[Nix-dev] fetching a single file (not an archive)

[Mathijs Kwik]

Hi all,

Sometimes a derivation I want to write only consists of 1 file (like a
perl script or a .jar file).
With my limited knowledge of nix, I use fetchurl, which then complains
about unknown archive type.

I've come across this a few times, so there must be other packages like this.
Does anyone know of any examples?

Thanks,
Mathijs