Add fancontrol (#16)

modules/programs/default.nix

@@ -7,6 +7,7 @@
     ./coding.nix
     ./containers.nix
     ./drives.nix
+    ./fancontrol.nix
     ./fastfetch.nix
     ./fish.nix
     ./flatpak.nix

modules/programs/fancontrol.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  config,
+  options,
+  ...
+}: {
+  options.mods.fancontrol = {
+    enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+      description = "Enables fancontrol-gui with needed drivers";
+    };
+    forceId = lib.mkOption {
+      default = null;
+      example = "force_id=0x8628";
+      type = with lib.types; nullOr str;
+      description = "Modprobe options for the it87 driver. Information at: https://wiki.archlinux.org/title/Lm_sensors#Gigabyte_B250/Z370/B450M/B560M/B660M/Z690/B550_motherboards";
+    };
+  };
+  config = lib.mkIf config.mods.fancontrol.enable (
+    lib.optionalAttrs (options ? home.packages) {
+      programs.fancontrol-gui.enable = true;
+    }
+    // (lib.optionalAttrs (options ? boot.kernelModules) {
+      boot = {
+        kernelParams = ["acpi_enforce_resources=lax"];
+        extraModulePackages = with config.boot.kernelPackages; [liquidtux it87];
+        kernelModules = ["v4l2loopback" "it87"];
+        extraModprobeConfig = lib.mkIf (config.mods.fancontrol.forceId != null) ''
+          options it87 ${config.mods.fancontrol.forceId}
+        '';
+      };
+    })
+  );
+}