Who, how, and most importantly where, stores his work, pieces of code, etc.?

Question

Reference books

All the best! Share your experience, who stores their developments, pieces of code, instructions, etc. where. I tried a lot of different software, evernote for example, but I didn’t like it very much, I tried to simply store it in folders on my computer, but then there is no search. From the main wishes:
1. Unlimited nesting when creating a structure
2. Search by title, as well as by text
3. It is desirable, but not necessary, something like a cloud, so that from anywhere
Thank you in advance.

Answer 1

The developments are part of the projects where they were applied.
A search in the comments to the code.
Everything else is superfluous.

Answer 2

Experience is a very useful thing.
Usually, to test any idea or algorithm, I create a model project.
If it turned out beautifully, I leave it.
The folder with such projects is my personal repository.
At the root of the folder is a batch file that cleans all this conglomerate of garbage (temporary and executable files).
And it's easy to search (Far Manager - [Alt] + [F7])
For 20 years of work - almost a gig of clean sorts (not in the archive). A copy is in the cloud.