Hello nacho-sama! First of all the UI is waaaay better than the one you had in the most recent itch release and the files are a lot more structured (had to give you some praise ngl, you did so well during the years).
I've got some constructive feedback hopefully: when dragging documents, it seems that the cursor snaps to the middle of the screen in some instances. It would add to the fluidity of surfing through docs and files if you could just drag them without any snapping.
Hope this helps and keep up the good work. Well done man and congrats on the steam release!