2·
1 year agoMiX file explorer for android does this. It’s free. Not sure if it’s open source though, does anyone know?
It does use open source libraries.
Latest version is 6.64.3 beta.
https://forum.xda-developers.com/t/mixplorer-q-a-and-faq-user-manual.3308582/
“MiXplorer (Mix of Explorers) is a fast, smooth, beautiful, reliable and fully-featured file manager with a simple and intuitive user interface.” created by XDA member and Recognized Developer @HootanParsa
Depends on what “running the world” means. That needs clarification.