Show HN: I've built a nice home server OS

Category: infrastructure

Tags: immutable-os, home-server, overlayfs

Score: 5.0/10 (Innovation: 5, Technical: 6, Documentation: 6, Utility: 4)

Lightwhale is an immutable home server OS that uses overlayfs and a data filesystem to allow writable persistence only for key directories like /etc, /var, and /home, while keeping the root immutable. It automates disk detection and formatting with Btrfs RAID1, and integrates Docker data storage directly into its persistent layer. The project presents a clean approach to balancing immutability with practical server configurability, though it is still niche.

Target audience: devops, homelab enthusiasts

Repository: https://lightwhale.asklandd.dk/

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