Vaults => investments (ETFs)

Might be that someone has suggested such an idea, but I couldn’t find it. I would propose to create such services where accumulated money in the vault is automatically invested in certain ETFs (which person could specify) for example S&P 500 ETF (SPY) when it reaches certain level. I would love to realize that part of the money when I spend it is actually transferred to vault and afterwards invested.


It looks like a good idea

This is amazing idea -
Any progress on this since it was proposed 1 year ago?