crates-tauri/yaak-app/vendored/node
-      - mv usr/bin/* /app/bin
+      - install -Dm755 vendored-node/bin/node crates-tauri/yaak-app/vendored/node/yaaknode
-      - mv usr/lib/* /app/lib
+
-      - mv usr/share/* /app/share
+      # Vendor protoc binary and includes
+      - mkdir -p crates-tauri/yaak-app/vendored/protoc
+      - install -Dm755 protoc-bin/protoc crates-tauri/yaak-app/vendored/protoc/yaakprotoc
+      - mkdir -p crates-tauri/yaak-app/vendored/protoc/include && cp -r protoc-bin/google crates-tauri/yaak-app/vendored/protoc/include/google
+
+      # Patch lockfile: add resolved URLs for nested workspace deps that npm
+      # omits (see https://github.com/npm/cli/issues/4460)
+      - >-
+        node -e "const fs=require('fs');
+        const p='package-lock.json';
+        const d=JSON.parse(fs.readFileSync(p,'utf-8'));
+        for(const[n,info]of Object.entries(d.packages||{})){
+        if(!n||info.link||info.resolved||!n.includes('node_modules/')||!info.version)continue;
+        const pkg=n.split('node_modules/').pop();
+        const base=pkg.split('/').pop();
+        info.resolved='https://registry.npmjs.org/'+pkg+'/-/'+base+'-'+info.version+'.tgz';
+        }fs.writeFileSync(p,JSON.stringify(d,null,2));"
+
+      # Install npm dependencies offline
+      - npm ci --offline
+
+      # Pre-fetch Cargo dependencies offline
+      - cargo --offline fetch --manifest-path Cargo.toml
+
+      # Skip wasm-pack build (pre-built wasm is checked into the repo)
+      - >-
+        node -e "const fs=require('fs');
+        const p='crates/yaak-templates/package.json';
+        const d=JSON.parse(fs.readFileSync(p));
+        d.scripts['build:pack']='echo Skipping wasm-pack build';
+        fs.writeFileSync(p,JSON.stringify(d,null,2));"
+
+      # Build all workspace packages (frontend, plugins, wasm, plugin-runtime)
+      - npm run build
+
+      # Copy built plugins to vendored directory
+      - npm run vendor:vendor-plugins
+
+      # Build the Tauri app (cargo build directly to avoid inotify limits from tauri CLI)
+      - cargo build --offline --release -p yaak-app
+
+      # Install binary
+      - install -Dm755 target/release/yaak-app /app/bin/yaak-app
+
+      # Install icons from source
+      - install -Dm644 crates-tauri/yaak-app/icons/release/32x32.png /app/share/icons/hicolor/32x32/apps/yaak-app.png
+      - install -Dm644 crates-tauri/yaak-app/icons/release/64x64.png /app/share/icons/hicolor/64x64/apps/yaak-app.png
+      - install -Dm644 crates-tauri/yaak-app/icons/release/128x128.png /app/share/icons/hicolor/128x128/apps/yaak-app.png
+      - install -Dm644 crates-tauri/yaak-app/icons/release/icon.png /app/share/icons/hicolor/512x512/apps/yaak-app.png
+
+      # Install desktop file
+      - >-
+        printf '[Desktop Entry]\nCategories=Development;\nComment=The API client for modern developers\nExec=yaak-app\nIcon=yaak-app\nName=Yaak\nStartupWMClass=yaak\nTerminal=false\nType=Application\n'
+        > yaak.desktop
+      - install -Dm644 yaak.desktop /app/share/applications/yaak.desktop
+
+      # Install metainfo and license
+      - install -Dm644 app.yaak.Yaak.metainfo.xml /app/share/metainfo/app.yaak.Yaak.metainfo.xml
       - install -Dm644 LICENSE /app/share/licenses/app.yaak.Yaak/LICENSE
 
