Complex sentence: F-Droid was founded by Ciaran Gultniek in 2010, based in Aptoide source code, and is now run by the English non-profit F-Droid Limited.
Split into simpler sentences: F-Droid was founded by Ciaran Gultnieks in 2010. The client was forked from Aptoide's source code and now the project is run by the English non-profit F-Droid Limited.