Funky Penguin's "Geek Cookbook" is a collection of how-to guides for establishing your own container-based self-hosting platform, using either Docker Swarm or Kubernetes.
Running such a platform enables you to run self-hosted tools such as AutoPirate (Radarr, Sonarr, NZBGet and friends), Plex, NextCloud, and includes elements such as:
Automatic SSL-secured access to all services (with LetsEncrypt)
SSO / authentication layer to protect unsecured / vulnerable services
Automated backup of configuration and data
Monitoring and metrics collection, graphing and alerting
Recent updates and additions are posted on the CHANGELOG, and there's a friendly community of like-minded geeks in the Discord server.