[zyberzero]

You can do most of the setup right from the UI nowadays. I rarely resort to yaml-files, and if I do it is because the integration is old (and probably not that many that uses it - I can think of two integrations on top of my head that I needed to configure with yaml, traccar for tracking my bike and my local public transport organization) or it's something really special special (I have a thing that calculates the block of the cheapest two hours every day to schedule my dish washer, that was tricky to do OOB in the UI).

Otherwise it's pretty straight forward nowadays!