Nomarchy/docs/OVERRIDES.md

# Overriding Nomarchy's defaults

You consume Nomarchy as a flake input and own two files: `system.nix` and
`home.nix`. Your config is **merged** with Nomarchy's modules, so changing a
default is just a matter of knowing which of three knobs to reach for. The
rule of thumb:

> **Appearance → the CLI. Behaviour → `home.nix`. Whole component → toggle it off.**

## 1. Appearance (gaps, colors, rounding, fonts, opacity) — use the CLI

Everything that defines the *look* flows from `theme-state.json`, the single
source of truth. Change it with `nomarchy-theme-sync`, which writes the JSON
and rebuilds — one generation, applied to Hyprland, Waybar, Ghostty, btop and
Stylix at once:

```sh
nomarchy-theme-sync set ui.gapsOut 16      # gaps, borders, rounding, opacity
nomarchy-theme-sync set ui.rounding 0
nomarchy-theme-sync set fonts.mono "FiraCode Nerd Font"
nomarchy-theme-sync apply gruvbox          # whole palette
```

### Icon pack

Icons follow the active theme's light/dark mode using **Papirus** — the only
icon pack shipped by default (Papirus alone is ~1 GiB, so extra packs are
opt-in rather than a cost every install pays). To switch to another pack:

```sh
nomarchy-theme-sync set icons "Tela-dark"  # or "" to return to Papirus-by-mode
```

Only the pack you name is pulled into your system (the first switch downloads
it). Known packs and an example theme name from each:

| Set `icons` to… | Pack |
|---|---|
| `Papirus`, `Papirus-Dark`, `Papirus-Light` | Papirus (default; `""` auto-picks Dark/Light by mode) |
| `Tela`, `Tela-dark`, `Tela-<color>[-dark]` | Tela (colors: blue, green, red, purple, nord, dracula, …) |
| `Qogir`, `Qogir-Dark`, `Qogir-Light` | Qogir (note the capital D/L) |
| `Reversal`, `Reversal-dark` | Reversal |
| `Numix-Circle`, `Numix-Circle-Light` | Numix Circle |

The choice is a **sticky global override** — it survives `apply <palette>`
switches (presets don't carry an icon field). To add a pack that isn't listed,
append a row to `iconPacks` in `modules/home/theme.nix`. Set `icons` to `""`
any time to drop back to Papirus with automatic Dark/Light.

### Auto theme (day/night)

Switch automatically between a light **day** theme and a dark **night** theme
on a schedule — the same one engine as a manual `apply`, no second pipeline.
Turn it on from **Look & Feel › Auto theme** (`SUPER+M`): toggle it, pick the
day and night themes, and set the sunrise/sunset times. The same from a shell:

```sh
nomarchy-theme-sync set settings.autoTheme.day summer-day --no-switch
nomarchy-theme-sync set settings.autoTheme.night summer-night --no-switch
nomarchy-theme-sync set settings.autoTheme.sunset 20:00 --no-switch
nomarchy-theme-sync set settings.autoTheme.enable true --no-switch
nomarchy-theme-sync auto --force   # one rebuild: installs the timer + applies now
```

State lives in `settings.autoTheme`:

| Field | Meaning |
|---|---|
| `enable` | on / off |
| `day` / `night` | theme slugs — e.g. `summer-day` / `summer-night` (see `nomarchy-theme-sync list`) |
| `sunrise` / `sunset` | switch times, `"HH:MM"` (24-hour) |

A timer re-checks every ~15 minutes: the day theme applies around sunrise, the
night theme around sunset — but it only rebuilds when the active theme
actually needs to change, so most checks do nothing. Enabling rebuilds once
(to install the timer); disabling is instant. Preview the current decision
without switching with `nomarchy-theme-sync auto --which`.

These values are deliberately kept at normal priority in the modules, so they
stay owned by the theme system. If you *insist* on pinning one in `home.nix`
regardless of the active theme, use `lib.mkForce` (see §4) — but then the CLI
can no longer change that knob.

