{
  description = "Dev Shell for AdventOfCode by lilith";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = {
    nixpkgs,
    rust-overlay,
    flake-utils,
    ...
  }:
    flake-utils.lib.eachDefaultSystem (
      system: let
        overlays = [(import rust-overlay)];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
      in {
        devShells.default = with pkgs;
          mkShell {
            buildInputs = [
              openssl
              pkg-config
              cargo-deny
              cargo-edit
              cargo-watch
              rust-analyzer
              (
                rust-bin.selectLatestNightlyWith (toolchain:
                  toolchain.default.override {
                    extensions = ["rust-src"];
                  })
              )
            ];
          };
      }
    );
}