Lattice (github.com/marcuswebb/lattice) A lightweight service mesh for small-to-medium Kubernetes deployments. Built because Istio was overkill for our use case. ~4k GitHub stars.
pg-subscriber (github.com/marcuswebb/pg-subscriber) Postgres logical replication subscriber library in Go. Makes it easy to build real-time data pipelines from Postgres. Used in production at several companies.
Incident.md (github.com/marcuswebb/incident-md) A simple incident management template and runbook system. Markdown-based, git-friendly. Started as an internal tool at Stripe, now open source.
Blog: marcuswebb.dev Long-form writing about distributed systems, engineering management, and career growth. Published ~monthly. Most popular posts: "You Probably Don't Need Kubernetes," "The Case Against Microservices," and "How to Write a Design Doc."