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Sep 11, 2018


Chrysalis screenshot


Latest production builds Latest development builds


Chrysalis is a graphical configurator for Kaleidoscope-powered keyboards. While still under development, it is already usable for a number of tasks. To try it, you don't even need to flash Kaleidoscope beforehand, Chrysalis can do that for you, as it ships with reasonable default firmware for each supported board.

The primary purpose of the application is to allow one to configure their keyboard without having to compile or flash firmware, by storing the configuration on the keyboard itself, in EEPROM. There are no external tools required, just Chrysalis itself.


  • Layout editor to edit the keymap on-the-fly, with the ability to copy one layer to another, and to set a default one.
  • Colormap editor to edit the per-key LED colormap on boards that support it.
  • Firmware upgrade to upload either the default, Chrysalis-enabled firmware that ships with the application, or a custom one.

Supported Hardware

Chrysalis supports the Keyboardio Model01 and the Keyboardio Atreus, along with the original Atreus. There's also preliminary support for the Dygma Raise.

The ErgoDox EZ (and any other keyboard wired like it), the SOFT/HRUF Splitography, KBDFans KBD4x, and older, Teensy-based OLKB Planck keyboards are also supported, as long as they run suitable firmware.

Supported operating systems

Chrysalis is primarily developed under Linux, but we target all three major operating systems, and test our releases on Windows and macOS too. That said, our testing is done on Ubuntu 18.04 LTS, Windows 10, and macOS Mojave.

The protocol Chrysalis uses to communicate with the keyboard requires USB serial support, which is known to be problematic on Windows prior to Windows 10.


From installer packages

Choose whether to install the production release, or a development snapshot from the links above, and from the release page, select the installer appropriate for your operating system.

macOS Homebrew

brew update && brew upgrade
brew install --cask chrysalis

Reporting issues

Chrysalis is alpha quality software. There will be bugs, missing features and non-obvious things. Reporting any and all of these help us make the software better, please feel free to open issues liberally!


To launch the development environment, simply type yarn && yarn start. To do a production build, use yarn run build:all, or limit it to a particular OS: yarn run build:linux, yarn run build:mac or yarn run build:win. See the scripts section of package.json for more scripts.


There are sample ENV file & debugging configurations provided in the dev/sample directory. There is also an example launch.json for VSCode under the .vscode directory under dev/sample/.vscode/launch.json. To debug the main process, you may wish to launch from an IDE (without using the above in a terminal), configurations for VSCode are provided. If using the launch or compound configurations, the timeout properties must allow enough time for the app to fully launch before the debugger(s) stop trying. In the case of compound, this applies to the renderer and main process debugger.

Note: The ports defined in your .env.development & your debugging configuration must match.