Guide ยท Homebrew
Install Macadress Scanner on macOS with Homebrew
Macadress Scanner is distributed through its own Homebrew tap rather than Homebrew's core cask registry. Here's the install command, what to do about the tap trust prompt, and how to upgrade or remove it later.
The Macadress Scanner desktop app isn't in Homebrew's core cask registry (see below for why), so it ships from its own tap instead. Installing it is two commands:
brew tap sapisos/macadress
brew install --cask macadress-scanner
That's the whole install. The app lands in /Applications, signed with a Developer ID certificate and notarized by Apple, so Gatekeeper opens it without a warning.
Fixing the tap trust prompt
Recent versions of Homebrew require explicitly trusting a tap the first time you install anything from it that isn't Homebrew's own core repositories. If the install stops with something like this:
Error: Refusing to load cask sapisos/macadress/macadress-scanner from untrusted tap sapisos/macadress.
Run `brew trust --cask sapisos/macadress/macadress-scanner` or `brew trust sapisos/macadress` to trust it.
run the command it suggests, then install again:
brew trust sapisos/macadress
brew install --cask macadress-scanner
This is a one-time step per machine. It's Homebrew's own tap trust mechanism working as intended, not anything specific to this cask, and the same prompt shows up for any cask or formula from a non-core tap the first time you install from it.
Upgrading and removing
# Upgrade to the latest version
brew upgrade --cask macadress-scanner
# Remove it
brew uninstall --cask macadress-scanner
Why a separate tap instead of Homebrew's core cask registry
Homebrew's core cask repository has a notability bar: new submissions need an established public track record (GitHub stars and forks for open-source projects, or independently verifiable public interest and demand for anything else) before maintainers accept them. That's a reasonable bar, it keeps the core registry free of software nobody's actually using yet, and it isn't one a newly launched app clears on day one. A dedicated tap gives the exact same brew install experience in the meantime, with one extra brew tap command up front.
Prefer a direct download instead? The scanner page also has a signed, notarized .zip you can download and unzip directly, no Homebrew required.
More guides