It seems to me that you have a plan, it's just an unconventional one. You have some desires, which you articulate clearly. You could extend this to some words about what you think you need to do, to enable the plan of "follow interesting opportunities when they arise, within the broad space defined by your desires." For instance, to enable you to take up interesting roles, you may want to keep experimenting with relevant new technologies, being open to formal and informal learning opportunities, etc. That feels like a plan to me. I am required to maintain a similar plan as part of being a registered professional (chartered engineer). Mine is similar - learning new things which enable me to take appropriate roles when they appear. A big bit I usually elaborate on is: how do i identify skills or knowledge I might need for my next step, and how do I secure those skills? This changes every few years. That's OK.