Development and deployment system designed as the successor to Vagrant Formula was removed
Last versions were

Revision: 1

otto requires the following formulae to be installed:
go 1.10 Open source programming language to build simple/reliable/efficient software
gox 0.4.0 Go cross compile tool

Recent formula history

ilovezfs otto: delete (#22567)
commitay otto: depend on gox at build time
Dominyk Tiller otto: fix build
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)

Formula code at GitHub