This is a series video MERN stack tutorial and we going to build a full-stack web app from scratch using the MERN STACK ( MongoDB, Express, React.js and Nodejs).
User registration and authentication (maybe add Facebook/Gmail login if the series becomes popular)
Hashing password for security
Session control
CRUD operations (create, read, update and delete)
Search for events using filters (Running, Cycling or Swimming)
Sign UP for event in order to participate
Upload images to the server
Website notification using web sockets (in order to approve or refuse the Event Sign UP request)