{
  inputs = {
    utils.url = "github:numtide/flake-utils";
    rust-overlay.url = "github:oxalica/rust-overlay";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };
  outputs = { self, nixpkgs, utils, rust-overlay }: utils.lib.eachDefaultSystem (system:
    let
      pkgs = import nixpkgs {
        inherit system;
        overlays = [ rust-overlay.overlays.default ];
      };
      rust = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
    in
    {
      devShells.default = pkgs.mkShell {
        buildInputs = with pkgs; [
          rust

          # Linker toolchain (.cargo/config.toml: linker = "clang", -fuse-ld=lld)
          clang
          lld

          # automatic rebuild
          watchexec

          # agent issue tracking
          beans

          # Like make, but just...
          just

          # Web toolchain
          ###
          # $ cargo install -f wasm-bindgen-cli --version 0.2.122
          # wasm-bindgen
          ###
          # Provides: wasm-opt
          binaryen
          simple-http-server

          # Bevy Linux dependencies
          alsa-lib
          libudev-zero
          libxkbcommon
          pkg-config
          udev
          vulkan-loader
          wayland
          libX11
          libXcursor
          libXi
          libXrandr
        ];

        shellHook = ''
          export LD_LIBRARY_PATH="${pkgs.lib.makeLibraryPath [ pkgs.vulkan-loader pkgs.wayland pkgs.libxkbcommon pkgs.udev pkgs.alsa-lib ]}:$LD_LIBRARY_PATH"
        '';
      };
    }
  );
}