Oof. Thanks for flagging! It looks like the HN traffic spike (or a config error on my end) tripped the payment gateway safety.

I've temporarily disabled payments to be safe. You can drop your email on the waitlist https://forms.gle/HyPpz77T6yARoZVn7 and I'll send a discount code once I fix the plumbing. Sorry about that and thanks for notifying!