chore(secrets): placeholder for the LDAP bind secret

.gitea/workflows/ci.yaml

@@ -1,21 +1,15 @@
-# Flake CI. Formatting (treefmt) runs on *every* PR; the heavier Nix work
+# Flake CI: full `nix flake check` (formatting + deadnix + statix + pre-commit)
-# (deadnix/statix/pre-commit lints + per-host evaluation) runs only when the
+# plus an explicit per-host evaluation pass for granular output.
-# change can affect it.
 name: CI
 
 # Deliberately no `paths:` filter. This job is a required status check on main,
 # and a path-filtered workflow is *skipped* (never runs) for PRs that touch no
 # matching file -- which leaves the required check pending forever and blocks the
 # merge (e.g. a .renovaterc.json-only change). So the workflow always runs and
-# always reports.
+# always reports. To avoid burning a full Nix evaluation on changes that can't
-#
+# affect it, the "detect" step below diffs the PR and the heavy steps run only
-# Two tiers of checks:
+# when a .nix file, flake.lock, or this workflow changed; otherwise they skip and
-#   * Formatting always runs. treefmt covers Markdown, YAML, and JSON as well as
+# the job still passes. The required check is therefore always green-reportable.
-#     Nix and shell, so a docs- or config-only PR must be format-checked too. It
-#     is cheap (no host evaluation).
-#   * The heavy steps (full `nix flake check` + host evals) run only when a .nix
-#     file, flake.lock, or this workflow changed; otherwise they skip and the job
-#     still passes, keeping the required check green-reportable.
 on:
   push:
     branches: [main]
@@ -31,10 +25,11 @@ jobs:
           # Full history so the detect step can diff the PR against its base.
           fetch-depth: 0
 
-      # Decide whether the *heavy* Nix steps need to run. On a pull_request, diff
+      # Decide whether the Nix steps need to run. On a pull_request, diff the PR
-      # against the base for files that can affect them: any .nix, the lockfile,
+      # against its base and look for files that can affect the flake: any .nix,
-      # or this workflow. On any other event (push to main) always run. The
+      # the lockfile, or this workflow. On any other event (push to main) always
-      # formatting step below is unaffected -- it always runs.
+      # run. The job itself always succeeds, so the required status check is
+      # reported even when the heavy steps are skipped.
       - name: Detect Nix-relevant changes
         id: detect
         run: |
@@ -50,16 +45,16 @@ jobs:
           echo "Changed files:"
           echo "$changed"
           if echo "$changed" | grep -Eq '(\.nix$|^flake\.lock$|^\.gitea/workflows/ci\.yaml$)'; then
-            echo "Nix-relevant changes found: running heavy checks."
+            echo "Nix-relevant changes found: running checks."
             echo "run=true" >> "$GITHUB_OUTPUT"
           else
-            echo "No Nix-relevant changes: heavy checks skip (formatting still runs)."
+            echo "No Nix-relevant changes: skipping checks (job still passes)."
             echo "run=false" >> "$GITHUB_OUTPUT"
           fi
 
-      # Nix drives the formatting check, so install it unconditionally.
       - name: Install Nix
-        uses: cachix/install-nix-action@a49548c11d9846ad46ecc0115273879b045f001c # v31
+        if: steps.detect.outputs.run == 'true'
+        uses: cachix/install-nix-action@8aa03977d8d733052d78f4e008a241fd1dbf36b3 # v31
         with:
           extra_nix_config: |
             experimental-features = nix-command flakes
@@ -67,13 +62,6 @@ jobs:
             substituters = https://cache.nixos.org https://nix-community.cachix.org
             trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=
 
-      # Always run: treefmt formats Markdown/YAML/JSON (docs + config) as well as
-      # Nix and shell, so documentation-only PRs are format-checked too. This is
-      # the cheap gate (no host evaluation) and pre-builds the `formatting`
-      # derivation that the flake check below reuses from cache.
-      - name: Formatting check
-        run: nix build --print-build-logs '.#checks.x86_64-linux.formatting'
-
       # Runs every flake check: treefmt formatting, deadnix, statix, and the
       # pre-commit hooks (so a --no-verify commit can't ship unlinted).
       - name: Flake check

