The library has lots of nooks and crannies hidden by falseweave. The nexus towers by comparison are fairly plain since they are a solid pillar. My suggestion would be to revamp the nexus tower so that you have falseweave in the structure near the warp nexus covering a staircase down to a room or a few small rooms with a few chests and items as if it is a small wizards outpost that wizards could teleport into to rest/resupply.