diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 80e1e0a01..86a3b34bd 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -482,6 +482,116 @@ jobs:
         if: always()
         run: rm -f /root/repo_pass /root/.ssh/id_ed25519
 
+  # -------------------------------------------------------------------------
+  # libva-v4l2-request-fourier (aarch64 only) — VA-API V4L2-stateless backend,
+  # multiplanar fork. Successor to libva-v4l2-request-ohm-gl-fix (never
+  # published). Tracks the campaign fork's git tip directly; pinned commit
+  # is the libva-multiplanar iter8 close.
+  # -------------------------------------------------------------------------
+  libva-v4l2-request-fourier-aarch64:
+    needs: ffmpeg-v4l2-request-aarch64
+    runs-on: arch-aarch64
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: bootstrap runner (idempotent)
+        run: |
+          set -e
+          retry() { for i in 1 2 3; do "$@" && return 0; rc=$?; echo "retry $i (exit=$rc)" >&2; sleep $((i*5)); done; return 1; }
+          retry pacman -Syu --noconfirm --needed base-devel git rsync gnupg openssh sudo
+
+      - name: import signing key
+        env:
+          PRIV: ${{ secrets.MARFRIT_REPO_PRIVATE_KEY }}
+          PASS: ${{ secrets.MARFRIT_REPO_PASSPHRASE }}
+        run: |
+          set -e
+          rm -rf /root/.gnupg /root/repo_pass
+          mkdir -m700 -p /root/.gnupg
+          printf '%s' "$PASS" > /root/repo_pass
+          chmod 600 /root/repo_pass
+          printf '%s\n' "$PRIV" | gpg --batch --import
+          echo "92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C:6:" | gpg --import-ownertrust
+
+      - name: install deploy ssh key
+        env:
+          KEY: ${{ secrets.MARFRIT_REPO_DEPLOY_KEY }}
+        run: |
+          mkdir -m700 -p /root/.ssh
+          printf '%s\n' "$KEY" > /root/.ssh/id_ed25519
+          chmod 600 /root/.ssh/id_ed25519
+          ssh-keyscan -t ed25519 nc.reauktion.de > /root/.ssh/known_hosts 2>/dev/null
+
+      - name: makepkg libva-v4l2-request-fourier
+        run: |
+          set -e
+          rm -rf /tmp/build-libva-v4l2
+          cp -r arch/libva-v4l2-request-fourier /tmp/build-libva-v4l2
+          chown -R builder:builder /tmp/build-libva-v4l2
+          cd /tmp/build-libva-v4l2
+          sudo -u builder -H env MAKEFLAGS="-j$(nproc)" \
+            makepkg --nocheck --noconfirm --syncdeps --cleanbuild
+          ls -la *.pkg.tar.* | grep -v "\.sig$"
+
+      - name: sign libva-v4l2-request-fourier
+        run: |
+          set -e
+          cd /tmp/build-libva-v4l2
+          for f in *.pkg.tar.xz *.pkg.tar.zst *.pkg.tar.gz; do
+            [ -f "$f" ] || continue
+            gpg --batch --pinentry-mode loopback --passphrase-file /root/repo_pass \
+                --detach-sign --yes -u 92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C "$f"
+          done
+
+      - name: update aarch64 repo db
+        run: |
+          set -e
+          mkdir -p /tmp/arch-stage-libva
+          cd /tmp/arch-stage-libva
+          rm -f *
+          for f in marfrit.db.tar.gz marfrit.db.tar.gz.sig marfrit.files.tar.gz marfrit.files.tar.gz.sig; do
+            curl -sSLf "https://packages.reauktion.de/arch/aarch64/$f" -o "$f" || rm -f "$f"
+          done
+          for ext in xz zst gz; do
+            ls /tmp/build-libva-v4l2/*.pkg.tar.$ext 2>/dev/null && \
+              mv /tmp/build-libva-v4l2/*.pkg.tar.$ext /tmp/build-libva-v4l2/*.pkg.tar.$ext.sig .
+          done || true
+          export GNUPGHOME=/root/.gnupg
+          printf 'pinentry-mode loopback\npassphrase-file /root/repo_pass\n' > /root/.gnupg/gpg.conf
+          printf 'allow-loopback-pinentry\n' > /root/.gnupg/gpg-agent.conf
+          gpg-connect-agent reloadagent /bye
+          pkgs=()
+          for ext in xz zst gz; do
+            for f in *.pkg.tar.$ext; do [ -f "$f" ] && pkgs+=("$f"); done
+          done
+          if [ -f marfrit.db.tar.gz ]; then
+            for f in "${pkgs[@]}"; do
+              name=$(echo "$f" | sed -E 's/-[0-9].*//')
+              repo-remove --sign --key 92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C \
+                marfrit.db.tar.gz "$name" 2>/dev/null || true
+            done
+          fi
+          repo-add --new --sign --key 92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C \
+            --verify marfrit.db.tar.gz "${pkgs[@]}"
+          ln -sf marfrit.db.tar.gz        marfrit.db
+          ln -sf marfrit.files.tar.gz     marfrit.files
+          ln -sf marfrit.db.tar.gz.sig    marfrit.db.sig
+          rm -f marfrit.files.sig
+
+      - name: publish to aarch64
+        run: |
+          set -e
+          retry() { for i in 1 2 3; do "$@" && return 0; rc=$?; echo "retry $i (exit=$rc)" >&2; sleep $((i*5)); done; return 1; }
+          cd /tmp/arch-stage-libva
+          retry rsync -avL --copy-unsafe-links \
+            -e 'ssh -i /root/.ssh/id_ed25519' \
+            ./ mfritsche@nc.reauktion.de:arch/aarch64/
+
+      - name: wipe secrets
+        if: always()
