MyrrhTech is a free, open-source Forge mod created by Mortimyrrh and hopefully joined by a few other friends soon.
This mod is still under development. Features may not work as expected.
MyrrhTech 1.12.2. https://www.curseforge.com/minecraft/mc-mods/myrrhtech/files
Forge is required to run this mod. https://github.com/MinecraftForge/MinecraftForge
(Coming Soon)