First, I apologize if the English language has a problem, secondly, there is a site for managing clients and their subscriptions and connected to a bot in Telegram so that the client can log in and change edits via Telegram, and there is a control panel on the site and this site was made with Next.js I am sure that this site was created from open source code and I want to know the name of the script

My attempts were simple because I don’t know much in npm and next.js I searched GitHub and some other texts, but to no avail