ActivityPub.Academy was where many of us checked whether our activities actually arrived anywhere. Thanks @crepels for running it so well for so long.
We're carrying that forward. @z9mb1, @2chanhaeng and I maintain Fedify, and with @gaebalgom the four of us are building @drfed, a web platform for developing and debugging #ActivityPub implementations, with NLnet NGI0 Commons Fund support.
Fediverse developers, we hope it earns a place in your toolkit: https://drfed.org/.
