https://www.techradar.com/news/windows-30-file-manager-on-windows-10-triggers-nostalgia-hard

In advance of an already-divisive major Windows 10 update, Microsoft has released a fun, little open-source Easter egg for its longtime fans: the Windows 3.0 File Manager.

Available now in its full source code on GitHub, anyone can access this tool and manage their files the old-fashioned way. That is, with file trees and pixelated iconography.