add gamemode config

.config/gamemode.ini.cgt

@@ -0,0 +1,13 @@
+[general]
+; Default is 5 seconds. Completely nuts.
+reaper_freq=30
+
+; renice to -5
+renice=5
+
+; I don't use screensavers
+inhibit_screensaver=0
+
+[custom]
+start=<% opt.gamemode.on_start %>
+end=<% opt.gamemode.on_stop %>

cg_opts.lua

@@ -32,4 +32,9 @@ opts.commands = {
     notification_daemon = "wired",
 }
 
+opts.gamemode = {
+    on_start = "notify-send 'Gamemode' 'Gamemode Active'",
+    on_stop = "notify-send 'Gamemode' 'Gamemode Inactive'",
+}
+
 return opts