Kamal Overview Kamal (formerly MRSK) deploys containerized web apps to any server — VPS, bare metal, cloud VM — with zero downtime and no Kubernetes complexity. Created by 37signals (Basecamp/HEY), it uses Docker + Traefik to manage rolling deployments, SSL, and load balancing. Configure once in YAML, deploy with one command. When to Use - Deploying to VPS/bare metal servers (Hetzner, DigitalOcean, Linode) - Want zero-downtime deployments without Kubernetes - Migrating off Heroku/Railway to self-hosted - Need SSL, rolling deploys, and health checks with minimal config - Multi-server deploymen…