We aim to rebuild finance from first principles. Bitcoin is our starting point because it is money that cannot be printed, frozen, or tampered with. Every product we design strives to keep the Bitcoin ethos intact: self-custody, open access, radical transparency, and trust minimization. If a new layer shifts control back to institutions or hides risk behind jargon, we reject it. Our job is to extend Bitcoin outward, not turn it into fiat 2.0.

Zone21 is a crew of Bitcoiners building for other Bitcoiners. Some of us designed Nunchuk, a self-custodial Bitcoin wallet. Years of writing self-custodial code have taught us the difference between security theater and real safety. We apply that lens to every product we review or prototype. You will not find venture-capital pitch decks or token sales here, only engineers, designers and researchers who prefer Proof-of-work to PowerPoint. We publish our findings openly, own our opinions, and invite every fact-check. If we are wrong, show us and we will fix it.