Here you can find a list of useful pages
SpigotMC: https://www.spigotmc.org/resources/buildsystem-1-8-1-15.60441/arrow-up-right
Chunkfactory: https://chunkfactory.com/product/buildsystem-1-8-1-15.1049/arrow-up-right
MC-Market: https://www.mc-market.org/resources/12399/arrow-up-right
