Little write about what has happened.
I used to live with my ex, then stuff happened and I temporarily moved to my mom's place, but left the instance server there.
Then, the landlord there was changing the lightbulb because water soaked in from neighbours' flat and power went down and since the instance was down.
I moved to new place, with @ash, but did not have the spoons to fix it. And I needed to write a NAT thingee so IPv4-only hosts can access this instance, which I found out can be very easily done with Nginx, so I managed to cobble it together within like an hour (including firewall configs).
Tried to re-use old domain, but instance actor keys I have lost so, new domain, new place. And actually new server computer (you can see the specs on suika.host.yuri.diy but it is IPv6-only site).
edit: IPv6-only because it is made to represent the host in DNS, and I just happened to put there a little website.