Go through below articles to get a better understanding
Below is the quick step by step guide to get started (sort of Hello World example)
Create the new folder for the project, and in Developer Command Prompt for VS 2017…
Continue Reading Nishant Rana’s Article on their blog
Step by Step – Create a very simple PowerApps Custom Component to show the GUID of the record – Nishant Rana’s Weblog
Blog Syndicated with Nishant Rana’s Permission