CLAUDE.md

@@ -1,63 +0,0 @@
-# Working on this flake
-
-Project notes for changes to this repository. Persona and memory rules live in
-the user-global config; this file is about the flake's checks and conventions.
-
-## Before you commit: run the formatter
-
-Formatting and linting are driven by the flake. CI (`.gitea/workflows/ci.yaml`)
-runs `nix flake check`, which fails the build if any file is unformatted or trips
-a lint. From the repo root:
-
-- `nix fmt` — format the whole tree (writes changes).
-- `nix flake check` — run every check read-only (what CI runs).
-- `nix develop` — dev shell; its `shellHook` installs the git pre-commit hooks so
-  the same gates run on `git commit`.
-
-Never commit with `--no-verify`. A bypassed commit ships unformatted content and
-turns CI red on the next push to `main` (see "Docs are checked too").
-
-## What gets checked
-
-Defined in `flake.nix` (the `treefmt`, `pre-commit`, and `checks` blocks) and
-`statix.toml`:
-
-| Check        | Tool                              | Covers                                                  |
-| ------------ | --------------------------------- | ------------------------------------------------------- |
-| `formatting` | treefmt → `nixfmt`                | all `*.nix`                                             |
-| `formatting` | treefmt → `shfmt`                 | shell scripts                                           |
-| `formatting` | treefmt → `prettier`              | **Markdown, YAML, JSON** (incl. `README.md`, this file) |
-| `deadnix`    | deadnix                           | dead Nix bindings (`--no-lambda-pattern-names`)         |
-| `statix`     | statix                            | Nix antipatterns (config in `statix.toml`)              |
-| pre-commit   | nixfmt-rfc-style, deadnix, statix | the same gates, run on commit                           |
-
-Excluded from formatting: `*/hardware-configuration.nix` (generated by
-`nixos-generate-config`) and `flake.lock`. Editor defaults (indent, EOL, final
-newline) are in `.editorconfig`; note Markdown keeps trailing whitespace, which
-encodes hard line breaks.
-
-## Docs are checked too
-
-prettier formats `*.md`, so **documentation edits must be run through `nix fmt`**
-exactly like code. prettier re-aligns Markdown tables in particular; hand-editing
-a table almost always leaves it non-conformant and fails the `formatting` check.
-
-The CI `formatting` step runs on **every** PR — including docs- and config-only
-changes — so a Markdown/YAML/JSON edit is format-checked before merge, not just
-after it lands on `main`. (The heavier `deadnix`/`statix`/`pre-commit` lints and
-the per-host evaluation still run only when a `.nix` file, `flake.lock`, or the
-workflow changed; see `.gitea/workflows/ci.yaml`.) Run `nix fmt` before you
-commit and the formatting check stays green.
-
-## Host evaluation
-
-CI also evaluates every `nixosConfigurations` / `darwinConfigurations` host's
-toplevel (eval only, no build) on an x86_64 runner, so eval errors fail cheaply.
-Reproduce locally:
-
-```sh
-nix eval --raw ".#nixosConfigurations.<host>.config.system.build.toplevel.drvPath"
-```
-
-Host lists are discovered from the flake, so adding or removing a host needs no
-change to the workflow.

README.md

@@ -12,67 +12,16 @@ 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) — [notes](./hosts/EDaaS/README.md)                                                 |
+| `emmathorpe-edaas`    | `x86_64-linux`   | Work WSL box (NixOS-WSL)                                                                                    |
 | `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) — [notes](./hosts/Darwin/README.md)                                                      |
+| `lyrathorpe-mac`      | `aarch64-darwin` | macOS (nix-darwin)                                                                                          |
 
 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), `modules/desktop.nix` (wired desktops: NetworkManager), and
+lid), and `modules/ssh.nix` (key-only sshd). The x86 hosts also pull
-`modules/ssh.nix` (key-only sshd). The x86 hosts also pull `nixos-hardware`
+`nixos-hardware` profiles.
-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
 
@@ -89,16 +38,6 @@ 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:
@@ -113,6 +52,33 @@ 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
@@ -122,36 +88,6 @@ 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):
@@ -202,7 +138,4 @@ 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. It always runs (no `paths:`
+NixOS and Darwin host configuration on push/PR.
-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.lock

