In your KiCad project, clone this repo as a submodule.
# In your project directory with a .kicad_pro file:
git submodule add [email protected]:ucb-bar/kicad-parts.git
Then, in the KiCad project GUI, add kicad-parts/kicad-parts.kicad_sym
as a project-specific symbol library and kicad-parts/kicad-parts.pretty
as a project-specific footprint library.