Cronhq is a cron job scheduler built in Rust on Postgres that calls webhooks on a schedule. It runs each job exactly once across workers, retries with exponential backoff, signs webhooks with HMAC-SHA256 and offers heartbeat monitors. Schedules can be written in natural language or managed as code via a CLI and YAML. Alerts fire on the third failure in an hour rather than every failure. Aimed at developers who do not want to run scheduler infrastructure.