Your comment reminds me the PeerTube situation. Only one developer was needed to create this YouTube alternative.
You can see and comment Lemmy posts from Mastodon.
Well if he could increase the power a little bit in winter and decrease it a little bit in summer that would be better! 😃
Maybe you can find something in this list? https://www.gnu.org/distros/free-distros.en.html
E-mail providers could configure another character for subaddressing, broadly accepted in forms, but they stick to this plus sign sadly.
I think about trying to buy a domain name, and playing with catch-all and ignore rules to avoid spam while creating a custom subaddressing setup on a custom domain. Source: this Mastodon post https://chaos.social/@silmaril/108878671259313909