Improved top (interactive process viewer) for macOS Formula was removed
Last version was
htop-osx requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
automake 1.16.1 Tool for generating GNU Standards-compliant Makefiles
libtool 2.4.6_1 Generic library support script

Recent formula history

Matthias Winkelmann htop-osx: delete (#18993)
Mike McQuaid htop-osx: remove ENV.no_optimiziation no-op.
Izzy Navedo Replace references to “(Mac) OS X” with “macOS”.
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)

Formula code at GitHub