fman

Install command: 
brew install --cask fman

Name: fman

Dual-pane file manager

https://fman.io/

Development: Pull requests

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

Cask code: fman.rb on GitHub

Current version: 1.7.3

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
fman 13
Installs (90 days)
fman 28
Installs (365 days)
fman 158