diff --git a/home/apps/calibre.nix b/home/apps/calibre.nix
index dca9687..fb4116d 100644
--- a/home/apps/calibre.nix
+++ b/home/apps/calibre.nix
@@ -1,3 +1,8 @@
-{pkgs, ...}: {
-  home.packages = [pkgs.calibre];
+{
+  pkgs,
+  device,
+  lib,
+  ...
+}: {
+  home.packages = lib.optionals (device.is "ryu") [pkgs.calibre];
 }