Turn feature off/on programmatically?

[johnknoop]

We use an IFeatureRepository as a configuration source, with 1 minute cache duration. As of today, whenever we want to turn a feature on or off, we make a change in the database, and this then takes effect after 1 minute (at most).

Now we're thinking of building a GUI for the feature system, so that product owners can turn stuff on/off themselves, without access to the database. One solution would be that the GUI just updates the database, but an even nicer solution would be if ReallySimpleFeatureToggle had an API for turning features on/off, which would immediately update it's cache. Is this possible today? I couldn't find any such information in the readme.