https://ctan.math.washington.edu/tex-archive/graphics/pgf/contrib/kksymbols/
Index of /tex-archive/graphics/pgf/contrib/kksymbols
index oftexarchivegraphicspgf
https://www.ctan.org/ctan-ann/id/491532451113f113@hogwart
CTAN: CTAN-ann - CTAN update: KKsymbols
ctanannupdate