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                 description
     19:00-20:00 nother event
 ```
+
+## Config file
+
+There is a config file, in toml format in your config folder:
+
+* Lin: /home/alice/.config/almanac.toml
+* Win: C:\Users\Alice\AppData\Roaming\almanac.toml
+* Mac: /Users/Alice/Library/Preferences/almanac.toml
+
+The format is:
+```
+# a list of icals to be used if none is provided to the program
+cals = ["/home/foo/mycal.ics", "/tmp/anothercal.ics"]
+```