I was coding already before LLMs but nowadays any little idea for something useful can be done on 15 minutes.

From your profile, you're a retired neurosurgical anesthesiologist so I'm not sure how much you tinker with code but if you've got a ChatGPT subscription you can just ask ChatGPT to build you useful little utilities and websites like this now.

It will publish it for you either privately or publicly under your own subdomain e.g. something.bookofjoe.chatgpt.site

Could be fun for you to try for anything you can think of.