Cool. Timelock transactions is another neglected part of the market. 

There are other multisig wallets but this looks by far the easiest. 

But many folks don’t care about multisig. Better security available with time locks and nobody is working on it. Low hanging fruit. 

Combining multisig and time locks would be epic. Example: 3 of 3 for next 50,000 blocks, 2 of 3 after that for the next 50,000 blocks, 1 of 3 after that