perf: Home-manager to module

feat: Optionise config

host/Rias/modules/grub.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }: let
+   theme = pkgs.fetchFromGitHub {
+    owner = "OliveThePuffin";
+    repo = "yorha-grub-theme";
+    rev = "4d9cd37baf56c4f5510cc4ff61be278f11077c81";
+    hash = "sha256-XVzYDwJM7Q9DvdF4ZOqayjiYpasUeMhAWWcXtnhJ0WQ=";
+   };
+in {
+  boot.loader.grub = {
+    gfxmodeEfi = "3440x1440";
+    theme = "${theme}/yorha-2560x1440";
+  };
+}

host/Rias/modules/syncthing.nix

@@ -0,0 +1,38 @@
+{ config, ... }: {
+  services.syncthing = {
+    enable = true;
+    openDefaultPorts = true;
+
+    user = "sweetbread";
+    dataDir = "/home/sweetbread/.config/syncthing";
+
+    key = config.sops.secrets.syncthing_key.path;
+    cert = config.sops.secrets.syncthing_cert.path;
+
+    settings = {
+      devices = {
+        Akeno = { id = "YVFVE2M-GSCKJBJ-AMC5JM3-AOMCVNP-RLFAWEZ-35VP4HP-DGP5QD2-6QWEZQW"; };
+        Koneko = { id = "PJFWQRY-ZFUBGDR-NV7KVBL-UBDQ4HT-KPTYP34-MUDFPJU-4EZUHTT-ZLYRMAB"; };
+      };
+
+      folders = {
+        "Books" = {
+          path = "/mnt/D/SyncThing/Books";
+          devices = [ "Akeno" "Koneko" ];
+        };
+
+        ".RPI" = {
+          path = "/mnt/D/SyncThing/.RPI";
+          devices = [ "Akeno" "Koneko" ];
+        };
+
+        "Music" = {
+          path = "/home/sweetbread/Music";
+          devices = [ "Akeno" "Koneko" ];
+        };
+      };
+    };
+  };
+
+  systemd.services.syncthing.environment.STNODEFAULTFOLDER = "true";
+}