Web3 Seed Vault is an application of the TACo technology inside a Metamask Snap to store and restore your seed.
This application can be a turning point in the management of confidential data, such as seed phrases, or as a password manager, but more generally it allows us to save confidential messages and share them publicly, Thanks to taco we guarantee access to data only upon the occurrence of a particular event in this case, the match with the address entered by the calls.
You can find W3VS Snap presentation video here.
To interact with (your) Snaps, you will need to install MetaMask Flask, a canary distribution for developers that provides access to upcoming features.