ZSvirt is available for production use at no license cost, matches ZStack's commercial edition in features and supported scale, and includes agentless migration tooling at no additional ...
So then do that. There's nothing stopping you from shipping your program with KDiff3, and nothing stopping you from creating a private installation if desired. A DLL doesn't really solve anything here ...
Built on Zephyr RTOS with a modular architecture, ZGM is published under GPL 3.0 and designed to support hardware beyond Keychron's own products.