Homebrew has the capability to add (and remove) multiple taps to your local installation with the `brew tap` and `brew untap` commands; run `man brew` in your terminal for usage information. The main repository at <https://github.com/Homebrew/homebrew-core>, often called `homebrew/core`, is always built-in.
* [DomT4/autoupdate](https://github.com/DomT4/homebrew-autoupdate): An external command to automatically run `brew update` (and optionally `brew upgrade` or `brew cleanup`) in the background with `launchd`.
* [denji/nginx](https://github.com/denji/homebrew-nginx): A tap for NGINX modules, intended for its `nginx-full` formula which includes more module options.
* [osx-cross/avr](https://github.com/osx-cross/homebrew-avr): GNU AVR toolchain (Libc, compilers and other tools for Atmel MCUs), useful for Arduino hackers and AVR programmers.
* [cloudflare/cloudflare](https://github.com/cloudflare/homebrew-cloudflare): Formulae for the applications by Cloudflare, including curl with HTTP/3 support.