Is there an established way that people advertise their open source projects to developers for help? I know that GitHub has exploration features but when I last used them it felt like looking for a needle in a haystack.
Not that I know of. Especially for C. I resorted to re-post to reddit when I reach a subjective milestone but the returns are slim. Also I hear people may dislike such an auto-promoting endeavour...
First time I posted an early naive version of my string lib, the thread became a deluge of 500+ reactions and constructive advice. Subsequent submissions with a much better work got me depressed.