config: Disable Dank

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018Sv2QAunLcLo3tS1YsfLgN

docs/superpowers/plans/2026-07-24-dank-material-shell.md

@@ -0,0 +1,289 @@
+# DankMaterialShell (niri) Profile Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Add a `my.profiles.dank` NixOS profile that runs DankMaterialShell (DMS) on the niri Wayland compositor as a login session parallel to KDE on mibook, backed by a new opt-in `my.profiles.home-manager` module.
+
+**Architecture:** Three flake inputs (`home-manager`, `niri` = niri-flake, `dank` = DankMaterialShell) are added to `flake.nix`. A `my.profiles.home-manager` module unconditionally imports the home-manager NixOS module and, when enabled, sets global HM settings. A `my.profiles.dank` module enables `my.profiles.home-manager` as a dependency, turns on niri (system session) + the DMS nixosModule (daemons/packages), and configures `home-manager.users.finn` with the DMS + niri-flake HM modules for keybinds/spawn. mibook enables `dank`.
+
+**Tech Stack:** Nix flakes, flake-parts, NixOS modules, home-manager (as NixOS module), niri-flake, DankMaterialShell flake, quickshell (from `pkgs.unstable`).
+
+## Global Constraints
+
+- Do **not** modify `machines/configuration.nix`. `inputs` and `self` are already threaded into every module via `_module.args`; consume them as module arguments.
+- **Top-level `imports` must reference flake modules via `self.inputs.*`, not `inputs.*`.** `self` is a specialArg (available during `imports` resolution); `inputs` comes from `_module.args` (config-derived) and using it in an `imports` list causes infinite recursion. Inside the `config` body (including nested `home-manager.users.<name>.imports`), either `inputs` or `self.inputs` is fine.
+- Base channel is pinned `nixpkgs/nixos-26.05`; `pkgs.unstable` overlay is available everywhere. quickshell must come from `pkgs.unstable.quickshell` (needs ≥ 0.3.0).
+- home-manager scoped to user `finn` only; `home.stateVersion = "26.05"`.
+- Follow the existing profile pattern exactly: `let cfg = config.my.profiles.<name>; in { options.my.profiles.<name>.enable = lib.mkEnableOption "..."; config = lib.mkIf cfg.enable { ... }; }`.
+- Format every new/edited `.nix` file with `nixfmt-rfc-style` before committing.
+- Commit messages end with the repo's trailer lines (Co-Authored-By + Claude-Session) as seen in recent history.
+- KDE (`my.profiles.kde-desktop`) stays enabled on mibook; do not remove it.
+
+---
+
+### Task 1: Add flake inputs
+
+**Files:**
+- Modify: `flake.nix:4-15` (the `inputs = { ... }` block)
+
+**Interfaces:**
+- Produces: flake inputs `inputs.home-manager`, `inputs.niri`, `inputs.dank`, reachable from any NixOS module (via the existing `_module.args.inputs = self.inputs`). Later tasks consume `inputs.home-manager.nixosModules.home-manager`, `inputs.niri.homeModules.niri`, `inputs.dank.nixosModules.dank-material-shell`, `inputs.dank.homeModules.dank-material-shell`, `inputs.dank.homeModules.niri`.
+
+- [ ] **Step 1: Add the three inputs**
+
+In `flake.nix`, inside the `inputs = { ... }` block, after the `nixos-generators` entry and before the closing `};`, add:
+
+```nix
+    home-manager = {
+      url = "github:nix-community/home-manager/release-26.05";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    niri.url = "github:sodiboo/niri-flake";
+    dank.url = "github:AvengeMedia/DankMaterialShell";
+```
+
+- [ ] **Step 2: Resolve the lock file**
+
+Run: `nix flake lock`
+Expected: completes without error; `flake.lock` gains `home-manager`, `niri`, `niri-flake`-transitive, and `dank` (DankMaterialShell) nodes. If it reports a bad URL, re-check the `github:owner/repo` strings.
+
+- [ ] **Step 3: Verify inputs expose the expected outputs**
+
+Run: `nix eval --raw '.#nixosConfigurations.mibook.pkgs.system'` first to confirm the flake still evaluates (expected: `x86_64-linux`).
+Then run: `nix flake show 'github:AvengeMedia/DankMaterialShell' --allow-import-from-derivation 2>/dev/null | grep -E 'dank-material-shell|nixosModules|homeModules'`
+Expected: output lists `nixosModules.dank-material-shell` and `homeModules.dank-material-shell` and `homeModules.niri`. If the niri output name differs (e.g. `dankMaterialShell.niri`), note the actual name — Task 3 Step 1 must use whatever this shows.
+
+- [ ] **Step 4: Format and commit**
+
+```bash
+nixfmt-rfc-style flake.nix
+git add flake.nix flake.lock
+git commit -m "chore: add home-manager, niri-flake, and DankMaterialShell flake inputs
+
+Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
+Claude-Session: https://claude.ai/code/session_018Sv2QAunLcLo3tS1YsfLgN"
+```
+
+---
+
+### Task 2: `my.profiles.home-manager` module
+
+**Files:**
+- Create: `modules/environments/home-manager/default.nix`
+- Modify: `modules/environments/default.nix` (add `./home-manager` to `imports`)
+
+**Interfaces:**
+- Consumes: `inputs.home-manager.nixosModules.home-manager` (Task 1).
