add a substitute server and thoughts for improvement

[Gottfried]

Would somebody be so kind and show me this part of his /etc/config.scm

file in order to know where and what I should put there, so that I can

add "bordeaus-guix.gnu.org as a substitute serve?

I checked the manual, but I am not able to do it on my own.


In order not to loose electricity, (which is not good for the 
environment), time (makes a lot of pressure) and hope (guix should 
create hope) when after a "guix package -u" the substitute is not built 
or fails, and my computer has to compile the source, which takes a long 
time,

could not a developer of guix add options:

1. that we are warned about it (that a substitue is not available at the 
moment)
2. that there are options to cancel upgrading one ore more packages
3. that approx. so much time it needs to build the source of a package 
(if that is possible)
4. a question, if I want to use a different substitute server, and if yes
5. an info if on that different substitute server this substitute is 
available,
6. and if not, to cancel this ore more specific package to upgrade.

Guixers could still add other options, which I am not aware of it at the 
moment.

Do guix developers read our questions or do we have to send it to a 
specific email address?

Gottfried






Gottfried