DIY crypto inheritance on Ethereum

Hello Folks,

I just published a smart contract to handle crypto inheritance 100% on-chain, without the owner having to do anything offline.

I know there are many solutions that are trying to solve this problem, but I wanted to design my own with my logic, which is the following:

- the contract acts like a wallet, owner can deposit, withdraw and transfer
- the owner can assign beneficiaries, and update them at any time
- the wallet contains an "alive check", which is automatically updated on any transaction
- if you wanna use it as a vault (dormant), you can update the "alive check" manually
- the owner defines a "consider me death time" in years, eg: if the last alive check is older than 10 years, I'm dead :(
- once that happen, any of the beneficiaries can access the wallet and withdraw all the funds

At this point, my favorite feature: the wallet gets locked, will reject any future deposit and "answer" with an epitaph... your "last worlds" recorded on-chain that you can configure when you create the wallet.

All of the above is less then 100 lines of solidity... amazing :)

At the moment I only did the backend (github link), but I'd like to do a nice interface to make it easy to deploy. Of course, free and open source in the Ethereum spirit!

Would you give me a feedback on the logic? Do you see any pitfall or edge cases?

Thanks,
Francesco