Flake input changes: * Added 'nix': 'github:NixOS/nix/73769b28e376cf1fb3e7248bafaa17c35527925d' * Added 'nix/nixpkgs': 'github:edolstra/nixpkgs/43e283790fbe330b723ac44b584824cf6d85c1ee' * Added 'nixpkgs': 'github:edolstra/nixpkgs/54a27fb2fc5fbd8927f9f6dc77fe1de1faa05266'