This was a pvp 1.8 network from 2017. Everything is custom coded. The server includes FFA, Knock back FFA & Bedwars.
Also it has a fully working bungeecord core, friends and nick system.
You can find the jars of each plugin in the target folder. Otherwise you have to compile the plugins yourself. This is a eclipse workspace. So you can just open the folder in eclipse, fix the spigot import and built all plugins.