Allow me to suggest a form where people can leave their email to get updates or a newsletter from you! Brevio is the kind of thing that a lot of people look for, and value. The fact you're not charging and it all runs locally earns you a lot of trust and goodwill.

I'm not suggesting monetising your audience or starting a substack, but you never know when having a list of people who are interested in the things you build could come in handy.

I wouldn't even think you'd need to send a confirmation email: just leave it there and see who fills it in.