Where's the source code? :) Is Hacker News the only source of the offers?

From the site's <META> tag, it looks like they are scraping ( i.e. "aggregating") other sites also.

> <meta name="description" content="The map with the collection of jobs for Software Engineers, Software developers, Programmers, Designers and remote. Aggregator of job post from Hacker News, Stack Overflow, Github, and many more ...">