nodemailer is a module for node.js applications to allow easy as cake email sending. the project got started back in 2010 when there was no sane option to send email messages, today it is the solution most node.js users turn to by default.

next.js is an open-source web development framework created by vercel enabling react-based web applications with server-side rendering and generating static websites.

talkjs is a developer friendly chat api with a pre-built ui that is highly customisable. you can build a chat feature in minutes instead of months.