diff --git a/overlay.nix b/overlay.nix
index dc57326..562af80 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -31,10 +31,12 @@ final: prev: {
 
   python3Packages = prev.python3Packages.overrideScope (pfinal: pprev: {
     feedvalidator = pfinal.callPackage ./pkgs/python/feedvalidator {};
+    megacom = pfinal.callPackage ./pkgs/python/megacom {};
   });
 
   # add to top level because it has a binary
   feedvalidator = final.python3Packages.feedvalidator;
+  megacom = final.python3Packages.megacom;
 
   outer-wilds-text-adventure = prev.callPackage ./pkgs/games/outer-wilds-text-adventure {};
 
diff --git a/pkgs/python/megacom/default.nix b/pkgs/python/megacom/default.nix
new file mode 100644
index 0000000..9012894
--- /dev/null
+++ b/pkgs/python/megacom/default.nix
@@ -0,0 +1,21 @@
+{
+  fetchPypi,
+  buildPythonPackage,
+
+  pyserial,
+  pyserial-asyncio,
+}: buildPythonPackage rec {
+  pname = "megacom";
+  version = "0.1.2";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-q2sU37uTX98RJDF0WFt7vzqtfLk3u25COCdKt34/Z70=";
+  };
+
+  dependencies = [
+    pyserial
+    pyserial-asyncio
+  ];
+
+  doCheck = false;
+}