Quick idea: even though Chromium (not Puppeteer) is quite power hungry, you only need to run it once every update period and then take a archive/dump of the out

Quick idea: even though Chromium (not Puppeteer) is quite power hungry, you only need to run it once every update period and then take a archive/dump of the output that gets fed to the screen, then use this cache copy while shutting down Chromium.