Merge pull request 'chore(deps): update gitea actions to a49548c' (#59) from renovate/gitea-actions into main

The module-catalogue table in README.md was committed without prettier's
alignment, so the treefmt formatting flake check fails. This has left
CI (nix flake check) red on main since the #56 docs merge and blocks
every PR that triggers the full check.

Reformat with the flake's pinned formatter; no content change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -54,7 +54,7 @@ jobs:
 
       - name: Install Nix
         if: steps.detect.outputs.run == 'true'
-        uses: cachix/install-nix-action@8aa03977d8d733052d78f4e008a241fd1dbf36b3 # v31
+        uses: cachix/install-nix-action@a49548c11d9846ad46ecc0115273879b045f001c # v31
         with:
           extra_nix_config: |
             experimental-features = nix-command flakes

README.md

@@ -12,16 +12,67 @@ Defined in the host table in [`flake.nix`](./flake.nix):
 | `lyrathorpe-mbp`      | `aarch64-linux`  | MacBook Pro (Apple Silicon, Asahi)                                                                          |
 | `lyrathorpe-t400`     | `x86_64-linux`   | ThinkPad T400 — [install notes](./hosts/T400/README.md)                                                     |
 | `lyrathorpe-macpro31` | `x86_64-linux`   | Mac Pro 3,1, desktop — [install notes](./hosts/MacPro31/README.md)                                          |
-| `emmathorpe-edaas`    | `x86_64-linux`   | Work WSL box (NixOS-WSL)                                                                                    |
+| `emmathorpe-edaas`    | `x86_64-linux`   | Work WSL box (NixOS-WSL) — [notes](./hosts/EDaaS/README.md)                                                 |
 | `lyrathorpe-rpi5`     | `aarch64-linux`  | Raspberry Pi 5 headless server: Docker host + nginx reverse proxy — [install notes](./hosts/RPi5/README.md) |
-| `lyrathorpe-mac`      | `aarch64-darwin` | macOS (nix-darwin)                                                                                          |
+| `lyrathorpe-mac`      | `aarch64-darwin` | macOS (nix-darwin) — [notes](./hosts/Darwin/README.md)                                                      |
 
