let
  pkgs = import ./nix/pkgs.nix;
  stable = pkgs.stable;
  unstable = pkgs.unstable;
  # Haskell packages
  ghc = stable.haskell.compiler.ghc910;
  hls = stable.haskell.packages.ghc910.haskell-language-server;
  # PostgreSQL client tools (server + pg_cron run inside the container)
  pg = stable.postgresql_18;

in stable.mkShell {
  name = "webserver-dev";

  buildInputs = [
    # Haskell toolchain
    ghc
    hls
    unstable.haskellPackages.cabal-install
    unstable.haskellPackages.hoogle

    # Formatters
    stable.stylish-haskell
    stable.haskellPackages.fourmolu
    stable.haskellPackages.cabal-fmt
    stable.nixfmt-classic

    # Database tools
    stable.libpq
    pg
    unstable.sqitchPg

    # Build dependencies
    stable.pkg-config
    stable.zlib

    # CLI tools
    unstable.just
    unstable.amber-lang
    unstable.watchexec
    unstable.rainfrog
    stable.dotenvx

    # Container tools
    stable.podman
    stable.podman-compose
  ];

  # Ensure cabal can find native libraries
  LD_LIBRARY_PATH = "${stable.libpq}/lib:${stable.zlib}/lib";
  PKG_CONFIG_PATH =
    "${stable.libpq}/lib/pkgconfig:${stable.zlib}/lib/pkgconfig";
}