+- Produces: option `my.profiles.home-manager.enable`. When enabled, sets `home-manager.useGlobalPkgs = true`, `home-manager.useUserPackages = true`, `home-manager.extraSpecialArgs = { inherit inputs self; }`. Also makes the `home-manager.users.<name>` option available (from the unconditional import) so Task 3 can populate `home-manager.users.finn`.
+
+- [ ] **Step 1: Create the module**
+
+Create `modules/environments/home-manager/default.nix`:
+
+```nix
+{
+  config,
+  lib,
+  inputs,
+  self,
+  ...
+}:
+let
+  cfg = config.my.profiles.home-manager;
+in
+{
+  imports = [ self.inputs.home-manager.nixosModules.home-manager ];
+
+  options.my.profiles.home-manager.enable =
+    lib.mkEnableOption "home-manager integration";
+
+  config = lib.mkIf cfg.enable {
+    home-manager.useGlobalPkgs = true;
+    home-manager.useUserPackages = true;
+    home-manager.extraSpecialArgs = { inherit inputs self; };
+  };
+}
+```
+
+- [ ] **Step 2: Register the module**
+
+In `modules/environments/default.nix`, add `./home-manager` to the `imports` list (place it after `./hyprland`):
+
+```nix
+    ./hyprland
+    ./home-manager
+```
+
+- [ ] **Step 3: Verify it evaluates disabled (no behavior change)**
+
+Run: `nix build '.#nixosConfigurations.mibook.config.system.build.toplevel' --dry-run`
+Expected: evaluates and shows a build plan with no errors. Because `my.profiles.home-manager.enable` defaults to false, importing the HM module must not change the build outcome.
+
+- [ ] **Step 4: Verify the option exists and defaults false**
+
+Run: `nix eval '.#nixosConfigurations.mibook.config.my.profiles.home-manager.enable'`
+Expected: `false`
+
+- [ ] **Step 5: Format and commit**
+
+```bash
+nixfmt-rfc-style modules/environments/home-manager/default.nix modules/environments/default.nix
+git add modules/environments/home-manager/default.nix modules/environments/default.nix
+git commit -m "feat(home-manager): add opt-in my.profiles.home-manager module
+
+Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
+Claude-Session: https://claude.ai/code/session_018Sv2QAunLcLo3tS1YsfLgN"
+```
+
+---
+
+### Task 3: `my.profiles.dank` module
+
+**Files:**
+- Create: `modules/environments/dank/default.nix`
+- Modify: `modules/environments/default.nix` (add `./dank` to `imports`)
+
+**Interfaces:**
+- Consumes: `my.profiles.home-manager.enable` (Task 2); `inputs.dank.nixosModules.dank-material-shell`, `inputs.dank.homeModules.dank-material-shell`, `inputs.dank.homeModules.niri`, `inputs.niri.homeModules.niri` (Task 1); `pkgs.unstable.quickshell`.
+- Produces: option `my.profiles.dank.enable`.
+
+- [ ] **Step 1: Create the module**
+
+Create `modules/environments/dank/default.nix`. Use the exact `homeModules`/`nixosModules` output names confirmed in Task 1 Step 3 — the block below assumes `dank-material-shell` and `niri`:
+
+```nix
+{
+  config,
+  lib,
+  pkgs,
+  inputs,
+  self,
+  ...
+}:
+let
+  cfg = config.my.profiles.dank;
+in
+{
+  imports = [ self.inputs.dank.nixosModules.dank-material-shell ];
+
+  options.my.profiles.dank.enable = lib.mkEnableOption "DankMaterialShell on niri";
+
+  config = lib.mkIf cfg.enable {
+    # Dependency: declarative user config comes from home-manager.
+    my.profiles.home-manager.enable = true;
+
+    # System side: niri Wayland session + DMS daemons/packages.
+    programs.niri.enable = true;
+
+    programs.dank-material-shell = {
+      enable = true;
+      systemd.enable = true;
+      quickshell.package = pkgs.unstable.quickshell;
+    };
+
+    # Home side: DMS shell + niri spawn for finn (keybinds come via includes).
+    home-manager.users.finn = {
+      imports = [
+        inputs.niri.homeModules.niri
+        inputs.dank.homeModules.dank-material-shell
+        inputs.dank.homeModules.niri
+      ];
+
+      programs.dank-material-shell = {
+        enable = true;
+        systemd.enable = true;
+        quickshell.package = pkgs.unstable.quickshell;
+        # niri.enableKeybinds intentionally omitted: DMS's niri `includes.enable`
+        # (default true) already brings in the generated binds.kdl plus theming;
+        # setting enableKeybinds too triggers an upstream "not recommended" warning.
+        niri.enableSpawn = true;
+      };
+
+      home.stateVersion = "26.05";
+    };
+  };
+}
+```
+
+- [ ] **Step 2: Register the module**
+
+In `modules/environments/default.nix`, add `./dank` to the `imports` list (after `./home-manager`):
+
+```nix
+    ./home-manager
+    ./dank
+```
+
+- [ ] **Step 3: Verify it evaluates disabled**
+
+Run: `nix eval '.#nixosConfigurations.mibook.config.my.profiles.dank.enable'`
+Expected: `false`
+Run: `nix build '.#nixosConfigurations.mibook.config.system.build.toplevel' --dry-run`
+Expected: evaluates without error (dank disabled → no behavior change yet).