 Shared layers: `home` (home-manager: shell, git, editor),
 `modules/common-nixos.nix` (all NixOS hosts: fonts, nix-ld, caches),
 `modules/workstation.nix` (physical graphical hosts: audio, thermald,
 earlyoom, fwupd), `modules/laptop.nix` (laptops: Wi-Fi, Bluetooth, power,
-lid), and `modules/ssh.nix` (key-only sshd). The x86 hosts also pull
+lid), `modules/desktop.nix` (wired desktops: NetworkManager), and
-`nixos-hardware` profiles.
+`modules/ssh.nix` (key-only sshd). The x86 hosts also pull `nixos-hardware`
+profiles. The full module catalogue is below.
+
+## Repository layout
+
+```
+flake.nix              # inputs, mkHost/mkDarwinHost, the host tables, dev shell + checks
+flake.lock             # pinned input revisions (Renovate keeps this fresh)
+modules/               # reusable NixOS system modules (see "Module catalogue")
+home/                  # home-manager profile: shell, git, editor, claude, desktop, sway
+users/                 # identity registry + per-user home extras (see "Users")
+hosts/<Name>/          # per-machine config: configuration.nix + hardware-configuration.nix
+lib/                   # small pure helpers (currently the Catppuccin Mocha palette)
+.gitea/workflows/      # CI (nix flake check + per-host eval)
+statix.toml            # lint config (house-style lints disabled)
+.editorconfig          # base whitespace style
+tf-inspect/            # UNRELATED scratch project (gitignored, its own git repo);
+                       #   RouterOS / home-services Terraform, not part of this flake
+```
+
+Each `nixosConfiguration` / `darwinConfiguration` is assembled in `flake.nix`
+from three layers: the shared `baseModules` (or `darwinBaseModules`), the
+per-form-factor and `nixos-hardware` modules listed in the host table, and the
+per-machine `hosts/<Name>/configuration.nix`. Home-manager is wired in as a
+system module; each user's home is composed from the `homeModules` list in that
+host's table entry.
+
+## Module catalogue
+
+Reusable NixOS modules under [`modules/`](./modules). "Imported by" says how a
+module reaches a host: **baseModules** (every NixOS host, via `flake.nix`),
+**host table** (listed explicitly per host in `flake.nix`), or **transitively**
+(pulled in by another module's `imports`).
+
+| Module             | Imported by                       | What it does / when to use it                                                                                                                                                                             |
+| ------------------ | --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `common-nixos.nix` | baseModules (all NixOS)           | Timezone/locale, store hygiene (auto-optimise, big download buffer, **no** auto-GC), the nix-community binary cache, `nix-ld`, base CLI (`git`, `fastfetch`), and the fleet-wide font stack.              |
+| `users.nix`        | baseModules (all NixOS)           | Builds `users.users` from the registry for the host's `hostUsers`; enables zsh; enables Firefox + Thunderbird **only** when `features.swayDesktop.enable` is on. Applies per-user `linger`.               |
