I've got some 20g packages of desiccant that I purchased for keeping filament dry. So using them in the filament dryer itself seems like a good idea and others have definitely forged a path well ahead of me.
The difference here is that this design is really simple. It mounts to the clear upper cover through the top hole using an M4 x 6mm screw. The pouch, being large enough simply slips into the clip and is held there.
The author marked this model as their own original creation.