+
+- [ ] **Step 4: Format and commit**
+
+```bash
+nixfmt-rfc-style modules/environments/dank/default.nix modules/environments/default.nix
+git add modules/environments/dank/default.nix modules/environments/default.nix
+git commit -m "feat(dank): add DankMaterialShell (niri) profile
+
+Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
+Claude-Session: https://claude.ai/code/session_018Sv2QAunLcLo3tS1YsfLgN"
+```
+
+---
+
+### Task 4: Enable on mibook and build the full toplevel
+
+**Files:**
+- Modify: `machines/mibook/environments.nix:7-17` (the `my.profiles = { ... }` block)
+
+**Interfaces:**
+- Consumes: `my.profiles.dank.enable` (Task 3).
+
+- [ ] **Step 1: Enable the profile**
+
+In `machines/mibook/environments.nix`, inside the `my.profiles = { ... }` block, add:
+
+```nix
+    dank.enable = true;
+```
+
+- [ ] **Step 2: Build the full toplevel (the real test)**
+
+Run: `nix build '.#nixosConfigurations.mibook.config.system.build.toplevel'`
+Expected: builds successfully. This exercises the DMS package, quickshell from unstable, niri, and the home-manager generation for finn.
+
+If it fails on a **quickshell/Qt6 version mismatch** (see spec risks): drop `quickshell.package = pkgs.unstable.quickshell;` from **both** the system and HM `programs.dank-material-shell` blocks in `modules/environments/dank/default.nix` and rebuild, letting DMS's module pick its own default quickshell. If it fails on an **unknown HM option** (e.g. `niri.enableKeybinds`), run `nix eval '.#nixosConfigurations.mibook.config.home-manager.users.finn.programs.dank-material-shell' --apply builtins.attrNames 2>&1 | head` to list the real option names and adjust. Re-run the build until it passes.
+
+- [ ] **Step 3: Run flake check**
+
+Run: `nix flake check`
+Expected: passes (all nixosConfigurations evaluate). If `nix flake check` is slow or pulls DMS's own checks, `nix build '.#nixosConfigurations.mibook.config.system.build.toplevel'` from Step 2 passing is the authoritative gate.
+
+- [ ] **Step 4: Format and commit**
+
+```bash
+nixfmt-rfc-style machines/mibook/environments.nix
+git add machines/mibook/environments.nix modules/environments/dank/default.nix
+git commit -m "feat(mibook): enable DankMaterialShell (niri) session
+
+Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
+Claude-Session: https://claude.ai/code/session_018Sv2QAunLcLo3tS1YsfLgN"
+```
+
+- [ ] **Step 5: Manual acceptance (human, on hardware)**
+
+Run: `sudo nixos-rebuild test --flake '.#mibook'`
+Then log out, pick the **niri** session at SDDM, log in as finn.
+Expected: DMS bar/shell appears; `Mod+Space` opens the launcher; `Mod+V` opens the clipboard; the KDE session is still selectable and works. Note this step cannot be automated — it requires the physical machine.
+
+---
+
+## Notes for the implementer
+
+- **Order matters:** Task 1 must land first (inputs must resolve before any module can import them). Tasks 2→3→4 are strictly sequential.
+- **Output-name drift is the top risk.** The DMS flake has renamed outputs over time (there are deprecated aliases like `dankMaterialShell.niri`). Task 1 Step 3 pins down the real names against the locked revision; use those, not the names in this plan, if they differ.
+- **No unit-test framework here.** Nix evaluation + a successful `toplevel` build *is* the test. Do not fabricate a test harness.
+- Do not touch `machines/configuration.nix`, `machines/jupiter/*`, or the KDE profile.

docs/superpowers/plans/2026-07-26-jellyfin-hw-transcoding.md

@@ -1,154 +0,0 @@
-# Jellyfin Hardware Transcoding (jupiter) Implementation Plan
-
-> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
-
-**Goal:** Give jupiter's Jellyfin service access to the Intel iGPU's VAAPI render node so Quick Sync hardware transcoding can be enabled, instead of every transcode falling back to CPU.
-
-**Architecture:** One NixOS module change (`modules/environments/jellyfin/default.nix`) grants the `jellyfin` systemd service supplementary access to the `video`/`render` groups and installs `libva-utils` for verification. This is declarative and build-verifiable from the Mac. Enabling Quick Sync inside Jellyfin's own dashboard, and the on-machine verification, is a manual step run by the user on jupiter after deploy — the NixOS module has no option for it and this environment's convention is that the assistant never SSHes into jupiter directly (see `docs/superpowers/specs/2026-07-26-jellyfin-hw-transcoding.md`).
-
-**Tech Stack:** NixOS (flake-parts), nixpkgs `services.jellyfin` module, VAAPI/`intel-media-driver`, `libva-utils`.
-
-## Global Constraints
-
-- No SSH from the assistant into jupiter — all on-machine commands are given to the user to run and paste back.
-- Follow the existing profile pattern in `modules/environments/jellyfin/default.nix` (`config = lib.mkIf cfg.enable { ... }`); don't introduce a new toggle option — hardcode the hardware-acceleration wiring on, per the approved spec.
-- Verify locally via `nix eval` / `nix build` before asking the user to deploy.
-
----
-
-### Task 1: Grant Jellyfin access to the iGPU and verify the build
-
-**Files:**
-- Modify: `modules/environments/jellyfin/default.nix`
-
-**Interfaces:**
-- Produces: `systemd.services.jellyfin.serviceConfig.SupplementaryGroups = [ "video" "render" ];` — verified via `nix eval` in Step 2.