+| `features.nix`     | baseModules (all NixOS)           | Declares feature-flag options (currently `features.swayDesktop.enable`) so any host can read/set them without importing the heavy implementation module.                                                  |
+| `workstation.nix`  | transitively (via laptop/desktop) | Form-factor-agnostic base for physical graphical hosts: turns on `swayDesktop`, Dvorak console, PipeWire, firewall (default-deny), fstrim, earlyoom, fwupd, thermald (x86), redistributable fw.           |
+| `laptop.nix`       | host table (MBP, T400)            | `imports` workstation.nix, then adds the portable bits: iwd Wi-Fi, lid suspend/lock, Bluetooth + blueman.                                                                                                 |
+| `desktop.nix`      | host table (Mac Pro)              | `imports` workstation.nix, then swaps Wi-Fi for wired NetworkManager. Pair with `portable = false` in the host table.                                                                                     |
+| `sway.nix`         | host table (graphical hosts)      | Implementation of `features.swayDesktop`: the system Sway package, the greetd/ReGreet (cage) greeter forced to Dvorak, xdg-portal, Wayland utility packages. Home-side Sway config is in `home/sway.nix`. |
+| `ssh.nix`          | host table (T400, Mac Pro, RPi5)  | Enables sshd, opens port 22, enforces a key-only policy (no password / keyboard-interactive, no root). Authorized keys come from the registry via `users.nix`.                                            |
+| `firmware/`        | referenced by MBP host config     | Committed Apple peripheral firmware blobs for the Asahi MBP (see "MacBook (Asahi) firmware").                                                                                                             |
+
+Form-factor decision: a **laptop** imports `laptop.nix` (default
+`portable = true`); a **wired desktop** imports `desktop.nix` and sets
+`portable = false`; a **headless server** imports neither (leaves
+`features.swayDesktop.enable` at its default `false`) and adds only what it
+serves. `portable` is threaded through to `home/sway.nix`, which drops the
+battery block and brightness keys on desktops.
 
 ## Users
 
@@ -38,6 +89,16 @@ Identity is data, kept separate from the reusable modules:
   identity into that user's home config as the `identity` module arg. A host can
   therefore declare any number of users.
 
+Per-user home extras live under `users/<name>/`:
+
+- [`users/lyrathorpe/home.nix`](./users/lyrathorpe/home.nix) — personal extras
+  (an ssh host shortcut, gammastep coordinates); imported on Lyra's hosts.
+- [`users/emmathorpe/work.nix`](./users/emmathorpe/work.nix) — the work
+  toolchain (kubectl/helm/az/etc.), work-only LSP servers, and the corporate ssh
+  handling; imports
+  [`users/emmathorpe/renovate-review.nix`](./users/emmathorpe/renovate-review.nix),
+  the daily headless Renovate-PR review timer (EDaaS only).
+
 ### Portable home (off-NixOS / external consumers)
 
 The home config is also exposed for use beyond these hosts:
@@ -52,33 +113,6 @@ The home config is also exposed for use beyond these hosts:
   (`inputs.<this>.homeModules.default`). Consumers must supply the module args
   these expect: `inputs` always, `identity` for git/desktop, `portable` for sway.
 
