Installing cinco means you have AGREED to the license at:
https://www.eclipse.org/legal/epl-v10.html
cinco requires Java 11. You can install it with:
brew install --cask temurin@11
cinco is built for Intel macOS and requires Rosetta 2 on Apple Silicon.
Install Rosetta 2 with softwareupdate --install-rosetta --agree-to-license.
Rosetta 2 is difficult to remove once installed.