flake.nix

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

  outputs = inputs@{ nixpkgs, flake-parts, ... }:
    flake-parts.lib.mkFlake {inherit inputs;} {
      systems = nixpkgs.lib.systems.flakeExposed;
      perSystem = {
        lib,
        pkgs,
        system,
        config,
        ...
      }: 
      {
        _module.args.pkgs = import nixpkgs {
          inherit system;
          overlays = [
            (import inputs.rust-overlay)
          ];
        };

        devShells.default = with pkgs; let 
        # Rust Toolchain
        toolchain = pkgs.rust-bin.stable.latest.default.override {
          extensions = ["rust-src"];
          targets = ["x86_64-unknown-linux-gnu"];
        };
        in mkShell
        {
          nativeBuildInputs = with pkgs; [
            toolchain
						openssl
          ] ++ lib.optionals stdenv.isLinux [] ++ lib.optionals stdenv.isDarwin [];
        };
      };
    };
}