I'm writing a book with technical advice, but I don't have in-depth documentation about how it's actually done (mostly because I still haven't figured it out completely, and also my implementation is kind of buggy anyway).
Discussion
Ok. Maby I have to also start to write some longform articles to figure it out and hopefully find the time to write some python program (since I do not really know an other multiplatform language to code) to create my own client and test concepts.