Looks good to me, but I'm not a 2 of 3 sig fan. But that is just me. I rolled my own method of securing all sensitive data and not just seed phrases. The downside to going this route is one needs to have some tech skills. Here is some background for doing the same should dare to learn.

Yakihonne

A Quick Overview of VaultApi

Self-Hosted method of securing data

Yakihonne

Cody & VScode analysis of VaultApi

Using the AI coding agent Cody and VS Code