Is there a sane working presentation of Account Linking anywhere?

[alex-96-eng]

All the guides I have read:

• Auth0 Account Linking Extension not working? - #7 by lihua.zhang
• Account-replacing instead of account-linking
• Account Link Extension

And repos I have found:

• GitHub - auth0-samples/auth0-link-accounts-sample: Examples of how to implement account linking

Seem to produce buggy/non-working solutions. Can someone point me in the right direction to an end-to-end implmentation of Account Linking? Thanks.