Simple text files along with any sort of note organizer are a great alternative for organising zettlekasten notes. Take 7-10 articles on a subject -> diagram a

Simple text files along with any sort of note organizer are a great alternative for organising zettlekasten notes. Take 7-10 articles on a subject -> diagram and extract main sentences into a text file -> reorganize all of the extracts into an outline of what you want to write (I use a kanban board for this) -> rewrite to get an extremely condensed 'first draft' -> export back into a text file, rewrite again, and expand and elaborate to get a second, readable draft.