I'll add some more pointless two cents. I use, and love, Obsidian for the following reasons. I'm a research engineer, and it supports latex equations, markdown formatting, pasting images from the clipboard, and syntax highlighting. It is also beautiful from the get go (as is your app); the line spacing is just-right, the colour scheme is pleasant, the editor and preview mode typefaces are both delightful. But, I do use it as a full-fledged note taking app.

In your shoes (and contrary to the spirit of the thread, I admit), I would definitely spend time getting to know to whom you're targetting this app. Perhaps yourself, which is fair. But, for instance, it wouldn't work for someone like me. Still, I like what you've done here and I wish you all the best!!