Library contribution style guide, preserving custom parts in KiCAD libraries

I’m going to be making my first symbols in KiCAD soon and I have a couple of questions. The first is whether there’s a style guide for the KiCAD libraries that I can follow so I can contribute my symbols. The second is, if I save my symbols in the KiCAD libraries, will my symbols be lost when the libraries are updated? I’m using apt on Linux to keep KiCAD up to date, so my fear is that when the repository is updated with new libraries, I’ll download and install them and they’ll overwrite my local libraries, which would include my custom symbols. If that is what’ll happen, what’s the canonical way to organize my symbols?


Do not store custom stuff in the kicad system libraries and you should be ok. A guide for that can be found here: Library management in KiCad version 5

And the kicad library convention is found here:

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