First, I'm using a branch named "heap" for all my tests.
I'll merge as soon as I resolved perf issues (it should be ok very soon™️!)
Then I'll write a robust readme for deploying.
I can also make "Deploy on railway" button into the readme when it's ready.
I know they offer free credits for each deployments if the project is open source and has 100+ stars on github. It could be very great for me 😅
Anyway, I can send you a batch env example in DM, but it can change fast