I was going to say add more things to fill up the floor space so she doesn’t feel too exposed. Then saw your last question as well. Yes I would add a shoebox house - just pop it over the area where she is nesting
Then she won’t feel the need to have an underground burrow - the house mimics it, is dark inside (out a bendy bridge over the door to achieve this) and easier to maintain for her and you.
A platform is also a good idea - provides overhead cover and somewhere to go plus a place to put additional items and heavier items. You can make one or make a knuff platform (google “hamster knuff platform”).