flake.nix

{
  description = "Devshell flake";

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

  outputs = { self, nixpkgs, flake-utils, rust-overlay } @ inputs:
    flake-utils.lib.eachDefaultSystem (system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs {
          inherit overlays system;
        };
      in
      {
        formatter = pkgs.nixpkgs-fmt;

        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            go
            gofumpt
            golangci-lint
            rust-bin.stable.latest.default
          ];
        };
      }
    );
}