[codingdave]

Self-awareness and self-motivation.

I worked for 5 years in a fully remote company, and every single new hire spent a few months iterating and tweaking their own work life -- their office setup, working hours, home life, etc. You have to be able to do that, and manage yourself in general, to be effective. There is nobody there telling you how or when to work, when to relax, when to slack off or not, etc.

Everything else can be practiced and learned, but to be remote it is a fundamental requirement to have the ability to manage thyself.