diff --git a/modules/rosenthal/utils/transformations.scm b/modules/rosenthal/utils/transformations.scm
index e84b3a2..d02a79f 100644
--- a/modules/rosenthal/utils/transformations.scm
+++ b/modules/rosenthal/utils/transformations.scm
@@ -6,6 +6,7 @@
   #:use-module (srfi srfi-1)
   ;; Utilities
   #:use-module (guix channels)
+  #:use-module (guix deprecation)
   #:use-module (guix gexp)
   #:use-module (guix packages)
   #:use-module (guix utils)
@@ -21,52 +22,52 @@
   #:export (rosenthal-transformation-guix
             rosenthal-transformation-zfs))
 
+(define-deprecated rosenthal-transformation-guix
+  #f
+  (lambda* (#:key (substitutes? #t) (channel? #t) (guix-source? #f))
+    (define %rosenthal-signing-keys
+      (list (plain-file "gokuraku.pub"
+              "(public-key (ecc (curve Ed25519) (q #374EC58F5F2EC0412431723AF2D527AD626B049D657B5633AAAEBC694F3E33F9#)))")
+            (plain-file "nuporta.pub"
+              "(public-key (ecc (curve Ed25519) (q #552F670D5005D7EB6ACF05284A1066E52156B51D75DE3EBD3030CD046675D543#)))")))
 
-(define* (rosenthal-transformation-guix #:key (substitutes? #t)
-                                        (channel? #t)
-                                        (guix-source? #f))
-  (define %rosenthal-signing-keys
-    (list (plain-file "gokuraku.pub"
-            "(public-key (ecc (curve Ed25519) (q #374EC58F5F2EC0412431723AF2D527AD626B049D657B5633AAAEBC694F3E33F9#)))")
-          (plain-file "nuporta.pub"
-            "(public-key (ecc (curve Ed25519) (q #552F670D5005D7EB6ACF05284A1066E52156B51D75DE3EBD3030CD046675D543#)))")))
+    (define %rosenthal-channel
+      (channel
+        (name 'rosenthal)
+        (url "https://codeberg.org/hako/rosenthal.git")
+        (branch "trunk")
+        (introduction
+         (make-channel-introduction
+          "7677db76330121a901604dfbad19077893865f35"
+          (openpgp-fingerprint
+           "13E7 6CD6 E649 C28C 3385  4DF5 5E5A A665 6149 17F7")))))
 
-  (define %rosenthal-channel
-    (channel
-      (name 'rosenthal)
-      (url "https://codeberg.org/hako/rosenthal.git")
-      (branch "trunk")
-      (introduction
-       (make-channel-introduction
-        "7677db76330121a901604dfbad19077893865f35"
-        (openpgp-fingerprint
-         "13E7 6CD6 E649 C28C 3385  4DF5 5E5A A665 6149 17F7")))))
+    (lambda (os)
+      (operating-system
+        (inherit os)
+        (services
+         (cons* (simple-service 'guix-moe guix-service-type
+                  (guix-extension
+                    (authorized-keys %rosenthal-signing-keys)
+                    (substitute-urls '("https://cache-cdn.guix.moe"))))
 
-  (lambda (os)
-    (operating-system
-      (inherit os)
-      (services
-       (cons* (simple-service 'guix-moe guix-service-type
-                (guix-extension
-                  (authorized-keys %rosenthal-signing-keys)
-                  (substitute-urls '("https://cache-cdn.guix.moe"))))
+                (modify-services (operating-system-user-services os)
+                  (guix-service-type
+                   config => (guix-configuration
+                               (inherit config)
+                               (channels
+                                (let ((configured-channels
+                                       (guix-configuration-channels config)))
+                                  (if channel?
+                                      (cons %rosenthal-channel
+                                            (or configured-channels
+                                                %default-channels))
+                                      configured-channels)))
+                               (guix
+                                (if guix-source?
+                                    (guix-for-channels channels)
+                                    (guix-configuration-guix config))))))))))))
 
-              (modify-services (operating-system-user-services os)
-                (guix-service-type
-                 config => (guix-configuration
-                             (inherit config)
-                             (channels
-                              (let ((configured-channels
-                                     (guix-configuration-channels config)))
-                                (if channel?
-                                    (cons %rosenthal-channel
-                                          (or configured-channels
-                                              %default-channels))
-                                    configured-channels)))
-                             (guix
-                              (if guix-source?
-                                  (guix-for-channels channels)
-                                  (guix-configuration-guix config)))))))))))
 
 ;; NOTE: Booting from ZFS requires patching Guix.
 (define* (rosenthal-transformation-zfs #:key boot? (config (zfs-configuration)))