@@ -3,16 +3,16 @@
     "brew-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1783446865,
+        "lastModified": 1781226006,
-        "narHash": "sha256-nCrPEbQjgnSAOVWTxRXD9Yi6P3oECdtZISYcQCFI9Fs=",
+        "narHash": "sha256-w4ZTuOnhYiDxjaynrMTASzp802QblBWmo3wpB8wVN4Y=",
         "owner": "Homebrew",
         "repo": "brew",
-        "rev": "655769712a9a9499563d9685a8488f349354492d",
+        "rev": "109191be4988470b51a60a5ef1998520aa24c01b",
         "type": "github"
       },
       "original": {
         "owner": "Homebrew",
-        "ref": "6.0.9",
+        "ref": "6.0.1",
         "repo": "brew",
         "type": "github"
       }
@@ -25,11 +25,11 @@
       },
       "locked": {
         "dir": "pkgs/firefox-addons",
-        "lastModified": 1783828963,
+        "lastModified": 1782014564,
-        "narHash": "sha256-eTytzcUJCaDUZ3/9EF0+V3fvlikQMQBwiX1Sx4Gy+No=",
+        "narHash": "sha256-F/royQHyJAyKWKrV8AaG4Yf1yjzxa+PFk5xvTdvBrzk=",
         "owner": "rycee",
         "repo": "nur-expressions",
-        "rev": "8d61e9afde605cd6c22dab68b83d7a71f0a6c5b2",
+        "rev": "d6668e34bbce788459883a1097bf0ee170f49c61",
         "type": "gitlab"
       },
       "original": {
@@ -93,11 +93,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1782949081,
+        "lastModified": 1778716662,
-        "narHash": "sha256-vp6Y/Grm98ESt6ceOkWiHWyZRDV3J1RID4w+6NWK9yA=",
+        "narHash": "sha256-m1Yf0wZ8j1OHjTc2UwHwyQRSnNeSgLJOd7q5Y45hzi4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "17c9d6cdfc60c64f4ee8d306f9bc0b4ccb51481e",
+        "rev": "f7c1a2d347e4c52d5fb8d10cb4d94b5884e546fb",
         "type": "github"
       },
       "original": {
@@ -130,16 +130,17 @@
     "git-hooks": {
       "inputs": {
         "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1783008725,
+        "lastModified": 1781733627,
-        "narHash": "sha256-jGiy6+sxjNWXSjp25uoJuNfyH9zBK1PEDY0lVoL4ibQ=",
+        "narHash": "sha256-U3yTuGBnmXvXoQI3qkpfEDsn9RovQPAjN7ndRco+3u0=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "bca82caa46d5ec0f5d422c61fb1e30bc51313cbe",
+        "rev": "3bbec39bc90eadfa031e6f3b77272f3f60803e39",
         "type": "github"
       },
       "original": {
@@ -148,6 +149,27 @@
         "type": "github"
       }
     },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -155,11 +177,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1783740085,
+        "lastModified": 1781981105,
-        "narHash": "sha256-qajyHfZY29G2oEQk+uHxmsJcRoBUBXP9maTpFlwP/dI=",
+        "narHash": "sha256-/1nNBbA7PrSQpTc9Qazkhl4kIPg+TNl0CjxS3UQJKlw=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "3cd22efe6471dc7365c822bd9ad73a21e55f38fb",
+        "rev": "7bfff44b465909f69a442701293bc0badcf476dc",
         "type": "github"
       },
       "original": {
@@ -192,11 +214,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1783744694,
+        "lastModified": 1781772065,
-        "narHash": "sha256-2cp6N3rrwnGYLTx9l6N+NI+kwrCWxvJUbj5WJhvB29A=",
+        "narHash": "sha256-xIbRSwDB1GBAUsWsQZUjudGfAGQt3BOpsWaO/ugVa4w=",
         "owner": "nix-darwin",
         "repo": "nix-darwin",
-        "rev": "c3e90c89649b07d1a96e4b9dd6cd0d6e44b91a74",
+        "rev": "adda04f0bf4819575b1978c2f8d78401b3c2be12",
         "type": "github"
       },
       "original": {
@@ -211,11 +233,11 @@
         "brew-src": "brew-src"
       },
       "locked": {
-        "lastModified": 1783875858,
+        "lastModified": 1781389246,
-        "narHash": "sha256-+yYNOkj/bkVQmwKH0hewqwBwAEoh4Gq2BmQPIP1jNrg=",
+        "narHash": "sha256-ORqLAo/hoJdsZC7UPAuEHev6S0+XIqKEC7vjo5prz1k=",
         "owner": "zhaofengli",
