{
  description = "GitButler development environment";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    # Keep the browsers aligned with Playwright in pnpm-lock.yaml (1.58.2).
    nixpkgs-playwright.url = "github:NixOS/nixpkgs/7f6a6fb1c76e09426d6125e7e2543efe2a7f74e3";
    flake-utils.url = "github:numtide/flake-utils";
    rust-overlay.url = "github:oxalica/rust-overlay";
  };

  outputs = {
    self,
    nixpkgs,
    nixpkgs-playwright,
    flake-utils,
    rust-overlay,
  }:
    flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import nixpkgs {
        inherit system;
        overlays = [(import rust-overlay)];
      };

      playwrightBrowsers = nixpkgs-playwright.legacyPackages.${system}.playwright-driver.browsers;
      rustToolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;

      # libghostty-vt-sys (via but-tty) builds libghostty-vt with Zig 0.17.x.
      # On macOS that build runs Apple tools (`xcrun nmedit`) the Nix SDK lacks,
      # so Zig gets the system toolchain instead, like libghostty-rs's own shell.
      zig =
        if pkgs.stdenv.hostPlatform.isDarwin
        then
          pkgs.writeShellScriptBin "zig" ''
            unset SDKROOT DEVELOPER_DIR
            PATH=$(echo "$PATH" | tr ':' '\n' | grep -v xcbuild | paste -sd: -)
            exec ${pkgs.zig_0_17}/bin/zig "$@"
          ''
        else pkgs.zig_0_17;

      # Nix's cc links with nixpkgs' ld64, which links the GPUI client 2.4x slower than the
      # linker Xcode and the Command Line Tools ship, so Cargo links with that one when it's
      # installed. Nix's ld wrapper is bypassed, so its library search paths are passed on.
      cargoLinker = pkgs.writeShellScript "cargo-linker" ''
        if ld=$(env -u DEVELOPER_DIR -u SDKROOT /usr/bin/xcode-select -p >/dev/null 2>&1 &&
          env -u DEVELOPER_DIR -u SDKROOT /usr/bin/xcrun --find ld 2>/dev/null); then
          exec ${pkgs.stdenv.cc}/bin/cc --ld-path="$ld" "$@" $NIX_LDFLAGS
        fi
        exec ${pkgs.stdenv.cc}/bin/cc "$@"
      '';
    in {
      devShells.default = pkgs.mkShell {
        packages = [
          rustToolchain
          pkgs.rust-analyzer
          pkgs.cargo-nextest
          pkgs.cargo-deny
          pkgs.cmake
          pkgs.curl
          pkgs.file
          pkgs.git
          pkgs.pkg-config
          pkgs.wget
          pkgs.nodejs_24
          pkgs.pnpm
          playwrightBrowsers
          pkgs.cargo-flamegraph
          pkgs.cargo-machete
          zig
        ];

        env =
          {
            RUST_SRC_PATH = "${rustToolchain}/lib/rustlib/src/rust/library";
          }
          // pkgs.lib.optionalAttrs pkgs.stdenv.hostPlatform.isDarwin {
            "CARGO_TARGET_${pkgs.stdenv.hostPlatform.rust.cargoEnvVarTarget}_LINKER" = "${cargoLinker}";
          };

        shellHook = ''
          # if we don't set TS_RS_EXPORT_DIR then `cargo test --all-features`
          # generates ts files and dirties the working copy
          export TS_RS_EXPORT_DIR="''${TMPDIR:-/tmp}/gitbutler-ts-rs"
          mkdir -p "$TS_RS_EXPORT_DIR"

          export PLAYWRIGHT_BROWSERS_PATH=${playwrightBrowsers}
        '';
      };
    });
}