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The Framework Laptop 13 is about to become one of the world’s first RISC-V laptops
(www.theverge.com)
This is a most excellent place for technology news and articles.
The instruction set is a tiny part of the overall CPU architecture. You don't need to lock it as everything else is proprietary: manufacturing, cores, electric design, etc. Most RISC-V processors today use ARM cores and are subject to ARM licensing.