Phylax Version 3

PHYLAX — Open-Source Bitcoin Hardware Wallet

PHX-001 · Version 3 · Square Button

PHYLAX (Greek φύλαξ, "guardian") is an open-source, Bitcoin-only hardware wallet built around a simple idea: no black-box chips, no wireless radios, no telemetry, and firmware you can read and verify yourself. This repository contains the KiCad hardware design files for the PHYLAX Version 3 board (square button variant).

🌐 Website: phylaxwallet.com

Status: In development — prototype targeted for Q4 2026. Hardware and firmware are subject to change.

Why PHYLAX

• Zero black-box chips — no proprietary secure element; every component is one you can trace and verify.
• Fully open firmware — released under GPL v3.
• Bitcoin-only — no altcoins, no unnecessary attack surface.
• No wireless radios, no telemetry — the device only talks over USB-C, and only when you plug it in.
• Built by the community — the project is developed and audited in the open.

What's in This Repository

This is a KiCad 8 project containing the schematic, PCB layout, 3D models, fabrication outputs, and supporting library parts for the PHYLAX board.

Phylax_Version_3 Square Button/
├── Phylax_Version_3.kicad_pro       # KiCad project file
├── Phylax_Version_3.kicad_sch       # Schematic
├── Phylax_Version_3.kicad_pcb       # PCB layout
├── 3D/                              # 3D models & case designs (.step, .stl, .FCStd, .scad)
├── Library/                         # Custom symbol, footprint, and 3D model libraries per part
├── Gerber/                          # Fabrication (Gerber/drill) outputs
├── PCB Outline/                     # Board outline drawings (DXF/PDF)
├── production/                      # BOM, position files, netlist, and production archives
├── Phylax_Version_3-backups/        # KiCad autosave/backup archives
├── fp-lib-table / sym-lib-table     # KiCad footprint & symbol library tables
└── Button Note.txt                  # Working design notes on component substitutions

Key components

(See production/bom.csv for the full bill of materials.)

Getting Started

Prerequisites

• KiCad 8 or later
• (Optional) FreeCAD to view/edit the .FCStd case files
• (Optional) OpenSCAD to view/edit the .scad case files

Opening the project

1. Clone this repository:

   git clone https://github.com/ta007403/PHYLAX.git
   cd PHYLAX

2. Open Phylax_Version_3.kicad_pro in KiCad.
3. Schematic, PCB, and 3D viewer are all accessible from the KiCad project manager.

Manufacturing

Fabrication-ready outputs (Gerbers, drill files, BOM, and pick-and-place data) are provided in the Gerber/ and production/ folders for sending directly to a PCB manufacturer/assembler.

Contributing

PHYLAX is built in the open and welcomes community review and contributions — from schematic review to case design. Please open an issue or pull request with proposed changes. If you spot a design or safety issue, responsible disclosure is appreciated.

License

Firmware and hardware design files are released under GPL v3 unless otherwise noted. See the PHYLAX manifesto and specs for more on the project's philosophy and technical details.

Links

• Website: phylaxwallet.com
• Specifications: phylaxwallet.com/specs
• Manifesto: phylaxwallet.com/manifesto
• Journal / build updates: phylaxwallet.com/journal
• Facebook: facebook.com/phylaxwallet

Not your keys, not your coins — PHYLAX gives you the keys.