diff --git a/.gitmodules b/.gitmodules
index 824c2f7..c4609e0 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -92,3 +92,6 @@
 [submodule "2021/Timpy"]
 	path = 2021/Timpy
 	url = https://github.com/timodw/aoc_2021
+[submodule "SWAMP"]
+	path = SWAMP
+	url = https://github.com/AWerbrouck/AoC
diff --git a/SWAMP b/SWAMP
new file mode 160000
index 0000000..16cd1dd
--- /dev/null
+++ b/SWAMP
@@ -0,0 +1 @@
+Subproject commit 16cd1dd8eb8a7c7e39a5ad8780e8c6a9af7c00c0