fifthrevision

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Recent

  • What Is Everyone Actually Doing With AI?
    Jun 2026

    A survey of 107 about how people use AI

  • Why I’m building Sunnyday
    May 2026

    A platform for repeatable, reliable agents

  • 10 thoughts about AI in 2026
    Jan 2026

    A designer's vantage point on AI

  • This week: Axle 0.30, new docs; Sunnyday gains skills
    Aug 16
  • This week: Sunnyday Sandbox resume, Assistant; next Axle CLI?
    Aug 9
  • Prototyping the SDLC
    Aug 5
  • This week: Sunnyday pruning; codebase knowing.
    Aug 2
  • A Framework for Agentic Success
    Jul 28
  • This week: Axle 0.28.0; evals, experiments.
    Jul 26
  • A new resolve?
    Jul 23
  • The Law of Conservation of Complexity
    Jul 16
  • Keeping up with the Robots
    Jul 9

Intro

Chong Han is a software designer and maker based in San Francisco, California.

  • Github↗
  • LinkedIn↗
  • Mastodon↗
  • Email↗
Reading: The Republic↗

Short bio

Work

My design practice centers on people and sits at the intersection of technology and the humanities.

I’ve spent two decades building software, teams, and companies, from the very large to the very small. These days, I’m working on Sunnyday, thinking hard about the shapes reliable agents take in our software futures.

All projects

"I speak to computers, telling them about dreams that humans dream."

© 2009–2026