Obsidian is nearly perfect. My biggest gripe is the link format it uses, even when using Markdown style, doesn't use the full relative path to files, just the name of the file. So you can't click them in say, VS Codium and have them work.

My perfect tool would be something like Obsidian but uses the GitHub Pages approach while not being tied to GitHub. (The GitHub Pages gem fails in a few ways if the repository doesn't have a GitHub remote.)