I'm going to try to avoid the common problem of "dependency hell" that plagues a lot of JS projects. The idea will be the front end will be very bare-bones. Nothing fancy; just the basics to have a functional website:
Implement all features in HTML if at all possible
If HTML won't work, do it in CSS instead
And finally, barring that, I'll use JavaScript as the final fallback.
Lit is just the right balance of keeping it simple while providing useful functionality.