diff --git a/MODES b/MODES
index a8a55d8..94285ba 100644
--- a/MODES
+++ b/MODES
@@ -11,21 +11,15 @@ inherit.
 
 2. Where do they come from?
 
-All modes are loaded and installed in application.py. It would be nice if there
-was a configuration file where you could add your own modes, but there isn't.
-Loading a module involves the following (in Application.__init__):
+Modes are loaded and installed by application.py, or by $HOME/.pmc/conf, which
+is sourced by application.py. To install a mode, import its class from the
+package in which it resides, and call install() on the class, passing the
+application as the only argument. Example:
 
-    
-    self.modes['foo'] = package.Foo
+    import mymode
+    mymode.ModeClass.install(self)
 
-    # ...
-
-    self.mode_paths['/some/full/path']   = 'foo'
-    self.mode_basenames['some-filename'] = 'foo'
-    self.mode_extensions['.foo']         = 'foo'
-    self.mode_detection['foo']           = 'foo'
-
-The last is for detecting scripts using the "#!/usr/bin/foo" syntax.
+This code can be run in application.py's constructor, or in $HOME/.pmc/conf.
 
 3. How do they work?