The second and final link leads to the main project overview repository (https://github.com/futurehood/DeCent), from there you can find the DeCent-Core repo (not open-sourced yet) as well as another link to the DeCent Messenger repo and several others that contain code samples.
Please keep in mind that there is a lot to the project, and I'm doing everything myself. If you have anything specific you're looking for, I'd be happy to point the way!
Sounds good, thanks for your patience, I know it's not as dense as more complicated protocol documentation, but there is a lot there to read nonetheless, I appreciate you!
I'm hoping to iterate on the explanation a few more times and make it as concise as possible. I'm planning on doing a video soon too.
I will be open sourcing DeCent-Core shortly, probably sometime next week, after some cleanup and a bit of refactoring from the prototype codebase. I'll make another post here when that happens.