Task: Text Simplification
Input (English): in april 2000 , minix became free / open source software under a permissive free software licence , but by this time other operating systems had surpassed its capabilities , and it remained primarily an operating system for students and hobbyists.
Output (English): minix became a free software under a permissive free software license in april 2000 , but it had already been surpassed by other operating systems.