From 30bdb1e7e535f8257f06a929012e58f421f709b0 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Fri, 10 Dec 2021 23:40:36 +0100
Subject: tv w110er nix.daemon*: admit NixOS 21.11

---
 tv/2configs/hw/w110er.nix | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/tv/2configs/hw/w110er.nix b/tv/2configs/hw/w110er.nix
index 818d1aca..09dd9a49 100644
--- a/tv/2configs/hw/w110er.nix
+++ b/tv/2configs/hw/w110er.nix
@@ -1,7 +1,6 @@
-with import <stockholm/lib>;
-{ pkgs, ... }:
-
-{
+{ pkgs, ... }: let
+  lib = import <stockholm/lib>;
+in {
   imports = [
     ../smartd.nix
     {
@@ -16,6 +15,18 @@ with import <stockholm/lib>;
       #  "nvidia-settings"
       #];
     }
+
+    {
+      nix.buildCores = 4;
+      nix.maxJobs = 4;
+    }
+    (if lib.versionAtLeast (lib.versions.majorMinor lib.version) "21.11" then {
+      nix.daemonCPUSchedPolicy = "batch";
+      nix.daemonIOSchedPriority = 1;
+    } else {
+      nix.daemonIONiceLevel = 1;
+      nix.daemonNiceLevel = 1;
+    })
   ];
 
   boot.extraModprobeConfig = ''
@@ -35,13 +46,6 @@ with import <stockholm/lib>;
 
   networking.wireless.enable = true;
 
-  nix = {
-    buildCores = 4;
-    maxJobs = 4;
-    daemonIONiceLevel = 1;
-    daemonNiceLevel = 1;
-  };
-
   services.logind.extraConfig = ''
     HandleHibernateKey=ignore
     HandleLidSwitch=ignore
-- 
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