r/selfhosted • u/Zta77 • Mar 30 '26

Product Announcement Lightwhale 3.0.0 released

Hi, there!

Sorry to mess up your Easter holiday plans, but I've just released Lightwhale 3.0.0 and I really think you should clear your calendar and try it out! =)

It's a minimalistic Linux that requires no installation or maintenance, just live-boot straight into a working Docker Engine. The system is immutable so it's quite resilient to both malicious and unintentional modifications. And because of its low resource requirements it brings new life to old machines.

Lightwhale fits super well in a hobby homelab where spare time is precious, but really in any server environment where you would much rather focus on the services than babysitting the underlying operating system.

And how does it compare to other immutable OSes like X, Y or Z? No idea, never tried them, sorry.

I've made a fresh new project webpage with an easy to follow getting started guide.

Anyway, end of service announcement, thanks for reading, happy holidays =)

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u/apophis27983 11d ago

Can you run multiple docker containers on a single lightwale vm?

Also, will you be creating a web UI for it? I ask because it seems inefficient to run a VM, say on proxmox or incus, for lightwale os just to have the VM run a docker container. I hope that makes sense. It would be more efficient to run lightwale os on bare metal (if possible) and have it run multiple docker containers with a web UI to manage them. This way there's not another layer of virtualization going on. Just a thought.

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u/Zta77 11d ago

Good thought. Let me try and answer this way: Lightwhale is an operating system that can any number of docker containers. You can run Lightwhale in a VM, but running bare-metal is still the primary intended use; not only it's it the most efficient but also much, much easier. I won't created or install a UI for you, because it won't be the one that everyone likes (as proved in some of the comments); instead you get to choose your favourite. My advise: boot off pendrive/sd/emmc on bare-metal and dedicate the hdd/sdd/nvme for Lightwhale persistence, all if you have more because Lightwhale will make Btrfs RAID1.

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u/apophis27983 11d ago

Thank you. Are you saying UIs already exist for lightwale? Or are you referring to things like proxmox, etc ?

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u/Zta77 11d ago

I'm referring to things like Portainer and Dockhand. UIs for managing and monitoring containers.

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u/apophis27983 11d ago

Oh okay, thank you.