nixos-dotfiles

Personal NixOS configuration. Hyprland on Wayland, managed declaratively with Nix flakes and home-manager.

Stack

Layer	Tool
OS	NixOS (unstable)
Compositor	Hyprland (with UWSM)
Display manager	ly
Shell	Zsh + autosuggestion + syntax highlighting
Prompt	Starship
Tooling	eza, fzf, zoxide, gh
Git	git + delta (top-down diff with line numbers)
Bar	Waybar
Launcher	Wofi
Terminal	Ghostty / Kitty
Font	FiraCode Nerd Font
Editor	Neovim
Browser	Firefox
Audio	PipeWire (with PulseAudio shim)
Networking	NetworkManager + Tailscale

Structure

.
├── flake.nix                  # Flake entry point + inputs
├── flake.lock
├── hosts/                     # Per-machine system config
│   └── daltrax/
│       ├── default.nix        # System-level NixOS config for this host
│       └── hardware-configuration.nix
├── home/                      # home-manager (user-level) config
│   ├── default.nix            # Cross-platform baseline (zsh, git, gh, eza, ...)
│   └── linux.nix              # Linux-only additions, imports default
├── modules/                   # Reusable system modules, imported by hosts
│   └── nixos/
│       └── rust.nix           # Rust toolchain (cargo, rustc, wild linker, ...)
└── config/                    # Raw config files sourced via home.file
    ├── hypr/                  # Hyprland config
    └── waybar/                # Waybar config + styles

The split lets the same home/default.nix get reused later from a Mac (via standalone home-manager) by importing it from a sibling darwin.nix.

Usage

git clone git@github.com:Ashutosh00710/nixos-dotfiles.git
cd nixos-dotfiles
sudo nixos-rebuild switch --flake .#daltrax

Replace daltrax with whatever you name your host in flake.nix under nixosConfigurations.

Notes

• hardware-configuration.nix is machine-specific. Regenerate with nixos-generate-config before rebuilding on a new machine.
• Tailscale SSH is enabled — run sudo tailscale up --ssh once after install to authenticate.
• CapsLock is remapped to Ctrl system-wide (Hyprland + virtual consoles + ly login).
• Closing the lid turns the laptop panel off but keeps the system running (so SSH/Tailscale stay reachable); opening it restores the display. Assumes the machine is always on AC.
• Default user is ashutosh. Rename in hosts/daltrax/default.nix and home/linux.nix for your own use.
• Convenience alias nrs rebuilds the system: sudo nixos-rebuild switch --flake ~/nixos-dotfiles#daltrax.
• Rust projects use per-directory dev shells: drop a flake.nix (devShell) + .envrc containing use flake in the project, run direnv allow, and the toolchain/libs load automatically on cd. Project-specific libraries (openssl, etc.) go in that flake's buildInputs, not the system config.
• Low-RAM build tuning (see hosts/daltrax/default.nix + home/linux.nix): zram + an 8 GiB swapfile, the wild linker, and codegen-units=256 keep a single rustc from exhausting memory and freezing the machine. Prefer cargo build (debug) over --release while iterating.