CRISPR is exactly that: patching biological systems. For the cost of a weekend at a B&B with your sweetheart you can buy your own CRISPR kit and create your own patches. This includes educational resources necessary to make things like bespoke yeasts for brewing unique beer, or your own personal flourescent variety of bacteria. WWW.the-odin.com has products for sale now.
I have seen a living human patch their DNA, or at least video of them doing it. This is not going to soon be possible. It is a genie out of the bottle now; a cat out of the bag. It's in the wild.
Thanks!