A wide collection of functions which extend the Wolfram Language.
Install with the following command (replace 0.0.0 with the latest version digits):
PacletInstall["https://github.com/arnoudbuzing/prototypes/releases/download/v0.0.0/Prototypes-0.0.0.paclet"]
Alternatively you can install the latest version with:
Needs["MPM`"]
MPMInstall[
"arnoudbuzing",
"Prototypes",
"AllowPrereleases" -> True
]
A prerequisite for this method is the installation of this utility: https://github.com/kubaPod/MPM