Adds caching proxy example using HOMEBREW_ARTIFACT_DOMAIN

I brought this up several months ago and got a solution working that's been running on my work machine since early September without failure.
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Colin Dean 2025-01-22 00:34:37 -05:00 committed by GitHub
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@ -121,3 +121,18 @@ If you're using Homebrew on macOS Intel, you should also fix permissions afterwa
```sh
sudo chown -R "${USER}" /usr/local/etc
```
## Use a caching proxy or mirror for Homebrew bottles
You can configure Homebrew to retrieve bottles from a caching proxy or mirror.
For example, in JFrog's Artifactory, accessible at `https://artifacts.example.com`,
configure a new "remote" repository with `homebrew` as the "repository key" and `https://ghcr.io` as the URL.
Then, set these environment variables for Homebrew to retrieve from the caching proxy.
```sh
export HOMEBREW_ARTIFACT_DOMAIN=https://artifacts.example.com/artifactory/homebrew/
export HOMEBREW_ARTIFACT_DOMAIN_NO_FALLBACK=1
export HOMEBREW_DOCKER_REGISTRY_BASIC_AUTH_TOKEN="$(printf 'anonymous:' | base64)"
```