In this video, you'll learn how you can deploy a JAR-based backend (Spring Boot, Ktor, etc.) to a self-hosted VPS instance from Hetzner for just 3$/month. 
I'll walk you through creating the VPS instance, connecting to it via SSH, securing it via a custom user account, setting up and running a systemd service, setting up Nginx as a reverse-proxy with our own SSL certificate and custom domain and lastly how we can automate this deployment via a GitHub Actions pipeline when pushing to the master branch.