Alternative for free deployment now that Heroku doesn't free deployment anymore?

[JohannesWiesner]

Hi! Thanks for this wonderful project! Sadly, from 28.11.2022 on, free deployment using Heroku is not possible anymore :(

Starting November 28th, 2022, free Heroku Dynos, free Heroku Postgres, and free Heroku Data for Redis® will no longer be available.
To keep your apps running and retain your data, upgrade to paid resources as soon as possible.

So I wonder if there's an alternative host that I could use for free?