diff --git a/.gitmodules b/.gitmodules
index 2d6ad32..b1dcf2b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,12 @@
 [submodule "syndicate/preserves"]
 	path = syndicate/preserves
 	url = https://git.syndicate-lang.org/syndicate-lang/preserves.git
+[submodule "coap"]
+	path = coap
+	url = git@codeberg.org:eris/nim-coap.git
+[submodule "syndicate/protocols"]
+	path = syndicate/protocols
+	url = https://git.syndicate-lang.org/syndicate-lang/syndicate-protocols.git
+[submodule "syndicate/syndicate-protocols"]
+	path = syndicate/syndicate-protocols
+	url = https://git.syndicate-lang.org/syndicate-lang/syndicate-protocols.git
diff --git a/coap b/coap
new file mode 160000
index 0000000..b4a362d
--- /dev/null
+++ b/coap
@@ -0,0 +1 @@
+Subproject commit b4a362dabbfa3f63a012467fdb9e56efcb94b934
diff --git a/syndicate/protocols b/syndicate/protocols
new file mode 160000
index 0000000..ca92d99
--- /dev/null
+++ b/syndicate/protocols
@@ -0,0 +1 @@
+Subproject commit ca92d99c524d99b6d3be04a0ba5383ec5a65b550
diff --git a/syndicate/syndicate-protocols b/syndicate/syndicate-protocols
new file mode 160000
index 0000000..ca92d99
--- /dev/null
+++ b/syndicate/syndicate-protocols
@@ -0,0 +1 @@
+Subproject commit ca92d99c524d99b6d3be04a0ba5383ec5a65b550