Similar setups (Rocket and Actix instead of Axum, Tera instead of Askama, Diesel instead of SQLx) and overall experience (incredibly cheap, reliable, and since these projects have been running a long time, amazingly easy to return to the codebases after months/years and make changes with a high level of confidence).
I distinctly remember how happy I felt the first time I realized that I had enough paying subscribers to offset the cost of the running the service!
[1]: https://notado.app
[2]: it had a decent amount of HN discussion last week - https://news.ycombinator.com/item?id=41697228
[3]: https://kulli.sh