diff --git a/.github/workflows/android-apk.yml b/.github/workflows/android-apk.yml
index 4864c9084..aa1a35261 100644
--- a/.github/workflows/android-apk.yml
+++ b/.github/workflows/android-apk.yml
@@ -492,6 +492,19 @@ jobs:
             "$out_dir/OpenLess_${version}_x86.apk" \
             "$out_dir/OpenLess_${version}_x86_64.apk"
 
+      - name: Stage direct download aliases
+        if: needs.plan.outputs.is_tag_release == 'true'
+        working-directory: openless-all/app
+        env:
+          OPENLESS_DOWNLOAD_SOURCE_DIR: ${{ steps.stage.outputs.out_dir }}
+          OPENLESS_DOWNLOAD_OUTPUT_DIR: ${{ steps.stage.outputs.out_dir }}
+        run: |
+          set -euo pipefail
+          for arch in aarch64 armv7 i686 x86_64; do
+            OPENLESS_DOWNLOAD_TARGET=android OPENLESS_DOWNLOAD_ARCH="$arch" \
+              node scripts/stage-release-download-aliases.mjs
+          done
+
       - name: Write Android updater manifests
         working-directory: openless-all/app
         env:
@@ -515,7 +528,7 @@ jobs:
           out_dir="${{ steps.stage.outputs.out_dir }}"
           {
             echo "${{ steps.stage.outputs.release_files }}"
-            for f in "$out_dir"/*.apk.sig "$out_dir"/latest-android-*.json; do
+            for f in "$out_dir"/*.apk.sig "$out_dir"/latest-android-*.json "$out_dir"/OpenLess_android_*.apk; do
               [ -e "$f" ] && echo "$f"
             done
           } > "$RUNNER_TEMP/android-release-files.txt"
diff --git a/.github/workflows/check-linux-egui.yml b/.github/workflows/check-linux-egui.yml
index 2c7f8833e..219ab51aa 100644
--- a/.github/workflows/check-linux-egui.yml
+++ b/.github/workflows/check-linux-egui.yml
@@ -158,6 +158,22 @@ jobs:
           ( cd "$OUTPUT" && sha256sum ./*.deb ./*.rpm > SHA256SUMS )
           bash scripts/verify-linux-egui-packages.sh
 
+      - name: Stage direct download aliases
+        if: inputs.scope != 'none' && (github.event_name != 'push' || env.RELEASE_TAG != '')
+        shell: bash
+        run: |
+          set -euo pipefail
+          output=openless-all/app/target/linux-egui-packages
+          alias_dir="$RUNNER_TEMP/openless-linux-egui-direct-download"
+          rm -rf "$alias_dir"
+          mkdir -p "$alias_dir"
+          debs=("$output"/OpenLess-Linux-egui-*.deb)
+          rpms=("$output"/OpenLess-Linux-egui-*.rpm)
+          test "${#debs[@]}" -eq 1
+          test "${#rpms[@]}" -eq 1
+          cp "${debs[0]}" "$alias_dir/OpenLess_linux_x86_64.deb"
+          cp "${rpms[0]}" "$alias_dir/OpenLess_linux_x86_64.rpm"
