When I learned about Webassembly, stellarium was high on the list of programs I thought would be nice if ported to the web. Like many people, I enjoy geeking about space and astronomy from times to times, but not enough to bother installing a dedicated software or keeping it up to date. Call me lazy if you want, but I'm sure there are many people like me. Now I know if I want to look at the sky on my computer, it's just one url in my web browser. Thanks.
A port for Celestia would be nice too.