hybrid-dev - 1:8.2.24+dfsg.1-1+deb10u1 main

These are the headers used when writing modules for ircd-hybrid.
For more information on how to write these modules, see the ircd-hybrid
documentation or example_module.c in the source code for ircd-hybrid.
.
It also includes mbuild-hybrid, a shell script that simplifies building
and installation of such modules. This shell script is simplistic and
assumes a lot; if you possess clue, you will know what to do anyway.