Secrets Vault within TiddlyWiki5

[BurningTreeC]

Hi, I often find myself writing a secret like a password into one of my encrypted Wikis
What I'm thinking of now is that we could create a "Secrets Vault" that stores such secrets encrypted from the beginning without ever having plain text in a tiddler
The secrets vault would be a tiddler like $:/secrets/vault that stores secrets in its fields
We could use the built in encryption and shadow DOM to make this as secure as we can

I would then propose a special syntax like §[secret:my-special-password] that displays a secret
The secrets vault can be unlocked using the password that is initially set when setting up the vault
When the vault is unlocked, clicking a secret reveals it
The vault will auto-lock after a given time to make this more secure

I have built such a vault and would like to show it here if you think this could make it into the core
What do you think?
I will post a screenshot / gif later when I'm at my desk

[BurningTreeC]