## 2. Behaviour (input, misc, monitor, animations, terminal chrome) — `home.nix`

Non-appearance defaults are set with `lib.mkDefault`, so a **plain assignment**
in your `home.nix` wins — no `mkForce` needed:

```nix
# home.nix
{ ... }:
{
  wayland.windowManager.hyprland.settings = {
    input.follow_mouse = 0;            # was 1
    input.touchpad.natural_scroll = false;
    misc.disable_splash_rendering = false;
    monitor = [ "DP-1,2560x1440@144,0x0,1" ];   # raw rule — replaces the default
    animations.enabled = false;
  };

  programs.ghostty.settings = {
    window-padding-x = 4;              # was 12
    window-decoration = true;
  };
}
```

For monitor layout, prefer the friendlier **`nomarchy.monitors`** (a list of
per-output submodules — resolution/position/scale/rotation — turned into
Hyprland rules and applied on hotplug; run `nwg-displays` to find the values
interactively). Assigning `settings.monitor` directly, as above, replaces it.

### Adding vs. overriding lists

`bind`, `bindel`, `bindl`, `bindm` and `exec-once` are lists kept at normal
priority, so anything you add **concatenates** with Nomarchy's — your binds and
autostarts run *alongside* the defaults:

```nix
{
  wayland.windowManager.hyprland.settings = {
    bind = [
      "$mod, B, exec, firefox"
      "$mod SHIFT, S, exec, grim -g \"$(slurp)\" - | satty --filename -"
    ];
    exec-once = [ "nm-applet --indicator" ];
  };
}
```

To **remove or replace** a default bind, override the whole `bind` list with
`lib.mkForce [ … ]` (you then own the full list), or rebind the key to
something else (last definition for a key wins in Hyprland).

You can also drop raw config that doesn't fit the Nix schema:

```nix
{ wayland.windowManager.hyprland.extraConfig = ''
    bindl = , switch:Lid Switch, exec, hyprlock
  '';
}
```

### Waybar

For a themed bar identity, ship whole-swap assets
(`themes/<slug>/waybar.jsonc` and `waybar.css`) — see the main README. To
replace the bar wholesale from `home.nix`, assign `programs.waybar.settings.
mainBar` / `programs.waybar.style` (both `mkDefault`, so a plain assignment
wins). For a one-off tweak of a single generated key, `lib.mkForce` it.

## 3. Whole component — toggle it off and bring your own

Each desktop piece has an enable flag (all default `true`). Turn one off and
Nomarchy contributes nothing for it, leaving the field clear for your own:

```nix
# home.nix
{
  nomarchy.hyprland.enable = false;   # then write your own wayland.windowManager.hyprland
  nomarchy.waybar.enable = false;
  nomarchy.swaync.enable = false;
  nomarchy.idle.enable = false;       # no hyprlock/hypridle
}
```

```nix
# system.nix
{
  nomarchy.system.plymouth.enable = false;
  nomarchy.system.greeter.enable = false;   # bring your own login manager
}
```

See the option tables in the README for the full list.

## 4. Last resort: `lib.mkForce`

To override a value Nomarchy sets at normal priority (an appearance value, or
a whole list), raise your definition's priority:

```nix
{ lib, ... }:
{
  # hardcode rounding against the theme (the CLI can no longer change it)
  wayland.windowManager.hyprland.settings.decoration.rounding = lib.mkForce 0;

  # own the entire keybind list
  wayland.windowManager.hyprland.settings.bind = lib.mkForce [ "$mod, Return, exec, kitty" ];
}
```

If a plain assignment errors with *"has conflicting definition values"*, that
value is theme-owned at normal priority — either change it via the CLI (§1) or
`mkForce` it here.

## Quick reference

| You want to… | Do this |
|---|---|
| Change gaps / colors / rounding / fonts | `nomarchy-theme-sync set …` or `apply` |
| Change input / misc / monitor / animations / terminal chrome | plain assignment in `home.nix` |
| Arrange monitors declaratively | `nomarchy.monitors` (values via `nwg-displays`) |
| Add keybinds / autostarts | add to the `bind` / `exec-once` list (concatenates) |
| Replace all keybinds | `bind = lib.mkForce [ … ]` |
| Hardcode an appearance value against the theme | `lib.mkForce` in `home.nix` |
| Drop a whole component | `nomarchy.<component>.enable = false` |
| Raw Hyprland lines | `wayland.windowManager.hyprland.extraConfig` |