I’m reading the Nix Thesis by @edolstra right now and found chapter
7.5 Patch deployment very interesting. It seems like a non-trivial but hugely beneficial optimization and was wondering whether it was currently implemented in nix and nixpkgs?
I looked in the manuals but found no mention of it, which makes sense as it would be an implementation detail, transparent to the user.
From my own use of nix, I can’t really tell either. If I had to guess I’d say it’s not implemented.