Modularized boot process

modules/boot/clean-tmp.nix

@@ -0,0 +1,14 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.modules.clean-tmp;
+in {
+  options.modules.clean-tmp = {
+    enable = mkEnableOption "clean-tmp";
+  };
+
+  config = mkIf cfg.enable {
+    boot.tmp.cleanOnBoot = true;
+  };
+}

modules/boot/silent-boot.nix

@@ -0,0 +1,31 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.modules.silent-boot;
+in {
+  options.modules.silent-boot = {
+    enable = mkEnableOption "silent-boot";
+  };
+
+  config = mkIf cfg.enable {
+    boot = {
+        loader.timeout = 0;
+    };
+
+    consoleLogLevel = 0;
+    initrd.verbose = false;
+    initrd.checkJournalingFS = false;
+
+    kernelParams = [
+      "quiet"
+      "boot.shell_on_fail"
+      "loglevel=3"
+      "rd.systemd.show_status=false"
+      "rd.udev.log_level=3"
+      "udev.log_priority=3"
+      "video=efifb:nobgrt"
+      "bgrt_disable"
+    ];
+  };
+}

modules/boot/systemd-boot.nix

@@ -0,0 +1,18 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.modules.systemd-boot;
+in {
+  options.modules.systemd-boot = {
+    enable = mkEnableOption "systemd-boot";
+  };
+
+  config = mkIf cfg.enable {
+    boot.loader = {
+      systemd-boot.enable = true;
+      systemd-boot.editor = false;
+      efi.canTouchEfiVariables = true;
+    };
+  };
+}