-
-- [ ] **Step 1: Add the device-access config and `libva-utils` package**
-
-Read the current file first (`modules/environments/jellyfin/default.nix`), then edit the `config = lib.mkIf cfg.enable { ... }` block so it reads:
-
-```nix
-  config = lib.mkIf cfg.enable {
-    services.jellyfin = {
-      enable = true;
-      openFirewall = true;
-    };
-
-    environment.systemPackages = [ pkgs.libva-utils ];
-
-    my.homepage.services = [
-      {
-        group = "Media";
-        name = "Jellyfin";
-        description = "Media server";
-        href = "http://${hostName}:${toString port}";
-        icon = "jellyfin.png";
-      }
-    ];
-
-    systemd.services.jellyfin = {
-      after = [ "network-online.target" ];
-      serviceConfig.SupplementaryGroups = [
-        "video"
-        "render"
-      ];
-    };
-  };
-```
-
-Note the two existing `systemd.services.jellyfin` keys (`after`) and the new `serviceConfig.SupplementaryGroups` now live in the same attrset — don't create a second `systemd.services.jellyfin = { ... }` block, it would overwrite the first.
-
-- [ ] **Step 2: Verify the rendered config with `nix eval`**
-
-Run (from the repo root on the Mac):
-
-```bash
-nix eval '.#nixosConfigurations.jupiter.config.systemd.services.jellyfin.serviceConfig.SupplementaryGroups' \
-  --extra-experimental-features 'nix-command flakes'
-```
-
-Expected output: `[ "video" "render" ]`
-
-- [ ] **Step 3: Verify the machine still builds**
-
-Run:
-
-```bash
-nix build '.#nixosConfigurations.jupiter.config.system.build.toplevel' \
-  --extra-experimental-features 'nix-command flakes' --no-link
-```
-
-Expected: build succeeds with no errors (may take a while; watch for any evaluation error mentioning `jellyfin` or `libva-utils`).
-
-- [ ] **Step 4: Format and commit**
-
-```bash
-nixfmt-rfc-style modules/environments/jellyfin/default.nix
-git add modules/environments/jellyfin/default.nix
-git commit -m "feat(jellyfin): grant iGPU access for Quick Sync hardware transcoding"
-```
-
----
-
-### Task 2: Deploy on jupiter and enable Quick Sync (user-executed)
-
-**Files:** none (on-machine deploy + Jellyfin dashboard UI)
-
-**Interfaces:**
-- Consumes: the `SupplementaryGroups` change from Task 1, already merged into the flake.
-
-These steps run **on jupiter**, by the user — paste the output back so we can confirm each one before moving to the next.
-
-- [ ] **Step 1: Deploy**
-
-```bash
-sudo nixos-rebuild switch --flake '.#jupiter'
-```
-
-Expected: switch succeeds, no errors mentioning `jellyfin`.
-
-- [ ] **Step 2: Confirm the service picked up the new groups**
-
-```bash
-systemctl show jellyfin -p SupplementaryGroups
-systemctl status jellyfin --no-pager
-```
-
-Expected: `SupplementaryGroups=video render` (order may vary) and the service is `active (running)`.
-
-- [ ] **Step 3: Confirm VAAPI driver loads**
-
-```bash
-vainfo
-```
-
-Expected: output starts with something like `vainfo: VA-API version: 1.x` and `Driver version: Intel iHD driver`, followed by a list of supported VAProfiles/VAEntrypoints (e.g. `VAProfileH264Main : VAEntrypointVLD`, `VAEntrypointEncSlice`).
-
-If this instead prints a permissions or "no VA display" error, paste it back — that means the group grant isn't reaching the process and Task 1 needs a follow-up fix (e.g. the jellyfin service may be more sandboxed than expected, requiring an explicit `DeviceAllow=char-drm rw` in `serviceConfig` as well).
-
-- [ ] **Step 4: Enable Quick Sync in the Jellyfin dashboard**
-
-In the Jellyfin web UI:
-1. **Dashboard → Playback**.
-2. Hardware acceleration: **Intel QuickSync (QSV)**.
-3. VA-API device: `/dev/dri/renderD128`.
-4. Enable hardware decoding for the codecs your library uses (H264 at minimum).
-5. If the library has HDR content, enable tone-mapping.
-6. Save.
-
-- [ ] **Step 5: Functional check**
-
-Play a file that requires transcoding (or force a lower quality in the client's playback settings to trigger one), then:
-
-```bash
-journalctl -u jellyfin -n 50 --no-pager
-```
-
-Look for a line referencing `qsv` or `vaapi` in the transcode command. Separately, watch CPU usage (`htop`) during playback — it should stay low on the core doing the transcode, rather than pegging at 100%, since the iGPU is now doing the encode/decode work.
-
-## Self-Review Notes
-
-- Spec coverage: NixOS change (Task 1) ✓, manual dashboard step (Task 2 Step 4) ✓, verification via `vainfo`/build (Task 1 Step 2-3, Task 2 Step 3) ✓, functional check (Task 2 Step 5) ✓. Toggle option explicitly excluded per approved spec — not present, correctly.
-- No placeholders — every step has literal commands/code.
-- `SupplementaryGroups` key/value matches exactly between Task 1 (produced) and Task 2 (consumed/checked).

