My NixOS personal configuration

NixOS config files. KISS principle.

Highlights:

• Multiple machines, two roles: dev (Cosmic DE) and chill (Gnome)
• Single flake entry point with an unstable overlay for select packages (idea)
• Fully declarative configuration — locale, GC, SSH keys, sudo rules, services

Structure

NixOS-personal/
├── configuration.nix              # Shared base: locale, nix settings, aliases, overlays
├── flake.nix                      # Flake inputs (nixos-26.05 + unstable) and mkSystem helper
├── flake.lock
├── customization/                 # Wallpapers and theme assets
├── machines/
│   ├── Fondue/
│   │   ├── default.nix            # chill role, sof-firmware
│   │   └── Fondue-hardware-configuration.nix
│   ├── NixMac/
│   │   ├── default.nix            # chill role, battery mgmt, mac keyboard layout
│   │   └── NixMac-hardware-configuration.nix
│   ├── Raclette/
│   │   ├── default.nix            # dev role, Nvidia GPU, GRUB
│   │   └── Raclette-hardware-configuration.nix
│   └── Tartiflette/
│       ├── default.nix            # dev role, laptop, battery mgmt, sof-firmware
│       └── Tartiflette-hardware-configuration.nix
├── modules/
│   ├── battery-management.nix     # Power/charging thresholds (laptops only)
│   ├── cosmic.nix                 # Cosmic DE
│   ├── fonts.nix
│   ├── gnome.nix                  # Gnome DE
│   ├── programs.nix               # git, vim, zsh (oh-my-zsh)
│   ├── services.nix               # tailscale, openssh, pipewire, sunshine, printing, fprintd
│   ├── solaar.nix                 # Logitech device manager
│   └── users.nix                  # fkozmik user, packages, SSH authorized keys
└── roles/
    ├── chill.nix                  # Gnome + programs + services + users
    └── dev.nix                    # Cosmic + fonts + programs + services + solaar + users

Machines

Machine	Role	Notes
Raclette	dev	Desktop, Nvidia GPU
Tartiflette	dev	Laptop, battery management
Fondue	chill	Secondary machine
NixMac	chill	MacBook, mac keyboard layout, battery management

Roles

Role	DE	Extra modules
dev	Cosmic	fonts, solaar
chill	Gnome	—

Key packages and services

• Shell: zsh + oh-my-zsh (jonathan theme)
• Editor: vim (default)
• VCS: git (with opinionated defaults: rerere, autoStash, updateRefs…)
• Networking: tailscale, openssh (key-only)
• Audio: pipewire + PulseAudio compat
• Remote: sunshine (game streaming), moonlight-qt, remmina, RealVNC
• Dev tools: docker, gh, idea (from unstable channel), php
• Desktop apps: Firefox, Chrome, Bitwarden, Discord, Spotify, LibreOffice, Logseq, rnote, xournalpp