     sources:
-      - type: file
+      # Application source
-        dest-filename: yaak.deb
+      - type: git
-        url: https://github.com/mountain-loop/yaak/releases/download/v2026.1.2/yaak_2026.1.2_amd64.deb
+        url: https://github.com/mountain-loop/yaak.git
-        sha256: "c4236b5bcf391e579dc79b71c3b5c58f6f9bfc6c175fc70426d0ca85799beba5"
+        tag: v2026.1.2
+        commit: bd7e840a5700ddefb5ef1f22771cc5555000f777
+        x-checker-data:
+          type: git
+          tag-pattern: ^v(\d+\.\d+\.\d+)$
+
+      # Offline npm dependencies
+      - node-sources.json
+
+      # Offline Cargo dependencies
+      - cargo-sources.json
+
+      # Vendored Node.js binary (x86_64)
+      - type: archive
+        url: https://nodejs.org/download/release/v24.11.1/node-v24.11.1-linux-x64.tar.gz
+        sha256: 58a5ff5cc8f2200e458bea22e329d5c1994aa1b111d499ca46ec2411d58239ca
+        strip-components: 1
+        dest: vendored-node
         only-arches:
           - x86_64
-      - type: file
+
-        dest-filename: yaak.deb
+      # Vendored Node.js binary (aarch64)
-        url: https://github.com/mountain-loop/yaak/releases/download/v2026.1.2/yaak_2026.1.2_arm64.deb
+      - type: archive
-        sha256: "9ba9b7c9df56ffb9b801e40cb38685f1650cf7e2f9e85dad0ae3329f8e01ff6d"
+        url: https://nodejs.org/download/release/v24.11.1/node-v24.11.1-linux-arm64.tar.gz
+        sha256: 0dc93ec5c798b0d347f068db6d205d03dea9a71765e6a53922b682b91265d71f
+        strip-components: 1
+        dest: vendored-node
         only-arches:
           - aarch64
+
+      # Vendored protoc binary and includes (x86_64)
+      - type: archive
+        url: https://github.com/protocolbuffers/protobuf/releases/download/v33.1/protoc-33.1-linux-x86_64.zip
+        sha256: f3340e28a83d1c637d8bafdeed92b9f7db6a384c26bca880a6e5217b40a4328b
+        dest: protoc-bin
+        only-arches:
+          - x86_64
+
+      # Vendored protoc binary and includes (aarch64)
+      - type: archive
+        url: https://github.com/protocolbuffers/protobuf/releases/download/v33.1/protoc-33.1-linux-aarch_64.zip
+        sha256: 6018147740548e0e0f764408c87f4cd040e6e1c1203e13aeacaf811892b604f3
+        dest: protoc-bin
+        only-arches:
+          - aarch64
+
+      # License file
       - type: file
         path: ../LICENSE
+
+      # Metainfo file (not in tagged source yet)
+      - type: file
+        path: app.yaak.Yaak.metainfo.xml

