Anish Govind
598a43eace
- add my.username / my.gaming.enable / my.ai.local.enable options and gate optional app modules on them instead of per-host import lists - move vendor-neutral hardware.graphics into modules/graphical, leaving only NVIDIA-specific drivers and env vars in modules/hardware/nvidia - derive the primary user everywhere from my.username (users, getty, home-manager, tmpfiles) - de-duplicate Hyprland autostart down to a single system loginShellInit using the start-hyprland wrapper - consolidate all nixpkgs overlays into modules/core/nix.nix and use final.stdenv.hostPlatform.system - make the zsh rebuild helper target $(hostname) instead of hardcoded hades - add nixpkgs follows for nixos-hardware, pi and comfy-ui (single nixpkgs) - add .gitignore and a nixfmt flake formatter; format all nix files - remove empty browser.nix/display-configuration.nix and rename local_ai.nix -> local-ai.nix - document the my.* toggles in the README
NixOS Configs
Reproducible multi-host NixOS + Hyprland ("Silicon Volt") configuration.
Install (new machine)
# Setup disks
nix run --experimental-features "nix-common flakes" github:nix-community/disko -- --mode disko --flake .#hades
# install configs
nixos-install --flake .#hades
# set password
nixos-enter --root /mnt -- passwd anish
Rebuild (existing machine)
rebuild switch # zsh helper: sudo nixos-rebuild switch --flake ~/NixOS-Configs#<host>
Adding a new host (e.g. a laptop)
- Create
hosts/<name>/withdefault.nix,hardware-configuration.nix, and (optionally)disko.nix. Shared modules (modules/core,modules/graphical,modules/apps) are already pulled in bycommonModulesinflake.nix— the host only adds its own hardware/disko config. - Register it in
flake.nixundernixosConfigurations. - Turn optional features on per machine via the shared
my.*options:
# hosts/<name>/default.nix
my = {
username = "anish"; # default; change for a different primary user
gaming.enable = false; # Steam, Gamemode, MangoHud
ai.local.enable = false; # Ollama, ComfyUI, Open WebUI
};
- Declare host-specific displays in
hosts/<name>/default.nix:
home-manager.users.anish.volt.monitors = [
{
output = "eDP-1"; # or "desc:<panel description>"
mode = "2880x1800@120Hz"; # or "preferred"
position = "auto";
scale = 2;
vrr = null; # optional per-monitor VRR
}
{ output = ""; mode = "preferred"; position = "auto"; scale = "auto"; } # fallback
];
The volt.monitors default (any output @ preferred) keeps every machine working
out of the box; hosts override only what they need. Hosts without an NVIDIA GPU
simply don't import modules/hardware/nvidia.nix — all vendor env vars live there,
while the vendor-neutral hardware.graphics stack lives in modules/graphical.
Feature toggles (my.*)
Optional app modules are always imported (via modules/apps/default.nix) but only
activate when a host sets the corresponding flag, so hosts never need to edit
import lists:
| Option | Enables |
|---|---|
my.username |
Primary user (users, home-manager, getty autologin) |
my.gaming.enable |
Steam, Gamemode, MangoHud |
my.ai.local.enable |
Ollama (CUDA), ComfyUI, Open WebUI |
Hardware modules remain explicit imports per host (e.g. modules/hardware/nvidia.nix).