Comment by znpy

most stuff don't work, and don't stand the test of time.

anyway, here is what's has been working for me:

for physical stuff (documents, printouts etc): a dumb file organizer box, one of those where you can hang those hanging manila folders. and of course a few such folders. I bought fifty such folders some years ago, have used about half so far?

for digital stuff: a simple mediawiki installation. it's hosted at home and it's not accessible from the public internet. the visual editor makes it low-friction to edit, the categories system works well enough, a page can belong to more than one category and there's always a search function that works well enough.

the nice thing about mediawiki is that you can upload and embed images, you can link to other systems (like files in nextcloud) and you can upload whole files and link to them from various pages.