Zoty
bf35832817
- niri: remove explicit package override (use niri-flake default), drop KDE portal, set xdg.portal.config for deterministic portal resolution, remove unused waybar - core: replace synchronous auto-optimise-store with async nix.optimise.automatic, reduce zramSwap.memoryPercent from 300 to 100 - dev: add python3 and uv to system packages - add .mcp.json (nixos MCP server) and CLAUDE.md
94 lines
4.2 KiB
Markdown
94 lines
4.2 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Architecture: Dendritic Pattern
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This config uses the **[den](https://github.com/vic/den)** framework with the **dendritic pattern** — configurations are composed from reusable *aspects* rather than per-host files.
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Key concepts:
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- **Aspects** (`den.aspects.<name>`) — named, composable feature modules. Each aspect can define `nixos` (system config) and/or `homeManager` (user config) blocks.
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- **Hosts** (`den.hosts.x86_64-linux.<hostname>`) — defined in `modules/den.nix`, each assigned an aspect that lists its includes.
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- **`import-tree`** — automatically imports all `.nix` files under `modules/`, so adding a new file is enough to register it.
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- **`flake-aspects`** — wires the den module system into the flake output.
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Host→aspect mapping (from `modules/den.nix`):
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- `desktop` — gaming + dev + creative, Nvidia GPU
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- `notebook` — portable dev + creative, Intel GPU
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- `work` — portable dev only, no gaming/creative
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## Module layout
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```
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modules/
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den.nix # host declarations and aspect composition
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output.nix # exposes flake.nixosConfigurations option
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identity.nix # local.identity options (username, email, SSH key)
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core.nix # base: nix settings, caches, locale, base packages
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services.nix # shared system services
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wayland.nix # Wayland env vars
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niri.nix # niri compositor + quickshell bar + display tools
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dev.nix # dev tools, LSPs, Docker, JDKs (system-level)
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portable.nix # power management, TLP, firewall
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desktop.nix # desktop-specific hardware/packages
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notebook.nix # notebook-specific packages
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work.nix # work-specific packages
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secrets.nix # sops-nix integration
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_hardware/ # per-host hardware-configuration.nix files
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_home/ # home-manager modules (imported by den.aspects.zoty)
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default.nix # zsh, direnv, common home packages (firefox, kitty, claude-code)
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niri.nix # niri home config
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git.nix # git identity
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theme.nix # GTK/icon theme
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cursor.nix # cursor theme
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dolphin.nix # file manager
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xdg-dirs.nix # XDG directory overrides
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quickshell/ # QML bar widgets (quickshell + qml-niri)
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```
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## Common commands
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```bash
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just switch # rebuild + switch (uses current hostname)
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just switch desktop # target a specific host
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just build # build only, don't switch
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just test # apply temporarily (reverts on next boot)
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just diff # show what changed vs running system
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just check # evaluate flake for errors
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just update # update all flake inputs
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just update-input nixpkgs # update a single input
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just gc # garbage collect (>7 days old)
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just repl # nix repl with flake loaded
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just secrets # edit SOPS-encrypted secrets
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just iso # build installer ISO
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```
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## Inputs
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| Input | Channel | Role |
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|---|---|---|
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| `nixpkgs` | nixos-25.11 | stable packages |
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| `nixpkgs-unstable` | nixos-unstable | neovim, JDKs, some dev tools |
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| `home-manager` | release-25.11 | user environment |
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| `sops-nix` | — | secret decryption at boot |
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| `niri-flake` | — | niri compositor |
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| `disko` | — | declarative disk partitioning |
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| `claude-code` | sadjow/claude-code-nix | claude-code CLI |
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| `qml-niri` | imiric/qml-niri | quickshell niri integration |
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## Secrets (SOPS + age)
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- Encrypted in `secrets/secrets.yaml`, decrypted at boot by sops-nix.
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- Age key must exist at `/etc/sops/age/keys.txt` before first deploy.
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- New secrets: add to `just secrets`, then declare in `modules/secrets.nix`.
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- New host key: add public key to `.sops.yaml`, then run `sops updatekeys secrets/secrets.yaml`.
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## Adding a new host
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1. Copy hardware config to `modules/_hardware/<hostname>-hardware.nix`.
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2. Add `den.hosts.x86_64-linux.<hostname>` in `modules/den.nix`.
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3. Define a `den.aspects.<hostname>` with the desired `includes` list.
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## Identity
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Global identity (username, full name, email, SSH key) is declared as NixOS options in `modules/identity.nix` and passed to home-manager modules via `specialArgs`. Override `local.identity.*` options in a host aspect when needed.
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