Tiny Puppet (tp) is a tool that allows users to easily install and manage applications on any operating system using Puppet. It provides definitions, functions, and data to configure applications using the tp command or in Puppet manifests. Key features include installing applications with one command, testing installed applications, accessing application logs, and uninstalling applications. Tp gets the data it needs to support applications across operating systems from the tinydata module, which currently supports installing and configuring over 149 applications.