'But, by the end of 2019, ATI had collapsed. The company’s closure left Möllmann-Bohle and more than 700 other people alone with a complex implanted medical device. People using the stimulator and their physicians could no longer access the proprietary software needed to recalibrate the device and maintain its effectiveness. Möllmann-Bohle and his fellow users now faced the prospect of the battery in the hand-held remote wearing out, robbing them of the relief that they had found. “I was left standing in the rain,” Möllmann-Bohle says.'
https://www.nature.com/immersive/d41586-022-03810-5/index.html
@cyrilpedia Bad enough to be held hostage by a proprietary document format (where the only pain is that you have to buy editor you don't like from company which works). Being hostage to an unsupported electronics in your body is ways worse. Either the support continues or all the design files go public and opensource, this should become an enforced norm.