Victor Lau — Build Log

Builds software, AI evals, and games in San Francisco, after twelve years in finance at Ernst & Young and Autodesk.

Entries: 15
Span: 2024—2026
Built for: iOS · web · Chrome · Meta Horizon
Now: ▸ ARC-AGI-3 agent

fig. 01 — Shuffle Chess 960.

since 2007Roles

2026 – now
Glean Ag · Full-stack software engineer (contract)Building the forecasting web app for an agtech startup.
2025
Cohezion · Front-end software engineer (contract)An AI platform that helps game studios understand their player communities.
2024 – now
OnePixel · FounderRelaunched as an independent studio for software, model evals, and games — most of the log below.
2017 – 2024
Autodesk · Revenue accounting manager, then senior finance managerRevenue review on the largest deals, then finance data and quote-to-cash systems.
2014 – 2017
OnePixel · Founder and CEOA mobile game studio; led a team of four to ship Arc & Ani to the App Store.
2007 – 2014
Ernst & Young · Assurance, intern to managerAudited large software and hardware companies.

since 2024Build log

202610 entries · 7 figures

A 120-page contract stack with one clause highlighted — from the eval's results page — **fig. 02** — The Jev eval. Results ↗

Four generated games: push, toggle, maze, and cycle — **fig. 03** — Generated games: push, toggle, maze, cycle. Live site ↗

fig. 04 — the ARC agent: player, world model, planner.

Ski Flee — the yeti chase, in-game — **fig. 05** — Ski Flee, the yeti chase. App Store ↗

Pong, AI vs AI — **fig. 06** — Pong and Snake, both trained from random play.

**fig. 06** — Pong and Snake, both trained from random play.

Tomo Buddy, content — **fig. 07** — Tomo Buddy: content, grumpy, and three of its days. Devpost ↗

**fig. 07** — Tomo Buddy: content, grumpy, and three of its days. Devpost ↗

Shuffle Chess 960 — a shuffled starting position — **fig. 08** — Shuffle Chess 960, start position #737. App Store ↗

2026.10.09ShippedNow

Published an open-source eval of Jev, TypeSafe’s decision model, on which contract clauses need a revenue accounting review.fig. 02

Results Code

2026.09.27Shipped

Built a puzzle generator that makes training games for the ARC agent: 19 kinds of game, each built backward from its solved state and kept only if it passes 16 automated checks.fig. 03

Live site

2026.08.19Building

Moved the ARC agent off LLMs — a world model that predicts what each move does, plus a planner that searches for the goal.fig. 04

2026.08.15Shipped

Shipped Ski Flee: Snow Runner, inspired by SkiFree.fig. 05

App Store

2026.08.04Experiment

Started on ARC Prize 2026 (ARC-AGI-3, the interactive track): read 5 papers and built a harness so frontier LLMs could play the games.

2026.06.23Experiment

Trained neural nets to play Pong and Snake — PPO for Pong, then a DQN for Snake with a replay buffer, target network and ε-greedy exploration.fig. 06

2026.06.22Honorable mention

Entered Meta’s Horizon Creator Competition (Game Design) with Tomo Buddy — a virtual-pet yeti with a mind of its own. Honorable Mention in Simulation & Management; write-up on Devpost.fig. 07

2026.06.10Shipped

Launched Shuffle Chess 960 — Chess960 for iPhone, with Stockfish on-device.fig. 08

App Store

2026.05.01In use

Built a pixel character generator for consistent character animations and game-art assets.fig. 07

2026.03.01In use

Started a personal knowledge agent — Pydantic AI, Postgres vector search, and Dagster for the data pipeline.

202504 entries · 4 figures

Season Dash — a multiplayer run — **fig. 09** — Season Dash, a multiplayer run through winter Tahoe — press play. Devpost ↗

Plop: dragging a sofa onto a room photo — **fig. 10** — Plop: drag a store sofa onto a photo of your room and it renders in place. Right, a room it designed.

Plop: the sofa rendered in place — **fig. 10** — Plop: drag a store sofa onto a photo of your room and it renders in place. Right, a room it designed.

RSFScribe — ask about RealitySF sermons — **fig. 11** — RSFScribe. Live site ↗

bread — today’s reading — **fig. 12** — bread. Live site ↗

2025.11.01Competition

Entered Meta’s Horizon Competition and built Season Dash — an endless runner through summer San Francisco and winter Tahoe, with multiplayer races. Submitted on Devpost.fig. 09

2025.10.01Competition

Entered Google’s Chrome Built-in AI Challenge and built Plop — a Chrome extension that previews online furniture in your own living space before you buy.fig. 10

2025.09.01Shipped

Launched RSFScribe, an AI search tool over 600 hours of transcribed talks, mixing SQL and vector search.fig. 11

Live site

2025.03.01Shipped

Launched bread — a daily scripture reader with C.S. Lewis text-to-speech and a chat to ask questions about the reading.fig. 12

Live site

202401 entry

2024.12.13In use

Began a meal-planning app — a recipe library, a week you plan by drag and drop, and a shopping list built from the plan.