+
       - name: Upload verified Linux packages as workflow artifacts
         # Push builds keep the release path warm but do not publish artifacts;
         # the tag release and pull request runs are the consumers.
@@ -167,3 +183,11 @@ jobs:
           name: openless-linux-egui-x86_64
           path: openless-all/app/target/linux-egui-packages/*
           if-no-files-found: error
+
+      - name: Upload direct download aliases
+        if: inputs.scope != 'none' && (github.event_name != 'push' || env.RELEASE_TAG != '')
+        uses: actions/upload-artifact@v7
+        with:
+          name: openless-linux-egui-direct-download
+          path: ${{ runner.temp }}/openless-linux-egui-direct-download/*
+          if-no-files-found: error
diff --git a/.github/workflows/release-tauri.yml b/.github/workflows/release-tauri.yml
index 45761ea8b..e6236728e 100644
--- a/.github/workflows/release-tauri.yml
+++ b/.github/workflows/release-tauri.yml
@@ -535,6 +535,16 @@ jobs:
             fi
           done
 
+      - name: Stage direct download alias
+        if: startsWith(github.ref, 'refs/tags/v') && endsWith(github.ref, '-tauri')
+        working-directory: openless-all/app
+        env:
+          OPENLESS_DOWNLOAD_TARGET: ${{ matrix.updater-target }}
+          OPENLESS_DOWNLOAD_ARCH: ${{ matrix.updater-arch }}
+          OPENLESS_DOWNLOAD_SOURCE_DIR: ${{ matrix.updater-target == 'darwin' && 'src-tauri/target/release/bundle/dmg' || 'src-tauri/target/release/bundle/nsis' }}
+          OPENLESS_DOWNLOAD_OUTPUT_DIR: src-tauri/target/release/downloads
+        run: node scripts/stage-release-download-aliases.mjs
+
       - name: Upload macOS artifacts
         if: startsWith(matrix.platform, 'macos')
         uses: actions/upload-artifact@v4
@@ -648,3 +658,4 @@ jobs:
             openless-all/app/src-tauri/target/release/bundle/msi/*.msi
             openless-all/app/src-tauri/target/release/bundle/msi/*.msi.sig
             openless-all/app/src-tauri/target/release/bundle/latest-*.json
+            openless-all/app/src-tauri/target/release/downloads/*
diff --git a/.github/workflows/sync-homebrew-cask.yml b/.github/workflows/sync-homebrew-cask.yml
index 78b687c81..ef2050ebf 100644
--- a/.github/workflows/sync-homebrew-cask.yml
+++ b/.github/workflows/sync-homebrew-cask.yml
@@ -72,12 +72,12 @@ jobs:
           mkdir -p "$RUNNER_TEMP/dmg"
           gh release download "$TAG" --repo "$GITHUB_REPOSITORY" \
             --dir "$RUNNER_TEMP/dmg" \
-            --pattern '*aarch64.dmg' --pattern '*_x64.dmg'
+            --pattern 'OpenLess_[0-9]*_aarch64.dmg' --pattern 'OpenLess_[0-9]*_x64.dmg'
 
           # Tags omit +build metadata; filenames and the cask must preserve it.
           version="$(node openless-all/app/scripts/resolve-release-cask-version.mjs "$TAG" "$RUNNER_TEMP/dmg")"
-          arm_sha="$(sha256sum "$RUNNER_TEMP"/dmg/*aarch64.dmg | cut -d' ' -f1)"
-          intel_sha="$(sha256sum "$RUNNER_TEMP"/dmg/*_x64.dmg | cut -d' ' -f1)"
+          arm_sha="$(sha256sum "$RUNNER_TEMP/dmg/OpenLess_${version}_aarch64.dmg" | cut -d' ' -f1)"
+          intel_sha="$(sha256sum "$RUNNER_TEMP/dmg/OpenLess_${version}_x64.dmg" | cut -d' ' -f1)"
 
           {
             echo "version=$version"
diff --git a/RELEASING.md b/RELEASING.md
index 49eca050a..e3ce1d3ad 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -55,6 +55,22 @@ from the last `-N` suffix (for example `2.0.0-Beta.2-79` → `2.0.0-Beta.2-80`).
 Both local packaging and the shared CI/tag build use this explicit revision; never drop
 it or derive it from the Tauri tag, whose SemVer remains `2.0.0-Beta.2`.
 
+## Direct download aliases
+
+The release workflows also publish stable, version-independent asset names for the official website:
+
+- macOS Apple Silicon: `OpenLess_macos_aarch64.dmg`
+- macOS Intel: `OpenLess_macos_x86_64.dmg`
+- Windows x64: `OpenLess_windows_x86_64-setup.exe`
+- Android: `OpenLess_android_<abi>.apk` (one each for `arm64-v8a`, `armeabi-v7a`, `x86`, and `x86_64`)
+- Linux: `OpenLess_linux_x86_64.deb` and `OpenLess_linux_x86_64.rpm`
+
+Stable website links use `https://github.com/Open-Less/openless/releases/latest/download/<asset-name>`.
+Beta links must use the release tag because `latest` excludes pre-releases:
+`https://github.com/Open-Less/openless/releases/download/<tag>/<asset-name>`.
+
+The Tauri and Android workflows attach their aliases automatically. Linux remains administrator-attached after product acceptance, so the administrator must attach the two files from the `openless-linux-egui-direct-download` Actions artifact to the accepted Release as well as the versioned packages. Do not replace the versioned assets; the aliases are an additional website-facing contract.
+
 Under the [2026-09-06 2.0 requirements](docs/2.0-requirements.md), Windows and macOS must fully retain their respective Tauri 1.x features. The egui team owns Linux Host/UI work and Linux product acceptance. Linux application gaps do not block the Windows/macOS delivery, but shared Core defects do. Linux packages must not be attached before their own product acceptance. Existing Android builds do not expand this scope into a new full-support commitment.
