WritingRust, Next.js & AI engineering

Long-form notes on production incidents, distributed systems debugging, AI engineering with AWS Bedrock, modern Next.js SEO, and Rust + WebAssembly performance work. Articles are published here; some are also syndicated to Medium.

1. Getting Code Merged Into Meta's Pyrefly and ReductStore

   June 2026 · 6 min read

   Merged Rust contributions in two production projects — Meta's Pyrefly type checker and ReductStore. The mechanics nobody tells you: reproduce before you claim, pick deterministic bugs, and treat maintainers as colleagues.

   • Open Source
   • Rust
   • Pyrefly
   • ReductStore
   • Contributing
   • Software Engineering

2. Optimistic UIs in React with RFC 6902 JSON Patch

   June 2026 · 8 min read

   RFC 6902 JSON Patch gives you one primitive for optimistic updates, rollback on failure, and undo/redo. Here's the pattern, in React, with a Rust/WASM diff engine.

   • React
   • RFC 6902
   • JSON Patch
   • Optimistic UI
   • Undo/Redo
   • diffcore

3. Next.js SEO in 2026: A Practical Guide

   March 2026 · 10 min read

   What actually moves the needle for Next.js SEO in 2026: the Metadata API, JSON-LD, llms.txt for AI crawlers, honest sitemaps, and INP — with the App Router specifics.

   • Next.js
   • SEO
   • Metadata API
   • JSON-LD
   • llms.txt
   • Core Web Vitals

4. Fixing a Redis Polling Bottleneck in Production

   February 2026 · 6 min read

   A naive SCAN-and-check loop over a remote Redis timed out at 100 seconds in production. Batched MGET with client-side filtering cut the work ~90% and ended the timeouts.

   • Redis
   • Performance
   • Node.js
   • Distributed Systems
   • Debugging

Upcoming: AWS Bedrock streaming patterns, Cloudflare Workers + Neon Postgres RLS for multi-tenant SaaS, and Rust workers-rs latency benchmarks against TypeScript handlers. Follow on X or Medium to get them when they ship.