Hi and welcome! You aren't forced to start a blog, but it would be great because that way everyone can see your progress! It's rather easy to do one here in itch.io. Just go to the community section of this game jam and start a new thread, that's it! There are a few already created that should give you an idea of what to do.

You are on our official VCGDC Speed Game Jam testimony request list! Please take a minute to contribute a short video clip here.  Deadline: August 15th. https://flipgrid.com/334813e8