Could I ask you for some things though? You question would better fit the, well, Questions category. (EDIT: I moved it there because I think you probably don’t have the permission to move your topic yourself.) In that category, topics should best have a full question as a title, as per the question guidelines :
Good titles are questions you would ask your friend about Typst.
Also, since you’re basically asking two separate questions (math typesetting and the editor experience of doing Unicode input) it might later not be easy to find both answers in this thread – which would be a shame because I find both questions very interesting. Could you split off the second question into a separate topic, with its own fitting title? That would be very helpful 