I know you can build a Debian system with debootstrap. Using debootstrap it should be possible to create a custom image. The main partition could be read only with separate mounts for anything that need to be read write.

Using containers it should be possible to create a filesystem image. I think the tricky part it testing the image and then updating the existing partition. Maybe some custom ostree tool could do the trick. If not there is always rsync and btrfs snapshots.

    • hydrogen@lemmy.ml
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      2 months ago

      Well, uBlue can be as light as you want it to be.

      Some other projects I’m thinking of:

      • VanillaOS (Debian based)
      • NixOS
      • Fedora CoreOS
      • uCore (based on CoreOS)
      • openSUSE MicroOS
      • EndlessOS (Debian based)
      • blendOS

      Is it for a personal computer or a server?

    • thayerw@lemmy.ca
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      2 months ago

      Obviously, lightweight is open to some interpretation but Silverblue can be made very lightweight by simply uninstalling the default flatpaks. You’ll be left with a very basic GNOME shell and greeter, without any of the common GNOME extras. From there you could easily install your own window manager, greeter, and whatever apps you need.