sodaphish, there are sections related to what you want and not a lot of people posts to them.
1) embedded devices http://nixers.net/forumdisplay.php?fid=19 (7 threads)
2) security http://nixers.net/forumdisplay.php?fid=27 (21 threads)

If you can dig old threads or start new ones in those sections it would be nice.
Also, there might be a reason why those sections don't have many threads, maybe their titles are misleading or something. What do you think?