diff --git a/.gitmodules b/.gitmodules
index 5ce0344..3e805a6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -15,3 +15,7 @@
 	path = backend/url-shortener
 	url = git://f0xx.org/androidcast_project/url-shortener
 	branch = next
+[submodule "deps/ac-ms-url-shortener"]
+	path = deps/ac-ms-url-shortener
+	url = git://f0xx.org/ac/ac-ms-url-shortener
+	branch = next
diff --git a/deps/ac-ms-url-shortener b/deps/ac-ms-url-shortener
new file mode 160000
index 0000000..f2479b5
--- /dev/null
+++ b/deps/ac-ms-url-shortener
@@ -0,0 +1 @@
+Subproject commit f2479b5cca34034122bebf17c51b6cb7eab3310e
diff --git a/third-party/README.md b/third-party/README.md
deleted file mode 100644
index f6f6684..0000000
--- a/third-party/README.md
+++ /dev/null
@@ -1 +0,0 @@
-Run `git submodule update --init --recursive` from repo root.
diff --git a/third-party/libvpx b/third-party/libvpx
new file mode 160000
index 0000000..572f663
--- /dev/null
+++ b/third-party/libvpx
@@ -0,0 +1 @@
+Subproject commit 572f663c893499db9e7f69bb2fec821eae6b1c40
diff --git a/third-party/opus b/third-party/opus
new file mode 160000
index 0000000..3da9f7a
--- /dev/null
+++ b/third-party/opus
@@ -0,0 +1 @@
+Subproject commit 3da9f7a6db1c05c3996cb363a9d1931a978bf1be
diff --git a/third-party/speex b/third-party/speex
new file mode 160000
index 0000000..0589522
--- /dev/null
+++ b/third-party/speex
@@ -0,0 +1 @@
+Subproject commit 05895229896dc942d453446eba6f9f5ddcf95422
diff --git a/third-party/wireguard-android b/third-party/wireguard-android
new file mode 160000
index 0000000..e7b3a3c
--- /dev/null
+++ b/third-party/wireguard-android
@@ -0,0 +1 @@
+Subproject commit e7b3a3c118836e112620b1302a8ba1873ad4daac