-## Directory authentication (SSSD → Authentik LDAP)
-
-Every NixOS host authenticates users against the Authentik LDAP outpost via
-SSSD, implemented in [`modules/sssd.nix`](./modules/sssd.nix) and enabled by
-default through the `services.authentikLdap.enable` option (added to
-`baseModules`). The **EDaaS** WSL box opts out
-(`services.authentikLdap.enable = false`) as a work-managed environment; the
-macOS host is unaffected (SSSD is Linux-only).
-
-- Connects over LDAPS to `ldap.lyrapup.pet:636`, search base
-  `dc=ldap,dc=goauthentik,dc=io`, binding as
-  `cn=sssd-bind,ou=users,dc=ldap,dc=goauthentik,dc=io`.
-- The schema mappings match Authentik's non-standard object classes
-  (`goauthentik.io/ldap/user`, `goauthentik.io/ldap/group`) over the POSIX
-  attributes (`uid`, `uidNumber`, `gidNumber`, `homeDirectory`).
-- Home directories are created on first login (`pam_mkhomedir`).
-
-### Secrets (agenix)
-
-The LDAP bind credential is an [agenix](https://github.com/ryantm/agenix)
-secret, decrypted at activation with each host's SSH host key. The decrypted
-plaintext is a full `sssd.conf` drop-in delivered to
-`/etc/sssd/conf.d/01-ldap-authtok.conf`, so the password never enters the Nix
-store. Owner setup (host recipient keys, encrypting the bind password, DNS for
-`ldap.lyrapup.pet`, rebuild) is documented in
-[`secrets/README.md`](./secrets/README.md).
-
 ## Applying
 
 ```sh
@@ -88,6 +122,36 @@ sudo nixos-rebuild switch --flake .#<configuration>
 darwin-rebuild switch --flake .#lyrathorpe-mac
 ```
 
+On a host whose `networking.hostName` matches its flake attribute (the WSL box
+and the Pi are set up this way), `nh os switch` resolves the configuration from
+the hostname with no `--flake`/`-H` flag.
+
+## Adding a new host
+
+1. **Create `hosts/<Name>/`.** Add `configuration.nix` with the host-specific
+   bits only: `networking.hostName`, bootloader (firmware-specific — it is
+   deliberately not set in the shared modules), and any per-machine hardware
+   quirks. Keep anything reusable in `modules/` instead.
+2. **Hardware config.** Generate `hardware-configuration.nix` on the real
+   machine with `nixos-generate-config` and commit it. If the machine does not
+   exist yet, commit a clearly-labelled placeholder so the host still evaluates
+   in CI (see the existing T400 / RPi5 placeholders), and replace it at install.
+   These files are excluded from the formatter and linters.
+3. **Add a host-table entry in `flake.nix`.** Under `hosts` (NixOS) or
+   `darwinHosts` (macOS), set `system`, the `modules` list (host config + form
+   factor + any `nixos-hardware` profiles), and the `users` map (each user's
+   `homeModules`). Choose the form factor per the decision note above; a headless
+   host imports neither `laptop.nix` nor `desktop.nix`.
+4. **Users.** If the host introduces a new person, add them to
+   `users/registry.nix` first; otherwise reference an existing username.
+5. **Verify.** `nix flake check` formats, lints, and evaluates every host —
+   including the new one — so a broken entry fails locally before CI. Then
+   `sudo nixos-rebuild switch --flake .#<configuration>` on the machine.
+
+No change to CI is needed: the host-eval step discovers hosts from the flake
+(`attrNames` of the configuration sets), so a new entry is picked up
+automatically.
+
 ## Shell environment & keybindings
 
 - Interactive shell features (zsh, tmux, git, ssh, CLI tools, auto-tmux):
@@ -138,4 +202,7 @@ A dev shell and a formatting/lint gate are wired through the flake:
 
 [`.gitea/workflows/ci.yaml`](./.gitea/workflows/ci.yaml) runs `nix flake check`
 (formatting, `deadnix`, `statix`, the pre-commit hooks) and evaluates every
-NixOS and Darwin host configuration on push/PR.
+NixOS and Darwin host configuration on push/PR. It always runs (no `paths:`
+filter) so the required check never hangs pending; the heavy Nix steps are
+skipped when a PR touches no `.nix`/lockfile/workflow file, and the job still
+reports green.

