For another, the developer story for contributing changes to any of this stuff is way too convoluted (source spread over several locations, good luck finding which one to use, and how to build it, etc), and documentation is basically nonexistent outside of the heads of the people who have been working on it for a long time. Plus a few pieces (like SFOS platform SDK images) are internal only, which are kind of annoying. I'd really like to see some focus on making 'getting started' on platform hacking a lot easier and more accessible.