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My NixOS systems configurations.
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thinkpad-t460s.nix (1345B)

      1 { config, pkgs, ... }:
      2 #let
      3 #  sources = import ../../nix/sources.nix;
      4 #in
      5 {
      6   imports = [
      7     #  (sources.nixos-hardware + "/lenovo/thinkpad/t460s")
      8     #  (sources.nixos-hardware + "/common/pc/ssd")
      9     ./thinkpad.nix
     10   ];
     11   nix.maxJobs = 12;
     12   services = {
     13     tlp = {
     14       settings = {
     15         # CPU optimizations
     16         "CPU_SCALING_GOVERNOR_ON_AC" = "performance";
     17         "CPU_SCALING_GOVERNOR_ON_BAT" = "powersave";
     18         "CPU_MIN_PERF_ON_AC" = 0;
     19         "CPU_MAX_PERF_ON_AC" = 100;
     20         "CPU_MIN_PERF_ON_BAT" = 0;
     21         "CPU_MAX_PERF_ON_BAT" = 50;
     22         # DEVICES (wifi, ..)
     23         "DEVICES_TO_DISABLE_ON_STARTUP" = "";
     24         "DEVICES_TO_ENABLE_ON_AC" = "bluetooth wifi wwan";
     25         "DEVICES_TO_DISABLE_ON_BAT" = "";
     26         # Network management
     27         "DEVICES_TO_DISABLE_ON_LAN_CONNECT" = "";
     28         "DEVICES_TO_DISABLE_ON_WIFI_CONNECT" = "";
     29         "DEVICES_TO_DISABLE_ON_WWAN_CONNECT" = "";
     30         "DEVICES_TO_ENABLE_ON_LAN_DISCONNECT" = "";
     31         "DEVICES_TO_ENABLE_ON_WIFI_DISCONNECT" = "";
     32         "DEVICES_TO_ENABLE_ON_WWAN_DISCONNECT" = "";
     33         # Docking
     34         "DEVICES_TO_DISABLE_ON_DOCK" = "wifi";
     35         "DEVICES_TO_ENABLE_ON_UNDOCK" = "wifi";
     36         # Make sure it uses the right hard drive
     37         "DISK_DEVICES" = "nvme0n1p3";
     38       };
     39     };
     40     xserver = {
     41       dpi = 128;
     42     };
     43   };
     44 }