I've published them at https://dev.honeypot.net/kirk/keyboard-maestro if you're interested.

Edit: That also turned into a new blog post at https://honeypot.net/post/making-notes-looks-like-markdown-e... . Thanks for the nudge! I've been trying to get into a cadence, but hadn't had anything to talk about recently.

Welp, I did it. I can share the macro if needed, but it ended up exactly as I described it. I also made macros for #, ##, ###, and --- while I was at it.