DIY bitcoin ecosystem
summary
Overview of current DIY bitcoin signers with concrete tooling and results: firmware options SeedSigner, Specter DIY, Crux, Jade and forks run on distinct chips (Raspberry Pi Zero, STM32, Kendryte K210, ESP32 variants) and rely on the M-bit MicroPython library or libwally C stacks; touchscreen signers land around $50 while tiny Jade DIYs hit $10 and Specter setups reach ~200 CAD; projects secure funding (HRF, Open Sats) and a Crux maintainer receives a grant to work full time after an anonymous creator hands the repo over in a key transfer; workshop offers hands-on flashing, PSBTv2 signing via testnet and new k_urc QR decoder demos.
AI-written summary · about
chapters (16)
- 0:00DIY Bitcoin ecosystem intro
- 1:10Bitcoin nodes and hardware
- 2:33DIY Bitcoin community
- 3:57Visual guides and promotion
- 5:21Builders and funding
- 7:07Popular DIY hardware signers
- 8:30History of DIY signers
- 12:44Why build your own signer
- 15:34Mbit library role
- 18:23Crux project overview
- 24:48HRF retreat for DIY hardware
- 27:37Collaboration after retreat
- 30:48ESP32-P4 chips future
- 33:15Affordable DIY options
- 34:20Get involved in DIY Bitcoin
- 35:23Grants and personal journey
related talks
23mFrostsnap: Self Custody Designed for Million Dollar Bitcoin
32mBitcoin Self Custody: Challenges & Tradeoffs
09mXMR Open Hardware Wallet, Kastelo
41mBitBox02 Hardware Wallet Demo
51mA Measured Response to a Grain of Rice
18mEngineering a backdoored bitcoin wallet
27mMulti Vendor Multisig
27msub0 Asia 2024 - Juan Leni (Zondax)