diff --git a/.github/workflows/coq-archlinux.yml b/.github/workflows/coq-archlinux.yml
new file mode 100644
index 0000000000..0a3f3abc32
--- /dev/null
+++ b/.github/workflows/coq-archlinux.yml
@@ -0,0 +1,184 @@
+name: CI (Coq, Arch Linux)
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+  release:
+    types: [published]
+  schedule:
+    - cron: '0 0 1 * *'
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    container: archlinux
+    name: archlinux
+
+    concurrency:
+      group: ${{ github.workflow }}-archlinux-${{ github.head_ref || github.run_id }}
+      cancel-in-progress: true
+
+    steps:
+    - name: Install system dependencies
+      run: |
+        pacman --noconfirm -Syu base-devel git make python3 which jq ghc ghc-static time diffutils coq ocaml-zarith --needed
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+    - name: work around coq issue 15663
+      run: |
+        ln -s /usr/lib/coq /usr/lib/ocaml/coq
+        ln -s /usr/lib/coq-core /usr/lib/ocaml/coq-core
+        ln -s /usr/lib/coqide-server /usr/lib/ocaml/coqide-server
+    - name: Work around https://github.com/actions/checkout/issues/766
+      run: git config --global --add safe.directory "*"
+    - name: chroot build params
+      run: etc/ci/describe-system-config.sh
+    - name: make deps
+      run: etc/ci/github-actions-make.sh -j2 deps
+    - name: all-except-generated-and-js-of-ocaml
+      run: etc/ci/github-actions-make.sh -j2 all-except-generated-and-js-of-ocaml
+    - name: generated-files
+      run: etc/ci/github-actions-make.sh -j2 generated-files
+    - run: tar -czvf generated-files.tgz fiat-*/
+      if: ${{ failure() }}
+    - name: upload generated files
+      uses: actions/upload-artifact@v4
+      with:
+        name: generated-files-archlinux
+        path: generated-files.tgz
+      if: ${{ failure() }}
+    - name: install-standalone-unified-ocaml
+      run: etc/ci/github-actions-make.sh install-standalone-unified-ocaml BINDIR=dist
+    #- name: standalone-js-of-ocaml
+    #  run: etc/ci/github-actions-make.sh -j2 standalone-js-of-ocaml
+    #- name: install-standalone-js-of-ocaml
+    #  run: etc/ci/github-actions-make.sh install-standalone-js-of-ocaml
+    - name: upload standalone files
+      uses: actions/upload-artifact@v4
+      with:
+        name: standalone-archlinux
+        path: dist/fiat_crypto
+    #- name: upload standalone js files
+    #  uses: actions/upload-artifact@v4
+    #  with:
+    #    name: standalone-html-archlinux
+    #    path: fiat-html
+    - name: upload OCaml files
+      uses: actions/upload-artifact@v4
+      with:
+        name: ExtractionOCaml-archlinux
+        path: src/ExtractionOCaml
+      if: always ()
+    #- name: upload js_of_ocaml files
+    #  uses: actions/upload-artifact@v4
+    #  with:
+    #    name: ExtractionJsOfOCaml-archlinux
+    #    path: src/ExtractionJsOfOCaml
+    #  if: always ()
+    - name: standalone-haskell
+      run: etc/ci/github-actions-make.sh -j1 standalone-haskell GHCFLAGS='+RTS -M7G -RTS'
+    - name: upload Haskell files
+      uses: actions/upload-artifact@v4
+      with:
+        name: ExtractionHaskell-archlinux
+        path: src/ExtractionHaskell
+      if: always ()
+    - name: only-test-amd64-files-lite
+      run: etc/ci/github-actions-make.sh -j2 only-test-amd64-files-lite SLOWEST_FIRST=1
+    - name: install
+      run: etc/ci/github-actions-make.sh EXTERNAL_DEPENDENCIES=1 SKIP_COQSCRIPTS_INCLUDE=1 install install-standalone-ocaml
+    - name: install-without-bedrock2
+      run: etc/ci/github-actions-make.sh EXTERNAL_DEPENDENCIES=1 SKIP_BEDROCK2=1 install-without-bedrock2 install-standalone-ocaml
