I’ve managed to get it working, using the provided Dockerfile and docker-compose.yml instead of my own.
I noticed that a faulty install only shows 3 or 4 items, while a truly successful one shows like 10. So it’s easy to detect when it’s successful, and thus does not go back to the installation. This means that something goes wrong during step 3 or 4, and then skips the rest. What this step does, should give insights about what is failing.
It could be that everybody has different problems here. So please share how many steps were shown.