the most important thing is a workflow guide. There is no real workflow guide out there for roam or obsidian. either it’s not a zettelkasten or it’s terrible ineffective.
The book “how to take smart notes” is really hyped but actually there is no manual on how to take these smart notes. Clearly it depends on what you want to reach and which software. Backlinking is an old idea and it’s now turning famous. It would be great if you could try to show an example workflow. With Literature Notes, Permanent Notes, Reference Notes. There are some discussions in the nerdy Zettelkasten Community. Like “Folgezettel” (following note) yes or no. Dont care about that 
I love you for doing this!
Currently I am working on a perfect workflow for getting my notes, which I made while reading, listening, thinking etc into obsidian.
After your manual I would try to write a Workflow before Obsidian, then we can connect 