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by xuki 1540 days ago
You might find this interesting.

https://en.wikipedia.org/wiki/Musical.ly

> Musical.ly Inc. was founded by long time friends Alex Zhu and Luyu Yang in Shanghai, China.[7][8] Before launching Musical.ly, Zhu and Yang teamed up to build an education social network app, through which users could both teach and learn different subjects through short-form videos (3–5 minutes long).