Yo, same! I've been working on a Minecraft server for like 7 years now, it has some features that not many other servers have, and some features entirely unique to it. All within the bounds of Vanilla Minecraft and Server-side Plugins.
My server has got a whole power/industry system with unique resources, and lets not forget, Block-based starships that players get to build, fly around, and battle with, using custom ship-based cannons and everything!
Ive recently been trying to get the server more lively and maybe we'll draw in more active players, maybe you could help?
(Also I've been the only developer for its entire existence, so far)
Here's my Discord Server if you're interested:
https://discord.gg/Czt3ZfVJGA