Comment by mpol

Meta also threatened app makers to start a lawsuit. Whatsapp Plus, Whatsup and Mitakuuluu people stopped on that threat. I don't see a reason why Meta would change their stance on this.

There is now a law from the EU, I think it is the DMA, which could change things for people living in the EU regarding interoperability. I haven't read anything about practical follow-ups yet.

By the way, only releasing source code as a blueprint might be fine, that happened before. I might remember it wrong, but it might be lame, the mp3 encoder.