User Profiles

A user profile defines the Home Manager 🡕 environment of an account: applications, desktop, settings. It is chosen via profile: in etc/config.yaml. Like hosts, profiles can inherit from one another.

Inheritance

Profiles

Profile	For whom	Inherits from
minimal	Base of every profile
normal	Standard user (desktop)	minimal
advanced	Developers, IT professionals	normal
umi	Multimodal input user (touch, voice, gaze)	normal
admin	Network administrator	advanced
nix-admin	Fleet administrator (Nix tools)	admin
student	Student	advanced
teenager	Teenager	minimal
gamer	Gamer	minimal
child	Child (Cartable Fantastique, technical icons hidden)	minimal
baby	Very young child	minimal

The umi profile and its host

It makes full sense on a host in the umi profile, which provides the X11 session and input device support (eye tracker, event injection). On another host, the account keeps GNOME and its on-screen keyboard. See Accessibility.

From the user’s side

A usage-oriented presentation is available in the user guide.

The GNOME desktop

Element	Profiles	Behavior
Qt5 / Qt6 settings, NixOS manual	all	Icons hidden (manual accessible via nixos-help)
“Support GNOME” notification	all	Disabled
Document viewer	all	Papers, default PDF application (replaces Evince)
Image viewer	all	Geeqie by default, if the imagery module is active
GNOME extensions	non-technical	Icon hidden
Terminal	non-technical	Console, absent from the dash, present in the application grid
Terminal	technical	Ghostty in the dash, if darkone.home.advanced.enableTools is active
Element (Matrix)	all except minimal, baby	Launched hidden if the network has Matrix

Dash locked

The favorites list (favorite-apps) is locked for the whole host: a technical profile without Ghostty therefore has no Console in its dash either.

Ghostty and SSH

From Ghostty, ssh installs the xterm-ghostty terminfo on the remote host on first connection (~/.terminfo, via tic), otherwise it falls back to xterm-256color. DNF hosts already provide it to all accounts, root included.

Cartable Fantastique

The child profile adds to LibreOffice the toolbar from Cartable Fantastique 🡕, designed for students with dyspraxia or DYS: read, write, calculate, text to speech.

Edition	For whom
primaire	Elementary school (default of child)
college	Middle school: languages, chemistry, electricity
adaptateur	Adult adapting learning materials

# usr/users/<login>/default.nix
darkone.home.office.cartableFantastique = "college"; # null : aucune

The extension is installed in the account’s LibreOffice profile when Home Manager activates (startup or deployment). Text to speech goes through speech-dispatcher, active by default on workstations.

Manual removal

Setting the option back to null leaves the extension in place: remove it via Tools → Extension Manager.

Heavy applications on demand

To lighten the first workstation, advanced and the profiles inheriting from it install neither VS Code (0.3 GiB) nor Slidev (0.4 GiB): Zed remains the default editor. To add them to an account, including to restore the previous behavior:

# usr/users/<login>/default.nix
darkone.home.advanced.enableVscode = true;
darkone.home.advanced.enableSlidev = true; # avec son extension VS Code

Assigning a profile

etc/config.yaml

users:
  alice:
    uid: 1000
    name: "Alice"
    profile: "nix-admin"
    groups: ["global"]

Customizing

Create or override a profile in usr/home/profiles/<nom>/, a single account in usr/users/<login>/default.nix (darkone.home.* options, without lib.mkForce). The reusable building blocks are the Home Manager modules. A program from a profile is removed with excludePackages (games, education modules).

FAQ

A Cartable Fantastique hash no longer matches

The publisher replaces the .oxt file without changing the URL. Recalculate the hashes of dnf/pkgs/cartable-fantastique/package.nix with nix store prefetch-file <url>.