i also made a hubworld (i posted the images for the directions on the server!)
To find it: First go through the green path on the main Nexus , then, go up on the forest passage! You will find this park full of toriningen, if you go down and follow the branching path to the right it will lead you to the garden, and on the bottom right you will a find a teleporter, go through i.You'll be taken to a park with snow and grass stripes, then you'll go this way between the lamp posts on the green stripe. this will take you to the forest pathway. go up and you'll find the crossroads. go left and you will find the hub world!