Documented here:
Responsible configuration file:
vm-config-dist/etc/wlr-resize-watcher.d/30_default.conf at master · Kicksecure/vm-config-dist · GitHub
Unrelated to How to compress and prevent vdi from "ballooning" after each update & deleting large files? - #41 with certainty.
Responsible source code file:
vm-config-dist/usr/lib/python3/dist-packages/wlr_resize_watcher/wlr_resize_watcher.py at master · Kicksecure/vm-config-dist · GitHub