Hi, I'm Phil Chen (fahchen).

I’m a full-stack software engineer with a primary focus on Elixir and TypeScript, along with related frameworks and tools. I’m currently writing some Rust code too. I love building products and contributing to open source, and I actively contribute to the open source community.

Aug 3, 2026

Suikou: A Workbench for Thoughtful Review

Suikou is a local review workbench for reading files and diffs, leaving precise feedback, and iterating with an agent.

  • Productivity
  • Agent

Jul 30, 2026

Cross-Context Change Propagation in Elixir

How to coordinate changes across Elixir bounded contexts using workflows, domain events, Oban, and PubSub.

  • Elixir
  • Architecture

Jul 28, 2026

Anti-Corruption Layers in Elixir: A Boundary for External Integrations

Using an anti-corruption layer to keep payment provider details at the boundary of an Elixir application.

  • Elixir
  • Architecture

May 17, 2026

Introducing Musubi: Live Data for Elixir and JavaScript

Musubi brings server-authoritative state to Elixir and Phoenix applications with JavaScript and TypeScript clients.

  • Elixir
  • JavaScript
  • Architecture

Apr 6, 2026

Building TypedGql: A Compile-time GraphQL Client for Elixir

How I built TypedGql, a compile-time GraphQL client for Elixir that validates queries at compile time and generates typed responses.

  • Elixir