Note to self: following [this comment in desispec PR#2239](https://github.com/desihub/desispec/pull/2294#issuecomment-2239732225) by @sbailey, make sure the next update to the desispec module at KPNO defines ``` FIBER_ASSIGN_DIR=$DESI_TARGET/fiberassign/tiles/trunk ``` in the module config file.