add ups periodic checks

flake.nix

@@ -1,8 +1,6 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
-    # this is for uv 0.6.17, 0.7.0 has a change uv2nix doesn't yet support: https://github.com/astral-sh/uv/pull/13176
-    nixpkgs-29335f.url = "github:nixos/nixpkgs/29335f23bea5e34228349ea739f31ee79e267b88";
 
     pyproject-nix = {
       url = "github:pyproject-nix/pyproject.nix";
@@ -27,7 +25,6 @@
     {
       self,
       nixpkgs,
-      nixpkgs-29335f,
       uv2nix,
       pyproject-nix,
       pyproject-build-systems,
@@ -73,7 +70,8 @@
           old: {
             postPatch = ''
               substituteInPlace src/lego_monitoring/core/const.py \
-                --replace-fail 'VULNIX_PATH: str = ...' 'VULNIX_PATH = "${lib.getExe pkgs.vulnix}"'
+                --replace-fail 'VULNIX_PATH: str = ...' 'VULNIX_PATH = "${lib.getExe pkgs.vulnix}"' \
+                --replace-fail 'UPSC_PATH = "/usr/bin/upsc"' 'UPSC_PATH = "${pkgs.nut}/bin/upsc"'
             '';
           }
         );
@@ -81,7 +79,6 @@
 
       # This example is only using x86_64-linux
       pkgs = nixpkgs.legacyPackages.x86_64-linux;
-      pkgs-29335f = nixpkgs-29335f.legacyPackages.x86_64-linux;
 
       # Use Python 3.12 from nixpkgs
       python = pkgs.python312;
@@ -129,7 +126,7 @@
         impure = pkgs.mkShell {
           packages = [
             python
-            pkgs-29335f.uv
+            pkgs.uv
           ];
           env =
             {
@@ -209,7 +206,7 @@
           pkgs.mkShell {
             packages = [
               virtualenv
-              pkgs-29335f.uv
+              pkgs.uv
             ];
 
             env = {