What were your takeaways from this game jam? I thought I performed pretty bad, couldn't really implement the features I wanted.
A good habit I learned in other jams was to always set up a project in my current tools, and try out a web export/itch.io upload a couple days before the jam, just with a stupid sample project, to make sure web, sound, keyboard and mouse all work.
Game tools (and browsers!) change so often, there always seems to be some new wrinkle web export, whether it's because you've picked up some new tools since last time or because some update moved things you need to care about around.
I learned it trying to make a löve2d project work in a browser a few years ago, but it's a thing i've always found a little tricky, and it's one of the things you can get out of the way before the clock starts.
