I don't know much about it but perhaps https://itch.io/docs/itch/using/sandbox.html https://itch.io/docs/itch/using/sandbox.html would be an option for them?

I don't know much about it but perhaps https://itch.io/docs/itch/using/sandbox.html https://itch.io/docs/itch/using/sandbox.html would be an option for them? It's an end user option in the itch.io app.