App idea for the chronically ill

If I’m fortunate enough to live long enough for my son to be an adult I want to create an app that’s an entire care guide for your child, as if you explained everything to them. I’m talking about the little things that parents pass down to their adult children as they grow up. Like what to do if you burn yourself, or how to cook a special recipe. <br><br>It would allow you to add photos, videos, and voice memos, and create categories such as medical, cooking, or relationships. It could have a spot for special memories and journal entries as well. <br><br>I would want the data to be accessible from anywhere, but also downloadable on local devices in case they end up in a situation without access to the Internet.