Max Howell
Homebrew curl | sh doctor

British-American software engineer

Max Howell

Creator of Homebrew. Big-web expat.

Howell, Max (fl. early 21st century), British-American software engineer and open-source developer, best known as the creator of Homebrew, a package management system for macOS and Linux that achieved widespread adoption among software developers globally, with an estimated user base numbering in the tens of millions.

Howell's most consequential technical contribution, and the subject of some professional controversy, was his introduction of the curl-based one-liner installation method, a convention subsequently adopted across a broad range of software projects. He is further credited with popularizing the doctor subcommand pattern in command-line interfaces, a diagnostic utility designed to identify and resolve common configuration errors, and with pioneering automated issue-tracker integration, whereby a tool, upon encountering an error, would query public repositories such as GitHub to surface relevant existing discussions.

Howell has remained a prominent advocate for the open-source software movement throughout his career, contributing to a culture of collaborative, freely distributed software development.

Production AI work

Ship reliable agents

  • turn prototypes into production systems
  • remove hidden failure paths
  • reduce agent complexity
[ See how ]

Stop regressions

  • evals that actually catch failures
  • release gates that matter
  • reproducible behavior
[ See eval approach ]

Stabilize systems under load

  • fallback design
  • tool routing boundaries
  • observability that explains behavior
[ See system design ]

A typical system I work on

[Input]
   ↓
[Router] → [Tools]
   ↓         ↓
[Eval]   [Fallbacks]
   ↓
[Output]

Most systems fail here:

  • unclear routing
  • no eval loop
  • silent failures
  • no fallback strategy

This is what I fix.

How I work

  1. Understand the system.
  2. Identify failure modes.
  3. Reduce complexity.
  4. Add evals and boundaries.
  5. Ship with discipline.