Version 0.6.1 · Xteink X3, X4 & X4 Pro

Everything you love about CrossInk, now in System 6.

RetroInk adds a full System 6 redesign, classic Mac desk accessories, a real library, reading goals, Obsidian clip syncing, and your own calendar on top of CrossInk.

Download the latest release See what's inside
✓ Free & open source
✓ Fork of CrossInk
✓ System 6 redesign
✓ Obsidian & calendar sync
✓ Updates over Wi-Fi
RetroInk's Home screen, styled after classic Macintosh System 6
Home screen, classic Mac chrome, drawn live
On top of CrossInk

What RetroInk adds.

Every CrossInk feature stays intact. RetroInk layers on a retro redesign and a handful of reading-focused upgrades.

Retro UI
A full System 6 redesign: striped title bars, pixel-drawn Mac chrome, sixteen desktop patterns to choose from, a boot sequence with animated eyes, and a sleep screen picker that previews each screen with your own book and calendar, all drawn in code.
Stats Dashboard
Reimagined reading stats: daily goal progress, a 7-day streak strip, and a full year-long contribution-style calendar grid.
Real Library
Browse your books on real shelves: Left/Right pages through the current shelf, Up/Down switches shelves instantly, plus custom shelves alongside To Read, Reading, Finished, and Favorites, four sort modes, A-Z jump, and an SD-backed catalog built for thousands of books.
Desk Accessories
Classic Mac-style utilities: a Moon Phase drawn from a real photo, a day/night Earth, a ticking desk clock, a sliding puzzle, a tilt Marble Maze on the X3, a calendar, and system info.
Focus Session
Configurable reading sessions and daily goals, Wi-Fi off while you read, and a countdown that survives sleep with accurate time remaining.
Obsidian Sync
Push saved highlights straight into your Obsidian vault, over your local network or a webhook, on top of the existing clippings export.
Calendar Sync
Paste your Google, Apple, or Outlook calendar link once. Events show up in the Desk Calendar, a full-screen Day View, and two sleep screens, all stored on the SD card.
Web Portal
The page you get when you connect over Wi-Fi gets the same System 6 look, with a Library tab and drag-and-drop custom shelves.
Updates over Wi-Fi
Check for updates on the reader itself, see what changed before you install, and update without a computer.

Useful docs.

Ready to flash
your reader?

RetroInk is free and open source. Download the firmware from the latest release, follow the installation guide, and bring your Xteink X3, X4 or X4 Pro into System 6. Each release lists the firmware for every device side by side. Already on RetroInk? Check for updates in Settings.

Download the latest release Installation guide