diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 00000000..5b9f6fd5
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,130 @@
+name: Build Horizon OC Zeus
+
+on:
+  push:
+    branches: [ develop, main, master ]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    # Minimal devkitA64 container, apparently dkp-toolchain isn't needed?
+    container:
+      image: devkitpro/devkita64:latest
+
+    steps:
+      - name: Checkout repository and submodules # why are we doing this? I don't think we use submodules but memory doesn't serve so let's keep it
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+
+      # -------------------------------------------------
+      # Fix PATH for devkitA64 and devkitARM
+      # -------------------------------------------------
+      - name: Set devkitPro PATH
+        run: |
+          export DEVKITPRO=/opt/devkitpro
+          export DEVKITA64=$DEVKITPRO/devkitA64
+          export DEVKITARM=$DEVKITPRO/devkitARM
+          export PATH=$DEVKITA64/bin:$DEVKITARM/bin:$PATH
+          aarch64-none-elf-gcc --version
+          arm-none-eabi-gcc --version
+        shell: bash
+
+      - name: 
+        run: apt install ccache -y
+        shell: bash
+
+      # -------------------------------------------------
+      # Get short commit SHA
+      # -------------------------------------------------
+      - name: Set commit SHA
+        id: vars
+        run: echo "SHORT_SHA=$(echo $GITHUB_SHA | cut -c1-7)" >> $GITHUB_ENV
+
+      # -------------------------------------------------
+      # Clone Atmosphère
+      # -------------------------------------------------
+      - name: Clone Atmosphere
+        run: git clone https://github.com/Atmosphere-NX/Atmosphere.git atmosphere
+
+      # -------------------------------------------------
+      # Clone Horizon OC (develop branch) kinda suspicious for now, shouldn't it just already be cloned on the actions runner?
+      # -------------------------------------------------
+      #- name: Clone Horizon OC
+      #  run: git clone -b develop --single-branch https://github.com/Horizon-OC/Horizon-OC.git horizon-oc
+
+      # -------------------------------------------------
+      # Prepare build folder
+      # -------------------------------------------------
+      - name: Prepare build folder
+        run: |
+          mkdir -p build
+          cp -r atmosphere/ build/
+
+      # -------------------------------------------------
+      # Override loader source
+      # -------------------------------------------------
+      - name: Override ldr_process_creation.cpp
+        run: |
+          cp -f Source/Atmosphere/stratosphere/loader/source/ldr_process_creation.cpp \
+            build/stratosphere/loader/source/ldr_process_creation.cpp
+
+      # -------------------------------------------------
+      # Build Horizon OC Zeus (trying ccache, directly invoking make instead, hacky)
+      # -------------------------------------------------
+      #- name: Build Horizon OC Zeus
+      #  working-directory: horizon-oc
+      #  run: |
+      #    chmod +x build.sh
+      #    ./build.sh
+      - name: Cache ccache
+        uses: actions/cache@v4
+        with:
+          path: /root/.cache/ccache
+          key: ccache-${{ runner.os }}-devkitpro-${{ hashFiles('**/Makefile', '**/*.mk') }}
+          restore-keys: |
+            ccache-${{ runner.os }}-devkitpro-
+
+      - name: Configure ccache
+        run: |
+          export CCACHE_DIR=/root/.cache/ccache
+          echo "CCACHE_DIR=/root/.cache/ccache" >> $GITHUB_ENV
+          ccache --set-config=max_size=10G
+          ccache --set-config=compiler_check=content
+          ccache --zero-stats
+
+      - name: Build (try)
+        working-directory: build/stratosphere/loader
+        run: | # I forgot what dkp uses
+          export CC="ccache aarch64-none-elf-gcc"
+          export CXX="ccache aarch64-none-elf-g++"
+          ccache make -j$(($(nproc) * 2)) CXX="ccache aarch64-none-elf-g++" CC="ccache aarch64-none-elf-gcc
+          hactool -t kip1 out/nintendo_nx_arm64_armv8a/release/loader.kip --uncompress=hoc.kip
+          cp build/stratosphere/loader/hoc.kip dist/atmosphere/kips/hoc.kip
+         
+      - name: ccache stats
+        run: ccache --show-stats
+
+
+      # -------------------------------------------------
+      # Package dist folder as ZIP with commit SHA
+      # -------------------------------------------------
+      - name: Package dist
+        # working-directory: horizon-oc
+        run: |
+          ZIP_NAME="horizon-oc-zeus-dist-${SHORT_SHA}.zip"
+          zip -r "$ZIP_NAME" dist
+          echo "ZIP_NAME=$ZIP_NAME" >> $GITHUB_ENV
+
+      # -------------------------------------------------
+      # Upload ZIP artifact
+      # -------------------------------------------------
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: horizon-oc-zeus-dist
+          path: horizon-oc/${{ env.ZIP_NAME }}