diff --git a/.gitmodules b/.gitmodules
index c0f4609f8a55ae95cdac0b0b2cf736785e272c78..8cf4689ef3137d863554d340a9287afb8fdba560 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "externals/lyonpotpourri"]
 	path = externals/lyonpotpourri
 	url = https://git.purrdata.net/jwilkes/lyonpotpourri.git
+[submodule "Gem"]
+	path = Gem
+	url = https://git.purrdata.net/jwilkes/Gem.git
diff --git a/Gem b/Gem
new file mode 160000
index 0000000000000000000000000000000000000000..438dab32831090c2d2cddb71d6a3219622623484
--- /dev/null
+++ b/Gem
@@ -0,0 +1 @@
+Subproject commit 438dab32831090c2d2cddb71d6a3219622623484