This directory documents the extra features this fork adds on top of stock SeedSigner, with a focus on smartcards, plus the quick-start guides most users need and documentation for building, developing and assembling your own hardware.
New to the smartcard features? Start with the applet reference to decide what to install, then the relevant quick start below.
| Guide | What it walks you through |
|---|---|
| 01 – Install applets on DIY JavaCards | Preparing a card and flashing SeedKeeper (and friends) |
| 02 – Mnemonic to a SeedKeeper | Create a seed, save it, load it back |
| 03 – Multisig descriptor to a SeedKeeper | Load, save and reload a descriptor |
| 04 – Initialise a Satochip with a seed | Seed a Satochip and export an xpub |
| 05 – Password generator to a SeedKeeper | Generate a password and store it on a card |
| 06 – First-time DIY card setup | GlobalPlatform keys and locking a card |
| 07 – SLIP-39 backup | Split and store SLIP-39 shares |
| 08 – BIP85 child seed | Derive a child wallet from a parent |
| 09 – SeedQR backup | Transcribe a seed to a SeedQR |
| 10 – Flash a MicroSD card | Flash and verify a SeedSigner image in-app |
- Bundled JavaCard applets — what each CAP is, which to install
- Smartcard integration and installation — readers, wiring, build prerequisites
- SeedKeeper
- Satochip
- Keycard
- Satodime
- Specter-DIY
- Multisig descriptors
- SLIP-39 shares
- BIP85 child seeds
- Seed QR formats
- Dice verification
- Electrum seeds
- WIF and BIP38 signing
- Password Generator
- Text QR Code tool
- MicroSD Tools
- GPG Tools
- GPG trusted signers
- BIP85 GPG version history
- Shopping list — what to buy, including store links
- Hardware shopping and assembly — platform/board options, cases and assembly
- Hardware platform support
- IO config
- Battery
- Legacy hardware