hummingbird

Install command: 
brew install --cask hummingbird

Name: Hummingbird

OpenVPN 3 client

https://airvpn.org/hummingbird

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

Cask code: hummingbird.rb on GitHub

Current version: 1.3.0

Current version requires: macOS >= 10.13

Versions:

Intel sequoia 1.3.0
sonoma 1.3.0
ventura 1.3.0
monterey 1.3.0
big sur 1.3.0
catalina 1.3.0
mojave 1.3.0
high sierra 1.3.0

Analytics:

Installs (30 days)
hummingbird 8
Installs (90 days)
hummingbird 26
Installs (365 days)
hummingbird 93
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