Take apps script ID from your project and set up a local Dev Environment with Clasp. I'm assuming that you have already installed node, npm, and VS code. Clasp is an easy way to set-up a local project for our apps script project ( You don't have to do it) Set-Up Project Locally: Pick your favorite folder to set up your favorite project for local project. Use Clasp to clone the project from the apps script dashboard to vs code.
Company Mentioned
Khadka's Coding Lounge.
@kcl
As a freelancer, I create addons and scripts to automate google products such as sheets, Gmail, docs with apps script.