System: Rename system/modules to system/systemmodules

system/systemmodules/bootloader/default.nix

@@ -0,0 +1,51 @@
+{
+  pkgs,
+  config,
+  lib,
+  mylib,
+  ...
+}: let
+  inherit (config.modules) bootloader;
+in {
+  options.modules.bootloader = import ./options.nix {inherit lib mylib;};
+
+  config = lib.mkIf bootloader.enable (lib.mkMerge [
+    {
+      boot.loader = {
+        timeout = 10;
+        efi.canTouchEfiVariables = true;
+        efi.efiSysMountPoint = bootloader.systemd-boot.bootDevice;
+      };
+    }
+    (lib.mkIf (bootloader.loader == "systemd-boot") {
+      boot.loader.systemd-boot = {
+        enable = true;
+        configurationLimit = 5;
+        editor = false;
+        consoleMode = "max";
+      };
+    })
+    (lib.mkIf (bootloader.loader == "grub") {
+      boot.loader.grub = {
+        enable = true;
+        useOSProber = true;
+        device = bootloader.grub.bootDevice;
+      };
+    })
+    (lib.mkIf (bootloader.loader == "lanzaboote") {
+      environment.systemPackages = with pkgs; [
+        sbctl
+      ];
+
+      # Lanzaboote replaces systemd-boot
+      boot.loader.systemd-boot.enable = lib.mkForce false;
+
+      boot.lanzaboote = {
+        enable = true;
+
+        # WARN: Make sure to persist this if using impermanence!
+        pkiBundle = "/var/lib/sbctl";
+      };
+    })
+  ]);
+}

system/systemmodules/bootloader/options.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  mylib,
+  ...
+}: {
+  enable = lib.mkEnableOption "Enable boot loader configuration";
+
+  loader = lib.mkOption {
+    type = lib.types.enum [
+      "grub"
+      "systemd-boot"
+      "lanzaboote"
+    ];
+    description = "What boot loader to use";
+    example = "systemd-boot";
+    default = "systemd-boot";
+  };
+
+  systemd-boot.bootDevice = lib.mkOption {
+    type = lib.types.str;
+    description = "The path to the boot partition";
+    example = "/boot/efi";
+    default = "/boot/efi";
+  };
+
+  grub.bootDevice = lib.mkOption {
+    type = lib.types.str;
+    description = "The path to the boot partition";
+    example = "/dev/sda";
+    default = "/dev/sda";
+  };
+}