A couple of things. All unfinished (of course).
First idea, a website that combines Reddit (or HN) and Discord. The goal is to create ephemeral, real-time communities (like this thread). I find discord too exclusionary to bring strangers together. And reddit is not dynamic enough to encourage relationship formation. With this site, you post a thread, people start chatting, there's a simple interface for groups of people to break off the public chat and go into a private chat or into a webrtc call. Once the thread loses momentum the chat room sort of dies. And people move onto the next thread.
Backend is written in Go. Frontend will likely be Elm. Redis for pubsub. Postgres for crud.
Second idea, an Elm-like language for building linux applications (and crucially linux-phone applications). I'd really like to de-throne apple and google from the smartphone market. I think a dead simple language like Elm + a super simple, standardized dev environment + no weird configuration or new conventions to learn would be a killer feature for the linux platform. Something like Elm-UI would attract a wave of new developers to Linux.
Unfortunately, I've never made a programming language before. So I'm working through "Crafting Interpreters" to get started.
Third, possibly finding a SWE in Miami and starting a software consultancy partnership. Could be fun and lucrative but I've never been on the business side before. So likely this idea will stay half-baked for a lot longer.