Infinite Scroll Random Post (ISRP) is a FREE WordPress plugin which enables infinite lazy scrolling on each of the Posts in your website.

Get the free ISRP plugin from here.

Note:
Currently it's designed to work with every WordPress base theme. But if you would like to connect it with a custom template, it'll require a bit of touches.

Check the source code at GitHub.

What's the tech stack?

Backend:

→ WordPress Core (PHP)

Frontend:

→ JavaScript (jQuery)
→ SCSS (CSS preprocessor)