Things we've shipped, in roughly the order we shipped them.
We keep this list deliberately short. Most of what we do happens inside other people's codebases under NDAs, but here are a handful of engagements we're allowed to describe.
2026 — DNS auditing tool for a regional CDN
A small command-line tool that walks a customer's zone, compares it against what's actually being served at every PoP, and produces a report a non-networking person can read. Two months. We refused to add a web UI; they thanked us six months later.
2025 — Migration: gRPC → HTTP/2 for an analytics startup
They had inherited an over-eager gRPC layer that nobody on the current team understood. We replaced it with vanilla HTTP/2 + protobuf bodies, deleted ~14k lines, and the p99 dropped 30%. The fix was mostly removing things.
2024 — Postgres read-replica routing for a payment provider
Their primary was occasionally hitting 100% CPU during merchant onboarding. We wrote a small connection-pool wrapper that routed obvious read-only queries to a replica and made the routing decision a property of the SQL parse tree rather than a per-call flag. Two weeks; ~700 lines.
2024 — Observability for an indie ISP
Friends with too many switches and not enough graphs. We set up Prometheus and Grafana with templates that didn't break the first time someone added a port, plus a small Go exporter for their bespoke L2 fabric. They've extended it themselves since; we haven't been called back, which we take as a compliment.
2023 — Build-system surgery on a Rust monorepo
Their CI was taking forty minutes for a one-line change. We rewrote the Cargo workspace into smaller crates, added sccache, and convinced their CI to actually skip steps that hadn't changed inputs. New baseline: 6 minutes.