{
  description = "Shell for snowcrash project";

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

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };
        tmux-setup = pkgs.writeShellScriptBin "tmux-setup" ''
          #!/usr/bin/env sh
          SESSION="SnowCrash"
          DIR=$(git rev-parse --show-toplevel 2>/dev/null || pwd)
          if ! tmux has-session -t $SESSION 2>/dev/null; then
            tmux new-session -d -s $SESSION -c "$DIR" -n dev
            tmux send-keys -t $SESSION:0 'ssh level00@localhost -p 4242' C-m
            tmux split-window -h -p 30 -t $SESSION:0 -c "$DIR"
            tmux send-keys -t $SESSION:0.1 'exec zsh' C-m
            tmux new-window -t $SESSION:1 -n git -c "$DIR"
            tmux send-keys -t $SESSION:1 'lazygit' C-m
          fi
          tmux select-window -t $SESSION:0
          tmux select-pane -t $SESSION:0.0
          tmux attach -t $SESSION
        '';
      in
      {
        devShells.default = pkgs.mkShell {
          name = "snowcrash-42";
          buildInputs =
            with pkgs;
            [
              tmux-setup
              john
            ]
            ++ (
              if pkgs.stdenv.isLinux then
                [
                  strace
                  ltrace
                  mtrace
                ]
              else
                [ ]
            );

          shellHook = ''
              export AS=nasm
              export CC='clang'
              export ASM_LSP_CONFIG="$(pwd)/asm-lsp.toml"
              printf "\n\033[0;90mASM env loaded for: \033[38;5;220m${system}\033[0m\n"
            '';
        };
      }
    );
}