Parses Cargo.lock and provides build inputs based on the crates it finds.

• cargo build at least once to generate Cargo.lock.
• nix flake new -t github:yrns/rustify .
• nix develop

{ pkgs ? import <nixpkgs> { } }:
let rustify = builtins.getFlake "github:yrns/rustify";
in rustify.lib.mkShell {
  lockFile = ./Cargo.lock;
  inherit pkgs;
}