Writing

Projects, experiments, and lessons from software and markets.

Jun 9, 2026Trading Psychology

Trading psychology: why traders really fail

Trading psychology is where most edges go to die. The recurring failure modes I keep writing about, and how they fit together.

Jun 9, 2026Python

Python for backtesting, a trader's view

The Python tools I used to backtest trading strategies, what they are good at, and the exact point where I outgrew them.

Jun 9, 2026AI Agents

What an AI agent actually is, and how to build one

What an AI agent actually is, how it differs from a plain LLM, and what I learned building several in Python.

Jun 9, 2026Realtime

How WebSockets actually work, and what bites you

How WebSockets work: the handshake, the frames, and the gotchas, learned from running real systems over them.

Jun 9, 2026Prompt Engineering

Prompt engineering examples that actually work

Concrete prompt engineering examples and the patterns behind them, drawn from how I use AI for code, research, and writing.

Jun 9, 2026Claude Code

Claude Code: what it is and how I actually use it

Claude Code is Anthropic's agentic coding tool. Here's what it is, how it works, and how I actually use it across real Go and Python projects.

May 30, 2026Trading

Backtesting the four classical harmonic patterns

Gartley, Bat, Butterfly, Crab on ES from 2020 to 2024. One looked tradeable; the cross-instrument check killed the universal claim.

May 29, 2026Trading

I backtested six classical candlestick patterns. One held up.

Six candlestick patterns tested on NQ from 2020 to 2024. One held up. Two failed cleanly. One fired too rarely. Two were NQ-only artifacts.

May 26, 2026Trading

Backtesting Moving Average Crossover across four setups

I tested moving-average crossover on NQ 1H, ES 1H, GC 1H, and the daily 50/200 golden cross. Three of four told a different story.

May 23, 2026Trading

The Stock Market Looks Very Different When Measured in Gold

In dollars the S&P 500 has made huge new highs since 2000. In gold, it never got back to its peak. What changes when you swap the measuring stick?

May 11, 2026Go

How to use godom

Building a small godom app in three stages: a counter, two islands on one page, then a multi-page layout with a shared-state dashboard.

May 9, 2026Go

The thin bridge: keeping bridge.js dumb on purpose

godom's bridge.js builds DOM, applies patches, and forwards events. It does not evaluate expressions, hold state, or make decisions. The constraint is the feature.