         "repo": "nix-homebrew",
-        "rev": "60641da8324e6a1af716a0340d901ccb131c91ef",
+        "rev": "de7953a08ed4bb9245be043e468561c17b89130d",
         "type": "github"
       },
       "original": {
@@ -231,11 +253,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1783864904,
+        "lastModified": 1782030356,
-        "narHash": "sha256-BQxN5UMg9FOevAsgBRwPxfxlh51Puj+dNn/8Dsi3sPM=",
+        "narHash": "sha256-h4WpMr455AfRub0FXBaon6Vcpe0waUyJ4GivIW6oyd4=",
         "owner": "nix-community",
         "repo": "nix-index-database",
-        "rev": "1111b9bc836afb7e31a7014e8d1272de9b1c917d",
+        "rev": "3017088b49efd404f78e3b104f553b97e4af786b",
         "type": "github"
       },
       "original": {
@@ -252,11 +274,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1783669315,
+        "lastModified": 1781520503,
-        "narHash": "sha256-DjIkyK48jWUxYCCoTDS9L5PgGg6/RFRSRXW2dSFpJg8=",
+        "narHash": "sha256-XuqQQG1qRyc3o8ld937sDLQNx+QrGV852KJ0dNglJDg=",
         "owner": "nix-community",
         "repo": "nixos-apple-silicon",
-        "rev": "9e46a0edd8a6d96538d146a4bb4477e7fae8b1a0",
+        "rev": "43043ad207529650f9fa68e1705f7cf9c08bfdeb",
         "type": "github"
       },
       "original": {
@@ -272,11 +294,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1783792734,
+        "lastModified": 1781622756,
-        "narHash": "sha256-50rvY9GdFvpYDcMLcD/4cWSi0hVxArT5wsGlVsHy8eY=",
+        "narHash": "sha256-JrPh4M6S7aPsEE9tOENuZrxC6o2szSLlK+t4+nLke9s=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "8efb4337e857949f4cfac86d12ef1066f417f31f",
+        "rev": "08018c72174a4df5657f8d94178ac69fb9c243e5",
         "type": "github"
       },
       "original": {
@@ -293,11 +315,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1783897948,
+        "lastModified": 1781182279,
-        "narHash": "sha256-wusXpttNJn7SvUMvGLpNuJgcwIIkMwlWNnasPPxpftg=",
+        "narHash": "sha256-V5EQQbDnmdiXGQXrEF1PEL7QYsFqfH8N1E89Z5ONwFk=",
         "owner": "nix-community",
         "repo": "NixOS-WSL",
-        "rev": "7348d3f38ab1bd6abe156a923fab6f43656b168f",
+        "rev": "5675822ba756e6e56f8f6a5a76e90e0da2ece94d",
         "type": "github"
       },
       "original": {
@@ -308,11 +330,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1783703440,
+        "lastModified": 1781216227,
-        "narHash": "sha256-O3/YajjWo001VUIgD8BwaRdSNLUFe7nZ1qV5TwhRBcw=",
+        "narHash": "sha256-9mUW6gNwoN2SWc/l0fW4svPNOulXLl8ijqKyeSOGgJE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8f0500b9660505dc3cb647775fe9a978a74b5283",
+        "rev": "a0374025a863d007d98e3297f6aa46cc3141c2f0",
         "type": "github"
       },
       "original": {
@@ -324,11 +346,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1783776592,
+        "lastModified": 1781577229,
-        "narHash": "sha256-UgCQzxeWI75XM8G+hPrPh+MKzEPjG3SpAj7dtqSbksA=",
+        "narHash": "sha256-lrp67w8AulE9Ks53n27I45ADSzbOCn4H+CNW1Ck8B+8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3",
+        "rev": "567a49d1913ce81ac6e9582e3553dd90a955875f",
         "type": "github"
       },
       "original": {
@@ -347,11 +369,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1782919967,
+        "lastModified": 1781971008,
-        "narHash": "sha256-pRwjfB5HQJ3m8J8bOR43pPHtHI7VUJSqwLA3P06cOY0=",
+        "narHash": "sha256-T2u2RQZWKvD1J+TgcxjiJr8IymBr/PrUNeAGhMZFZU4=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "667c8471f4a0fb24d702d1a61af8609f1a5f1ba6",
+        "rev": "7afca458f064f166d3a9c98db3b41a984fe46492",
         "type": "github"
       },
       "original": {

