{
 description = "OpenCode development flake";

 inputs = {
 nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
 };

 outputs =
 { self, nixpkgs, ... }:
 let
 systems = [
 "aarch64-linux"
 "x86_64-linux"
 "aarch64-darwin"
 "x86_64-darwin"
 ];
 forEachSystem = f: nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system});
 rev = self.shortRev or self.dirtyShortRev or "dirty";
 in
 {
 devShells = forEachSystem (pkgs: {
 default = pkgs.mkShell {
 packages = with pkgs; [
 bun
 nodejs_20
 pkg-config
 openssl
 git
 ];
 };
 });

 overlays = {
 default =
 final: _prev:
 let
 node_modules = final.callPackage ./nix/node_modules.nix {
 inherit rev;
 };
 opencode = final.callPackage ./nix/opencode.nix {
 inherit node_modules;
 };
 desktop = final.callPackage ./nix/desktop.nix {
 inherit opencode;
 };
 in
 {
 inherit opencode;
 opencode-desktop = desktop;
 };
 };

 packages = forEachSystem (
 pkgs:
 let
 node_modules = pkgs.callPackage ./nix/node_modules.nix {
 inherit rev;
 };
 opencode = pkgs.callPackage ./nix/opencode.nix {
 inherit node_modules;
 };
 desktop = pkgs.callPackage ./nix/desktop.nix {
 inherit opencode;
 };
 in
 {
 default = opencode;
 inherit opencode desktop;
 # Updater derivation with fakeHash - build fails and reveals correct hash
 node_modules_updater = node_modules.override {
 hash = pkgs.lib.fakeHash;
 };
 }
 );
 };
}