flatpak/fix-lockfile.mjs

@@ -0,0 +1,73 @@
+#!/usr/bin/env node
+
+// Adds missing `resolved` and `integrity` fields to npm package-lock.json.
+//
+// npm sometimes omits these fields for nested dependencies inside workspace
+// packages. This breaks offline installs and tools like flatpak-node-generator
+// that need explicit tarball URLs for every package.
+//
+// Based on https://github.com/grant-dennison/npm-package-lock-add-resolved
+// (MIT License, Copyright (c) 2024 Grant Dennison)
+
+import { readFile, writeFile } from "node:fs/promises";
+import { get } from "node:https";
+
+const lockfilePath = process.argv[2] || "package-lock.json";
+
+function fetchJson(url) {
+  return new Promise((resolve, reject) => {
+    get(url, (res) => {
+      let data = "";
+      res.on("data", (chunk) => {
+        data += chunk;
+      });
+      res.on("end", () => {
+        if (res.statusCode === 200) {
+          resolve(JSON.parse(data));
+        } else {
+          reject(`${url} returned ${res.statusCode} ${res.statusMessage}`);
+        }
+      });
+      res.on("error", reject);
+    }).on("error", reject);
+  });
+}
+
+async function fillResolved(name, p) {
+  const version = p.version.replace(/^.*@/, "");
+  console.log(`Retrieving metadata for ${name}@${version}`);
+  const metadataUrl = `https://registry.npmjs.com/${name}/${version}`;
+  const metadata = await fetchJson(metadataUrl);
+  p.resolved = metadata.dist.tarball;
+  p.integrity = metadata.dist.integrity;
+}
+
+let changesMade = false;
+
+async function fillAllResolved(packages) {
+  for (const packagePath in packages) {
+    if (packagePath === "") continue;
+    const p = packages[packagePath];
+    if (!p.inBundle && !p.bundled && (!p.resolved || !p.integrity)) {
+      const packageName =
+        p.name ||
+        /^npm:(.+?)@.+$/.exec(p.version)?.[1] ||
+        packagePath.replace(/^.*node_modules\/(?=.+?$)/, "");
+      await fillResolved(packageName, p);
+      changesMade = true;
+    }
+  }
+}
+
+const oldContents = await readFile(lockfilePath, "utf-8");
+const packageLock = JSON.parse(oldContents);
+
+await fillAllResolved(packageLock.packages ?? []);
+
+if (changesMade) {
+  const newContents = JSON.stringify(packageLock, null, 2) + "\n";
+  await writeFile(lockfilePath, newContents);
+  console.log(`Updated ${lockfilePath}`);
+} else {
+  console.log("No changes needed.");
+}

flatpak/generate-sources.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+#
+# Generate offline dependency source files for Flatpak builds.
+#
+# Prerequisites:
+#   pip install flatpak-node-generator tomlkit aiohttp
+#   Clone https://github.com/flatpak/flatpak-builder-tools (for cargo generator)
+#
+# Usage:
+#   ./flatpak/generate-sources.sh
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+# Generate cargo-sources.json
+python3 "$SCRIPT_DIR/flatpak-builder-tools/cargo/flatpak-cargo-generator.py" \
+  -o "$SCRIPT_DIR/cargo-sources.json" "$REPO_ROOT/Cargo.lock"
+
+# Generate node-sources.json from a patched copy of the lockfile.
+# npm omits resolved/integrity for some workspace deps, and
+# flatpak-node-generator can't handle workspace link entries.
+TMPDIR=$(mktemp -d)
+trap 'rm -rf "$TMPDIR"' EXIT
+
+cp "$REPO_ROOT/package-lock.json" "$TMPDIR/package-lock.json"
+cp "$REPO_ROOT/package.json" "$TMPDIR/package.json"
+
+node "$SCRIPT_DIR/fix-lockfile.mjs" "$TMPDIR/package-lock.json"
+
+node -e "
+  const fs = require('fs');
+  const p = process.argv[1];
+  const d = JSON.parse(fs.readFileSync(p, 'utf-8'));
+  for (const [name, info] of Object.entries(d.packages || {})) {
+    if (name && (info.link || !info.resolved)) delete d.packages[name];
+  }
+  fs.writeFileSync(p, JSON.stringify(d, null, 2));
+" "$TMPDIR/package-lock.json"
+
+flatpak-node-generator --no-requests-cache \
+  -o "$SCRIPT_DIR/node-sources.json" npm "$TMPDIR/package-lock.json"

flatpak/update-manifest.sh

@@ -1,19 +1,19 @@
 #!/usr/bin/env bash
 #
-# Update the Flatpak manifest with URLs and SHA256 hashes for a given release.
+# Update the Flatpak manifest for a new release.
 #
 # Usage:
 #   ./flatpak/update-manifest.sh v2026.2.0
 #
 # This script:
-#   1. Downloads the x86_64 and aarch64 .deb files from the GitHub release
+#   1. Updates the git tag and commit in the manifest
-#   2. Computes their SHA256 checksums
+#   2. Regenerates cargo-sources.json and node-sources.json from the tagged lockfiles
-#   3. Updates the manifest YAML with the correct URLs and hashes
+#   3. Adds a new <release> entry to the metainfo
-#   4. Updates the metainfo.xml with a new <release> entry
 
