{  "nodes": {    "nixpkgs": {      "locked": {        "lastModified": 1749285348,        "narHash": "sha256-frdhQvPbmDYaScPFiCnfdh3B/Vh81Uuoo0w5TkWmmjU=",        "owner": "nixos",        "repo": "nixpkgs",        "rev": "3e3afe5174c561dee0df6f2c2b2236990146329f",        "type": "github"      },      "original": {        "owner": "nixos",        "ref": "nixos-unstable",        "repo": "nixpkgs",        "type": "github"      }    },    "root": {      "inputs": {        "nixpkgs": "nixpkgs"      }    }  },  "root": "root",  "version": 7}