Dynamically set hours_to_show in mini-graph-card based on time since a specific date

Configuration Frontend
6

1st, question related to config-template-card (CTC) should be discussed in the dedicated main thread.
In short:

  1. Declare all sensors used in mini-graph-card (MGC) as “monitored by CTC” - add them to the “entities” option. Then CTC will update the whole inner card when any of these “monitored” entities changes.
  2. “Update of inner cards” = full redraw, it may causes undesired flickering, slowing down etc.
  3. Placing a card into CTC creates additional layer between the inner card and HA → slowing down, inability to get changes real-time etc. I would not recommend placing any graph card into CTC (although myself do it).