don't think of a "luddite" comment, but, apart some online tool, like websequencediagrams or drawio, I find a necessity to just doodle some informal diagrams wi

don't think of a "luddite" comment, but, apart some online tool, like websequencediagrams or drawio, I find a necessity to just doodle some informal diagrams with pen and paper, mostly to understand the "hi-level" architecture of a solution (where "hi-level" spans from source modules dependencies to microservices / db dependencies to "macro" stuff)