Jade DIY
Jade DIY is Blockstream's open-source firmware for the Blockstream Jade hardware wallet, made available for installation on compatible off-the-shelf hardware. The project lets users build and verify their own Jade-compatible signing device from generic components.
What It Is
- Open-source firmware for the Blockstream Jade, released so users can flash it onto supported boards
- DIY path: build a signing device without buying a retail unit; verify the firmware and build yourself
- Air-gapped operation: communicates via QR codes with coordinator software
- Main repo: github.com/epiccurious/jade-diy (guide and tooling), firmware from Blockstream/Jade
Key Features
- Runs Jade's open-source firmware on generic hardware
- Supports seed generation, xpub export, and PSBT signing
- Works with Specter Desktop, Sparrow, Nunchuk, and other coordinators
- Enables Multisig alongside other DIY and commercial signers
Security Model
Like Krux and SeedSigner, Jade DIY emphasizes transparency over tamper resistance. The user is responsible for physical security and supply-chain verification; the benefit is a fully inspectable stack.
Relation to Round Rock Bitcoiners
- Featured in Meetup #50 — On Self Custody & Entropy as a DIY firmware option
- Part of the community's DIY/maker ethos around self-custody
Resources
See also
- Krux — open-source signing-device firmware
- SeedSigner — DIY air-gapped signing device
- Specter DIY — Specter's DIY hardware wallet