Reborn Core for Minecraft 1.14+ uses Fabric. A Forge version is not planned going forward.
Join the Team Reborn team discord for support or to chat about the mods: https://discord.gg/teamreborn
Join the Fabric discord for to chat about Fabric mods in general: https://discord.gg/v6v4pMv
We recommend Creeperhost for hosting your minecraft (or other game) servers. They have provided you a discount code you can use to get a discount off a VPS server.
This mod does nothing on it's own, it's just a set of classes that the Tech Reborn team uses in their mods.
Reborn Core is a mod for Fabric, and there are no plans to port this mod to Forge.