{
  description = "OpenCode MCP dev shell";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs";
  inputs.flake-utils.url = "github:numtide/flake-utils";

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
        opencodeConfig = {
          "$schema" = "https://opencode.ai/config.json";
          theme = "github";
          provider = {
            ollama = {
              npm = "@ai-sdk/openai-compatible";
              options = {
                baseURL = "http://ai-snow.reindeer-pinecone.ts.net:11434/v1";
              };
              models = {
                "llama3.1:70b" = { };
                "deepseek-r1:70b" = { };
                "mistral:latest" = { };
                "qwen3:32b" = { };
              };
            };
          };
          mcp = {
            playwright = {
              type = "local";
              command = [
                "npx"
                "-y"
                "@playwright/mcp@latest"
                "--executable-path"
                "${pkgs.chromium}/bin/chromium"
                "--no-sandbox"
              ];
            };
            sequential_thinking = {
              type = "local";
              command = [
                "npx"
                "-y"
                "@modelcontextprotocol/server-sequential-thinking"
              ];
            };
          };
        };
      in {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [ bash glib glib.out uv nodejs_22 opencode ];
        };
        packages.run = pkgs.writeShellScriptBin "run_flake" ''
          mkdir -p ~/.config/opencode
          cp ${
            self.packages.${system}.config_json
          } ~/.config/opencode/opencode.json
          ${pkgs.opencode}/bin/opencode
        '';
        packages.config_json = pkgs.writeTextFile {
          name = "config.json";
          text = builtins.toJSON opencodeConfig;
        };
        packages.opencodeInstance = pkgs.stdenv.mkDerivation {
          name = "opencode";
          buildInputs = [ pkgs.opencode ];
          installPhase = ''
            mkdir -p $out/bin
            ln -s ${pkgs.opencode}/bin/opencode $out/bin/opencode
            mkdir -p $out/config
            cp ${self.packages.${system}.config_json} $out/config/opencode.json
          '';
        };
      });
}