Lovely art style you have here! Though I am not sure what this has to do with the jam's theme. Exporting for web in Godot would probably also attract more people to try out your game :)
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Ah I see! I didn't get that at first but in retrospect it makes a lot of sense.
I made my game in Godot 4.2 and didn't have any trouble exporting to web with default settings. So maybe you could update the project to Godot 4.2 and try again :) It would be a shame if only a few people tried out what you worked so hard to create.