I ditched my Debian VM for immutable Lightwhale OS, and Docker containers have never been simpler
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Lightwhale OS is a minimalist, immutable Linux distribution that boots from a 200MB ISO directly into a working Docker Engine with no package manager or installer. Running entirely from RAM with an immutable root filesystem, it eliminates the need for regular OS maintenance. Persistent storage is enabled via two commands that format a secondary disk with Btrfs. The author successfully migrated a full home lab stack (Pi-hole, Immich, Jellyfin, Home Assistant, etc.) from a Debian VM to Lightwhale on Proxmox, using NFS mounts to share storage across containers. Key limitations include x86-64 only (no ARM/Raspberry Pi support), no built-in web dashboard, and missing CIFS kernel module requiring NFS as a workaround for network shares.
