I've seen this mentions in a few threads. How would a "Handmade" game jam work? Obviously no engines and some limited time. One person only. But I'm not sure about libraries. Would it make sense to do everything from scratch, or only use source code?
I'm not sure that "no engines" would be a rule. Perhaps it would just be a jam where completeness is a major factor in the goal. Making something that really works well rather than a sloppily thrown-together "game."
(Just my opinion, which may be unpopular in this case, and let's face it, most cases)