* Revert "remove cache on /status and /health for now"
This reverts commit 166b0d810cd25b895560d50d00383a57e1269ad4.
* Revert "remove cache on backups needed, too"
This reverts commit 4597967def2f1daa71a277ec6731db4739ead640.
* add tests
* add max_item_weight
* comment
* add some helper functions, max weights, and tests