Installation
OpenUPM
OpenUPM is an open source Unity package registry that allows you to easily install thousands of packages.
You can install this library with the following CLI command:
$ openupm add com.underlogic.toml-serialization
Git URL
Starting with Unity 2019.3 you can add packages via git url.
You can add this package by the following url: https://github.com/UnderLogic/runtime-variables
Using this method will allow you to update the package through the Unity Package Manager.
Local Package
Alternatively, you can clone the git repository and add the package locally.