Self-hosted dev sandboxes with preview URLs (Docker, Go, no K8s)
Summary
The article describes sandboxed, an open-source backend that enables self-hosted, per-user dev sandboxes with live preview URLs. It runs on Docker with a Go-based control plane, Traefik for routing, and SQLite for state, without Kubernetes, to provide isolated environments, coding agents, and instant previews. It includes a quick-start guide, API reference, architecture overview, and production guidance on TLS and deployment considerations.