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 MANIFEST="$SCRIPT_DIR/app.yaak.Yaak.yml"
 METAINFO="$SCRIPT_DIR/app.yaak.Yaak.metainfo.xml"
 
@@ -26,57 +26,64 @@ fi
 VERSION_TAG="$1"
 VERSION="${VERSION_TAG#v}"
 
-# Only allow stable releases (skip beta, alpha, rc, etc.)
 if [[ "$VERSION" == *-* ]]; then
     echo "Skipping pre-release version '$VERSION_TAG' (only stable releases are published to Flathub)"
     exit 0
 fi
 
 REPO="mountain-loop/yaak"
-BASE_URL="https://github.com/$REPO/releases/download/$VERSION_TAG"
+COMMIT=$(git ls-remote "https://github.com/$REPO.git" "refs/tags/$VERSION_TAG" | cut -f1)
 
-DEB_AMD64="yaak_${VERSION}_amd64.deb"
+if [ -z "$COMMIT" ]; then
-DEB_ARM64="yaak_${VERSION}_arm64.deb"
+    echo "Error: Could not resolve commit for tag $VERSION_TAG"
+    exit 1
+fi
 
+echo "Tag: $VERSION_TAG"
+echo "Commit: $COMMIT"
+
+# Update git tag and commit in the manifest
+sed -i "s|tag: v.*|tag: $VERSION_TAG|" "$MANIFEST"
+sed -i "s|commit: .*|commit: $COMMIT|" "$MANIFEST"
+echo "Updated manifest tag and commit."
+
+# Regenerate offline dependency sources from the tagged lockfiles
 TMPDIR=$(mktemp -d)
 trap 'rm -rf "$TMPDIR"' EXIT
 
-echo "Downloading $DEB_AMD64..."
+echo "Fetching lockfiles from $VERSION_TAG..."
-curl -fSL "$BASE_URL/$DEB_AMD64" -o "$TMPDIR/$DEB_AMD64"
+curl -fsSL "https://raw.githubusercontent.com/$REPO/$VERSION_TAG/Cargo.lock" -o "$TMPDIR/Cargo.lock"
-SHA_AMD64=$(sha256sum "$TMPDIR/$DEB_AMD64" | cut -d' ' -f1)
+curl -fsSL "https://raw.githubusercontent.com/$REPO/$VERSION_TAG/package-lock.json" -o "$TMPDIR/package-lock.json"
-echo "  SHA256: $SHA_AMD64"
+curl -fsSL "https://raw.githubusercontent.com/$REPO/$VERSION_TAG/package.json" -o "$TMPDIR/package.json"
 
-echo "Downloading $DEB_ARM64..."
+echo "Generating cargo-sources.json..."
-curl -fSL "$BASE_URL/$DEB_ARM64" -o "$TMPDIR/$DEB_ARM64"
+python3 "$SCRIPT_DIR/flatpak-builder-tools/cargo/flatpak-cargo-generator.py" \
-SHA_ARM64=$(sha256sum "$TMPDIR/$DEB_ARM64" | cut -d' ' -f1)
+  -o "$SCRIPT_DIR/cargo-sources.json" "$TMPDIR/Cargo.lock"
-echo "  SHA256: $SHA_ARM64"
 
-echo ""
+echo "Generating node-sources.json..."
-echo "Updating manifest: $MANIFEST"
+node "$SCRIPT_DIR/fix-lockfile.mjs" "$TMPDIR/package-lock.json"
 
