How do you organize/document your automations?

I am getting into more of the automations that are if/then/else or choose logic/trigger ID. I am getting lost in all the arms of the logic. Case in point my kitchen and the lighting based on time of day and lux.

How do you (1) document your automations and (2) plan them out? Excel? Some other tool?

I’m sure someone has a clever solution they have been wanting to share. I’m all eyes.