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CubeDesk is a free online Rubik's Cube timer for speedcubers. It offers WCA-style scrambles, stats and averages, algorithm training and 1v1 racing. The project was released as a desktop app and later became a web app, and its code was made open source.
Drawingbooks.org provides free and open drawing and art instruction. It hosts public domain and open source art books, described as legal and free of copyright restrictions in the U.S. Titles listed include The Drawings of D. G. Rossetti, The Human Figure, Constructive Anatomy, and Book of a Hundred Hands.
An interactive circle of fifths chart intended as a music theory tool for visualizing scales, notes, chords and keys and their relationships. Users can switch between the major and minor circles, and selecting a key shows scale degrees, relative keys and diatonic chords.
KataGo Distributed Training hosts the first public-distributed training run of KataGo, an open-source self-play-trained Go engine. Volunteers contribute to continue training from the previous official run, which ended in June 2020. The site provides run updates, downloads, contribution instructions, statistics and networks.
Bridge Command is a free, open source interactive 3D ship and radar simulator for Windows, Apple macOS and Linux, released under the General Public Licence v2. It is intended as a training tool for navigation, radar, ship handling and other seamanship skills, with configurable ships, buoys, environmental models and scenarios.
Playsheet is a MIDI piano learning app and rhythm-game-style trainer that turns real notation into interactive practice. Users import MusicXML, MIDI, ABC or MuseScore files or use a built-in catalog, connect a MIDI keyboard for note and timing feedback, loop bars, slow songs down and practice hands separately. The app is in alpha and free.
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CubeDesk is a free online Rubik's Cube timer for speedcubers. It offers WCA-style scrambles, stats and averages, algorithm training and 1v1 racing. The project was released as a desktop app and later became a web app, and its code was made open source.
Drawingbooks.org provides free and open drawing and art instruction. It hosts public domain and open source art books, described as legal and free of copyright restrictions in the U.S. Titles listed include The Drawings of D. G. Rossetti, The Human Figure, Constructive Anatomy, and Book of a Hundred Hands.
An interactive circle of fifths chart intended as a music theory tool for visualizing scales, notes, chords and keys and their relationships. Users can switch between the major and minor circles, and selecting a key shows scale degrees, relative keys and diatonic chords.
KataGo Distributed Training hosts the first public-distributed training run of KataGo, an open-source self-play-trained Go engine. Volunteers contribute to continue training from the previous official run, which ended in June 2020. The site provides run updates, downloads, contribution instructions, statistics and networks.
Bridge Command is a free, open source interactive 3D ship and radar simulator for Windows, Apple macOS and Linux, released under the General Public Licence v2. It is intended as a training tool for navigation, radar, ship handling and other seamanship skills, with configurable ships, buoys, environmental models and scenarios.
Playsheet is a MIDI piano learning app and rhythm-game-style trainer that turns real notation into interactive practice. Users import MusicXML, MIDI, ABC or MuseScore files or use a built-in catalog, connect a MIDI keyboard for note and timing feedback, loop bars, slow songs down and practice hands separately. The app is in alpha and free.