flake.nix

@@ -46,15 +46,6 @@
       url = "github:cachix/git-hooks.nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    # agenix: age-encrypted secrets, decrypted at activation with each host's
-    # SSH host key. Provides the SSSD LDAP bind credential (secrets/, see
-    # modules/sssd.nix). The darwin module is intentionally unused (SSSD is
-    # Linux-only).
-    agenix = {
-      url = "github:ryantm/agenix";
-      inputs.nixpkgs.follows = "nixpkgs";
-      inputs.home-manager.follows = "home-manager";
-    };
     # Declarative Neovim (the editor; see home/editor.nix). Release
     # branch matched to the pinned nixpkgs (26.05); follows our nixpkgs to keep a
     # single nixpkgs in the closure. editor.nix sets programs.nixvim.nixpkgs.source
@@ -132,9 +123,7 @@
           ./modules/users.nix
           ./modules/common-nixos.nix
           ./modules/features.nix
-          ./modules/sssd.nix
           commonModule
-          inputs.agenix.nixosModules.default
           home-manager.nixosModules.home-manager
           {
             home-manager.useGlobalPkgs = true;

hosts/Darwin/README.md

@@ -0,0 +1,51 @@
+# macOS (nix-darwin) — `lyrathorpe-mac`
+
+Flake host: `lyrathorpe-mac` (`aarch64-darwin`). Apple Silicon Mac managed by
+**nix-darwin** from this same flake. Built via `mkDarwinHost` (single-user —
+macOS owns the account; identity still comes from the registry). Files:
+`configuration.nix`.
+
+## What this host is
+
+A macOS workstation. The interactive user environment (shell, git, editor,
+Claude) is the **shared `../../home` bundle** — the same modules the Linux hosts
+use — so the terminal experience matches. The Linux-only `desktop.nix`/`sway.nix`
+are intentionally left out. This host config covers the macOS-specific layer:
+system packages, Homebrew, and macOS UI defaults.
+
+## Package sourcing
+
+- **nixpkgs** (`environment.systemPackages`) for CLI tooling and libraries.
+- **Homebrew**, owned declaratively by `nix-homebrew` (Rosetta enabled for
+  x86_64 formulae). The `brews`/`casks` lists are **authoritative**:
+  `onActivation.cleanup = "zap"` uninstalls anything not declared. GUI apps are
+  casks (nixpkgs darwin GUI support is unreliable); a few version-pinned
+  toolchains and the PWA host stay on brew for continuity.
+- **Mac App Store** apps are **not** declarative: nix-darwin 26.05 runs
+  activation as root, and `mas` cannot reach the App Store session from root.
+  Install them by hand with `mas install <id>` from a GUI Terminal (the `mas`
+  CLI is in `environment.systemPackages`).
+
+## macOS integration
+
+- `security.pam.services.sudo_local` — **Touch ID for sudo** (and
+  `darwin-rebuild`'s sudo prompt), kept in `sudo_local` so it survives OS
+  updates. `reattach` pulls in `pam_reattach` so Touch ID works inside tmux
+  (which the terminals auto-start).
+- `system.defaults` — declarative dock / finder / global / trackpad preferences,
+  applied on activation and reversible. This is the main reason to run nix-darwin
+  beyond package management.
+- The JetBrainsMono Nerd Font is installed to `/Library/Fonts`; set it in
+  iTerm2 (Settings → Profiles → Text → Font) so the tmux statusline glyphs
+  render.
+
+## stateVersion
+
+`system.stateVersion = 5` (the nix-darwin state version, an integer — not a
+NixOS release string). Read `darwin-rebuild changelog` before changing it.
+
+## Apply
+
+```sh
+darwin-rebuild switch --flake .#lyrathorpe-mac
+```

