What to use to systematize knowledge?

Question

Computer networks

Recently, I have acutely felt the need to somehow combine disparate information that has accumulated in paper form, in bookmarks, on different devices.
That is, the information is supposed to be completely different. But necessary from time to time. Both individually and in selective groups.
An example of information: scripts for sites, all sorts of chips, various kinds of instructions, progress in the implementation of plans, perhaps the planning itself is partly, etc.
Tasks that I would like to solve in the end:

1. Make it easy to find the information you need in one place (this is the most important thing)
   
2. Ability to access from portable devices.
   
3. It is good if there is the possibility of automatic or semi-automatic cross-references between articles. Tagging and the rest in the same vein.
   
4. Easy to add and design entries. Glitchy wysiwyg editors in the furnace. Better something like Markdown or some other lightweight syntax. If the files are attached to the records, and not in a bunch in a folder - an additional plus
   
5. And finally: it is preferable, but not necessary, that you can deploy it on your domain or computer.
   

So far, in this context, I'm looking at dokuwiki , but a little oaky search, and storing attachments in a separate folder, without reference to the article, made me doubt the choice.
Perhaps there is a better solution?

Answer 1

Why can't you link a file to an article in dokuwiki?
I'm sure it's possible.
Well, or even look at the media wiki, but it is more voracious.

Answer 2

1/ I chose to store locally/on a flash drive/in Google Keep: text notes on the topic
2/ I'm trying to find an actual solution to replace TheBrain with correct support for the Russian language to
maintain an up-to-date knowledge base, links, etc. and preferably with a web face ;-)