 
 ## Version-sync gate
diff --git a/openless-all/app/package.json b/openless-all/app/package.json
index 8d97c795e..b47124320 100644
--- a/openless-all/app/package.json
+++ b/openless-all/app/package.json
@@ -30,6 +30,7 @@
     "check:windows-ui-config": "node scripts/windows-ui-config.test.mjs",
     "check:pin-persistence-security": "node scripts/pin-persistence-security-contract.test.mjs",
     "check:android-updater-pubkey": "node scripts/check-android-updater-pubkey.mjs",
+    "check:release-download-aliases": "node scripts/stage-release-download-aliases.test.mjs",
     "check:android-shizuku-scaffolding": "node scripts/merge-android-shizuku-manifest.test.mjs && node scripts/patch-android-shizuku-deps.test.mjs",
     "format": "prettier --write \"src/**/*.{ts,tsx,css}\" \"android/frontend/**/*.{ts,tsx}\" \"scripts/**/*.{js,mjs,sh}\" \"*.{ts,json,html,sh}\" \"assets/remote-input/*.{js,css,html}\"",
     "format:check": "prettier --check \"src/**/*.{ts,tsx,css}\" \"android/frontend/**/*.{ts,tsx}\" \"scripts/**/*.{js,mjs,sh}\" \"*.{ts,json,html,sh}\" \"assets/remote-input/*.{js,css,html}\"",
diff --git a/openless-all/app/scripts/android-apk-workflow-contract.test.mjs b/openless-all/app/scripts/android-apk-workflow-contract.test.mjs
index 945746b91..bd4de23c6 100644
--- a/openless-all/app/scripts/android-apk-workflow-contract.test.mjs
+++ b/openless-all/app/scripts/android-apk-workflow-contract.test.mjs
@@ -148,6 +148,52 @@ assert.match(workflow, /CARGO_PROFILE_RELEASE_LTO/);
 assert.match(workflow, /first ABI may compile twice|android-studio-script/);
 assert.match(workflow, /publish-android-release/);
 assert.match(workflow, /download-artifact/);
+assert.match(workflow, /stage-release-download-aliases\.mjs/);
+assert.match(workflow, /OpenLess_android_\*\.apk/);
 assert.match(workflow, /Rust cache/);
 
+// Exercise the upload list so overlapping globs cannot upload the same asset twice.
+const releaseTmp = mkdtempSync(join(tmpdir(), 'openless-apk-assets-'));
+try {
+  const directory = releaseTmp.replace(/\\/g, '/');
+  const version = '2.0.0-Beta.3+build.20260925';
+  const originals = [];
+  const names = ANDROID_ABI_MATRIX.flatMap(({ abi, gradleAbi }) => {
+    const apk = `OpenLess_${version}_${gradleAbi}.apk`;
+    const alias = `OpenLess_android_${gradleAbi}.apk`;
+    originals.push(`${directory}/${apk}`);
+    return [
+      apk,
+      `${apk}.sig`,
+      alias,
+      `${alias}.sig`,
+      `latest-android-${abi}.json`,
+      `latest-android-${abi}-mirror.json`,
+    ];
+  });
+  for (const name of names) writeFileSync(join(releaseTmp, name), 'fixture');
+  const step = parsed.jobs['publish-android-release'].steps.find(
+    (step) => step.id === 'release_assets',
+  );
+  const result = spawnSync('bash', ['-s'], {
+    input: step.run
+      .replaceAll('${{ steps.stage.outputs.out_dir }}', '$RUNNER_TEMP')
+      .replaceAll('${{ steps.stage.outputs.release_files }}', '$RELEASE_FILES'),
+    env: {
+      ...process.env,
+      RUNNER_TEMP: directory,
+      GITHUB_OUTPUT: `${directory}/output`,
+      RELEASE_FILES: originals.join('\n'),
+    },
+    encoding: 'utf8',
+  });
+  assert.equal(result.status, 0, result.stderr);
+  const assets = readFileSync(join(releaseTmp, 'android-release-files.txt'), 'utf8')
+    .trim()
+    .split(/\r?\n/);
+  assert.deepEqual(assets.sort(), names.map((name) => `${directory}/${name}`).sort());
+} finally {
+  rmSync(releaseTmp, { recursive: true, force: true });
+}
+
 console.log('android-apk-workflow-contract checks passed');
