My story: LinkSaver
Node.js
Express
MongoDB
Mongoose
Joi
Bulma
AWS EC2
Let's Encrypt
A web app that helps quickly share links between devices on the same WiFi.

This app takes advantage of the fact that most home Wifi routers create a NAT network, presenting a single IP address to the internet. The server then uses the IP address of the incoming requests to present the same links to different devices on a home WiFi.
The project is written in pure JavaScript and uses the Express.js for the server. Mongoose and Joi are used for data validation, and MongoDB for data storage. The front end is built with Bulma.
The project is hosted on an AWS EC2 instance, and uses Let's Encrypt for SSL certificates.