docs/superpowers/specs/2026-07-24-dank-material-shell-design.md

@@ -0,0 +1,234 @@
+# DankMaterialShell (niri) Profile — Design
+
+**Date:** 2026-07-24
+**Branch:** `feat/dank-material-shell`
+**Status:** Approved (brainstorming)
+
+## Summary
+
+Add a `my.profiles.dank` NixOS profile that provides a complete
+[DankMaterialShell](https://danklinux.com) (DMS) desktop running on the
+**niri** Wayland compositor, selectable at the SDDM login screen **alongside**
+the existing KDE session on **mibook** (user `finn`).
+
+DMS's keybind, spawn, and declarative-settings integration is delivered only
+through home-manager modules, so this work also introduces home-manager into the
+flake — as its own opt-in profile (`my.profiles.home-manager`) that the `dank`
+profile enables as a dependency. Everything stays declarative inside the flake;
+there is no separate home-manager entrypoint.
+
+## Background / Research
+
+DMS is a Quickshell-based Wayland desktop **shell** (bar, launcher, control
+center, lock screen, notifications) — not a compositor. Its repository
+(`github:AvengeMedia/DankMaterialShell`) ships a flake with:
+
+- `nixosModules.dank-material-shell` — system side: installs the `dms-shell`
+  package + `quickshell`, a `dms` systemd **user** service, `dgop` (system
+  monitoring), matugen (dynamic theming), and enables polkit /
+  power-profiles-daemon / accounts-daemon / geoclue2. Configured via
+  `programs.dank-material-shell.*`.
+- `homeModules.dank-material-shell` — home side: declarative
+  `~/.config/DankMaterialShell/settings.json`, the `dms` user service, plugin
+  management, and the `programs.quickshell` HM program.
+- `homeModules.niri` — niri-specific integration: generates niri keybinds wired
+  to `dms ipc` (launcher, clipboard, notifications, media/brightness keys, power
+  menu, lock) and `spawn-at-startup` for `dms run`.
+
+`homeModules.niri` builds on **niri-flake**'s home-manager API
+(`programs.niri.settings`, `config.lib.niri.actions`); DMS does **not** bundle
+niri-flake, so it must be added as its own input. quickshell ≥ 0.3.0 is
+recommended and is available in nixos-unstable → use `pkgs.unstable.quickshell`.
+
+### Key repo facts
+
+- This repo is flake-parts based, pins `nixpkgs/nixos-26.05`, and exposes
+  `pkgs.unstable` via an overlay in `machines/configuration.nix`.
+- `inputs` and `self` are already threaded into every NixOS module via
+  `_module.args` (set in `machines/configuration.nix`), so `modules/` files may
+  take `inputs` / `self` as arguments and `imports = [ inputs.<x>... ]`.
+- The repo currently uses **no home-manager**; compositor profiles (e.g.
+  `hyprland`) install packages via `users.users.finn.packages`.
+- mibook currently runs the KDE desktop (`my.profiles.kde-desktop`).
+
+## Scope
+
+- **In:** mibook only; niri+DMS as a session parallel to KDE; home-manager
+  scoped to user `finn`; a reusable `my.profiles.home-manager` module.
+- **Out:** enabling on jupiter (headless server); Dank Greeter as the login
+  manager (SDDM stays); declarative DMS `settings.json` content (DMS is
+  configured through its own GUI at runtime; the HM `settings` option remains
+  available for later use but is left empty); any change to `configuration.nix`.
+
+## Design
+
+### 1. New flake inputs (`flake.nix`)
+
+```nix
+home-manager = {
+  url = "github:nix-community/home-manager";
+  inputs.nixpkgs.follows = "nixpkgs";
+};
+niri.url = "github:sodiboo/niri-flake";
+dank.url = "github:AvengeMedia/DankMaterialShell";
+```
+
+Notes:
+- `dank` tracks nixos-unstable internally (its own `nixpkgs`), which is expected
+  for the DMS package build.
+- `niri-flake` provides both the compositor session (nixosModule) and the HM
+  `programs.niri.settings` API that DMS's niri module extends.
+- `home-manager` follows the repo `nixpkgs` (nixos-26.05).
+
+`machines/configuration.nix` is **not** modified — the existing
+`_module.args.inputs = self.inputs` line already makes these inputs reachable
+from any module.
+
+### 2. Home-manager profile (`modules/environments/home-manager/default.nix`)
+
+A new opt-in `my.profiles.home-manager` profile. Because module `imports` cannot
+be gated on an option value, the home-manager NixOS module is imported
+unconditionally (harmless — it only adds options and does nothing until
+`home-manager.users.*` is populated); only the global settings are guarded by
+`mkIf cfg.enable`:
+
+```nix
+{ config, lib, inputs, self, ... }:
+let
+  cfg = config.my.profiles.home-manager;
+in
+{
+  imports = [ inputs.home-manager.nixosModules.home-manager ];
+
+  options.my.profiles.home-manager.enable =
+    lib.mkEnableOption "home-manager integration";
+
+  config = lib.mkIf cfg.enable {
+    home-manager.useGlobalPkgs = true;      # HM shares the system pkgs (+ unstable overlay)
+    home-manager.useUserPackages = true;
+    home-manager.extraSpecialArgs = { inherit inputs self; };
+  };
+}
+```
+
+Registered by adding `./environments/home-manager` to
+`modules/environments/default.nix`.
+
+> Placement note: the profile lives under `modules/environments/` (where
+> `my.profiles.*` modules live) to match the namespace, even though its function
+> is infrastructural.
