Is there such thing? Id rather not use KMS cause its a low spec's PC, I'm deploying this for a single pxe-boot image to 3 dozens of PC with different motherboards, so HWID gen is not an option. From my understanding it's tied to Motherboard HWID and microsoft account, can't use ms account either
Unless you fork out cash for an MAK, KMS is the only viable solution and barely uses any system resources.
a simple kms server/emulator on the same lan (*nix/w32 based) taking requests from a win10 client doesnt put any extra workload on the client os that its not already taking (kms/permanent or otherwise).
You can also activate with KMS without installing it as service, you need to do re-activation every 6 months.
HWID's can be generated (on the fly) on all hardware. What would KMS activation have to do with slow pc specs?