I've been taking a break, but recently came back to finish a Fortress farm I had been constructing. It took a while and there is still potential with some spawnproofing and an item sorting system.

To find it, go into nether from main city portal, climb ladder up to the new hub, and boat (or walk?) the northern ice highway. The highway will turn west after like 1000 blocks. Remember to bring a good sword with you.

If you ever find a place in the nether where there is a lot of nether brick slabs placed, you've probably found the farm. Please do not remove them. They are there to spawnproof the area. Thank you.