commitfest app: New process discussion & request for reviews

I started a thread on -hackers to figure out a new process for getting
changes into the commitfest app. If anyone here is interested in that,
or could provide some reviews, that would be very much appreciated.
See that thread for details (and please respond there):
https://www.postgresql.org/message-id/flat/CAGECzQTeEbHvat8Sm%3Dt-7eLWMws4P%3DCeiXNix%3DqTeTtMkGwbRQ%40mail.gmail.com