Hi! Imagine for a moment that your next project required you to develop a lot of functional analysis and PDE theory in Lean. Would you be tempted to build that on top of what you've done (or will have done) with condensed sets?
On the other hand, it should be a lot of fun to see if we can formalize the new proof by Clausen--Scholze of Serre duality. Using their machinery, the proof should simplify a lot. But this requires building complex analytic manifolds on top of condensed mathematics. So we would first need to set up those foundations.