For any device that has a web interface, and no way of updating the cert automatically built in or via an API, you'd probably have to automate the process with

For any device that has a web interface, and no way of updating the cert automatically built in or via an API, you'd probably have to automate the process with something like puppeteer. https://www.npmjs.com/package/puppeteer https://www.npmjs.com/package/puppeteer