Skills

A personal library of reusable engineering techniques, recipes, and "how I do X"
notes — store once, find later. Each entry leads with when to use it.

Engineering & code

• Sandi Metz' Rules — guard-rails that keep objects small,
  focused, and replaceable (Ruby/Rails; the principles travel).
• React: Rules & Project Structure (2026) — the
  Sandi-Metz instincts for components, plus the 2026 stack (TanStack, shadcn/Tailwind v4,
  feature-based structure, useQuery patterns).
• Scaling Rails: Vertical & Horizontal — how and why to scale a
  Rails app to the next measured bottleneck (Puma/GVL, the database, jobs, caching,
  Rails 8 stack).

See also

• Rails Production Playbook — the broader Rails
  engineering reference (Engineering category).