The installer updates your shell config. After it finishes, restart your terminal or run the source command it prints.
Measured on 2026-10-08 with zerobrew 0.3.5 (development release) and Homebrew 7.0.8 on macOS 26.6.2, MacBook Pro (M3 Pro, 18 GB RAM), ~318 Mbit/s download bandwidth. Homebrew started with nothing installed.
To reproduce, run just bench --full results/ on a machine with nothing installed in Homebrew. It resets zerobrew, uninstalls everything it installed in Homebrew, and writes a table to results/benchmark.md.
A smaller version runs in CI: the parity workflow installs a fixed set of formulae with both tools on the same runner and compares the resulting prefixes byte for byte, and the timing workflow times those formulae plus node and python@3.14, cold and warm, with both tools and with the last zerobrew release.
