Really appreciate the detailed feedback.

You're right about the Mac shortcuts - Cmd should replace Ctrl on macOS. That's a bug, I'll fix it.

As for the frontmatter - Jayjader is correct, it's standard markdown frontmatter. It's how HelixNotes tracks metadata without using a database or sidecar files. Moving it to the bottom would break compatibility with every other markdown tool that reads frontmatter. But I understand it's not pretty in a plain preview - that's the tradeoff for keeping everything in plain .md files with no hidden database.

Glad you're enjoying it. Keep the feedback coming, this is exactly what helps improve the app.