Wire Desktop is available for linux, mac os and windows. I figured
adding darwin support would be cromulent. Note that the versions don't
align 100%, this is how it's released upstream.
I refactored the derivation to seperate all the linux-specific parts. I
also sorted the dependencies and grouped them.
The changes were based on the derivation for electron. I changed the
construction from calling `mkDerivation` on a conditional merger of two
sets by moving the `mkDerivation` calls into the conditional and up to
the local bindings for `linux` and `darwin`. This required moving
`pname` and `meta` up to local bindings.
Added a `longDescription` and `downloadPage`. Also added myself to
`maintainers`.
I fixed up the `license` because it's actually GPLv3 *or later*.
Note that terms and conditions apply though I don't feel like they
violate the GPL-ness of the code.