Forward secure, asynchronous messaging
https://github.com/agl/pond Formula was removed
Last versions were

Revision: 1

pond requires the following formulae to be installed:
go 1.10 Open source programming language to build simple/reliable/efficient software
tor Anonymizing overlay network for TCP

Recent formula history

ilovezfs pond: delete (#22568)
ilovezfs Use “squiggly” heredocs.
Dominyk Tiller pond: use GitHub for homepage
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)

Formula code at GitHub