keyman

Install command: 
brew install --cask keyman

Name: Keyman

Reconfigures keyboard to type in another language

https://keyman.com/

/api/cask/keyman.json (JSON API)

Cask code on GitHub

Current version: 16.0.147

You must manually install the keyboard layout under:

     Preferences → Keyboard → Input Sources

Before uninstalling Keyman, it is also suggested to manually remove the
input method. For further details, see the following links:

https://help.keyman.com/products/mac/current-version/start/install-keyman
https://help.keyman.com/products/mac/current-version/troubleshooting/uninstall-keyman

Analytics:

Installs (30 days)
keyman 34
Installs (90 days)
keyman 105
Installs (365 days)
keyman 350
Fork me on GitHub