this is not specific to Guix, but because applying patches is central in
the Guix workflow, I argue I can ask here

Erik Edrosa sent a patch to the dev list containing a very cute Guile
Scheme package he made

I attempted to apply the patch onto a fresh Guix master and the patch does
not apply, I don't know why

I also attempted to apply ng0's patches related to gnunet, they don't apply
either.

Doesn't any patch apply ? Why ?