<a href="https://twitter.com/bakueikozo/status/1413412243346051079" rel="nofollow noreferrer">https://twitter.com/bakueikozo/status/1413412243346051079</a><p>The author of this blog points out that the code used in switchbot's products contains GPL-licensed code, and indicates that he has not heard from Switchbot in two years when he asked them to provide the source code