diff --git a/.gitmodules b/.gitmodules
index a7222ec6..ad4e4792 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -199,3 +199,13 @@
 [submodule "vendor/constantine"]
 	path = vendor/constantine
 	url = https://github.com/mratsim/constantine.git
+[submodule "vendor/nim-circom-compat"]
+	path = vendor/nim-circom-compat
+	url = https://github.com/codex-storage/nim-circom-compat.git
+	ignore = untracked
+	branch = master
+[submodule "vendor/codex-storage-proofs-circuits"]
+	path = vendor/codex-storage-proofs-circuits
+	url = https://github.com/codex-storage/codex-storage-proofs-circuits.git
+	ignore = untracked
+	branch = master
diff --git a/vendor/codex-storage-proofs-circuits b/vendor/codex-storage-proofs-circuits
new file mode 160000
index 00000000..c03b4322
--- /dev/null
+++ b/vendor/codex-storage-proofs-circuits
@@ -0,0 +1 @@
+Subproject commit c03b43221d68e34bd5015a4e4ee1a0ad3299f8ef
diff --git a/vendor/nim-circom-compat b/vendor/nim-circom-compat
new file mode 160000
index 00000000..2a913440
--- /dev/null
+++ b/vendor/nim-circom-compat
@@ -0,0 +1 @@
+Subproject commit 2a913440ad85c1011cc6e4c7d09dedb5abf7d2b9