If you try to play it from the source code, as I am using godot-rust there is a little bit of things involved, you need Rust installed (with rustup), build for your platform (with cargo build --release), add your platform to the godot/rust.gdextension file and export the game like any other Godot games (all this is explained in the godot-rust book).
Sometime after the jam, I will update the game and will definitely export for web. I see you are in the GWJ Discord server, I will make a post there about the update and let you know.