"Everything Bucket" for coders?

Do you use an "Everything Bucket" app or a personal wiki type app for your coding, things like maintaining code snippets archive and programming notes?

In the non-coding realm, people often talk about using Evernote, OneNote, etc. In the coding realm, there seem to be a few apps such as:

Boostnote

MedleyText

CherryTree

Do you use an app like these? Or do you just use text files and folders? What would you recommend?