+
+### 3. Dank profile (`modules/environments/dank/default.nix`)
+
+Standard profile pattern; enables the home-manager profile as a dependency and
+splits configuration between the system module (session + daemons) and the
+home-manager module (keybinds / spawn / settings):
+
+```nix
+{ config, lib, pkgs, inputs, ... }:
+let
+  cfg = config.my.profiles.dank;
+in
+{
+  imports = [ inputs.dank.nixosModules.dank-material-shell ];
+
+  options.my.profiles.dank.enable = lib.mkEnableOption "DankMaterialShell on niri";
+
+  config = lib.mkIf cfg.enable {
+    # dependency: pull in home-manager integration
+    my.profiles.home-manager.enable = true;
+
+    # --- system side: niri session + DMS daemons/packages ---
+    programs.niri.enable = true;                     # niri-flake nixosModule → Wayland session in SDDM
+
+    programs.dank-material-shell = {
+      enable = true;
+      systemd.enable = true;
+      quickshell.package = pkgs.unstable.quickshell;  # >= 0.3.0 from unstable
+      # enableSystemMonitoring / enableVPN / enableDynamicTheming / enableAudioWavelength
+      # / enableCalendarEvents all default true — left on.
+    };
+
+    # --- home side: DMS + niri keybinds for finn ---
+    home-manager.users.finn = {
+      imports = [
+        inputs.niri.homeModules.niri
+        inputs.dank.homeModules.dank-material-shell
+        inputs.dank.homeModules.niri
+      ];
+
+      programs.dank-material-shell = {
+        enable = true;
+        systemd.enable = true;
+        quickshell.package = pkgs.unstable.quickshell;
+        niri.enableKeybinds = true;    # Mod+Space launcher, Mod+V clipboard, media/brightness, power, lock…
+        niri.enableSpawn = true;       # spawn `dms run` at niri startup
+      };
+
+      home.stateVersion = "26.05";     # match nixpkgs release; required by HM
+    };
+  };
+}
+```
+
+Registered by adding `./environments/dank` to
+`modules/environments/default.nix`.
+
+Open validation point (resolve during implementation, not a blocker):
+- Confirm the exact HM output name for the niri integration
+  (`homeModules.niri` vs `homeModules.dankMaterialShell.niri`) and that
+  `programs.niri.enable` is the correct niri-flake nixosModule option; adjust to
+  match the pinned input revisions.
+- Confirm whether `programs.dank-material-shell.quickshell.package` needs to be
+  set on both the system and HM sides or only one; set consistently.
+
+### 4. Enable on mibook (`machines/mibook/environments.nix`)
+
+Add to the `my.profiles` block:
+
+```nix
+dank.enable = true;
+```
+
+KDE (`kde-desktop.enable = true`) stays; both sessions are offered by SDDM.
+
+### 5. Documentation
+
+No homepage dashboard entry (DMS is not a web service). CLAUDE.md is left
+unchanged unless, after implementation, the home-manager pattern warrants a short
+note — decided at the end, not up front (YAGNI).
+
+## Data / control flow
+
+1. `nixos-rebuild` builds the mibook toplevel; niri-flake registers a `niri`
+   Wayland session, DMS nixosModule installs packages + the `dms` user service
+   template, home-manager renders finn's niri config (with DMS keybinds) and DMS
+   config.
+2. At login, SDDM lists **KDE** and **niri**. Selecting niri starts the
+   compositor; `spawn-at-startup` launches `dms run`, bringing up the DMS shell.
+3. Keybinds invoke `dms ipc …` (launcher, clipboard, notifications, media,
+   brightness, power, lock). DMS is further configured via its own GUI, persisted
+   under `~/.config/DankMaterialShell/`.
+
+## Risks / open questions
+
+- **unstable/stable skew:** the repo pins nixos-26.05 while `dank` and
+  `niri-flake` track nixos-unstable, and quickshell comes from `pkgs.unstable`.
+  Qt6/quickshell version mismatch between the DMS package and the stable base is
+  the most likely failure. Mitigation: validate with a full toplevel build and,
+  if it fails, align quickshell/qt sourcing (e.g. take the DMS package's own
+  quickshell) before switching.
+- **HM output/option names** may differ from the researched revision — pin the
+  inputs first, then read the resolved module options and adjust (see §3 open
+  validation point).
+- **First HM activation** for finn: ensure `home.stateVersion` is set so the
+  build doesn't error.
+
+## Verification
+
+1. `nix flake check` succeeds.
+2. `nix build '.#nixosConfigurations.mibook.config.system.build.toplevel'`
+   succeeds.
+3. `sudo nixos-rebuild test --flake '.#mibook'`, then log into the **niri**
+   session: DMS bar appears, `Mod+Space` opens the launcher, KDE session still
+   works.

docs/superpowers/specs/2026-07-26-jellyfin-hw-transcoding.md

@@ -1,145 +0,0 @@
-# Intel Quick Sync hardware transcoding for Jellyfin on jupiter
-
-## Problem
-
-Jellyfin streams stutter on jupiter whenever a client needs a transcode
-(unsupported codec/container, bitrate cap, or a client that can't
-direct-play). Transcoding currently runs entirely on CPU.
-
-jupiter's Intel iGPU is already usable at the OS level:
-
-- `hardware.graphics.enable = true` with `intel-media-driver` (the `iHD`
-  VAAPI driver) is configured in
-  `machines/jupiter/hardware-configuration.nix:20-27`.
-- The commented-out `i915.force_probe = "9a49"` kernel param there
-  corresponds to a Quick-Sync-capable Intel UHD iGPU, confirming the
-  hardware supports it.
