I use VScodium with some plugins. But writing in any editor and running the typst executable with the “watch” argument is also an option. That way as soon as you overwrite the source file a new PDF is generated. In that case I use Okular which auto refreshes when the open document changes.
It hasn’t affected my ability to use a normal keyboard. Using my laptop to type occasionally probably helps with this.
Can’t help you, I stuck with QWERTY
My favorite feature of my ergo keyboard is the fact that it is split, so I could see the appeal of a split but otherwise normal keyboard. But, I would recommend sticking with the Moonlander. It took me 2 weeks until I was comfortable typing after I switched. Not fast mind you, just comfortable. Then maybe another month until I didn’t have to look down for special keys. Definitely a time investment, but worth it in my opinion.
I’ve got a Keyboardio that has the main layer change key as one that you press with your palm. I’m glad it’s there, thumb keys are too precious to waste on that.
It took me about two weeks to get fully comfortable going from a normal keyboard to a Keyboardio. It was a long two weeks but I’m really glad I did it. And so are my fingers.