I don't know, but it would be really great if you could do apt rollback=2011-01-01 And have everything installed exactly as it would be if I had installed

I don't know, but it would be really great if you could do apt rollback=2011-01-01 And have everything installed exactly as it would be if I had installed everything in 2011-01-01 after running `apt update`. I think this is basically what Nix is?!