Hi I don't know much about deploying, I'm still a newbie
There is an option to deploy a template, use it to deploy a Django template
So normally I'd deploy a Django template which railway also create a repository(if you linked your Github), Postgresql database for that template and so clone the repo to your machine and start working on the repo.
Make sure you install railway CLI on your computer
so you will need to login on CLI using
"railway login --browserless'
Link your production environment
"railway link" and select the environment
use "railway run ...." to run django commands
Like
railway run python manage.py runserver