Gibbz's NixOS dotfiles

Features

System - NixOS

• iwd for wireless network management.
• ntpd-rs for NTP management and automatic-timezoned for timezone selection.
• openssh.nix module enables Fail2ban
• docker.nix module with aggressive auto pruning enabled
• stylix.nix module for system-level theming
• audio.nix module enabling Pipewire, Rtkit, and wiremix.

Other Notes

• wheelNeedsPassword is set to false in the nixos-config/modules/default.nix, take care when adding new users belonging to wheel.

Home - Home Manager

TUI

• XDG base directory specification adherence (on a best effort basis).
• XDG user directories (all in lowercase).
• readline with vi-mode and responsive completion settings.
• bash with immediate history settings.
• fzf enabled using fd as backend.
• zoxide for directory jumping (using fzf for interactive select).
• yazi with a shell-wrapper mapped to yy (integrated in turn with fd, ripgrep, zoxide and fzf).
• tmp.nix module for enabling a $HOME/tmp that gets cleaned on boot, similar to /tmp.

GUI

• sway with swaylock.
  • Sway is autostarted directly from TTY login, no extra login manager required.
  • Window focus is conveyed by toggleable inactive window transparency.
  • Includes an xdg-portal ready for screen recording.
  • way-displays for automatic display management.
• foot terminal running in server mode.
• rofi application, exit, emoji, clipboard, screenshot, network and bluetooth launchers
• stylix.nix module for home-level theming, in addition to icon set (Tela Gray), cursor theme (Capitaine), font, and wallpaper selection.
• fonts: noto family (+ color emoji and CJK), nerdfonts-symbols-only

Setup

selected-conf placeholder needs to match one of the nixosConfigurations listed in the flake.nix, ex. evolve.

All hosts running commands are expected to have flakes enabled. Verify this by running nix flake.

Running them inside QEMU

To build the VM image:

nix build .#nixosConfigurations.selected-conf.config.system.build.vm

To then run it with QEMU:

QEMU_KERNEL_PARAMS="console=ttyS0" ./result/bin/run-selected-host-vm -nographic; reset

Make sure to remove -nographic for all things GUI.

Remote install with nixos-anywhere and a live usb.

Based on: https://github.com/nix-community/nixos-anywhere/blob/main/docs/howtos/no-os.md

Preparing the remote

1. Boot from live usb
2. Make connect to LAN (ex. with nmtui for Wifi).
3. Get IP address with ip addr.
4. Set a password for the nixos user with passwd.
5. Make sure that the flake.nix's diskName is the same as the disk name reported by lsblk.
6. Finally:

_os_config='evolve' # which nixosconfigurations in flake.nix to use
_remote_ip="..." # from ip addr on remote
nix run github:nix-community/nixos-anywhere -- \
  --flake ".#$_os_config" \
  --target-host "nixos@$_remote_ip" \
  # omit if a hardware configuration already exists
  --generate-hardware-config nixos-generate-config "./nixos-config/hosts/$_os_config/hardware.nix"

You may want to commit any newly generated hardware configurations (hardware.nix) to git.

From an existing NixOS host

Rebuild switch from a remote flake:

sudo nixos-rebuild switch --flake github:gibbz00/dotfiles#selected-conf

Or if already present locally:

# in directory where flake.nix is located
sudo nixos-rebuild switch --flake .#selected-conf

Todo

Unclutter Home (XDG Base Directory Specification Adherence)

• bash: https://savannah.gnu.org/support/?108134
• firefox: https://bugzilla.mozilla.org/show_bug.cgi?id=2005167
• gtk3: nix-community/stylix#1142