I'm a developer and product manager.
Here are some of my go-to technology choices:
- JavaScript/TypeScript
- React
- Next.js or Vite (depends on the project)
- GraphQL
- PostgreSQL
- Jitsu (analytics and ETL)
- Redshift
- DBT
- Redis
These are some of my favourite side projects:
https://replicant-bounty-hunter.particlesystem.com/
- Game originally made for the Spring 2025 React Jam
- Built with PixiJS React.
- Work in progress.
https://github.com/sketchbook-js/sketchbook/
- Open source.
- A cross between traditional design tools (e.g. Sketch or Figma) and component documentation tools (e.g. Storybook).
- Makes it possible to create mock-ups using live components pulled directly from the codebase.
- Aimed at low-fidelity UX work where the primary focus is working out the broad brush strokes.
- Work in progress.
https://github.com/haydn/elo-estimator
- Open source.
- Tool for estimating work on a backlog by ordering issues by relative effort.
- Automatically estimates effort using an Elo rating system.
- Work in progress.
You can learn more about me on my personal website:
You can message me on BlueSky:
https://bsky.app/profile/particlesystem.com
You can also email me:
name: haydn
domain: particlesystem.com
email: «name»@«domain»