diff --git a/openless-all/app/scripts/linux-egui-release-contract.test.mjs b/openless-all/app/scripts/linux-egui-release-contract.test.mjs
index ada8157ea..d948ec7a2 100644
--- a/openless-all/app/scripts/linux-egui-release-contract.test.mjs
+++ b/openless-all/app/scripts/linux-egui-release-contract.test.mjs
@@ -53,6 +53,9 @@ assert.match(check, /cargo build --locked --release -p openless-linux-egui/);
 assert.match(check, /bash scripts\/package-linux-egui\.sh/);
 assert.match(check, /sha256sum \.\/\*\.deb \.\/\*\.rpm > SHA256SUMS/);
 assert.match(check, /bash scripts\/verify-linux-egui-packages\.sh/);
+assert.match(check, /OpenLess_linux_x86_64\.deb/);
+assert.match(check, /OpenLess_linux_x86_64\.rpm/);
+assert.match(check, /openless-linux-egui-direct-download/);
 assert.match(gate, /cargo tree --locked/);
 assert.match(gate, /tauri\|wry\|webkit2gtk/);
 assert.doesNotMatch(ci + check, /libgtk-3|webkit2gtk|libwebkit/);
diff --git a/openless-all/app/scripts/resolve-release-cask-version.test.mjs b/openless-all/app/scripts/resolve-release-cask-version.test.mjs
index 89ce497d2..c97465512 100644
--- a/openless-all/app/scripts/resolve-release-cask-version.test.mjs
+++ b/openless-all/app/scripts/resolve-release-cask-version.test.mjs
@@ -1,5 +1,6 @@
 import assert from 'node:assert/strict';
 import { readFileSync } from 'node:fs';
+import { spawnSync } from 'node:child_process';
 import { resolveReleaseCaskVersion } from './resolve-release-cask-version.mjs';
 
 const files = (version) => [`OpenLess_${version}_aarch64.dmg`, `OpenLess_${version}_x64.dmg`];
@@ -54,4 +55,29 @@ assert.match(
   workflow,
   /version="\$\(node openless-all\/app\/scripts\/resolve-release-cask-version\.mjs "\$TAG" "\$RUNNER_TEMP\/dmg"\)"/,
 );
+const downloadPatterns = [...workflow.matchAll(/--pattern '([^']+)'/g)].map((match) => match[1]);
+assert.equal(downloadPatterns.length, 2);
+for (const version of ['1.3.18', '2.0.0+build.20261015']) {
+  const selected = spawnSync(
+    'bash',
+    [
+      '-c',
+      'arm=$1; intel=$2; shift 2; for name; do if [[ "$name" == $arm || "$name" == $intel ]]; then printf "%s\\n" "$name"; fi; done',
+      'download-patterns',
+      ...downloadPatterns,
+      ...files(version),
+      'OpenLess_macos_aarch64.dmg',
+      'OpenLess_macos_x86_64.dmg',
+    ],
+    { encoding: 'utf8' },
+  );
+  assert.equal(selected.status, 0, selected.stderr);
+  const downloaded = selected.stdout.trim().split(/\r?\n/);
+  assert.deepEqual(downloaded, files(version), 'Homebrew must only download versioned DMGs');
+  assert.equal(resolveReleaseCaskVersion(`v${version.split('+')[0]}-tauri`, downloaded), version);
+  const checksumNames = [...workflow.matchAll(/sha256sum "\$RUNNER_TEMP\/dmg\/([^"]+)"/g)].map(
+    (match) => match[1].replaceAll('${version}', version),
+  );
+  assert.deepEqual(checksumNames, files(version), 'Homebrew must checksum the resolved version');
+}
 console.log('resolve-release-cask-version.test.mjs passed');
diff --git a/openless-all/app/scripts/stage-release-download-aliases.mjs b/openless-all/app/scripts/stage-release-download-aliases.mjs
new file mode 100644
index 000000000..1746e658a
--- /dev/null
+++ b/openless-all/app/scripts/stage-release-download-aliases.mjs
@@ -0,0 +1,118 @@
+#!/usr/bin/env node
+import { copyFileSync, existsSync, mkdirSync, readdirSync } from 'node:fs';
+import { basename, join, resolve } from 'node:path';
+import process from 'node:process';
+
+const TARGETS = new Set(['darwin', 'windows', 'android']);
+const ANDROID_ABIS = {
+  aarch64: 'arm64-v8a',
+  armv7: 'armeabi-v7a',
+  i686: 'x86',
+  x86_64: 'x86_64',
+};
+const DARWIN_BUNDLE_ARCHES = {