flake.nix

@@ -46,6 +46,15 @@
       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
@@ -123,7 +132,9 @@
           ./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;

home/claude/memory/MEMORY.md

@@ -1,14 +1,11 @@
 - [User name](user_name.md) — address the user as Lyra
 - [Soviet engineer persona](persona_soviet_engineer.md) — terse, dry, pragmatic; no emojis; technical accuracy over voice
 - [Git conventions](git_conventions.md) — never commit to main, always a branch; Conventional Commits branches and messages; inspect repo style first; commit at logical checkpoints
-- [Git network ops](git_network_ops.md) — GitHub and Gitea (code.emmathe.dev) both pushable in-sandbox (sandbox off, agent key); raise Gitea PRs via tea CLI
+- [Git network ops](git_network_ops.md) — GitHub pushable in-sandbox (agent key; just sandbox off); Gitea code.emmathe.dev needs hand-off
-- [Git commit signing](git_commit_signing.md) — signs in-sandbox via ssh-agent (allowAllUnixSockets + inlined pubkey); sig=N without allowedSignersFile is cosmetic, still signed
+- [Git commit signing](git_commit_signing.md) — signs in-sandbox via ssh-agent (allowAllUnixSockets + inlined pubkey)
 - [Git check state first](git_check_state.md) — always check branch/status/divergence before git work; Lyra edits repos between sessions
 - [Keep docs updated](docs_keep_updated.md) — update docs in the same pass as code/config changes; stale docs are a defect
-- [SIBO Workabout MX project](sibo_workabout_mx_scanner.md) — RE + barcode-inventory project state; scanner is an OO DYL object (oscanner), blocked on on-device ordinal capture; resume via code/inventory/CONTINUATION.md
 - [Jira tooling](jira_tooling.md) — comments are Markdown not wiki; transitions may need assignee; link direction; WSP transition IDs
-- [Jira WSP fields](jira_wsp_fields.md) — WSP field map: issue-type IDs, required Bug fields with allowed values/IDs, Task shortcut, relevant components
 - [Review and comments workflow](workflow_review_and_comments.md) — show PR body and non-trivial Jira comments before posting; terse IaC code comments; PR body content rules
 - [Sandbox prompts](feedback_sandbox_prompts.md) — don't prompt for sandbox-disable or routine read-only shell ops; broaden permissions instead
 - [Dev clusters disposable](dev_clusters_disposable.md) — Lyra's dev clusters are recreatable; mutate/break freely, no confirmation needed
-- [Nix shell tooling](nix_shell_tooling.md) — any nixpkgs tool runs ad hoc via `nix run`/`nix shell nixpkgs#<pkg>`; a missing command is never a dead end

home/claude/memory/git_commit_signing.md

@@ -1,6 +1,6 @@
 ---
 name: git-commit-signing
-description: "Commits sign in-sandbox via ssh-agent (allowAllUnixSockets + inlined pubkey); local verify shows sig=N without an allowedSignersFile but the commit IS signed."
+description: "Commits sign in-sandbox via ssh-agent — needs `allowAllUnixSockets: true` in settings, plus pubkey inlined in user.signingkey."
 metadata:
   node_type: memory
   type: feedback
@@ -19,6 +19,4 @@ Lyra's git is configured to SSH-sign commits (`commit.gpgsign=true`, `gpg.format
 
 **How to apply:** Commit normally with `git commit`. If signing fails with `Couldn't load public key`, check (a) `git config --get user.signingkey` starts with `key::ssh-ed25519 AAAA...` (not literal `$(...)`), (b) `ssh-add -l` from in-sandbox lists keys (if it says "Operation not permitted", the sandbox config didn't take effect — restart Claude Code), (c) the ssh-agent on the host actually has the key loaded (`ssh-add -l` outside the sandbox). Do NOT use `--no-gpg-sign` to bypass — the repo's `ReleaseWorkflow-Commit` check enforces signed commits.
 
-**Verifying — the recurring trap:** `git log --show-signature` and the `%G?` format both report `N` and print `error: gpg.ssh.allowedSignersFile needs to be configured and exist for ssh signature verification`. This does NOT mean the commit is unsigned — it means git has no local allowed-signers file to check it against. The signature is present. Confirm the real state with `git cat-file commit <ref> | grep -i '^gpgsig'`: an `-----BEGIN SSH SIGNATURE-----` block means signed. So `N` here is cosmetic, not a signing failure — do not "fix" it by re-committing. To make local verification actually pass, set `gpg.ssh.allowedSignersFile` to a file mapping the signer to the pubkey (a line like `emma.thorpe@cloud.com ssh-ed25519 AAAA...`); Gitea/CI verifies server-side regardless.
-
 Related: [[git-network-ops]], [[git-conventions]].

