I'm using Sonic Ether's Unbelievable Shaders. Only problem is that they are kind of laggy, I get about 50 fps on average with some spikes to the low 40s and I have a 1080ti.
Not official by any means. Players will need to be whitelisted, so post your account if you want in. This should go without saying but this is a no griefing/PVP server, and basic protections like LogBlock and chest locks are in place.
Additionally, I wanted this to have more of a community feel to it, so there is a world border in place. I wrote a plugin that will automatically expand the world border as certain server-wide objectives are achieved (e.g. x amount of global wheat harvested, x amount of coal ore mined, etc.). The goal here is to encourage ourselves to co-exist as a community by forcing ourselves to live in at least somewhat close proximity. Note that these milestones are a combined total of everybody's contributions; the world border will expand for everybody at once when the server's progress causes the world to be too small.