01:21 <mkk_> [Riking28, skywater-pdk] Preferred and guaranteed is still Apache 2. If you don't want that, probably just use straight GPL to be safe for November

01:45 <mkk_> [Trevor Clarke, skywater-pdk] I intend to use Apache 2 for my stuff but there are proven cores (often FPGA proven) on opencores that are often gpl and lgpl

01:48 <mkk_> [Riking28, skywater-pdk] If there's an lgpl library you want to use, it's trivial to just upgrade to gpl for your stuff