hosts/EDaaS/README.md

@@ -0,0 +1,53 @@
+# Work WSL box — `emmathorpe-edaas`
+
+Flake host: `emmathorpe-edaas` (`x86_64-linux`). NixOS running under
+**NixOS-WSL** on the corporate Windows machine. Headless: no Sway desktop
+(`features.swayDesktop.enable = false`), plain WSL shell login. Files:
+`configuration.nix`.
+
+## What this host is
+
+The day-to-day work environment. It layers the corporate Kubernetes / Helm /
+Terraform / cloud toolchain and a couple of work-only editor language servers on
+top of the shared home profile. The system config here is thin — it is mostly
+WSL plumbing; the user-facing tooling lives in
+[`../../users/emmathorpe/work.nix`](../../users/emmathorpe/work.nix).
+
+## WSL specifics
+
+- `wsl.enable`, default user `emmathorpe`, Windows PATH interop and start-menu
+  launchers on. `/etc/hosts` generation is off (`generateHosts = false`).
+- **Docker Desktop integration**, not the native daemon as the primary path:
+  `wsl.extraBin` shims the coreutils/`groupadd`/`usermod` binaries Docker
+  Desktop's `wsl-distro-proxy` expects, and `docker-desktop-proxy.script` is
+  patched to the real proxy path. The native `virtualisation.docker` is also
+  enabled (with `enableOnBoot` + `autoPrune`).
+- `programs.ssh.systemd-ssh-proxy.enable = false` — the NixOS-WSL store is a
+  read-only VHD owned by `nobody`, and OpenSSH rejects the generated
+  `ssh-proxy` Include as "Bad owner or permissions", which would break ssh/git
+  for every command. The vsock proxy it provides is unused under WSL.
+- `networking.hostName = "emmathorpe-edaas"` matches the flake attribute so
+  `nh os switch` resolves without `-H`.
+
+## Renovate review timer
+
+The host-table entry sets `users.emmathorpe.linger = true` so the user's
+`systemd --user` instance stays alive without an open login session. That keeps
+the daily headless **Renovate PR review** timer firing — defined in
+[`../../users/emmathorpe/renovate-review.nix`](../../users/emmathorpe/renovate-review.nix)
+(imported only from `work.nix`, so it exists on this machine alone). See that
+file's header for the auth (Vertex AI ADC), triage policy, and caveats.
+
+## stateVersion
+
+`system.stateVersion = "24.11"` — the release this box was first installed on.
+Leave it; it freezes stateful defaults and is not meant to track the current
+nixpkgs.
+
+## Apply
+
+```sh
+sudo nixos-rebuild switch --flake .#emmathorpe-edaas
+# or, since the hostname matches the attribute:
+nh os switch
+```

hosts/EDaaS/configuration.nix

@@ -62,11 +62,6 @@
 
   features.swayDesktop.enable = false;
 
-  # Opt out of fleet-wide SSSD/Authentik LDAP auth: this is a work-managed WSL
-  # box, not part of the personal directory. Every other NixOS host inherits the
-  # default-true from modules/sssd.nix.
-  services.authentikLdap.enable = false;
-
   # NOTE: this user's systemd --user lingering -- so the home-manager renovate
   # timer fires without an open login session -- is enabled from the host table
   # in flake.nix (users.emmathorpe.linger = true) and applied by

hosts/MacPro31/README.md

@@ -48,7 +48,7 @@ gigabit ports.
 ## Login
 
 Graphical login via a Wayland greeter — `greetd` running ReGreet inside the
-`cage` kiosk compositor — configured centrally in `lyrathorpe/swaywm.nix` for
+`cage` kiosk compositor — configured centrally in `../../modules/sway.nix` for
 every Sway host (gated on `features.swayDesktop.enable`). The greeter is forced
 to the Dvorak layout to match the console and Sway session. Set the user
 password (`passwd lyrathorpe`) after install, or the greeter cannot

hosts/RPi5/README.md

@@ -15,7 +15,7 @@ Headless `aarch64-linux` server with two roles:
    ```sh
    nixos-generate-config --root /mnt
    # copy /mnt/etc/nixos/hardware-configuration.nix over
-   # system/machine/RPi5/hardware-configuration.nix in this repo, then commit
+   # hosts/RPi5/hardware-configuration.nix in this repo, then commit
    ```
    `hardware-configuration.nix` in this directory is a **placeholder** committed
    only so the host evaluates in CI. The machine will not boot correctly until it
@@ -28,7 +28,8 @@ Headless `aarch64-linux` server with two roles:
    nh os switch
    ```
 4. Give the login user a password (`passwd lyrathorpe`) and confirm the key in
-   `system/modules/ssh.nix` is the one you will connect with.
+   the user registry (`../../users/registry.nix`, applied by
+   `../../modules/ssh.nix`) is the one you will connect with.
 
