FIELD NOTES
Writing from
the stack.
Short notes on what I build — MCP, agentic workflows, WebRTC, media pipelines, and the cloud underneath them.
Building an MCP Server Ecosystem from Scratch
A field manual for the parts of the Model Context Protocol the docs don't cover yet — gateways, proxies, transports, auth, and the small decisions that compound.
Designing Durable Agentic Workflows with Temporal
Webhook runners, polling engines, and why cron alone is not enough when you're orchestrating agents that need to survive failures.
gRPC Between Services — What I'd Do Differently
Hard lessons from wiring distributed Node.js and Python services together with gRPC — schema discipline, error surfaces, and when to just use HTTP.
WebRTC, RTMP, and the Long Road to HLS
A real-time media pipeline I shipped at Eventsmo — what worked, what didn't, and what I'd change if I were starting over.
BullMQ Patterns That Actually Hold Up in Production
Queue design, worker lifecycle, and the failure modes you won't see until you're live — notes from running BullMQ under real load at Lasius and Eventsmo.
Quiet AWS Cost Wins for Small Engineering Teams
Eight small habits that cut our bill by half — none of them are reserved instances, and most take under an hour to implement.
Unified Auth Across a Multi-Service Backend
How we built a single auth layer for Lasius — JWTs, service-to-service tokens, MCP session identity, and the mistakes that made us rebuild it once.