Great job, that's looking very nice and polished already! Are you also planning to introduce a SaaS version of it?
No plans, cloud deployment platforms like Railway can take of it
For a project like this, a hosted version might be a nice idea if you eventually want to do something else than putting your free time into support and maintenance. And many users will appreciate that the hosted version takes care of DB migration and backups for them.
A hosted version need not necessarily target maximum money making. You could run it as a nonprofit whose goal is to ensure that the open-source project works well and lives long.