+    - name: install-dev
+      run: etc/ci/github-actions-make.sh EXTERNAL_REWRITER=1 EXTERNAL_COQPRIME=1 install install-standalone-ocaml
+    - name: display timing info
+      run: cat time-of-build-pretty.log
+    - name: display per-line timing info
+      run: etc/ci/github-actions-display-per-line-timing.sh
+
+  test-standalone:
+    runs-on: ubuntu-latest
+    container: archlinux
+    needs: build
+    steps:
+    - name: Install system dependencies
+      run: |
+        pacman --noconfirm -Syu git --needed
+    - uses: actions/checkout@v4
+    - name: Download standalone archlinux
+      uses: actions/download-artifact@v4
+      with:
+        name: standalone-archlinux
+        path: dist/
+    - name: List files
+      run: find dist
+    - run: chmod +x dist/fiat_crypto
+    - name: Test files (container)
+      run: |
+        echo "::group::file fiat_crypto"
+        file dist/fiat_crypto
+        echo "::endgroup::"
+        echo "::group::ldd fiat_crypto"
+        ldd dist/fiat_crypto
+        echo "::endgroup::"
+        etc/ci/test-run-fiat-crypto.sh dist/fiat_crypto
+
+  publish-standalone-dry-run:
+    runs-on: ubuntu-latest
+    needs: build
+#    permissions:
+#      contents: write  # IMPORTANT: mandatory for making GitHub Releases
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0 # Fetch all history for all tags and branches
+        tags: true     # Fetch all tags as well, `fetch-depth: 0` might be sufficient depending on Git version
+    - name: Download standalone archlinux
+      uses: actions/download-artifact@v4
+      with:
+        name: standalone-archlinux
+        path: dist/
+    - name: List files
+      run: find dist
+    - name: Rename files
+      run: |
+        echo "::group::find arch"
+        arch="$(etc/ci/find-arch.sh dist/fiat_crypto "unknown")"
+        tag="$(git describe --tags HEAD)"
+        fname="Fiat-Cryptography_${tag}_Linux_archlinux_${arch}"
+        echo "$fname"
+        mv dist/fiat_crypto "dist/$fname"
+        find dist
+#    - name: Upload artifacts to GitHub Release
+#      env:
+#        GITHUB_TOKEN: ${{ github.token }}
+#      # Upload to GitHub Release using the `gh` CLI.
+#      # `dist/` contains the built packages
+#      run: >-
+#        gh release upload
+#        '${{ github.ref_name }}' dist/**
+#        --repo '${{ github.repository }}'
+#      if: ${{ startsWith(github.ref, 'refs/tags/') && github.event_name == 'release' }}
+
+  archlinux-check-all:
+    runs-on: ubuntu-latest
+    needs: [build, test-standalone, publish-standalone-dry-run]
+    if: always()
+    steps:
+    - run: echo 'build passed'
+      if: ${{ needs.build.result == 'success' }}
+    - run: echo 'test-standalone passed'
+      if: ${{ needs.test-standalone.result == 'success' }}
+    - run: echo 'publish-standalone-dry-run passed'
+      if: ${{ needs.publish-standalone-dry-run.result == 'success' }}
+    - run: echo 'build failed' && false
+      if: ${{ needs.build.result != 'success' }}
+    - run: echo 'test-standalone failed' && false
+      if: ${{ needs.test-standalone.result != 'success' }}
+    - run: echo 'publish-standalone-dry-run failed' && false
+      if: ${{ needs.publish-standalone-dry-run.result != 'success' }}
diff --git a/etc/ci/describe-system-config.sh b/etc/ci/describe-system-config.sh
index d295330569..bc93c92097 100755
--- a/etc/ci/describe-system-config.sh
+++ b/etc/ci/describe-system-config.sh
@@ -33,6 +33,7 @@ group cat /proc/cpuinfo
 group cat /proc/meminfo
 group apk info
 group dpkg -l
+group pacman -Qs
 group ghc --version
 group ghc -v
 group gcc --version