Dead simple debug/testing server for Eaglercraft 1.12 and 1.12.2
Servers can be found in their respective folders (Protocol 335 for 1.12 and protocol 340 for 1.12.2)
See wiki.vg protocol version numbers for more information.
Basically, fork it, and run java -jar bungee.jar and java -jar server.jar in the corresponding folders, and it will run your very own Eaglercraft 1.12 server!
Use the paper jar instead of the default server jar for 1.12.2
Go into the web/ folder and click on the eaglercraft_opts.js file. Everything from default language, to default servers (and names!), to website title and icon, to default server to join on page load; can all be customized in this file.
With our new-and-improved EagTek:tm: 2.0 technology, you can now use vanilla 1.12 resource packs in your client. (Alternatively, to change the default textures, and without using server resource packs (which also work :D), you can still customize the .epk file using Ayun's web-based tool)
Go ask Peyton or something.