I'm a solo dev and my main skill is programming in GDScript. The most fun I've had and engaged I've been during a game jam is when I've been able to work with a team (even if it's just one other person). Feel free to hit me up if you're looking for a programmer/gameplay engineer for this jam! I need a fun game jam in my life right about now lol

Best way to find others is join the Discord: https://discord.com/invite/godotwildjam

There is a channel there called #introduction and #team-up where people look for others to work together.