diff --git a/.gitmodules b/.gitmodules
index 7862383..90992e7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "ext/lwip-contrib"]
 	path = ext/lwip-contrib
 	url = https://github.com/joseph-henry/lwip-contrib.git
+[submodule "ext/curl"]
+	path = ext/curl
+	url = https://github.com/curl/curl.git
diff --git a/ext/curl b/ext/curl
new file mode 160000
index 0000000..942cf12
--- /dev/null
+++ b/ext/curl
@@ -0,0 +1 @@
+Subproject commit 942cf12c2f73c4bb13858acc9101b1d644bf7c50
diff --git a/src/entropy b/src/entropy
new file mode 100644
index 0000000..e1fcace
--- /dev/null
+++ b/src/entropy
@@ -0,0 +1 @@
+e7no7nVRFItg