You boot a verified live image, then install by having Spark pull a pinned set of packages from packages.lucern.org so those same versions are what you get on the next machine.
It is early. There is no graphical installer.
Lucern is for rebuilding a Linux install on purpose — same pin set whether that machine is a workbench or something you ship on. If you want a finished desktop with a one-click installer, this is the wrong page.
Boot the live ISO with UEFI (Secure Boot is unsupported).
Partition and mount a disk. The live environment is a root console.
Run Spark so it can reach packages.lucern.org and install the pinned packages. Spark does not copy the live system out of RAM.
Reboot from the disk alone. If the ISO is still attached, you will land in live again.
No. You partition and run Spark yourself.
No. Spark needs the network for packages.lucern.org.
The ISO is still in the boot order. Boot the disk only.
lucern.org/download/iso — check the sha256, then boot with UEFI.
Download the live ISO