How to Generate Thumbnails for Podcasts

For most of the last decade I've been doing overcast, I have generated my own image thumbnails for when you search for a podcast and it shows the search list. And part of that is really designing the sync protocol to be extremely efficient from the bottom up. Moving certain things to the devices too. The iPhone is really good at running certain types of AI models and and ML, you know, many of the terminologies, but you know what I mean.