Refactored for inheritance

[mhutter]

This PR aims to improve usability by removing boilerplate and making some options (like mount options) configurable on hierarchy levels.

Checklist

• [x] Keep pull requests small so they can be easily reviewed.
• [x] Update the documentation.
• [x] Categorize the PR by setting a good title and adding one of the labels: bug, enhancement, documentation, change, breaking, dependency as they show up in the changelog
• [ ] ~Link this PR to related issues.~

[mhutter]

This is now ready to be merged. It is in use already and should have all bugs ironed out.