@johnbull.social You’re talking about @dansup.bsky.social and he’s not only made Pixelfed into the defacto open-source alternative to Instagram, he’s tackling TikTok/Reels/Shorts with Loops.video.
Pixelfed will even federate here via @ap.brid.gy
E.g. my account @starrwulfe.pixelfed.social.ap.brid.gy