When Microsoft slipped the first public preview of the Windows Subsystem for Linux (WSL) into the Windows 10 Anniversary Update in August 2016, it mostly appeared to be a niche convenience aimed at developers who missed Bash and a Linux terminal. Few outside the Insider community guessed it would grow into a fully fledged, GPU-accelerated, GUI-capable Linux environment, maintained and delivered by Windows Updates and the Microsoft Store. Yet, nearly a decade later, WSL has grown and flourished into something more, and is arguably one of the biggest features added to Windows in a long time.