First download the repo
git clone https://github.com/sudo-JACT/Sound_Havoc.git
then cd in the repo directory
cd Sound_Havoc
now you have to compile the plugins, cd in the plugin directory, cd another time in the src directory, then using cmake make the Makefile and then compile the plugin with the makefile
cmake CMakeLists.txt && make
after that you have to move the directory "plugin_name.lv2" in your .lv2 directory
mv ../plugin_name.lv2 /home/username/.lv2