{ pkgs ? import <nixpkgs> {},
  fenix ? builtins.getFlake "github:nix-community/fenix",
  fenixToolchain ? "default"
}:
let
  inherit (pkgs) mkShellNoCC;
  fenixPkgs = fenix.packages.${pkgs.system};
  toolchain = fenixPkgs.${fenixToolchain}.toolchain;
in mkShellNoCC {
  packages = [ toolchain fenixPkgs.rust-analyzer ];
}