-
-But `modules/environments/jellyfin/default.nix` never grants the
-`jellyfin` systemd service access to `/dev/dri`, so Jellyfin has no path
-to the GPU and silently falls back to software transcoding.
-
-## Goal
-
-Give the Jellyfin service access to the iGPU's VAAPI render node, so
-Quick Sync can be enabled in Jellyfin's own dashboard and transcodes are
-offloaded from the CPU.
-
-## Non-goals
-
-- Remote/external access or reverse-proxy tuning.
-- General CPU/RAM headroom review of jupiter.
-- A toggle option (`my.profiles.jellyfin.hardwareAcceleration.enable`) —
-  jupiter only has the one iGPU, so this is hardcoded on rather than
-  made configurable.
-
-## Design
-
-### NixOS change (declarative)
-
-In `modules/environments/jellyfin/default.nix`, inside the existing
-`config = lib.mkIf cfg.enable { ... }` block, grant the systemd service
-supplementary access to the `video` and `render` groups (the groups that
-own `/dev/dri/card*` and `/dev/dri/renderD*`):
-
-```nix
-systemd.services.jellyfin.serviceConfig.SupplementaryGroups = [
-  "video"
-  "render"
-];
-```
-
-This is additive to the existing `systemd.services.jellyfin.after = [
-"network-online.target" ];` block already in the file — both apply to
-the same service.
-
-Also add `libva-utils` to `environment.systemPackages` (or scoped to
-this module) so `vainfo` is available on jupiter to verify the driver
-loads correctly.
-
-### Manual step (not declarative)
-
-Jellyfin stores its transcoding/hardware-acceleration choice in its own
-internal `encoding.xml`, which the NixOS module does not expose as an
-option. After deploying the Nix change, one-time manual configuration in
-the Jellyfin dashboard is required:
-
-1. **Dashboard → Playback**.
-2. Hardware acceleration: **Intel QuickSync (QSV)**.
-3. VA-API device: `/dev/dri/renderD128`.
-4. Enable hardware decoding for the codecs your library actually uses
-   (H264 at minimum; HEVC/VP9 depending on iGPU generation).
-5. If any HDR content exists in the library, enable tone-mapping — this
-   is one of the more CPU-expensive operations Quick Sync can offload.
-
-## Verification
-
-Build-time (from the Mac, no SSH needed):
-
-```
-nix eval '.#nixosConfigurations.jupiter.config.systemd.services.jellyfin.serviceConfig.SupplementaryGroups' \
-  --extra-experimental-features 'nix-command flakes'
-```
-
-Expect `[ "video" "render" ]`.
-
-On jupiter after `sudo nixos-rebuild switch --flake '.#jupiter'`:
-
-```
-systemctl status jellyfin
-journalctl -u jellyfin -n 50 --no-pager
-vainfo
-```
-
-`vainfo` should list the `iHD` driver and print supported VAEntrypoints
-(VLD decode / encode profiles for H264/HEVC).
-
-Functional check: play a file on a client that forces transcoding (or
-force it manually via Jellyfin's playback quality setting), then in
-Jellyfin's dashboard **Activity/Now Playing** panel confirm the
-transcode reason and check that CPU usage on jupiter (`htop`) stays low
-during playback rather than pegging a core — Quick Sync offload should
-show up as low CPU, some GPU (`intel_gpu_top`) activity instead.
-
-## Open items
-
-- Exact supported codec list depends on the iGPU generation (device ID
-  `9a49`) — confirm via `vainfo` output once run, and enable only the
-  hardware decode paths it actually reports.
-
-## Post-deploy fix: two additional runtime packages required
-
-After the initial deploy (Task 1's `SupplementaryGroups` grant) and
-enabling QSV in the dashboard, HEVC HDR playback hung indefinitely
-(Direct Play worked for some titles; titles that needed a real
-transcode+tonemap never produced output). Root-caused via
-`journalctl -u jellyfin` and the per-session ffmpeg transcode log
-(`find / -xdev -iname '*ffmpeg-transcode*'`) — two separate runtimes
-were missing beyond `intel-media-driver` (which only provides VAAPI):
-
-1. **QSV session creation failed:** `Error creating a MFX session: -9`
-   / `Error initializing an MFX session: -3` on
-   `-init_hw_device qsv=qs@va`. VAAPI and QSV are separate runtimes on
-   Linux — QSV needs the oneVPL/MFX GPU implementation. Fix: added
-   `pkgs.vpl-gpu-rt` ("oneAPI Video Processing Library Intel GPU
-   implementation"; note `onevpl-intel-gpu` is the old, renamed
-   attribute) to `hardware.graphics.extraPackages` in
-   `machines/jupiter/hardware-configuration.nix`.
-
-2. **OpenCL device creation failed:** `Failed to get number of OpenCL
-   platforms: -1001` (`CL_PLATFORM_NOT_FOUND_KHR`) on
-   `-init_hw_device opencl=ocl@va`. The `tonemap_opencl` filter jellyfin
-   uses for HDR→SDR tone-mapping needs a working OpenCL ICD, which
-   nothing installed so far provides. Fix: added
-   `pkgs.intel-compute-runtime` ("Intel Graphics Compute Runtime oneAPI
-   Level Zero and OpenCL, supporting 12th Gen and newer" — matches
-   jupiter's Tiger Lake/Xe iGPU) to the same `extraPackages` list.
