thank you for great work preparing ecosystem for emulating old be-loving machines! I appreciate huge list of available official cores from your homepage and auto update script, however I do believe there exists much more created by other people. I do understand you don't want to "taint" your github and list with cores you don't know much about. Unfortunately such cores are not visible on first glance and not easy to find.
But if you setup some kind of unofficial list of cores where you put other people work on request and after some review from yourself it could be beneficial for all. Furthermore if these developers follow your folder structure you could make it optional part of update script (disabled by default?). This could make users and non officials core programmers happy
What do you think?
Regards,
Petr