set actual github repo for nixpkgs

flake.lock

@@ -2,15 +2,18 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1713297878,
-        "narHash": "sha256-hOkzkhLT59wR8VaMbh1ESjtZLbGi+XNaBN6h49SPqEc=",
-        "path": "/nix/store/6bf943g0mlhymyffs9dflzgc78r93s60-source",
-        "rev": "66adc1e47f8784803f2deb6cacd5e07264ec2d5c",
-        "type": "path"
+        "lastModified": 1715087517,
+        "narHash": "sha256-CLU5Tsg24Ke4+7sH8azHWXKd0CFd4mhLWfhYgUiDBpQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b211b392b8486ee79df6cdfb1157ad2133427a29",
+        "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "root": {

flake.nix

@@ -1,6 +1,8 @@
 {
   description = "Actual budget app";
 
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
   outputs = { self, nixpkgs }: let
     pkgs = import nixpkgs {
       system = "x86_64-linux";