update opencode to more recent version with overlay

common/programs/opencode.nix

@@ -0,0 +1,32 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  ccfg = import ../config.nix;
+  cfg_path = [
+    ccfg.custom_config_key
+    "programs"
+    "opencode"
+  ];
+  cfg = lib.attrsets.getAttrFromPath cfg_path config;
+in
+{
+  options =
+    { }
+    // lib.attrsets.setAttrByPath cfg_path {
+      enable = lib.mkEnableOption "opencode";
+    };
+
+  config = lib.mkIf cfg.enable ({
+    environment.systemPackages = with pkgs; [
+      opencode
+    ];
+
+    environment.shellAliases = {
+      "oc" = "all_proxy='' http_proxy='' https_proxy='' opencode";
+    };
+  });
+}