+        run: rm -f /root/repo_pass /root/.ssh/id_ed25519
+
   # -------------------------------------------------------------------------
   # claude-his-agent Debian (Architecture: all) — same dpkg-deb pattern as
   # lmcp-debian; publishes to bookworm + trixie via hertz reprepro.
diff --git a/arch/libva-v4l2-request-fourier/PKGBUILD b/arch/libva-v4l2-request-fourier/PKGBUILD
new file mode 100644
index 000000000..6af827603
--- /dev/null
+++ b/arch/libva-v4l2-request-fourier/PKGBUILD
@@ -0,0 +1,69 @@
+# Maintainer: Markus Fritsche <fritsche.markus@gmail.com>
+#
+# libva-v4l2-request-fourier — VA-API backend for V4L2 stateless decoders,
+# multiplanar fork. Successor to the predecessor experimental package
+# libva-v4l2-request-ohm-gl-fix (tarball + 18-patch stack); this package
+# tracks the campaign fork's git history directly, so iteration sweeps
+# (DEBUG removal, follow-up bugfixes) land in a clean linear log.
+#
+# Campaign: ~/src/libva-multiplanar/ (eight closed iterations as of
+# 2026-05-06; iter8 close is the production tip pinned below).
+# Fork repo: https://git.reauktion.de/marfrit/libva-v4l2-request-fourier
+# Bootlin upstream: https://github.com/bootlin/libva-v4l2-request
+#
+# Build target: fermi LXC actrunner-aarch64-hertz via marfrit-packages
+# Gitea Actions (path=arch/libva-v4l2-request-fourier triggers the
+# libva-v4l2-request-fourier-aarch64 job — wire up alongside the existing
+# ffmpeg-v4l2-request-git job in .gitea/workflows/build.yml).
+# Alternative: boltzmann via his subagent + marfrit-publish.
+
+pkgname=libva-v4l2-request-fourier
+_upstreampkg=libva-v4l2-request
+
+# Pin the fork tip. 65969da = "iter8 Phase 4: tests/run_perf_binding_cell.sh"
+# — last commit on master before fresnel-fourier work started layering
+# MPEG-2 rewrites on top of it (2026-05-08). The libva-multiplanar campaign
+# closed iter8 at this commit; promote to a later pin only after a future
+# iteration closes cleanly.
+_commit=65969da3ee901442a8ca4e1f7f9697d5461d368a
+
+# Project version from meson.build (1.0.0) + commit count + short sha,
+# matching the ffmpeg-v4l2-request-fourier convention.
+pkgver=1.0.0.r280.65969da
+pkgrel=1
+pkgdesc="VA-API backend for V4L2 stateless decoders (multiplanar fork — fourier umbrella)"
+arch=('aarch64')
+url="https://git.reauktion.de/marfrit/libva-v4l2-request-fourier"
+license=('LGPL2.1' 'MIT')
+depends=('libva' 'libdrm' 'systemd-libs')
+makedepends=('meson' 'ninja' 'pkgconf' 'git')
+provides=("${_upstreampkg}=${pkgver}" 'libva-driver')
+conflicts=("${_upstreampkg}" 'libva-v4l2-request-ohm-gl-fix')
+replaces=("${_upstreampkg}" 'libva-v4l2-request-ohm-gl-fix')
+
+source=("git+https://git.reauktion.de/marfrit/libva-v4l2-request-fourier.git#commit=${_commit}")
+sha256sums=('SKIP')
+
+pkgver() {
+    cd "${srcdir}/${_upstreampkg}-fourier"
+    printf '1.0.0.r%s.%s' \
+        "$(git rev-list --count HEAD)" \
+        "$(git rev-parse --short=7 HEAD)"
+}
+
+build() {
+    cd "${srcdir}/${_upstreampkg}-fourier"
+    # meson_options.txt only exposes 'kernel_headers' — leave it empty to
+    # use system /usr/include kernel UAPI headers. No per-codec toggles.
+    arch-meson build --buildtype=release
+    meson compile -C build
+}
+
+package() {
+    cd "${srcdir}/${_upstreampkg}-fourier"
+    meson install -C build --destdir "${pkgdir}"
+
+    install -Dm644 COPYING       "${pkgdir}/usr/share/licenses/${pkgname}/COPYING"
+    install -Dm644 COPYING.LGPL  "${pkgdir}/usr/share/licenses/${pkgname}/COPYING.LGPL"
+    install -Dm644 COPYING.MIT   "${pkgdir}/usr/share/licenses/${pkgname}/COPYING.MIT"
+}