Watchtower: open-source self-hosted error tracking, a drop-in Sentry replacement

emeka_boris · x · 2026-10-05

Developer olucurious released Watchtower, a self-hosted open-source error tracker positioned as a drop-in replacement for Sentry and AppSignal. It supports Slack, Linear, and email alerts, ships an MCP server for coding agents, and deploys as a single Go binary plus Postgres. The project started as something he self-hosted on his homelab for his own projects.

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