i know of someone who did this.
an elderly widowed man who won a sweepstakes that did not require public disclosure of his identity. he received a large amount yearly for the remainder of his life. he had no children/relatives but a handful of a close and trusted friends that would help him make anonymous financial gifts to people he observed to be in need or who he felt were deserving. might be the neighbor down the street that was struggling to make ends meet, someone who needed a major repair or medical cost covered, the neighbor kid who was going to school getting good grades and working his butt off to save for a car but was always refusing to be paid for helping out other neighbors. my hairdresser was the recipient of one of his gifts because of her extensive kindness to her older clients (him included)-she would run errands for them, check in on them, bake their favorite treats to have on their appointment days....she was one of the only recipients to know his identity b/c of the nature of how he gifted her.
This would be independent living, while kind of "earning your keep". My goal would be to help them feel valuable to their community & have a greater purpose. I'd also work to help them find opportunities to learn trades or get a degree, if possible. Obviously, I've thought a lot about this, because I think everyone should have a roof over their head & food to eat. Now, I just need to win that lottery.
