Just this bit already:
Jul 19 2018
Acknowledged and I'm lagging behind. You can expect an answer somewhere between mid August and beginning of October.
Apr 29 2018
Basically you can configure guix with your own arguments. prepending /opt/ by default would make the path in some cases too long. You can have a custome store path, but this implies that no substitutes from official, central, buildfarm will be usable (however you can run your own substitutes server). You could mount /gnu/store to /opt/guix or some other location. If you would have read the chat content (which I assume you didn't), you would see some insight into the problems and what possible solutions there are.
Mar 19 2018
@HulaHoop I think at this point we should start a discussion on guix-devel and/or whonix-devel mailinglist for this. If you read https://gnunet.org/bot/log/guix/ of 2018-03-19 around ~21:40 - 22:00 UTC (note: our log bot is not logging this at the moment it is written, so it'll appear later online) you will find a braindump one of us did + a discussion on the subject of Debian+Guix. I can not speak for the project in the position of a maintainer, this is not my position to take.
Mar 16 2018
Back on topic. [Disclaimer: I'm just a contributor to Guix, I am not one of the maintainers.]
A recent chat with lynX made me think about an alternative approach you maybe haven't considered yet:
Mar 8 2018
FYI, I started working on the tor browser package for Guix, building from source, unlike the Nix package. This is in a similar style to poncho's torbrowser-overlay for Gentoo.
Oct 30 2017
A short update on torbrowser in Guix:
Jul 3 2017
"We" and "ours" in the text below refers to infotropique, not Guix.
Jun 25 2017
I want to clarify something:
the GNUnet "guys" in this case is just myself at the moment.
Torbrowser is not considered my priority, but it will definitely happen at some point within the next years.
That's a revised priority list, as I'm currently in the process of writing infotropique OS which is currently a one person job on the development end.
I'm not getting full time paid for this, so this is worked on whenever I have the time, hopefully at least part time.
More details can be found later this year in an published handbook.
I try to keep the forks with Guix as little as possible but they are not avoidable. One of the many individual ideas is use of a different libc (musl).
Torproject software is not the priority of infotropique OS, but I'm not throwing it out, so torbrowser could still happen in either Guix or infotropique.