Honest question : Why Mastodon ? I had a single-user instance very soon after discovering the fediverse, but the needed stack to run a Mastodon instance is really insane compared to something like Akkoma / Iceshrimp. I would never use Mastodon for a low number of users, including all the limitations compared to other micro-blogging activitypub compatible services.
Interesting tool ! Indeed, thats quiet shady to give ALL your accounts informations to a closed source app…
And alternativeto has no real alternative, rn, but let’s hope something exists doing the same