Re: Guix home, guix system, channels, some noob questions

[Sébastien Rey-Coyrehourcq]

Le 17/05/2022 à 12:15, Daniel Meißner a écrit :
> Sébastien Rey-Coyrehourcq writes:
>
> > If you have some example of guix home profile that use dotfile manager
> > i'm interested :)
> > I'm planned to use chezmoi with pass (https://www.chezmoi.io/) in go
> > that use git to version file.
> IIUC you can use Guix home directly and dispense with chezmoi.  However,
> I did not know chezmoi before so there might be a use-case that is not
> covered by Guix home, in principle though, Guix home is itself a dotfile
> manager.

Thanks,  in fact when i see *guix home* that was my first intention 
(like home-manager in nix).

The only things holding me back at the moment is two things :

a) doom emacs flavour, how to manage the fact that doom use straigt.el 
to maintain packages

I suppose i only save the .doom.d and ignore the .emacs.d that contain 
all packages downloaded by .doom.d/init.el and config.el

b) "password / secrets" management ?

There are two things, file to directly encrypt (like ssh key) and 
password to hide into configuration file (templating)

b.1) So, that need to encrypt/decrypt more or less "on-the-fly" the 
files using gpg/yubikey or age like yadm ( 
https://yadm.io/docs/encryption ) or chezmoi 
(https://www.chezmoi.io/user-guide/encryption/gpg/) do ?

b.2) And for templating, like replacing ${mypassword} into some 
configuration file by getting info stored into password manager like 
"pass", i also don't know how to do that.

Actually I have no idea how to do that with guile / guix home for b.1 / b.2

c) synchronization of my .dotfiles between two different OS/System : 
Ubuntu (home) / Guix (work & home)

Lot of people use Ubuntu in my work environment, so i need to maintain 
some sort of compatibility between both systems for my dotfile (before 
everyone use guix in 2030 ? :D).

I suppose guix home work well with guix on top of ubuntu ?

Best.

>   I use it for example to manage my Git config, Emacs config and
> others.  The manual has a chapter about it:
>
> https://guix.gnu.org/de/manual/devel/en/html_node/Home-Configuration.html#Home-Configuration
>
> A simple example would be the following:
>
> --8<---------------cut here---------------start------------->8---
> (use-modules (gnu home)
>               (gnu home services)
>               (gnu home services shells)
>               (gnu services)
>               (gnu packages admin)
>               (guix gexp))
>
>
> (home-environment
>   (packages (list htop))
>   (services
>    (list
>     (service home-bash-service-type
>              (home-bash-configuration
>               (environment-variables
>                '(("HISTFILE" . "$XDG_STATE_HOME/bash_history")))))
>
>     (simple-service 'git-config
>                     home-files-service-type
>                     (list `(".gitconfig"
>                             ,(plain-file "gitconfig"
>                                          "[user]
>         email = daniel.meissner-i4k@ruhr-uni-bochum.de
>         name = Daniel Meißner
> ")))))))
> --8<---------------cut here---------------end--------------->8---
>
> This would create a home-environment with the package ‘htop’, a bash
> configuration that sets the HISTFILE env var as well as the .gitconfig
> file with the above contents.  You can test this environment using:
>
>    guix home container test-home.scm
>
> This spawns a shell where your home environment is set up as specified
> but using a container.  So your actual home directory is not modified.
> You don’t have to embed all your config files inside the Scheme file
> directly.  You can also load from other files, for example, you could
> replace the ,(plain-file ...) call with a ,(local-file "gitconfig.txt")
> which would use the contents of the file gitconfig.txt which lives next
> to your Scheme file for the generation of the .gitconfig file.
>
> Best
>
> --
> Daniel

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