Not tested but looks ok. Could you extend the documentation a bit? Maybe add the expected type of data for the service and an example on how to use it with modify-services? With lirks to relevant sections.

Le 15 mars 2021 14:56:06 GMT-04:00, Leo Famulari <leo@famulari.name> a écrit :
>On Fri, Mar 12, 2021 at 05:51:21PM -0500, Leo Famulari wrote:
>> Does anyone know how we could make it possible for users to change
>these
>> new defaults?
>
>With assistance from roptat on #guix, I wrote these patches that work
>well and meet all the requirements I had in mind.
>
>Your thoughts? I'd like to push this soon.