See who did what on shared resources — every create, edit, and delete tracked with actor, timestamp, and the before/after change. Surfaced as an Activity tab on each shared resource.
Also: split a single transaction across multiple users (e.g. “this $100 grocery: 50% Alice, 50% Bob”) and add finer permission controls beyond just read/write — hide amounts, edit-not-delete tier, restrict who can edit categories or account metadata.
Part of: https://moneymatter.featurebase.app/p/household-sharing-umbrella
