Having to change the package list in two places was a bit redundant. We
can also use `with` patterns now since nixd warns if there are escaping
variables being used.
Note that variables used in multiple places are kept to make it easier
to recognize that those variables must be changed together. Also note
that inherit (pkgs) inside of mkMerge are currently kept to reduce the
diff.
This setting causes some videos to experience lagginess on my iGPU. In
the future it may be useful to enable the new profile "high-quality" if
I have a dedicated GPU.
Note that in addition to setting the profile to high-quality, it's also
possible to use "vo=gpu-next".
See: 703f158880
