Trying to host basic rails app

Question

Yo I'm trying to use railway to host my rails app. I keep getting this error though:

```ArgumentError: Missing `secret_key_base` for 'production' environment, set this string with `bin/rails credentials:edit` (ArgumentError)```

So locally when I use `bin/rails credentials:edit`, the file looks something like this:
```yaml
# aws:
#   access_key_id: 123
#   secret_access_key: 345

# Used as the base secret for all MessageVerifiers in Rails, including the one protecting cookies.

secret_key_base: some stuff that I've redacted

```

So what's going wrong?