smo-server/flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    crane = {
      url = "github:ipetkov/crane";
    };
  };
  outputs = {
    self,
    nixpkgs,
    flake-utils,
    fenix,
    crane
  }:
    flake-utils.lib.eachDefaultSystem
    (
      system: let
        overlays = [fenix.overlays.default];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
        craneLib = crane.mkLib pkgs;
        commonArgs = {
          src = craneLib.cleanCargoSource ./.;
          strictDeps = true;

          nativeBuildInputs = with pkgs; [pkg-config cmake];
          buildInputs = with pkgs; [
            openssl
            zlib-ng
          ] ++ lib.optionals stdenv.isDarwin [
            libiconv
          ];
        };
      in
        with pkgs; {
          devShells.default = mkShell {
            buildInputs = [
              pkgs.fenix.stable.completeToolchain
              pkg-config
              openssl
            ];
          };
          formatter = pkgs.alejandra;
          packages.default = craneLib.buildPackage (commonArgs // {
            cargoArtifacts = craneLib.buildDepsOnly commonArgs;
          });
        }
    );
}