@birb are you able to follow https://mobilizon.it/events/going/2ftngiT3pp9rYU92FKK2Ru/atom ? It's actually supposed to be from an ActivityPub aware software but for some reason it doesn't look like it allows following "profiles" ( @strk@mobilizon.it ) - maybe @mobilizon@framapiaf.org or @mobilizon@mastodon.uno can help about that too