home/claude/memory/git_network_ops.md

@@ -1,6 +1,6 @@
 ---
 name: git-network-ops
-description: Push/pull is remote-specific — both GitHub and Gitea (code.emmathe.dev) are agent-pushable in-sandbox (sandbox off); raise Gitea PRs with the tea CLI.
+description: Push/pull is remote-specific — GitHub is agent-pushable in-sandbox; Gitea (code.emmathe.dev) needs hand-off to Lyra.
 metadata:
   node_type: memory
   type: feedback
@@ -11,8 +11,8 @@ Whether a network op can run depends on which key the remote needs:
 
 **GitHub remotes (e.g. csg-citrix-storefront/\*): pushable in-sandbox by the agent.** ssh-agent holds the decrypted `~/.ssh/id_ed25519` (`emma.thorpe@cloud.com`), which is authorized on GitHub. Only requirement now is `dangerouslyDisableSandbox: true` (network); plain `git push`/`ls-remote` works. Probe non-mutatively with `git ls-remote` first. (Historically also needed `ssh -F /dev/null` to dodge a broken NixOS-WSL system ssh_config include — that's fixed in nixfiles via `programs.ssh.systemd-ssh-proxy.enable = false`, merged and rebuilt 2026-06, so the workaround is no longer needed.)
 
-**Gitea (`code.emmathe.dev`, e.g. nixfiles): pushable in-sandbox by the agent (as of 2026-07-14).** The ssh-agent now holds the `code.emmathe.dev` key (`git@code.emmathe.dev`), so `git push` works with `dangerouslyDisableSandbox: true` — it needs the agent socket plus `~/.ssh/known_hosts`, both reachable with sandbox off. Probe with `git ls-remote` first. Raise PRs with the `tea` CLI, which is installed and logged in to `code.emmathe.dev` (user `lyrathorpe`): `tea pr create --login code.emmathe.dev --repo lyrathorpe/nixfiles --base main --head <branch> --title "..." --description "..."`. Only fall back to hand-off if `ssh-add -l` (sandbox off) does NOT list the `code.emmathe.dev` key — then it dropped from the agent and Lyra must re-add it (`ssh-add ~/.ssh/code.emmathe.dev`, passphrase-protected).
+**Gitea (`code.emmathe.dev`, e.g. nixfiles): hand off to Lyra.** Needs `~/.ssh/code.emmathe.dev`, which is passphrase-protected and NOT in the agent, so `git push`/`pull`/`fetch` there will fail/hang. Pause, give Lyra the exact command (she runs `ssh-add ~/.ssh/code.emmathe.dev` once, then pushes).
 
 **Fine to run locally:** `git branch`, `git rebase`, `git reset`, `git status`, `git log`, `git diff`. `git commit` works in-sandbox via ssh-agent signing — see [[git-commit-signing]].
 
-**How to apply:** Both remotes → do it with sandbox off; probe with `git ls-remote` first, and raise Gitea PRs via `tea`. Hand off only if the Gitea key is missing from the agent. Related: [[git-conventions]].
+**How to apply:** Check the remote host before a network op. GitHub → just do it (sandbox off). Gitea → hand off. Related: [[git-conventions]].

