Solved 3rd party software download: how to determine what to use

does anyone know what this means " for FreeBSD on Cowboy" etc ? what is the "code name" indecating so I know which one to download to get the latest version?

[HEADING=1]The Latest Version of Nitrogen: 2.4.0[/HEADING]
See what's new this version in The CHANGELOG
[HEADING=1]Choose your platform for download[/HEADING]

FreeBSD Binaries
Nitrogen 2.4.0 for FreeBSD on Cowboy
Nitrogen 2.4.0 for FreeBSD on Inets
Nitrogen 2.4.0 for FreeBSD on Mochiweb
Nitrogen 2.4.0  for FreeBSD on Webmachine
Nitrogen 2.4.0 for FreeBSD on Yaws
(includes Erlang 21.3 compiled for FreeBSD/64bit)
yeah upon further inspection on that webpag having taken it for granted that it was the background image setter only yo find out someone else used that name for a web server. epic fail my fault. I was just wanting to see if I can get the latest version of it seeings how it does not have a maintniner after installing from pkg ending up DL it for git and ending up with this
char, std::__1::char_traits<char>, std::__1::allocator<char> >))
c++: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1

:D so you really were after the nitrogen-the-background-image-setter?
yeah, I just seen the version and the statement about nobody maintaining it so I googled it to see what the latest version was foiund that page and see freeBSD binaries all read to go and got confused on the naming scheme and posted and went back and read the rest of that webpage then said oops ... I should not have posted so soon and well here we are. 🤷‍♂️