Disclaimer: I like Railway.

Heroku VMs had the kitchen sink, and I miss that with Railway. A pretty standard Phoenix app with Phoenix’s built-in auth doesn’t build and the user is presented with build errors about nixpacks. Now there’s a good deal I have to learn just to get bcrypt to build.

If anything this saves a step. For me, git push heroku master was more often git push && git push heroku master at least when starting out.