home/claude/memory/jira_wsp_fields.md

@@ -1,32 +0,0 @@
----
-name: jira-wsp-fields
-description: WSP Jira project field map — issue-type IDs, required Bug fields with allowed values/IDs, and the Task shortcut for fast ticket creation
-metadata:
-  type: reference
----
-
-Field map for the **WSP (Workspace Platform)** Jira project, to create tickets without trial-and-error. Site `citrix.atlassian.net`, cloudId `70cbc59a-06d2-4508-a9a6-61f1dbc2057f`, project key `WSP`, project id `10061`. See also [[jira-tooling]].
-
-**Issue-type IDs:** Epic `10000`, Story `10004`, Task `10008`, Bug `10123`, Sub-task `10009`.
-
-**Fast path — use Task, not Bug.** A `Task` requires only `summary` (project/issuetype auto, reporter defaults to caller). A `Bug` requires six extra fields (below), so only pick Bug when it must be a Bug. The sibling infra/remediation tickets in WSP are Tasks.
-
-**Bug required fields** (enforced by the create validator; note `createmeta` omits `versions` but the API rejects without it):
-
-| Field               | Key                 | Shape                                  | Allowed values (value = id)                                                                                       |
-| ------------------- | ------------------- | -------------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
-| Severity            | `customfield_10061` | `{"value":"S2"}`                       | S1=10643, S2=10644, S3=10645, S4=10646                                                                            |
-| Affects Environment | `customfield_10116` | `{"value":"Production"}`               | Production=11031, Staging=11032, Integration=11033, Development=11034, Test=11035                                 |
-| Defect Source       | `customfield_10138` | `{"value":"Internal - Manual"}`        | Internal - Manual=12699, Internal - Automation=12700, Customer=12702, Security Review=12704                       |
-| Regression          | `customfield_10141` | `{"value":"No"}`                       | Yes - Previous Build=12705, Yes - Previous Release=12706, No=12707                                                |
-| Components          | `components`        | `[{"name":"Workspace Configuration"}]` | 109 options; relevant ones below                                                                                  |
-| Affects versions    | `versions`          | `[{"name":"<version>"}]`               | not in requiredFieldsOnly createmeta — fetch current list from full createmeta or project versions before setting |
-
-Select customfields (`...customfieldtypes:select`) accept `{"value":"..."}` or `{"id":"..."}`. Components/versions accept `[{"name":...}]` or `[{"id":...}]`.
-
-**Relevant Components (name=id):** Workspace Configuration=12052, Workspace-Platform=12060, Multicluster Platform=12023, WSP Core Ingress=12037, Microservice Infrastructure=12020, Infrastructure=34375, Custom Domain Proxy=12021, Custom Domain Ingress Manager=11968, Custom Domain Infrastructure=11975, StoreFrontConfiguration=12042, StoreFront=12050, Test Infrastructure=12012, WSP Release Infrastructure=12011.
-
-**Other create notes:** pass `description`/`commentBody` with `contentFormat: markdown`; set labels via `additional_fields {"labels":[...]}`; attach to an epic with the top-level `parent` param (`parent: "WSP-32494"` works for epic→Task). WSP transition IDs live in [[jira-tooling]].
-
-Example Bug `additional_fields`:
-`{"customfield_10061":{"value":"S2"},"customfield_10116":{"value":"Production"},"customfield_10138":{"value":"Internal - Manual"},"customfield_10141":{"value":"No"},"components":[{"name":"Workspace Configuration"}],"versions":[{"name":"<version>"}],"labels":["..."]}`

home/claude/memory/nix_shell_tooling.md

@@ -1,23 +0,0 @@
----
-name: nix-shell-tooling
-description: "Any nixpkgs tool can be run ad hoc via nix run / nix shell — a missing command is never a dead end during development"
-metadata:
-  node_type: memory
-  type: feedback
-  originSessionId: dfb56b58-518b-4daf-b531-7119bb4a9534
----
-
-Any tool in nixpkgs can be run without installing it into the environment. If a
-command is missing during development, pull it from nixpkgs on the fly instead
-of working around its absence or reporting the tool as unavailable.
-
-**Why:** Lyra runs NixOS; the ambient PATH is deliberately minimal, but the full
-nixpkgs set is always one command away. "command not found" is not a blocker.
-
-**How to apply:**
-
-- One-off run: `nix run nixpkgs#<pkg> -- <args>` (e.g. `nix run nixpkgs#jq -- .`).
-- Tools on PATH for a session: `nix shell nixpkgs#<pkg> [nixpkgs#<pkg2> ...]`,
-  then run commands normally.
-- Legacy form also works: `nix-shell -p <pkg> --run '<cmd>'`.
-- Prefer this over hand-rolling a substitute for a tool that exists in nixpkgs.

