One $42 payment on Stripe. Hosted checkout — no Fieldproof account required. Pays with card, Cash App, Link, US bank debit, Klarna, Afterpay, or Affirm.
Direct link: https://buy.stripe.com/eVq4gA91U3Rr1Yt6z31sQ00
Also: store.3labs.io (Gumroad card) · 42 USDC · Bitcoin.