Rust Nix Shell

shell.nix

let
  nixpkgs = import <nixpkgs> {};
  rtc = (nixpkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain);
  rust = rtc.override {
    extensions = [ "rust-src" "rust-analysis" ];
  };
in
  with nixpkgs;
  mkShell {
    name = "rust";
    buildInputs = [
        cargo-deny
        cargo-expand
        cargo-watch
        openssl
        pkgconfig
        ripgrep
        rust
    ];
  }