diff --git a/.gitmodules b/.gitmodules
index 3d55139..05040c6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -465,3 +465,12 @@
 	path = postool
 	url = https://github.com/SwissalpS/postool.git
 	
+[submodule "pkarcs"]
+	path = pkarcs
+	url = https://github.com/TumeniNodes/pkarcs.git
+[submodule "slats"]
+	path = slats
+	url = https://github.com/v-rob/slats
+[submodule "glass_stained"]
+	path = glass_stained
+	url = https://github.com/v-rob/glass_stained.git
diff --git a/glass_stained b/glass_stained
new file mode 160000
index 0000000..5fd5d29
--- /dev/null
+++ b/glass_stained
@@ -0,0 +1 @@
+Subproject commit 5fd5d2946235f39e11c3320f092932a253b74514
diff --git a/pkarcs b/pkarcs
new file mode 160000
index 0000000..cb850cb
--- /dev/null
+++ b/pkarcs
@@ -0,0 +1 @@
+Subproject commit cb850cb5c73842dd09a7bd35d16e7bbc42d05d70
diff --git a/slats b/slats
new file mode 160000
index 0000000..723a9c9
--- /dev/null
+++ b/slats
@@ -0,0 +1 @@
+Subproject commit 723a9c941c2bfcbb6f8d67406d6384536d83f0b8