Why not try to combine it with some right-to-repair-friendly stuff? If, after the cessation of support, you release any and all source code and documentation ne

Why not try to combine it with some right-to-repair-friendly stuff? If, after the cessation of support, you release any and all source code and documentation needed for any person competent in the relevant sciences and arts to maintain the device and repair any CVEs, you're off the hook for liability. I had played around with the idea of requiring support for 3/5/7/10/whatever years after the cessation of sale, kind of like how car manufacturers are required to offer parts support for 10 years after sale, but I can see that causing enough overhead that many tech devices simply would never get made.