What you get depends on where you paid. Supporters on SubscribeStar and Patreon get early access and a bunch of other stuff. I used to be able to do that on Itch, but due to Collective Shout and the payment processors being bullied, I had to remove the "0 or Donate" option just to get reindexed on Itch. So I can't do early access on Itch anymore. If you paid here, I'm sorry, but there's no way I could have foreseen a bunch of uppity prudes ruining everything for us.
However, if you can get at me on Discord, I can help ya out. Send me a friend request or a message request, and let me know the email you use on Itch, and once I've verified your purchase, I'll send you some stuff :)