How much do you see going on in GPL&#x27;d hardware despite tools and motivation being available going back decades? Almost nothing. Takes expensive tools, limited expertise, expensive masks for prototyping... all sorts of expenses that mean it virtually doesn&#x27;t happen unless cost can be recovered. Stuff is so outrageously expensive and difficult at better nodes that re-using proven (costly) I.P. is the norm.<p>Hence, you&#x27;re going to need something that integrates with proprietary if you want them to build on it. There&#x27;s still the possibility of a LGPL-style thing where at least re-synthesized or optimized versions of the open-source part must be re-released. However, forcing that for I.P. it integrates with would kill adoption by any provider unless they like operating at six to eight digit losses. Annually.