When comparing Homebrew vs Hammerspoon, the Slant community recommends Homebrew for most people. In the question“What are the best power user tools for macOS?” Homebrew is ranked 2nd while Hammerspoon is ranked 38th. The most important reason people chose Homebrew is:
Homebrew makes it easy for people to quickly install any open source software (that is contained within the apps repositories) for Mac.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Quick access to a large repository of open source software
Homebrew makes it easy for people to quickly install any open source software (that is contained within the apps repositories) for Mac.
Pro Easy to setup and use
Once installed, you control Homebrew using the brew command. You can find packages using brew search, install them using brew install and remove them using brew uninstall.
Pro Open Source
Pro Less maintenance than Macports
Macports seems to be able to get into a bad state where new packages are unable to be installed, or installed software was unable to be updated. This simply hasn't happened with Homebrew. In addition to not having to deal with corruption problems, Homebrew installs packages in userland. Not requiring root to install software is a big win.
Pro Builds quickly and requires few dependencies
Homebrew as much as possible uses already existing libraries and tools to install software thus making builds quick and requiring few dependencies.
Pro Unintrusive
Homebrew installs packages to their own directory and then symlinks their files into /usr/local
. Homebrew won’t install files outside its prefix, and you can place a Homebrew installation wherever you like.
Pro Does not require using sudo
One of the things to like about Homebrew is that it refuses to run things under sudo
most of the time. This is a great policy, but it causes issues when you want to create symlinks or install in places that SIP has changed permissions on.
Pro Homebrew tries very hard to use existing tools and libraries
Homebrew’s recipes try very hard to use the existing tools and libraries in OS/X, so they tend to build much faster and require fewer dependent libraries.
Pro 1512 issues are closed in the download page in GitHub
https://github.com/Hammerspoon/hammerspoon/issues
They do fix issues that come from the community.
Pro Deeply customizable
Hammerspoon's Lua scripting and broad API allows you to perform any action you can imagine on your mac. It hooks into many OS APIs directly and has some high-level APIs to manipulate things like Spotify or iTunes. See the full list here.

Pro Automate actions based on the operating system
Hammerspoon lets you hook into OS level events and trigger any action you can imagine. From setting up a simple keyboard shortcut to launching a complex workflow using multiple apps and scripts.
Cons
Con May cause issues when trying to create symlinks or installing in places where SIP has changed permissions
One of the things to like about Homebrew is that it refuses to run things under sudo
most of the time. This is a great policy, but it causes issues when you want to create symlinks or install in places that SIP has changed permissions on. (Alternatively, you could install Homebrew somewhere other than /usr/local
, but that might break various packages that depend on having stuff in and relative to /usr/local/
.)
Con Command line tools for XCode required
Once xcode is installed you can install Homebrew, including new(er)/different versions of most of the build stuff that xcode-select installed, like a newer gcc, newer git, etc.
Con Relies on outdated system libs
Con Has 324 issues on their download page in GitHub
https://github.com/Hammerspoon/hammerspoon/issues
I can not list all the issues.
Con Some knowledge of programming required
Hammerspoon is scripted in the Lua programming language, and some familiarity with programming in general will be needed to use it. Some plugins exist that can be used by adding some files to a specific folder, but this will not give the flexibility that is so key to Hammerspoon
