One was related to smart cupboards (fitted with weight sensors and cameras) that can automatically account for every item you put in or withdraw from it.

Another one was related to furniture modifications so that it efficiently utilizes space according to the need (similar to many modular furniture concepts). One of these ideas, I have documented here: https://avikalpg.github.io/blog/articles/20210923_proj_dual_...

Simpler ideas were the same as the original post: an app for everyone in the house to keep track of inventory or chores. I was thinking more about chores because someone might have done a chore I am unaware of - so I might either make duplicate efforts or procrastinate. But this is not a great idea because 70% of this can be solved using a WhatsApp group and asking everyone to update it whenever they pick or complete any chore.