This is a wonderful idea. The way you structured the Grant Program is super efficient and transparent.
I also salute the potential amount destined to the Program. This demonstrates a powerful engagement from the Aave protocol to empower external builders. This move worth thousands words.
While we are detailing solutions to promote external contributions to the Aave ecosystem, I would like to mention the Aave referral program that had been stop after migration from v1 to v2. Some projects will not get a grant from Aave while they already provide value to the ecosystem. I think they should be rewarded for that.