the zexy external is a collection of externals for miller.s.puckette's realtime-computermusic-environment called "pure data" (or abbreviated "pd") this zexy external will be of no use, if you don't have a running version of pd on your system. check out for http://pd.iem.at to learn more about pd and how to get it
note: the zexy external is published under the GNU General Public License that is included (LICENSE.txt). some parts of the code are taken directly from the pd source-code, they, of course, fall under the license pd is published under.
make sure, that pd will be looking at the location you installed zexy to. ideally install zexy to some place, where pd already searches for libraries, e.g. "~/.local/lib/pd/extra/" (linux), "~/Library/Pd/extra/" (macOS) or "%AppData%\Pd\extra\" (Windows). if this is not an option, either add the path to your "Path..." settings in pd, or start pd with the cmdline option "-path /path/where/zexy/lives" (you can omit the trailing "/zexy" component of the path)
make sure, that you somehow load the zexy external, either by adding "zexy" to the "Startup..." libraries (or by starting pd with "-lib zexy"), or (and this is the preferred method) by adding something like the following to your patches:
[declare -path zexy -lib zexy]
if you happen to find any bugs, please report them at https://git.iem.at/pd/zexy
you will need to have Pd installed, and a C-compiler (preferably gcc) as well as a GNUmake compatible implementation of 'make'.
on windows, you also need MSYS2/MinGW installed.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.