The official Guix documentation describes [The Perfect Setup](https://guix.gnu.org/manual/en/html_node/The-Perfect-Setup.html) for hacking on Guix. I have followed this description and set up everything like described, but still Geiser does not work fully. I thought that this was supposed to give me completion capabilities and make it possible to go to the definition of things. I can go to definition of some things, but only very few. Most things is not possible. Completion seems to be only based on text in the current buffer. # My Emacs configurations

(use-package geiser
  :ensure t
  :custom
  (geiser-default-implementation 'guile)
  (geiser-active-implementations '(guile))
  (geiser-implementations-alist '(((regexp "\\.scm$") guile))))

(use-package geiser-guile
  :ensure t
  :config
  (add-to-list 'geiser-guile-load-path "/home/lars/code/forks/guix")
  (add-to-list 'geiser-guile-load-path "/home/lars/code/guix/modules")
  (add-to-list 'geiser-guile-load-path "/home/lars/code/guix"))

(with-eval-after-load "geiser-guile" 
  (add-to-list 'geiser-guile-load-path "/home/lars/code/forks/guix")
  (add-to-list 'geiser-guile-load-path "/home/lars/code/guix/modules")
  (add-to-list 'geiser-guile-load-path "/home/lars/code/guix"))

# REPL I invoke the Geiser REPL in Emacs with M-x geiser-guile or M-x geiser. The output in the Geiser REPL looks like this:

GNU Guile 3.0.9
Copyright (C) 1995-2023 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)>

Note that the prompt says guile-user, but I think it should say guix-user. However, if I start the Guix REPL by running guix repl in a terminal the output looks like this:

GNU Guile 3.0.9
Copyright (C) 1995-2023 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guix-user)>

Note that here it says guix-user. When trying to 'use' the guix module in Geiser REPL:

,use (guix)
;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0
;;;       or pass the --no-auto-compile argument to disable.
;;; compiling /home/lars/code/forks/guix/guix.scm
;;; compiling /home/lars/code/forks/guix/guix/packages.scm
;;; compiling /home/lars/code/forks/guix/guix/utils.scm
;;; WARNING: compilation of /home/lars/code/forks/guix/guix/utils.scm failed:
;;; no code for module (guix config)
;;; WARNING: compilation of /home/lars/code/forks/guix/guix/packages.scm failed:
;;; no code for module (guix config)
;;; compiling /home/lars/code/forks/guix/guix/store.scm
;;; WARNING: compilation of /home/lars/code/forks/guix/guix/store.scm failed:
;;; no code for module (guix config)
;;; WARNING: compilation of /home/lars/code/forks/guix/guix.scm failed:
;;; no code for module (guix config)
;;; compiling /home/lars/code/forks/guix/guix/derivations.scm
;;; compiling /home/lars/code/forks/guix/guix/diagnostics.scm
;;; WARNING: compilation of /home/lars/code/forks/guix/guix/diagnostics.scm failed:
;;; Unbound variable: trivial-format-string?
;;; WARNING: compilation of /home/lars/code/forks/guix/guix/derivations.scm failed:
;;; no code for module (gcrypt hash)
While executing meta-command:
no code for module (gcrypt hash)
scheme@(guile-user)>

Doing the same in a Guix REPL works fine:

scheme@(guix-user)> ,use (guix)
scheme@(guix-user)>

# Go to definition Go to definition works in some places, for example in the line below:

(gnu home services)

This takes me correctly to the source of gnu home services. However, trying to go to the definition of packages does not work:

(packages (list
            htop
            git
            alacritty
            tmux))

Trying to go to the definition of any of the packages in the package list just does not work. # Completion I would expect to be able to get completions for modules and packages (among other things) by typing the start of the name of the packages, but nothing comes. Sometimes I get some random completion based on random text in the same buffer, but most of the time not even that.

[guix shell](https://guix.gnu.org/manual/devel/en/html_node/Invoking-guix-shell.html) allows users to create a shell and control what resources are available. How can I use the guix.scm file to specify an environment variable in this shell environment? In this specific example, I'm just looking for a TEST environment variable with the value 2. ChatGPT gave me two suggestions below which did not work, nor are these options defined in the [package reference](https://guix.gnu.org/manual/en/html_node/package-Reference.html) . Both give me the same error: *extraneous field initializers*. I also saw [this thread](https://lists.gnu.org/archive/html/help-guix/2022-05/msg00025.html) about the inability to define environment variables in a manifest file and one user said that it should be possible to do with guix.scm files (or, the type of files passed to guix shell with --file argument), but I'm not sure if that's correct. I tried the guile [setenv](https://www.gnu.org/software/guile/manual/html_node/Runtime-Environment.html#index-setenv) Scheme procedure but I get the error: *invalid field specifier*. Here's an example guix.scm with the three options I tried at the bottom:

(use-modules
	(guix)
	(guix build-system gnu)
	((guix licenses) #:prefix license:)
	(gnu packages bison)
	(gnu packages compression)
	(gnu packages flex)
	(gnu packages m4)
	(gnu packages tls)
)

(package
	(name "coreboot")
	(version "dan")
	(source (local-file "." #:recursive? #t))
	(build-system gnu-build-system)
	(native-inputs
		(list
			bison
			flex
			m4
			openssl
			zlib
		)
	)
	(synopsis "coreboot")
	(description "coreboot")
	(home-page "https://www.coreboot.org/ ")
	(license license:expat)
	(shell '(#:variables (,"TEST=2"))) ; Does not work
	(environment-variables '("TEST" "2")) ; Does not work
	(setenv "TEST" "2") ; Does not work
)

I'm trying to enable Bluetooth on my GUIX machine, and I do not understand [the instructions](https://guix.gnu.org/manual/en/guix.html#index-bluetooth_002dservice) : > **Scheme Procedure: bluetooth-service [#:bluez bluez] [#:auto-enable? #f]** > > Return a service that runs the bluetoothd daemon, which manages all the Bluetooth devices and provides a number of D-Bus interfaces. > When AUTO-ENABLE? is true, the bluetooth controller is powered > automatically at boot, which can be useful when using a bluetooth > keyboard or mouse. > > Users need to be in the lp group to access the D-Bus service. In particular, I do not understand the [#: part, and thus do not know what to put in my config.scm. None of the other modifications I've made to config.scm required such 'arguments' for lack of a better word. For example, extra-special-file is described simply as > **Scheme Procedure: extra-special-file file target** and contains an example and was thus easy to figure out. This does not work:

(services
    (append
      (list (service gnome-desktop-service-type)
            (service bluetooth-service))
      %desktop-services))

reconfigure gives

guix system: error: failed to load 'config.scm':
gnu/services.scm:242:17: In procedure %service-with-default-value:
In procedure struct-vtable: Wrong type argument in position 1 (expecting struct): #

Apparently the #: is a hash-colon, which is used to define a [keyword in Scheme](https://www.gnu.org/software/guile/manual/guile.html#Keywords) . But that page does not give me enough information to translate the GUIX instructions into something to put in config.scm. It feels like the GUIX documentation assumes some Scheme knowledge that I do not yet posses, and I do not really know where to start to obtain. An example would be appreciated.

On my system I have installed both thunar and thunar-volman:

$ guix package --list-installed | grep thunar
thunar-volman	0.9.5	out	/gnu/store/yp5xyyvvc59ivghszgyfwy3izd8jvqz0-thunar-volman-0.9.5
thunar	1.8.16	out	/gnu/store/4hy62y05g34hwrhlyk8vjhka47d5bmhq-thunar-1.8.16

But when volume management is disabled the advanced settings looks like follows: But gvfs is installed, at least according to the package manager.

$ guix package --list-installed | grep gvfs
gvfs	1.40.1	out	/gnu/store/qg1827ai9j5raypmdajw3k7cibsqdykz-gvfs-1.40.1

Is this a packaging issue or, as I think I've read before, is it that Guix hasn't solved how to deal with dynamic dependencies?

I've learned that this command: echo -e "\a" triggers a beep on the local system, whereas this command: echo -e "\a" >/dev/console triggers a beep on a remote system. Why is this? What is the >/dev/console part doing? Why is it that executing echo -e "\a" on a remote machine triggers the beep locally and not remote ? Why does "echo" - command don't like sudo ? Is there a OSI-Layer - like scheme ? Please provide me with some external documentation. I have only a basic understandig of redirecting stdout/stderr to a file not much more, but the question more likely refers to how is "Gnu/Linux/Kernel" designed in order to requiere redirrection to " > /dev/console" for a remote beep to work out. Does a remote echo "Hello World" require a redirection to /dev/console ?

Given a Scheme shell/interpreter, what command could output its implementation (R5RS, R6RS or whatever). For example, I have mit-scheme installed in a Debian machine. How could I discover what implementation it is? I'm thinking in terms of Python. If you have a Python shell, you can either run import sys print(sys.version) to print the version directly, or test it with: print 'abc' to see if it runs (it would run in case of Python2).

How can I run a Scheme expression from the command-line using neither a script saved in a file, nor starting the interactive shell? The equivalent in Python would be: python -c "print 1+1". scheme (+ 1 1) just starts the interactive shell and shows the result inside it.