Remembering Sir Patrick Stewart

In 2005, I watched Sir Patrick Stewart perform from just ten meters away. I still remember his voice. Nothing is forever, and I’m reaching an age of saying goodbye to people I’ve loved. RIP, my captain and professor.

You Can See Everything

The Theranos story should be familiar to most people by now. I had read John Carreyrou's Bad Blood and listened to the audiobook, and both had left a strong impression. (I hadn't watched The Dropout, though.) By the time I saw the trailer for You Can

Orkes Shift '26

At Orkes Shift ’26 in San Francisco, I explored the work behind reliable AI agents: preserving progress, recovering from failures, and waiting for human decisions. How much of that infrastructure might agents eventually build and operate themselves?

Fleet Week SF 2026: A View from Angel Island

The Fleet Week air show has become a family ritual. For years, we have bought premium seats at Marina Green, paying more than $100 for a place close to the action. The seats are good, but they do not come with any authority over Karl the Fog. He spoiled our

Back to Levi's Stadium for a 49ers Game

On September 27, I went to Levi's Stadium with my family to watch the 49ers play the Arizona Cardinals. It was the third game of the season, and my first visit this year. I had skipped last season altogether. With Purdy missing so many games, it had been

Boris Cherny at the Computer History Museum

I ended my previous post about Joanna Stern's book talk with a small resolution: I should use these nearby opportunities more often. Living close to the Computer History Museum only means something if I actually go there. So when I saw that Boris Cherny, the creator of Claude

The Giants' 2026 Season Wrap-up

I went to three home games during the final week of the Giants' season. They lost all three. Each one left me with the familiar feeling that a win had been within reach, and that somehow we had found our way to another loss. The Division Series is getting

Project Hail Mary

Spoiler alert: this post has a weak spoiler of Project Hail Mary by Andy Weir. For Ms. Salle's book club this time, we chose Project Hail Mary by Andy Weir. It was my first time reading one of his books. I had really enjoyed The Martian, another story

Lost and Founder

I usually listen to audiobooks while running. I have been an Audible member since 2010, and in the beginning, following a whole book through audio alone took some effort. It is much easier now. I did not notice the improvement happening from one book to the next, but looking back

Yogurting Re 0.10.0: Particle Effects Return

The previous Yogurting Re update added target dummies and flight paths to the avatar tool. Version 0.10.0, released on September 8, 2026, fills in the next missing layer: the original game's particle effects. 0:00 /0:32 1× 0.10.0 All 154 shipped particle effects

MAMAMOO 4WARD at SAP Center

About ten years ago, when we were still living in Korea, my family went camping on weekends and holidays. Music was always a part when we were on the road. We used Google Music playlists, including one built around the best Korean girl groups, and MAMAMOO was one of the

Yogurting Re 0.9.0: Skills Find Their Targets

In my last Yogurting Re update, I wrote that the biggest remaining gap was targeting. Skill effects played on the character because there was nowhere else for them to go. Version 0.9.0, released on August 30, 2026, closes that gap with target dummies and skill flight paths. 0:

music

YOASOBI: Never Ending Stories in Oakland

There are few Bay Area plans less appealing to me than getting onto I-880 on a Friday afternoon. Yet on August 14, that was exactly where we were headed. YOASOBI had brought the NORTH AMERICA TOUR 2026 “NEVER ENDING STORIES” to Oakland Arena, and avoiding 880 was not an

yogurting

Yogurting Re 0.8.1: Skills in Motion

I released Yogurting Re 0.8.0 and 0.8.1 on August 24, 2026. The main update brings the original game's skill data into the avatar tool, connecting character motion, weapon styles, effects, and sounds. 0.8.0 The avatar tool can now decode and play all

agent

You Do Not Need Every Agent

On July 17, Peter Steinberger, the creator of OpenClaw, posted a short question on X: “Are we still talking loops or did we shift to graphs yet?” Are we still talking loops or did we shift to graphs yet? — Peter Steinberger 🦞 (@steipete) July 18, 2026 This post is also available

giants

The SF Giants Summertime Celebration 2026

On July 11, the Giants finished a 4-2 win over the Colorado Rockies, but our day at Oracle Park was not over. We waited for our turn to walk onto the field. This was my third Giants Summertime Celebration. The event is usually held during Season Ticket Member Appreciation

bayarea

The Night Karl Ate the Golden Gate Fireworks

Watching Fourth of July fireworks has become a family ritual for us, as it has for many families in the United States. The location changes, and each year I try to find a place that will make the familiar show feel a little different. Two years ago, we watched from

ai

Building a Local-First Agent Framework in Rust (Part 21): Beyond The CLI

See Part 0 for the latest table of contents and sample code. Chapter 21: Beyond The CLI: The Godot Bridge This is the final chapter of this book. It is also not a build chapter. Until now, each chapter ended with a concrete checkpoint. The sample code changed. A command

agent

Building a Local-First Agent Framework in Rust (Part 20): Real-World Tools

See Part 0 for the latest table of contents and sample code. New chapters will be added over time. Chapter 20: Real-World Tools: Reading Files And Running Commands For a long time, the tools in abcb were deliberately small. echo proved that the loop could call a tool and

ai

Building a Local-First Agent Framework in Rust (Part 19): Measuring Behavior With eval

See Part 0 for the latest table of contents and sample code. New chapters will be added over time. Chapter 19: Measuring Behavior With eval By Chapter 18, the model boundary has a clearer shape. The system prompt tells the model what envelope to emit. The parser tolerates the common

ai

Building a Local-First Agent Framework in Rust (Part 18): Teaching the Model

See Part 0 for the latest table of contents and sample code. New chapters will be added over time. Chapter 18: Teaching the Model: The System Prompt and Robust Parsing By Chapter 17, abcb run has become a real loop. It can keep a session, call tools, deny tools, record

ai

Building a Local-First Agent Framework in Rust (Part 17): The Run Summary

See Part 0 for the latest table of contents and sample code. New chapters will be added over time. Chapter 17: The Run Summary: A Read-Model From the Log Chapter 14 gave the loop an event log. Chapter 16 added another kind of event: a denied tool call. By

ai

Building a Local-First Agent Framework in Rust (Part 16): Approval: Gating Tool Calls

See Part 0 for the latest table of contents and sample code. New chapters will be added over time. Chapter 16: Approval: Gating Tool Calls By the end of Chapter 15, the agent could remember notes across runs. It could call tools, write event logs, keep sessions on disk, and

ai

Building a Local-First Agent Framework in Rust (Part 15): Memory Tiers: Notes

See Part 0 for the latest table of contents and sample code. New chapters will be added over time. Chapter 15: Memory Tiers: Notes Chapter 14 gave the agent run an audit trail. Every run can now leave an events.jsonl file inside its session directory. That file is about