diff --git a/.gitmodules b/.gitmodules
index dbdd725..76084f8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -8887,3 +8887,18 @@
 [submodule "nbdkit"]
 	path = nbdkit
 	url = ../../SLFO-pool/nbdkit
+[submodule "glfw"]
+	path = glfw
+	url = ../../SLFO-pool/glfw
+[submodule "libdovi"]
+	path = libdovi
+	url = ../../SLFO-pool/libdovi
+[submodule "libplacebo"]
+	path = libplacebo
+	url = ../../SLFO-pool/libplacebo
+[submodule "librist"]
+	path = librist
+	url = ../../SLFO-pool/librist
+[submodule "python-glad2"]
+	path = python-glad2
+	url = ../../SLFO-pool/python-glad2
diff --git a/glfw b/glfw
new file mode 160000
index 0000000..8689c36
--- /dev/null
+++ b/glfw
@@ -0,0 +1 @@
+Subproject commit 8689c362a36d6dae76ddc6790bf94e49bcfe45396bf69975914699c0c15dde01
diff --git a/libdovi b/libdovi
new file mode 160000
index 0000000..2d486de
--- /dev/null
+++ b/libdovi
@@ -0,0 +1 @@
+Subproject commit 2d486de0334d19f07f6679e6afca6fbfe9df4349e276cfbf755713a619ba932b
diff --git a/libplacebo b/libplacebo
new file mode 160000
index 0000000..e5cfaf6
--- /dev/null
+++ b/libplacebo
@@ -0,0 +1 @@
+Subproject commit e5cfaf6ce646ccf89d04b2172f6581187b7e9e1be5ad1fc81a988ba4da4f5c9b
diff --git a/librist b/librist
new file mode 160000
index 0000000..62ab218
--- /dev/null
+++ b/librist
@@ -0,0 +1 @@
+Subproject commit 62ab218e6648951883332c9a55c795596cd0c7b2b6f9930b09fdafd1a3b80d48
diff --git a/python-glad2 b/python-glad2
new file mode 160000
index 0000000..8e8ef2b
--- /dev/null
+++ b/python-glad2
@@ -0,0 +1 @@
+Subproject commit 8e8ef2b57cfc84a883c0d1fad8a07c1ceabba934a932337001fb8536866a7299