Another thing I forgot, the author wrote a good guide on their blog in:
https://randhome.io/blog/2018/02/23/harpoon-an-osint-/-threat-intelligence-tool/
--
The steel horse fills a gap in modern life, it is an answer not only to
its needs, but also to its aspirations. It's quite certainly here to
stay.
- Le Vélocipède Illustré, 1869