# What I'm using

> Updated May 2026.

## Dev

- **Claude Code** — the main coding loop
- **Codex** — when I need something a little more surgical
- **[Stash](https://stash.bar)** — capturing thoughts, findings, and context I refer back to daily
- **Terminal.app** + **zsh**

## Stack

- **Ruby on Rails** — always on edge
- **Python** — for the trading systems and CLI tools
- **PostgreSQL** — primary database, pgvector for semantic search
- **SQLite** — for anything simple (like this site)
- **Tailwind CSS** — the only way I'll write CSS
- **Hotwire** — Turbo + Stimulus
- **Hotwire Native** — shipped an iOS app with it

## Infrastructure

- **Kamal** — deployment
- **Hetzner** — self-hosted
- **AWS** — EC2 for the trading systems
- **Sidekiq + Redis** — background jobs

## Hardware

- **MacBook Pro 16"** — 2021, M1 Max, 64GB

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This is a plain-text mirror of <https://tylerklose.com/uses> for LLMs and agents.