auto-upgrade: `--update-input` -> `--override-input`

base/services/auto-upgrade.nix

@@ -4,8 +4,11 @@
     enable = true;
     flake = "git+https://git.pvv.ntnu.no/Drift/pvv-nixos-config.git";
     flags = [
-      "--update-input" "nixpkgs"
-      "--update-input" "nixpkgs-unstable"
+      # --update-input is deprecated since nix 2.22, and removed in lix 2.90
+      # https://git.lix.systems/lix-project/lix/issues/400
+      "--refresh"
+      "--override-input" "nixpkgs" "github:nixos/nixpkgs/nixos-24.05-small"
+      "--override-input" "nixpkgs-unstable" "github:nixos/nixpkgs/nixos-unstable-small"
       "--no-write-lock-file"
     ];
   };

flake.lock

@@ -166,9 +166,10 @@
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
+        "owner": "NixOS",
         "ref": "nixos-24.05-small",
-        "type": "indirect"
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs-stable": {
@@ -197,9 +198,10 @@
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
+        "owner": "NixOS",
         "ref": "nixos-unstable-small",
-        "type": "indirect"
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "pvv-calendar-bot": {

flake.nix

@@ -2,8 +2,8 @@
   description = "PVV System flake";
 
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-24.05-small";
-    nixpkgs-unstable.url = "nixpkgs/nixos-unstable-small";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05-small"; # remember to also update the url in base/services/auto-upgrade.nix
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable-small";
 
     sops-nix.url = "github:Mic92/sops-nix";
     sops-nix.inputs.nixpkgs.follows = "nixpkgs";