Stories by syumei

Rootless Container Sandbox for Claude Code and Codex

Pure-Rust, Sandboxed, Browser for Claude Code / Codex

A Lightweight Rootless Container Sandbox for Claude Code and Codex

Building a Pure-Rust, Sandboxed, Local-First Browser for Agents

A Pure-Rust, Sandboxed, Local-First Browser for AI Agents: H5i-Browser-Light

I got a browser running inside the terminal and let Claude Code control it

In-terminal browser: do Kitty animation deltas beat full-frame updates?

In-terminal browser inside a local sandbox for Claude Code

In-Terminal Jupyter Notebook for Agentic Data Science

A Terminal-Based Jupyter Notebook That Helps Claude Work Like a Data Scientist

How Polymarket Works and How to Backtest Prediction Strategies in Python

Python-based backtesting for Polymarket, with h5i-db

Do your backtests ever hit i64 limits?

Why AI Agents Need Databases That Branch Like Git

Why Fast Branching Is Key to AI Agent-Era Databases

h5i-db: Fast Embeded Time-Series Database Written in Rust

New Time-Series DB Written in Rust, 4~5x Faster Than Polars, DuckDB, and PyArrow

A Rust-based time-series DB for quant workloads (4.5x faster than DuckDB/Polars)

Multi-Agent Design Patterns – Part 1: Separating Coder and Tester

Tile-pack repos, files, and prompts into images for 60–75% fewer Claude tokens

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