KLV-Airedale
Void Linux based distro using an overlayfs layered filesystem
The heart of KLV-Airedale is a 'FirstRib' magic initrd which uses overlay filesystem to provide frugal install save persistence, typical load squashfs capabilities (including currently unique ability to load uncompressed physical directories into the layers hierarchy), and copy2ram option. Similarly small sized flexible distros are available such as KLA-OT2base (openbox/tint2 also Arch-based), KLU-jam (Ubuntu-based) and KLV-Airedale (Void Linux based).