I wrote up a blog post outlining the steps I took to migrate a custom Mastodon fork from heroku to fly: jesseplusplus.com/blog/migrating…

I've been switched over for nearly a month now and am quite happy with the move. I just ran out of hobby plan credits and will officially start paying this month. Looking at the costs from last month, I think I'll end up paying about 1/3 the cost of heroku for similar perf

I do see a bit more downtime and API errors when doing deployments with fly, but heroku has had more than a decade to become as mature as it is 😄