I was just thinking that Markdown doesn't seem like a great fit for Android specifically because of the limited size of the keyboard.

There's third-party keyboards like [CodeBoard](https://play.google.com/store/apps/details?id=com.gazlaws.co...) that makes symbols etc. easier but I'm pretty wary of installing keyboards given the number of permissions they get.

Another idea could be to explore long-press formatting options or a formatting menu on selected text. Still awkward, but perhaps easier to do.