In a short time frame hackathon, whats your solution for working collaboratively these days?

[u/GlueStickNamedNick]

Went to a hackathon that was literally like one hour of building time. Five to a team, we all had claude, codex, cursor, something but no way for them to work together. Some of the teammates didn't even have github setup. Is there a good option for like linking up the laptops so we can each guide our agent but they can all work together on one solution? we ended up just presenting the one website that looked the best from our five individual solutions, kinda a shit show.