 ## Docker socket (security)
 

hosts/T400/README.md

@@ -35,7 +35,7 @@ change and `radeon` stays idle.
 ## Login
 
 Graphical login via a Wayland greeter — `greetd` running ReGreet inside the
-`cage` kiosk compositor — configured centrally in `lyrathorpe/swaywm.nix` for
+`cage` kiosk compositor — configured centrally in `../../modules/sway.nix` for
 every Sway host (gated on `features.swayDesktop.enable`). The greeter is forced
 to the Dvorak layout to match the console and Sway session. Set the user
 password (`passwd lyrathorpe`) after install, or the greeter cannot

modules/sssd.nix

@@ -1,130 +0,0 @@
-# Authentik LDAP authentication for NixOS hosts.
-#
-# Wires SSSD (System Security Services Daemon) to the Authentik LDAP outpost so
-# every Linux host authenticates users against the same directory that backs the
-# SSO stack. Enabled by default on every NixOS host via baseModules; the EDaaS
-# WSL box opts out (services.authentikLdap.enable = false) because it is a
-# work-managed Windows-hosted environment.
-#
-# The Authentik LDAP provider exposes NON-standard object classes/attributes
-# (goauthentik.io/ldap/user, goauthentik.io/ldap/group) alongside the POSIX
-# attributes (uid, uidNumber, gidNumber, homeDirectory), so the schema mappings
-# below are explicit rather than relying on an RFC2307 default.
-#
-# The bind password is NOT inlined: services.sssd.config renders to the world-
-# readable Nix store, so the credential is delivered out-of-band by agenix as an
-# sssd.conf drop-in under /etc/sssd/conf.d/ (SSSD merges conf.d/*.conf after the
-# main file). See secrets/README.md.
-{
-  config,
-  lib,
-  ...
-}:
-let
-  cfg = config.services.authentikLdap;
-
-  # Directory coordinates for the Authentik LDAP provider.
-  ldapUri = "ldaps://ldap.lyrapup.pet:636";
-  searchBase = "dc=ldap,dc=goauthentik,dc=io";
-  bindDn = "cn=sssd-bind,ou=users,dc=ldap,dc=goauthentik,dc=io";
-in
-{
-  options.services.authentikLdap.enable =
-    lib.mkEnableOption "SSSD authentication against the Authentik LDAP outpost"
-    // {
-      default = true;
-    };
-
-  config = lib.mkIf cfg.enable {
-    services.sssd = {
-      enable = true;
-
-      # Non-secret sssd.conf. The bind password is injected separately via the
-      # agenix conf.d drop-in (ldap_default_authtok lives there, not here) to
-      # keep it out of the Nix store.
-      config = ''
-        [sssd]
-        config_file_version = 2
-        services = nss, pam
-        domains = default
-
-        [nss]
-        # Do not walk the whole directory for `getent passwd` etc.
-        filter_users = root
-        filter_groups = root
-
-        [pam]
-
-        [domain/default]
-        # --- Providers --------------------------------------------------------
-        id_provider = ldap
-        auth_provider = ldap
-        chpass_provider = none
-        access_provider = permit
-
-        # --- Connection -------------------------------------------------------
-        ldap_uri = ${ldapUri}
-        ldap_search_base = ${searchBase}
-        ldap_default_bind_dn = ${bindDn}
-        ldap_default_authtok_type = password
-        # ldap_default_authtok is supplied by the agenix drop-in in conf.d.
-
-        # --- TLS (LDAPS on 636; no StartTLS) ---------------------------------
-        ldap_id_use_start_tls = false
-        ldap_tls_reqcert = demand
-
-        # --- Schema: Authentik LDAP provider ---------------------------------
-        # Authentik returns DN-valued group membership (member/memberOf), so
-        # rfc2307bis (not rfc2307) is the correct base schema.
-        ldap_schema = rfc2307bis
-
-        # Users: goauthentik.io/ldap/user, keyed by uid; POSIX attrs are
-        # standard names (uidNumber/gidNumber/homeDirectory).
-        ldap_user_object_class = goauthentik.io/ldap/user
-        ldap_user_name = uid
-        ldap_user_uid_number = uidNumber
-        ldap_user_gid_number = gidNumber
-        ldap_user_home_directory = homeDirectory
-        ldap_user_gecos = displayName
-        ldap_user_shell = loginShell
-
-        # Groups: goauthentik.io/ldap/group, keyed by cn.
-        ldap_group_object_class = goauthentik.io/ldap/group
-        ldap_group_name = cn
-        ldap_group_gid_number = gidNumber
-        ldap_group_member = member
-
-        # --- Behaviour --------------------------------------------------------
-        cache_credentials = true
-        enumerate = false
-      '';
-    };
-
-    # agenix delivers the bind password as an sssd.conf drop-in. The decrypted
-    # plaintext IS a valid conf.d snippet:
-    #
-    #   [domain/default]
-    #   ldap_default_authtok = <the bind password>
-    #
-    # SSSD requires conf.d files to be root-owned and 0600 or it ignores them.
-    age.secrets.ldap-bind = {
-      file = ../secrets/ldap-bind.age;
-      path = "/etc/sssd/conf.d/01-ldap-authtok.conf";
-      owner = "root";
-      group = "root";
-      mode = "0600";
-    };
-
-    # Restart SSSD when the credential drop-in changes. agenix writes secrets in
-    # a system activation script that runs before systemd (re)starts services on
-    # a `switch`, so the file is present by the time sssd starts; the trigger
-    # picks up rotations of the bind password.
-    systemd.services.sssd.restartTriggers = [ config.age.secrets.ldap-bind.path ];
-
-    # Create home directories on first login for LDAP users (they have no
-    # locally-provisioned home). NixOS wires nss + the SSSD PAM stack when
-    # services.sssd.enable is true; mkHomeDir adds pam_mkhomedir to it.
-    security.pam.services.login.makeHomeDir = true;
-    security.pam.services.sshd.makeHomeDir = true;
-  };
-}