home/claude/memory/sibo_workabout_mx_scanner.md

@@ -1,25 +0,0 @@
----
-name: sibo-workabout-mx-scanner
-description: State of the Psion Workabout MX reverse-engineering / barcode-inventory project and how to resume it
-metadata:
-  node_type: memory
-  type: project
-  originSessionId: 74de014e-9cf4-47f6-92f4-c34197ac1858
----
-
-Long-running project (July 2026) reverse-engineering the **Psion Workabout MX** (SIBO OS, NEC V30MX, TopSpeed C) to build a barcode **inventory demo** (scan UPC → DBF database file; add stock, consume by a quantity unit) and, alongside, **complete device programming documentation**. Repo: Gitea **lyrathorpe/sibo-playground**, working branch **`feat/inventory-phase1-scan`** (unmerged). Gitea needs hand-off / the contents API for pushes — see [[git-network-ops]]; [[git-conventions]] for branch/PR rules.
-
-**Committed on the branch (durable, survive reboot):**
-
-- `docs/reference/00-08` + index — the SIBO/MX programming reference (building apps, system/OS, I/O devices, PLIB core, file system & DBF, UI, hardware, and RE'd boot/OS-call internals).
-- `code/inventory/` — app scaffold: `upc.c/.h` (UPC-A check-digit validation, correct), `bcode.c/.h`, `scan.c` (Phase-1 diagnostics), `README.md`, **`SCANNER-API.md`** (all scanner findings), **`CONTINUATION.md`** (the on-device debugging procedure to finish).
-- `docs/mx-re/toolchain-and-plan.md` — the RE toolchain.
-- The **ROM `w2mx_v7.20f_eng.bin`** and the full **SDK + HDK** (manuals as `docs/*.txt`; headers/libs/`bar*.ldd` under `code/SIBOSDK/`; HDK under `code/HDK/`) are on the branch. `/tmp/claude/sibo/` working files (ROM slices, MAME rom dir, Ghidra/decomp output) are transient and reproducible from the toolchain doc.
-
-**Scanner — key result:** the integral laser is driven as an **OO library object** in `SCANNER.DYL` (category token **`oscanner`**) via `p_getlibh` → `p_newsend`/`f_newsend` → `p_send`, over **LIBMANAGER (INT 0x84)** / **MESSMANAGER (INT 0x83)** — NOT raw device I/O. Confirmed on the physical device: `p_open("WL2:D")` + control ops **6** then **7** (`p_iow(chan,6); p_iow(chan,7)`) fire the laser to a good decode (green LED). Default Symbol2 11-byte param block: `04 3f 01 15 06 04 1e 80 0d 0a 06` (decoded output is CR/LF-terminated). Dead ends (do not retry): raw `TTY:D` reads, and the wand `BAR:` / `bar*.ldd` decoders (probe expansion slots → `-41`).
-
-**Blocked on / next step:** the OO **message ordinals + parameter structs** for init / set-params / trigger / read. OLIB assigns ordinals dynamically across the class hierarchy (base classes in `olib`/`hwim`), so they resolve only at runtime — capture them with the **SIBO Debugger on the physical device** (remote debug over serial; it supports breakpoints inside DYLs). MAME cannot inject a barcode, so the last mile must be on hardware. Full step-by-step is in `code/inventory/CONTINUATION.md`.
-
-**RE toolchain (reproducible):** the ROM is MAME machine **`psionwamx`**; run its debugger headless via `xvfb-run -a mame psionwamx -rompath roms -debug -debugscript CMDS -sound none -seconds_to_run N` (MAME lua input injection into the keyboard matrix does NOT work headless — a known limitation). Static: **radare2** (16-bit x86). Decompile: **Ghidra headless** (processor `x86:LE:16:Real Mode`, a Java GhidraScript — Ghidra 12 has no bundled Python). Get MAME/radare2/Ghidra via `nix-shell -p ...`. Details in `docs/mx-re/toolchain-and-plan.md`.
-
-**Fallback to deliver value now:** Phase 2 (the DBF inventory: add stock, consume by quantity) can be built with keyboard UPC entry against `docs/reference/05-filesystem-dbf.md`, dropping the scanner in behind the same interface once retrieval is finished. [[docs-keep-updated]]

hosts/Darwin/README.md

@@ -1,51 +0,0 @@
-# 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

@@ -1,53 +0,0 @@
-# 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

@@ -62,6 +62,11 @@
 
   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 `../../modules/sway.nix` for
+`cage` kiosk compositor — configured centrally in `lyrathorpe/swaywm.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
-   # hosts/RPi5/hardware-configuration.nix in this repo, then commit
+   # system/machine/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
@@ -28,8 +28,7 @@ Headless `aarch64-linux` server with two roles:
    nh os switch
    ```
 4. Give the login user a password (`passwd lyrathorpe`) and confirm the key in
-   the user registry (`../../users/registry.nix`, applied by
+   `system/modules/ssh.nix` is the one you will connect with.
-   `../../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 `../../modules/sway.nix` for
+`cage` kiosk compositor — configured centrally in `lyrathorpe/swaywm.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

@@ -0,0 +1,130 @@
+# 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

@@ -0,0 +1,92 @@
+# 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

@@ -0,0 +1,21 @@
+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

@@ -0,0 +1,15 @@
+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;
+}