A cool project was posted in /r/bitcoin today: https://github.com/lacksfish/insure-gui (original post: https://www.reddit.com/r/Bitcoin/comments/hpyfjt/ive_built_a_tool_making_it_easy_to_inherit/)

It's an easy way to create a sweeping transaction from a Ledger device that is only valid no sooner than one year from the moment of creation (user can set this parameter). The application then creates a pdf which you can email to your heir.

The main disadvantage is that you have to move the funds to another address of yours to invalidate that sweeping transaction. Any similar projects like this existed before? Thoughts?