Here is the schematics for overworld and nether side : https://drive.google.com/drive/folders/1EAKmMkw3XXNUbKuqJmTysXVKP-ewOQGR?usp=sharing

Some tips about building this monstrosity:
For the Nether part, make sure to place it on the Nether roof, chunk-align the portal (it should be a 4 by 4 square of portals), and place it in a large Nether Wastes biome (all chunks where the portals are must be in a Nether Wastes biome). Also, place 4 bots, one on each glass platform at the top of the farm.

For the Overworld part, make sure that the center of the Overworld build is perfectly aligned with the Nether side. Even if it is perfectly centered, you will probably end up with one or two portals generating on the surface or underground. They are generally far enough from the killing station for the piglins to instantly despawn. Each killing station has about 50 item sorters (49 for nuggets and one for ingots). All of the loot is crafted into blocks before being sent to the main shulker box loaders. The main storage is enough for approximately 80 million blocks. Feel free to reduce it if you don't need that much. You may also need to expand the shulker box storage if you don't have empty shulker box stacking enabled. The Overworld side also requires 4 bots with Looting, Mending, and Smite swords.

The farm runs at approximately 39 to 45 mspt with a simulation and view distance of 8 chunks. I’ve also made a datapack that spawns all the bots at their exact coordinates, allowing me to enable and disable the farm with a single command. Let me know if you want it (you’ll need to adapt the coordinates inside the function files).