🔧 Engineer focused on the reliability of long-running systems
Incident response, SLOs, and safe change to systems that must keep running
I build small, focused tools that make real-world operations safer
Writing about reliability, and reading OSS to understand how real systems behave
Small, focused tools for teams running systems that have to keep working.
- pgincident — a live terminal dashboard for the first 30 seconds of a PostgreSQL incident: connections, locks, long queries, idle transactions
- colref — find every live reference to a database column before a risky schema change (Rails / Django)
- gomarklint — catch broken docs and links before your readers do
- tinytap — eBPF-based traffic capture, making server-side request flows visible (work in progress · learning project)
I write about keeping long-running systems reliable — and about the OSS I build.
Zenn in Japanese · dev.to in English
Systems & CLI • Web • Data • DevOps
