buttercup

Install command: 
brew install --cask buttercup

Name: Buttercup

Javascript Secrets Vault - Multi-Platform Desktop Application

https://buttercup.pw/

Cask JSON API: /api/cask/buttercup.json

Cask code: buttercup.rb on GitHub

Current version: 2.28.1

Current version requires: macOS >= 10.13

buttercup is built for Intel macOS and so requires Rosetta 2 to be installed.
You can install Rosetta 2 with:
    softwareupdate --install-rosetta --agree-to-license
Note that it is very difficult to remove Rosetta 2 once it is installed.

Analytics:

Installs (30 days)
buttercup 19
Installs (90 days)
buttercup 66
Installs (365 days)
buttercup 330
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