This is really fantastic. I've played around with Obsidian periodically, but it's difficult to groom and maintain. This approach seems more manageable.
I'd like to start using this, but at the same time you likely won't be maintaining it.
Final point: we really need a memex/knowledge graph ecosystem with easily interoperable components (e.g. browser extensions, book highlighting, etc that can all feed into one of many viewers).
I actually feel the opposite about Obsidian: finally a note app that feels native with powerful keyboard/action shortcuts, vim navigation and great categorization (graphs, references, tags).
We use Notion (Electron) at work and it has been extremely painful to navigate, organize and maintain. I think electron (OP project as well) is not the right choice as it's just awful for native interactions which is really important for note taking app.
I'd like to start using this, but at the same time you likely won't be maintaining it.
Final point: we really need a memex/knowledge graph ecosystem with easily interoperable components (e.g. browser extensions, book highlighting, etc that can all feed into one of many viewers).