write the funny ci action

.github/workflows/build-katsu.yml

@@ -0,0 +1,79 @@
+name: Build ISO images (with Katsu)
+
+env:
+  DNF_PKGS: |
+    git
+    xorriso
+    rpm
+    limine
+    systemd
+    btrfs-progs
+    e2fsprogs
+    xfsprogs
+    dosfstools
+    grub2
+    parted
+    util-linux-core
+    systemd-container
+    grub2-efi
+    uboot-images-armv8
+    uboot-tools
+    rustc
+    qemu-user-static-aarch64
+    qemu-user-binfmt
+    qemu-kvm
+    qemu-img
+    cargo
+    systemd-devel
+    mkpasswd
+    clang-devel
+    moby-engine
+    squashfs-tools
+    erofs-utils
+    grub2-tools
+    grub2-tools-extra
+    isomd5sum
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        variant:
+          - flagship
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/terrapkg/builder:f38
+      # Pass /dev from host to container
+      # Very hacky, but it works
+      # Microsoft/Github, if you're reading this,
+      # I'm sorry.
+      options: --privileged -v /dev:/dev
+
+    steps:
+      - name: Install dependencies
+        run: |
+          dnf install -y $DNF_PKGS
+          dnf clean all
+      - name: Clone Katsu
+        uses: actions/checkout@v3
+        with:
+          repository: FyraLabs/katsu
+          ref: main
+          path: katsu
+      - name: Build Katsu
+        run: |
+          pushd katsu
+          cargo build --release
+          cp target/release/katsu /usr/bin/katsu
+          popd
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Build ISO
+        run: |
+          pushd katsu
+          katsu --output=iso ${{ matrix.variant }}-live.yaml