Severin Hacker
@severinhacker
@duolingo co-founder and CTO. 🇨🇭
ID: 22846892
04-03-2009 22:36:07
353 Tweet
10,10K Followers
569 Following
@severinhacker
@duolingo co-founder and CTO. 🇨🇭
ID: 22846892
04-03-2009 22:36:07
353 Tweet
10,10K Followers
569 Following