diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000000..87ee563883
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,56 @@
+name: Build
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    container: ghcr.io/hackern64/hackerbuild:main
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        include:
+          - name: "Debug, No F3DEX3"
+            args: RELEASE=0 CPP_DEFINES=-DENABLE_F3DEX3=0
+          - name: "Debug, F3DEX3"
+            args: RELEASE=0 CPP_DEFINES=-DENABLE_F3DEX3=1
+          - name: "Release, No F3DEX3"
+            args: RELEASE=1 CPP_DEFINES=-DENABLE_F3DEX3=0
+          - name: "Release, F3DEX3"
+            args: RELEASE=1 CPP_DEFINES=-DENABLE_F3DEX3=1
+    defaults:
+      run:
+        shell: bash
+    
+    name: ${{ matrix.name }}
+
+    steps:
+    # Checkout the repository (shallow clone)
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        submodules: recursive
+
+    # Set Git config
+    - name: Git config
+      run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
+
+    # Copy the original files to the workspace
+    - name: Prepare
+      run: cp -R /HackerOoT/baseroms .
+
+    # Install the required pip packages
+    - name: Setup Python
+      run: |
+        python3 -m pip install --user colorama ansiwrap attrs watchdog python-Levenshtein "mapfile-parser>=1.2.1,<2.0.0" "rabbitizer>=1.0.0,<2.0.0"
+        python3 -m pip install --upgrade attrs pycparser
+
+    # Setup the project
+    - name: Setup
+      run: make setup -j$(nproc)
+
+    # Build the project
+    - name: Build
+      run: ${{ matrix.args }} make -j$(nproc)
diff --git a/Makefile b/Makefile
index 90e354fc10..879272cf69 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ ARES_GDB := 1
 
 # Toggle release or debug mode. 1=Release, 0=Debug
 # Note: currently only used for HackerOoT
-RELEASE := 0
+RELEASE ?= 0
 
 # Valid compression algorithms are 'yaz', 'lzo' and 'aplib'
 COMPRESSION ?= yaz
diff --git a/include/config/config_graphics.h b/include/config/config_graphics.h
index 89f3c1836e..a4d5bffb77 100644
--- a/include/config/config_graphics.h
+++ b/include/config/config_graphics.h
@@ -9,8 +9,11 @@
  * F3DEX3 options
  * This only works on real console or LLE emulators like ares or ParaLLEl. It
  * will not work on legacy HLE emulators such as Project64.
+ * Note: you can define this with `CPP_DEFINES=-DENABLE_F3DEX3=0 make -j$(nproc)`
 */
+#ifndef ENABLE_F3DEX3
 #define ENABLE_F3DEX3 true
+#endif
 // Remove usually-unnecessary syncs from texture loading commands. Only matters
 // for vanilla display lists--new ones exported from fast64 already have the
 // syncs removed. This is buggy (graphical issues / crashes) as some vanilla DLs