diff --git a/overlays/unstable/default.nix b/overlays/unstable/default.nix
index ea6fa6b..9189d35 100644
--- a/overlays/unstable/default.nix
+++ b/overlays/unstable/default.nix
@@ -2,6 +2,7 @@
 final: prev: {
   inherit (channels.unstable)
     gemini-cli
+    opencode
     # open-webui
     # vscode
     # nodejs_20
diff --git a/systems/aarch64-darwin/m4/default.nix b/systems/aarch64-darwin/m4/default.nix
index 2f80cc0..4b12837 100644
--- a/systems/aarch64-darwin/m4/default.nix
+++ b/systems/aarch64-darwin/m4/default.nix
@@ -45,6 +45,7 @@ with lib.metacfg;
     aider-chat
     fabric-ai
     gemini-cli
+    opencode
   ];
 
   users.users.harald.shell = pkgs.fish;