secrets/README.md

@@ -1,92 +0,0 @@
-# Secrets (agenix)
-
-Encrypted secrets for the fleet, managed with [agenix](https://github.com/ryantm/agenix).
-
-Each secret is an age-encrypted file (`*.age`) encrypted to a set of recipient
-public keys declared in [`secrets.nix`](./secrets.nix). A host decrypts its
-secrets at activation using its SSH **host** key
-(`/etc/ssh/ssh_host_ed25519_key`), so every host that must read a secret has to
-be listed as a recipient for it.
-
-`secrets.nix` is read only by the `agenix` CLI. It is never imported into the
-NixOS evaluation.
-
-## Secrets in this repo
-
-| File            | Purpose                                                                 | Recipients                          |
-| --------------- | ----------------------------------------------------------------------- | ----------------------------------- |
-| `ldap-bind.age` | SSSD → Authentik LDAP bind credential, as an `sssd.conf` drop-in snippet | all SSSD-enabled hosts (not EDaaS)  |
-
-Consumed by [`modules/sssd.nix`](../modules/sssd.nix) via
-`age.secrets.ldap-bind.path`, which places the decrypted snippet at
-`/etc/sssd/conf.d/01-ldap-authtok.conf`.
-
-> **`ldap-bind.age` is not committed yet.** Only `ldap-bind.age.PLACEHOLDER`
-> ships in this change (real host recipient keys and the real password were not
-> available when it was written). Follow the steps below to create the real
-> secret, then delete the `.PLACEHOLDER`.
-
-## Owner setup checklist
-
-Run these once (per new host or when the bind password rotates):
-
-### 1. Collect host recipient keys
-
-On each SSSD-enabled host (all Linux hosts **except** EDaaS):
-
-```sh
-cat /etc/ssh/ssh_host_ed25519_key.pub
-```
-
-Paste each value into the matching placeholder in `secrets.nix`, replacing the
-`AAAA_PLACEHOLDER_REPLACE_ME_*` strings. (Optionally uncomment and set `admin`
-to an operator user key so the secret can be edited off-host.)
-
-### 2. Encrypt the bind password
-
-The plaintext must be a **full sssd.conf drop-in snippet**, because SSSD cannot
-read `ldap_default_authtok` from a separate file — it only merges `conf.d/*.conf`.
-The content is exactly:
-
-```ini
-[domain/default]
-ldap_default_authtok = <the sssd-bind service-account password>
-```
-
-Use the password of the `sssd-bind` (Terraform: `sssd-bind`) Authentik LDAP
-service account. Then, from the repo root:
-
-```sh
-# Requires the agenix CLI: `nix run github:ryantm/agenix -- -e secrets/ldap-bind.age`
-cd secrets
-agenix -e ldap-bind.age
-```
-
-An `$EDITOR` opens; paste the two-line snippet above, save, quit. agenix writes
-the encrypted `ldap-bind.age`. Commit it and delete `ldap-bind.age.PLACEHOLDER`.
-
-### 3. Rekey after changing recipients
-
-If you add/remove hosts in `secrets.nix`, re-encrypt every secret to the new
-recipient set:
-
-```sh
-cd secrets
-agenix -r
-```
-
-### 4. DNS
-
-`ldap.lyrapup.pet` must resolve to the Authentik LDAP outpost and serve LDAPS on
-port 636 with a certificate the hosts trust (`ldap_tls_reqcert = demand`). If the
-cert is not from a system-trusted CA, add it to the hosts' trust store
-(`security.pki.certificateFiles`) or relax `ldap_tls_reqcert` in
-`modules/sssd.nix`.
-
-### 5. Rebuild
-
-```sh
-sudo nixos-rebuild switch --flake .#<host>
-```
-
-Verify with `getent passwd <ldap-user>` and `id <ldap-user>`.

secrets/ldap-bind.age.PLACEHOLDER

@@ -1,21 +0,0 @@
-THIS IS A PLACEHOLDER, NOT A REAL AGE SECRET.
-
-The real secrets/ldap-bind.age is produced by the repo owner with `agenix -e`
-(see secrets/README.md) and is a binary age-encrypted blob. It is intentionally
-NOT committed here because:
-  * the real host age recipients are not available to the author of this change
-    (they are each host's /etc/ssh/ssh_host_ed25519_key.pub), and
-  * fabricating an encrypted blob or fake host keys would be misleading.
-
-Committing this file as `ldap-bind.age` would let modules/sssd.nix reference
-`../secrets/ldap-bind.age` and evaluate, but SSSD would fail to decrypt it at
-runtime. Do ONE of the following before deploying:
-
-  1. Preferred: generate the real secret (secrets/README.md), commit it as
-     secrets/ldap-bind.age, and delete this .PLACEHOLDER file.
-
-The decrypted plaintext must be a valid sssd.conf drop-in (NOT the bare
-password):
-
-    [domain/default]
-    ldap_default_authtok = <the sssd-bind service-account password>

secrets/secrets.nix

@@ -1,15 +0,0 @@
-let
-  lyrathorpe-mbp = "ssh-ed25519 AAAA_PLACEHOLDER_REPLACE_ME_mbp";
-  lyrathorpe-t400 = "ssh-ed25519 AAAA_PLACEHOLDER_REPLACE_ME_t400";
-  lyrathorpe-macpro31 = "ssh-ed25519 AAAA_PLACEHOLDER_REPLACE_ME_macpro31";
-  lyrathorpe-rpi5 = "ssh-ed25519 AAAA_PLACEHOLDER_REPLACE_ME_rpi5";
-  sssdHosts = [
-    lyrathorpe-mbp
-    lyrathorpe-t400
-    lyrathorpe-macpro31
-    lyrathorpe-rpi5
-  ];
-in
-{
-  "ldap-bind.age".publicKeys = sssdHosts;
-}