diff --git a/.forgejo/workflows/test.yml b/.forgejo/workflows/test.yml
index 11acc1d..f71e68d 100644
--- a/.forgejo/workflows/test.yml
+++ b/.forgejo/workflows/test.yml
@@ -7,12 +7,14 @@ on:
 
 jobs:
   pytest:
-    runs-on: docker
-    container:
-      image: python:3.12-slim
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
       - name: Install package + test deps
         run: pip install --no-cache-dir -e '.[test]'
 
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..fe27081
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "reference/meshcore-firmware"]
+	path = reference/meshcore-firmware
+	url = https://github.com/meshcore-dev/MeshCore.git
+[submodule "reference/meshcore-py"]
+	path = reference/meshcore-py
+	url = https://github.com/meshcore-dev/meshcore_py.git
diff --git a/reference/meshcore-firmware b/reference/meshcore-firmware
new file mode 160000
index 0000000..1a7b361
--- /dev/null
+++ b/reference/meshcore-firmware
@@ -0,0 +1 @@
+Subproject commit 1a7b3614a8439894714a58af55ab7f501e6bb928
diff --git a/reference/meshcore-py b/reference/meshcore-py
new file mode 160000
index 0000000..4d0be87
--- /dev/null
+++ b/reference/meshcore-py
@@ -0,0 +1 @@
+Subproject commit 4d0be8788a5c7e80555ff2570e83b2c03985f91d