diff --git a/.gitmodules b/.gitmodules
index 4c9b874..00f6752 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,9 @@
 [submodule "scripts/util"]
 	path = scripts/util
 	url = https://github.com/targetdisk/bash-util
+[submodule "modules/openring"]
+	path = modules/openring
+	url = https://git.sr.ht/~sircmpwn/openring
+[submodule "modules/resume"]
+	path = modules/resume
+	url = https://github.com/targetdisk/resume
diff --git a/Makefile b/GNUmakefile
similarity index 100%
rename from Makefile
rename to GNUmakefile
diff --git a/modules/openring b/modules/openring
new file mode 160000
index 0000000..f5c994f
--- /dev/null
+++ b/modules/openring
@@ -0,0 +1 @@
+Subproject commit f5c994fc3a6ccd0dc97e1030a49b4b3aded955e2
diff --git a/modules/resume b/modules/resume
new file mode 160000
index 0000000..75cf7b9
--- /dev/null
+++ b/modules/resume
@@ -0,0 +1 @@
+Subproject commit 75cf7b9c1145927b6e18d01e6aa80b220dcc66a9