Subject: Re: bug#57990: Add package: python-mat2 (remove metadata from images to improve privacy)

From: Tobias Geerinckx-Rice <[email-masked]>
Date: Thu, 22 Sep 2022 06:21:34 +0000

> can I express "any version of ffmpeg"?

No, this would go against the goals of Guix: packages can't depend on properties of the environment they'll end up in (if any).

They must be self-contained, or use standard features like $PATH et al to find optional dependencies at run time, but these will have to be provided by the user/manifest/whatever.

Sorry,

T G-R

Sent on the go.  Excuse or enjoy my brevity.