I have moved from inuh.net, which was giving me many problems, to hachyderm.io. I probably screwed up the migration - I know I'm missing some of the people I followed, for example - but let's hope this is a healthier site. The migration itself hit a rate limit almost instantly, but I presume things will settle down.
Meanwhile, I would really like to flip to light backgrounds. Dark mode isn't good for old eyes. But I can't find the setting in the web interface.