An oneko / xneko-style desktop pet for macOS. A cat lives in a small transparent, click-through window and chases your mouse cursor. When it catches up it runs the original oneko idle chain (sit, groom at a wall, paw, scratch, yawn, then curl up to sleep), and wakes with a startle the moment the cursor moves.
Built with AppKit. Menu-bar only (no dock icon); a 🐱 menu-bar item provides Pause/Resume and Quit.
Neco's own code is released under CC0 (see LICENSE).
The cat sprites are the public-domain oneko neko bitmaps, converted from XBM
to embedded data in Neco/Sprites.swift. The cat has a history worth keeping:
- The cat was drawn by Juan Gotoh (後藤寿庵) for neko DA, a Macintosh desk accessory. The design is his original.
- Masayuki Koba (古場正行) turned it into the bitmaps for the X11 program xneko (1990).
- Tatsuya Kato derived oneko from xneko, reusing its cat bitmaps almost unchanged.
Gotoh, Koba, and Kato each confirmed the artwork and program are free to use, modify, and redistribute; oneko / xneko are treated as public domain by Debian, the FSF, and Fedora.
- Provenance: https://www.3bit.co.jp/~sasaki/oneko/COPYRIGHTS.
- Bitmap source: http://www.daidouji.com/oneko/ (oneko-1.2.sakura.5,
bitmaps/neko/).
Not bundled on purpose: the BSD daemon bitmaps (Copyright 1988 Marshall Kirk McKusick) and the Sakura / Tomoyo bitmaps (Cardcaptor Sakura characters, CLAMP / Kodansha) that ship in the same tarball.