-# Update URLs by matching the arch-specific deb filename
+node -e "
-sed -i "s|url: .*amd64\.deb|url: $BASE_URL/$DEB_AMD64|" "$MANIFEST"
+  const fs = require('fs');
-sed -i "s|url: .*arm64\.deb|url: $BASE_URL/$DEB_ARM64|" "$MANIFEST"
+  const p = process.argv[1];
+  const d = JSON.parse(fs.readFileSync(p, 'utf-8'));
+  for (const [name, info] of Object.entries(d.packages || {})) {
+    if (name && (info.link || !info.resolved)) delete d.packages[name];
+  }
+  fs.writeFileSync(p, JSON.stringify(d, null, 2));
+" "$TMPDIR/package-lock.json"
 
-# Update SHA256 hashes by finding the current ones and replacing
+flatpak-node-generator --no-requests-cache \
-OLD_SHA_AMD64=$(grep -A2 "amd64\.deb" "$MANIFEST" | grep sha256 | sed 's/.*"\(.*\)"/\1/')
+  -o "$SCRIPT_DIR/node-sources.json" npm "$TMPDIR/package-lock.json"
-OLD_SHA_ARM64=$(grep -A2 "arm64\.deb" "$MANIFEST" | grep sha256 | sed 's/.*"\(.*\)"/\1/')
-
-sed -i "s|$OLD_SHA_AMD64|$SHA_AMD64|" "$MANIFEST"
-sed -i "s|$OLD_SHA_ARM64|$SHA_ARM64|" "$MANIFEST"
-
-echo "  Manifest updated."
-
-echo "Updating metainfo: $METAINFO"
 
+# Update metainfo with new release
 TODAY=$(date +%Y-%m-%d)
-
-# Insert new release entry after <releases>
 sed -i "s|  <releases>|  <releases>\n    <release version=\"$VERSION\" date=\"$TODAY\" />|" "$METAINFO"
-
+echo "Updated metainfo with release $VERSION."
-echo "  Metainfo updated."
 
 echo ""
 echo "Done! Review the changes:"
 echo "  $MANIFEST"
 echo "  $METAINFO"
+echo "  $SCRIPT_DIR/cargo-sources.json"
+echo "  $SCRIPT_DIR/node-sources.json"

package-lock.json

@@ -16062,18 +16062,6 @@
       "name": "@yaak/auth-oauth2",
       "version": "0.1.0"
     },
-    "plugins/faker": {
-      "name": "@yaak/faker",
-      "version": "1.1.1",
-      "extraneous": true,
-      "dependencies": {
-        "@faker-js/faker": "^10.1.0"
-      },
-      "devDependencies": {
-        "@types/node": "^25.0.3",
-        "typescript": "^5.9.3"
-      }
-    },
     "plugins/filter-jsonpath": {
       "name": "@yaak/filter-jsonpath",
       "version": "0.1.0",

scripts/vendor-node.cjs

@@ -1,4 +1,6 @@
 const path = require('node:path');
+const crypto = require('node:crypto');
+const fs = require('node:fs');
 const decompress = require('decompress');
 const Downloader = require('nodejs-file-downloader');
 const { rmSync, cpSync, mkdirSync, existsSync } = require('node:fs');
@@ -41,6 +43,15 @@ const DST_BIN_MAP = {
   [WIN_ARM]: 'yaaknode.exe',
 };
 
