NixOS: Desktop files contain store path

[theCapypara]

On NixOS the generated desktop files contain the full path to the winapps executable using the Nix store path:

Exec=/nix/store/z7avvzmfv3prvn6zsz0abyadhfl292qp-winapps-0-unstable-2025-07-02/bin/winapps windows %F

These paths will break with updates when the garbage collector runs. Even if that is disabled, this path will always point to the version that the desktop file was originally installed with, and not the current installed version. The paths should probably be generated like this:

Exec=/run/current-system/sw/bin/winapps windows %F

[oskardotglobal]

Do we have the /run/current-system/bin path on non-NixOS setups though?

[theCapypara]

No, they should only be generated like this on NixOS.

I think what would also be fine is to just have Exec=winapps windows %F, since winapps should be in PATH anyway.