# How does PacletInstall work? And is it possible to find packages using PacletInstall?

It seems that many packages published could be installed using PacletInstall . For example, from this Rubi install instruction webpage, we could see the comman:

PacletInstall["https://rulebasedintegration.org/Rubi-4.16.1.0.paclet"]


• What would you gain from knowing how it's implemented? It sounds like you are not asking about what you actually want to know. Anyway, you can read the code at SystemOpen@ FileNameJoin[{\$InstallationDirectory, "SystemFiles", "Autoload", "PacletManager"}] – Szabolcs Jun 2 '19 at 8:34