+  aarch64: 'aarch64',
+  x86_64: 'x64',
+};
+
+function readOption(name) {
+  const index = process.argv.indexOf(`--${name}`);
+  if (index !== -1) {
+    const value = process.argv[index + 1];
+    if (!value || value.startsWith('--')) {
+      throw new Error(`Missing value for --${name}`);
+    }
+    return value;
+  }
+  return process.env[`OPENLESS_DOWNLOAD_${name.replaceAll('-', '_').toUpperCase()}`];
+}
+
+const target = readOption('target');
+const arch = readOption('arch');
+const sourceDirValue = readOption('source-dir');
+const outputDirValue = readOption('output-dir');
+
+if (!TARGETS.has(target)) {
+  throw new Error(`Invalid --target: ${target || '(missing)'}`);
+}
+if (!arch) {
+  throw new Error('--arch is required');
+}
+if (!sourceDirValue || !outputDirValue) {
+  throw new Error('--source-dir and --output-dir are required');
+}
+
+const sourceDir = resolve(sourceDirValue);
+const outputDir = resolve(outputDirValue);
+
+function chooseSingle(predicate, description) {
+  if (!existsSync(sourceDir)) {
+    throw new Error(`Source directory does not exist: ${sourceDir}`);
+  }
+  const matches = readdirSync(sourceDir)
+    .filter((name) => predicate(name))
+    .sort();
+  if (matches.length !== 1) {
+    throw new Error(
+      `Expected exactly one ${description} in ${sourceDir}, found ${matches.length}: ${matches.join(', ') || '(none)'}`,
+    );
+  }
+  return matches[0];
+}
+
+function sourceAndAlias() {
+  if (target === 'darwin') {
+    if (!['aarch64', 'x86_64'].includes(arch)) {
+      throw new Error(`Invalid macOS arch: ${arch}`);
+    }
+    const bundleArch = DARWIN_BUNDLE_ARCHES[arch];
+    const sourceName = chooseSingle(
+      (name) => name.endsWith(`_${bundleArch}.dmg`) && !name.startsWith('OpenLess_macos_'),
+      `macOS ${arch} DMG`,
+    );
+    return {
+      sourceName,
+      aliasName: `OpenLess_macos_${arch}.dmg`,
+    };
+  }
+
+  if (target === 'windows') {
+    if (arch !== 'x86_64') {
+      throw new Error(`Invalid Windows arch: ${arch}`);
+    }
+    const sourceName = chooseSingle(
+      (name) => name.endsWith('_x64-setup.exe') && !name.startsWith('OpenLess_windows_'),
+      'Windows x64 NSIS installer',
+    );
+    return {
+      sourceName,
+      aliasName: 'OpenLess_windows_x86_64-setup.exe',
+    };
+  }
+
+  const abi = ANDROID_ABIS[arch];
+  if (!abi) {
+    throw new Error(`Invalid Android updater arch: ${arch}`);
+  }
+  const sourceName = chooseSingle(
+    (name) => name.endsWith(`_${abi}.apk`) && !name.startsWith('OpenLess_android_'),
+    `Android ${abi} APK`,
+  );
+  return {
+    sourceName,
+    aliasName: `OpenLess_android_${abi}.apk`,
+  };
+}
+
+const { sourceName, aliasName } = sourceAndAlias();
+mkdirSync(outputDir, { recursive: true });
+const sourcePath = join(sourceDir, sourceName);
+const aliasPath = join(outputDir, aliasName);
+copyFileSync(sourcePath, aliasPath);
+
+const signaturePath = `${sourcePath}.sig`;
+if (existsSync(signaturePath)) {
+  copyFileSync(signaturePath, `${aliasPath}.sig`);
+}
+
+console.log(`Staged ${basename(sourcePath)} as ${basename(aliasPath)}`);
diff --git a/openless-all/app/scripts/stage-release-download-aliases.test.mjs b/openless-all/app/scripts/stage-release-download-aliases.test.mjs
new file mode 100644
index 000000000..233f203df
--- /dev/null
+++ b/openless-all/app/scripts/stage-release-download-aliases.test.mjs
@@ -0,0 +1,109 @@
+import assert from 'node:assert/strict';
+import { mkdirSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { spawnSync } from 'node:child_process';
+import { fileURLToPath } from 'node:url';
+
