Update nixpkgs

flake.lock

@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1628287034,
-        "narHash": "sha256-pWMEpQQcKxBy0OKskFLXJHEyGYJIiMu/BUQjCWxGF38=",
+        "lastModified": 1638150501,
+        "narHash": "sha256-aWH3MRmjUtx8ciSGLegBJC5mhymsuroHPs74ZldrNTU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "b0d769691cc379c9ab91d3acec5d14e75c02c02b",
+        "rev": "9de77227d7780518cfeaee5a917970247f3ecc56",
         "type": "github"
       },
       "original": {
@@ -53,11 +53,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1635403963,
-        "narHash": "sha256-0actzfzBAXvvDJ/EvPSGbtCPXUwSObQrcq0RpsPWZgA=",
+        "lastModified": 1638110343,
+        "narHash": "sha256-hQaow8sGPyUrXgrqgDRsfA+73uR0vms2goTQNxIAaRQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2deb07f3ac4eeb5de1c12c4ba2911a2eb1f6ed61",
+        "rev": "942eb9a335b4cd22fa6a7be31c494e53e76f5637",
         "type": "github"
       },
       "original": {

layers/base.nix

@@ -25,8 +25,8 @@ in
   nix.extraOptions = ''
     experimental-features = nix-command flakes
   '';
-  nix.daemonNiceLevel = 13;
-  nix.daemonIONiceLevel = 7;
+  #nix.daemonNiceLevel = 13;
+  nix.daemonCPUSchedPolicy = "batch";
 
   # This value determines the NixOS release with which your system is to be
   # compatible, in order to avoid breaking some software such as database