diff --git a/private_dot_config/karabiner.edn b/private_dot_config/karabiner.edn
index 11d2a0c..db7b92e 100644
--- a/private_dot_config/karabiner.edn
+++ b/private_dot_config/karabiner.edn
@@ -1,5 +1,6 @@
 { :devices {:adv2    [{:vendor_id 10730 :product_id 258}]
-            :pedals  [{:vendor_id 10730 :product_id 256}]}
+            :pedals  [{:vendor_id 10730 :product_id 256}]
+            :volumer [{:vendor_id 16701 :product_id 21818 :location_id 51380224}]}
   :profiles {:Default {:default true
                        :alone   350
                        :delay   500
@@ -16,6 +17,7 @@
                  :copilot ["^com\\.apple\\.Safari\\.WebApp\\.8693C89E-9B7E-4E3D-A8E1-C2EB22E28784$"]
                  :webui ["^com\\.apple\\.Safari\\.WebApp\\.2455BCD9-4CA6-415F-80D8-2FA98F05FC97$"]
                  :openai ["^com\\.Unite\\.openai$"]
+                 :chatgpt["^com.openai.chat$"]
                  :librechat ["^com\\.Unite\\.LibreChat$"]
                  :claude ["^com\\.Unite\\.Claude$"]
                  :hepta ["^app.projectmeta.projectmeta$"]
@@ -46,6 +48,9 @@
                                                 :afterup :en}]
                             ]}
 
+        {:des "volumer experiment"
+         :rules [:volumer [:volume_up :a nil]]}
+
          {:des "Backslash<->Open_Bracket on Advantage2"
           :rules [:adv2 [:open_bracket :!R5 [:ru :keykey]]
                         [:##open_bracket :!R8 [:ru :keykey]]
@@ -98,7 +103,7 @@
                   [:t [[:open "/Applications/kitty.app"] {:input :en}] :!kitty]
                   [:t [:!Ct {:input :en}] :kitty]
                   [:r [[:open "/Applications/WezTerm.app"] {:input :en}] :!wezterm]
-                  [:r [:!Ch :wezterm]
+                  [:r [:!Ct {:input :en}] :wezterm]
                   [:a [[:open "/Applications/Arc.app"] {:input :en}]]
                   [:g [:open "/Users/anton/Applications/Gemini.app"] :!gemini]
                   [:g :!Ch :gemini]
@@ -112,6 +117,8 @@
                   [:h :!Ch :hepta]
                   [:w [:open "/Applications/Setia Wiki.app"] :!wiki]
                   [:w :!Cw :wiki]
+                  [:open_bracket [:open "/Applications/ChatGPT.app"] :!chatgpt]
+                  [:open_bracket :!Cw :chatgpt]
                   [:o [:open "/Applications/openai.app"] :!openai]
                   [:o :!Ch :openai]
                   [:p [:open "/Users/anton/Applications/webui.app"] :!webui]