+const SHA256_MAP = {
+  [MAC_ARM]: 'b05aa3a66efe680023f930bd5af3fdbbd542794da5644ca2ad711d68cbd4dc35',
+  [MAC_X64]: '096081b6d6fcdd3f5ba0f5f1d44a47e83037ad2e78eada26671c252fe64dd111',
+  [LNX_ARM]: '0dc93ec5c798b0d347f068db6d205d03dea9a71765e6a53922b682b91265d71f',
+  [LNX_X64]: '58a5ff5cc8f2200e458bea22e329d5c1994aa1b111d499ca46ec2411d58239ca',
+  [WIN_X64]: '5355ae6d7c49eddcfde7d34ac3486820600a831bf81dc3bdca5c8db6a9bb0e76',
+  [WIN_ARM]: 'ce9ee4e547ebdff355beb48e309b166c24df6be0291c9eaf103ce15f3de9e5b4',
+};
+
 const key = `${process.platform}_${process.env.YAAK_TARGET_ARCH ?? process.arch}`;
 
 const destDir = path.join(__dirname, `..`, 'crates-tauri', 'yaak-app', 'vendored', 'node');
@@ -68,6 +79,15 @@ rmSync(tmpDir, { recursive: true, force: true });
     timeout: 1000 * 60 * 2,
   }).download();
 
+  // Verify SHA256
+  const expectedHash = SHA256_MAP[key];
+  const fileBuffer = fs.readFileSync(filePath);
+  const actualHash = crypto.createHash('sha256').update(fileBuffer).digest('hex');
+  if (actualHash !== expectedHash) {
+    throw new Error(`SHA256 mismatch for ${path.basename(filePath)}\n  expected: ${expectedHash}\n  actual:   ${actualHash}`);
+  }
+  console.log('SHA256 verified:', actualHash);
+
   // Decompress to the same directory
   await decompress(filePath, tmpDir, {});
 

scripts/vendor-protoc.cjs

@@ -1,3 +1,5 @@
+const crypto = require('node:crypto');
+const fs = require('node:fs');
 const decompress = require('decompress');
 const Downloader = require('nodejs-file-downloader');
 const path = require('node:path');
@@ -41,6 +43,15 @@ const DST_BIN_MAP = {
   [WIN_ARM]: 'yaakprotoc.exe',
 };
 
+const SHA256_MAP = {
+  [MAC_ARM]: 'db7e66ff7f9080614d0f5505a6b0ac488cf89a15621b6a361672d1332ec2e14e',
+  [MAC_X64]: 'e20b5f930e886da85e7402776a4959efb1ed60c57e72794bcade765e67abaa82',
+  [LNX_ARM]: '6018147740548e0e0f764408c87f4cd040e6e1c1203e13aeacaf811892b604f3',
+  [LNX_X64]: 'f3340e28a83d1c637d8bafdeed92b9f7db6a384c26bca880a6e5217b40a4328b',
+  [WIN_X64]: 'd7a207fb6eec0e4b1b6613be3b7d11905375b6fd1147a071116eb8e9f24ac53b',
+  [WIN_ARM]: 'd7a207fb6eec0e4b1b6613be3b7d11905375b6fd1147a071116eb8e9f24ac53b',
+};
+
 const dstDir = path.join(__dirname, `..`, 'crates-tauri', 'yaak-app', 'vendored', 'protoc');
 const key = `${process.platform}_${process.env.YAAK_TARGET_ARCH ?? process.arch}`;
 console.log(`Vendoring protoc ${VERSION} for ${key}`);
@@ -63,6 +74,15 @@ mkdirSync(dstDir, { recursive: true });
   // Download GitHub release artifact
   const { filePath } = await new Downloader({ url, directory: tmpDir }).download();
 
+  // Verify SHA256
+  const expectedHash = SHA256_MAP[key];
+  const fileBuffer = fs.readFileSync(filePath);
+  const actualHash = crypto.createHash('sha256').update(fileBuffer).digest('hex');
+  if (actualHash !== expectedHash) {
+    throw new Error(`SHA256 mismatch for ${path.basename(filePath)}\n  expected: ${expectedHash}\n  actual:   ${actualHash}`);
+  }
+  console.log('SHA256 verified:', actualHash);
+
   // Decompress to the same directory
   await decompress(filePath, tmpDir, {});