+const scriptPath = fileURLToPath(new URL('./stage-release-download-aliases.mjs', import.meta.url));
+
+function run(options) {
+  const result = spawnSync(process.execPath, [scriptPath], {
+    cwd: fileURLToPath(new URL('..', import.meta.url)),
+    env: {
+      ...process.env,
+      OPENLESS_DOWNLOAD_TARGET: options.target,
+      OPENLESS_DOWNLOAD_ARCH: options.arch,
+      OPENLESS_DOWNLOAD_SOURCE_DIR: options.sourceDir,
+      OPENLESS_DOWNLOAD_OUTPUT_DIR: options.outputDir,
+    },
+    encoding: 'utf8',
+  });
+  return result;
+}
+
+const root = mkdtempSync(join(tmpdir(), 'openless-download-aliases-'));
+try {
+  const darwinSource = join(root, 'darwin-source');
+  const darwinOutput = join(root, 'darwin-output');
+  mkdirSync(darwinSource);
+  writeFileSync(join(darwinSource, 'OpenLess_2.0.0_aarch64.dmg'), 'arm64 dmg');
+  let result = run({
+    target: 'darwin',
+    arch: 'aarch64',
+    sourceDir: darwinSource,
+    outputDir: darwinOutput,
+  });
+  assert.equal(result.status, 0, result.stderr);
+  assert.equal(readFileSync(join(darwinOutput, 'OpenLess_macos_aarch64.dmg'), 'utf8'), 'arm64 dmg');
+
+  const darwinIntelSource = join(root, 'darwin-intel-source');
+  const darwinIntelOutput = join(root, 'darwin-intel-output');
+  mkdirSync(darwinIntelSource);
+  writeFileSync(join(darwinIntelSource, 'OpenLess_2.0.0_x64.dmg'), 'x64 dmg');
+  result = run({
+    target: 'darwin',
+    arch: 'x86_64',
+    sourceDir: darwinIntelSource,
+    outputDir: darwinIntelOutput,
+  });
+  assert.equal(result.status, 0, result.stderr);
+  assert.equal(
+    readFileSync(join(darwinIntelOutput, 'OpenLess_macos_x86_64.dmg'), 'utf8'),
+    'x64 dmg',
+  );
+
+  const windowsSource = join(root, 'windows-source');
+  const windowsOutput = join(root, 'windows-output');
+  mkdirSync(windowsSource);
+  writeFileSync(join(windowsSource, 'OpenLess_2.0.0_x64-setup.exe'), 'windows exe');
+  writeFileSync(join(windowsSource, 'OpenLess_2.0.0_x64-setup.exe.sig'), 'signature');
+  result = run({
+    target: 'windows',
+    arch: 'x86_64',
+    sourceDir: windowsSource,
+    outputDir: windowsOutput,
+  });
+  assert.equal(result.status, 0, result.stderr);
+  assert.equal(
+    readFileSync(join(windowsOutput, 'OpenLess_windows_x86_64-setup.exe'), 'utf8'),
+    'windows exe',
+  );
+  assert.equal(
+    readFileSync(join(windowsOutput, 'OpenLess_windows_x86_64-setup.exe.sig'), 'utf8'),
+    'signature',
+  );
+
+  const androidSource = join(root, 'android-source');
+  const androidOutput = join(root, 'android-output');
+  mkdirSync(androidSource);
+  writeFileSync(join(androidSource, 'OpenLess_2.0.0_arm64-v8a.apk'), 'android apk');
+  result = run({
+    target: 'android',
+    arch: 'aarch64',
+    sourceDir: androidSource,
+    outputDir: androidOutput,
+  });
+  assert.equal(result.status, 0, result.stderr);
+  assert.equal(
+    readFileSync(join(androidOutput, 'OpenLess_android_arm64-v8a.apk'), 'utf8'),
+    'android apk',
+  );
+
+  const duplicateSource = join(root, 'duplicate-source');
+  mkdirSync(duplicateSource);
+  writeFileSync(join(duplicateSource, 'OpenLess_1_aarch64.dmg'), 'one');
+  writeFileSync(join(duplicateSource, 'OpenLess_2_aarch64.dmg'), 'two');
+  result = run({
+    target: 'darwin',
+    arch: 'aarch64',
+    sourceDir: duplicateSource,
+    outputDir: join(root, 'duplicate-output'),
+  });
+  assert.notEqual(result.status, 0);
+  assert.match(result.stderr, /Expected exactly one macOS aarch64 DMG/);
+} finally {
+  rmSync(root, { recursive: true, force: true });
+}
+
+console.log('stage-release-download-aliases checks passed');