-
-Confirmed working end-to-end: HEVC HDR transcode with QSV encode +
-OpenCL tone-map runs at `speed=2.68x` realtime on jupiter's iGPU, and
-plays smoothly on Apple TV (JellyTV app).
-
-Both packages live in `machines/jupiter/hardware-configuration.nix`
-(`hardware.graphics.extraPackages`), alongside `intel-media-driver`,
-rather than in the jellyfin module itself — they're iGPU runtime
-capabilities, not something specific to the jellyfin service.

flake.lock

@@ -1,5 +1,41 @@
 {
   "nodes": {
+    "dank": {
+      "inputs": {
+        "dank-qml-common": "dank-qml-common",
+        "flake-compat": "flake-compat",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1784830217,
+        "narHash": "sha256-6MvMw45RSORjINmFd3Lfz9VX9sH8+xTb5WNZiWIKbDw=",
+        "owner": "AvengeMedia",
+        "repo": "DankMaterialShell",
+        "rev": "8af71036cca800064f3fb22dd201109ade6c5ee9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "AvengeMedia",
+        "repo": "DankMaterialShell",
+        "type": "github"
+      }
+    },
+    "dank-qml-common": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1784647395,
+        "narHash": "sha256-kcLSJC8XBzmWoSBc90Zn81qrNsqWMkwQ1m/zZixOw30=",
+        "owner": "AvengeMedia",
+        "repo": "dank-qml-common",
+        "rev": "1919595f0dde4f5bf5ac0baa1902ff6d070971d5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "AvengeMedia",
+        "repo": "dank-qml-common",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -16,6 +52,22 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1767039857,
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
+        "owner": "NixOS",
+        "repo": "flake-compat",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
@@ -79,12 +131,89 @@
         "type": "github"
       }
     },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1784350909,
+        "narHash": "sha256-ZWyzLbS1yKUTeFJLmdVuWNnHttL333/ldJbEE+KzCrM=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "4ce190229c73d44536caa7072f6308fb2d8feeb3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "release-26.05",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "niri": {
+      "inputs": {
+        "niri-stable": "niri-stable",
+        "niri-unstable": "niri-unstable",
+        "nixpkgs": "nixpkgs_2",
+        "nixpkgs-stable": "nixpkgs-stable",
+        "xwayland-satellite-stable": "xwayland-satellite-stable",
+        "xwayland-satellite-unstable": "xwayland-satellite-unstable"
+      },
+      "locked": {
+        "lastModified": 1784874881,
+        "narHash": "sha256-u4jhSIf/Un0qZB+Cn3hTTaHSI20XeAxYbA5o4faqdJs=",
+        "owner": "sodiboo",
+        "repo": "niri-flake",
+        "rev": "ef7a2a3d719af46b906c22a3ebfb7d65627b2cd2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sodiboo",
+        "repo": "niri-flake",
+        "type": "github"
+      }
+    },
+    "niri-stable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1756556321,
+        "narHash": "sha256-RLD89dfjN0RVO86C/Mot0T7aduCygPGaYbog566F0Qo=",
+        "owner": "YaLTeR",
+        "repo": "niri",
+        "rev": "01be0e65f4eb91a9cd624ac0b76aaeab765c7294",
+        "type": "github"
+      },
+      "original": {
+        "owner": "YaLTeR",
+        "ref": "v25.08",
+        "repo": "niri",
+        "type": "github"
+      }
+    },
+    "niri-unstable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1784570726,
+        "narHash": "sha256-9EMn69JBcFWFgUM7f0VBAX+jBby5b9H3M59U75+5yI4=",
+        "owner": "YaLTeR",
+        "repo": "niri",
+        "rev": "7f26c3ee804fb6ed458ef7fb0e3c794f14e0b3bc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "YaLTeR",
+        "repo": "niri",
+        "type": "github"
+      }
+    },
     "nix": {
       "inputs": {
-        "flake-compat": "flake-compat",
+        "flake-compat": "flake-compat_2",
         "flake-parts": "flake-parts_2",
         "git-hooks-nix": "git-hooks-nix",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_3",
         "nixpkgs-23-11": "nixpkgs-23-11",
         "nixpkgs-regression": "nixpkgs-regression"
       },
@@ -140,7 +269,7 @@
     },
     "nixos-hardware": {
       "inputs": {
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_4"
       },
       "locked": {
         "lastModified": 1784723954,
@@ -158,15 +287,18 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1783148766,
+        "lastModified": 1783224372,
-        "narHash": "sha256-H9+N+GFtsbVC8ZniHliChM7ndizxtqVZs6bnGOLM3WQ=",
+        "narHash": "sha256-8i/87eeoqiGE4yOTjwSA3Eh/ziJRQEmd/unYU+K27sk=",
-        "rev": "a50de1b7d8a586adc18d2395c19de7d6058e6030",
+        "owner": "nixos",
-        "type": "tarball",
+        "repo": "nixpkgs",
-        "url": "https://releases.nixos.org/nixos/26.05/nixos-26.05.4193.a50de1b7d8a5/nixexprs.tar.xz"
+        "rev": "d407951447dcd00442e97087bf374aad70c04cea",
+        "type": "github"
       },
       "original": {
-        "type": "tarball",
+        "owner": "nixos",
-        "url": "https://channels.nixos.org/nixos-26.05/nixexprs.tar.xz"
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs-23-11": {
@@ -216,6 +348,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1782847189,
+        "narHash": "sha256-twXPFqFsrrY5r28Zh7Homgcp2gUMBgQ6WDS98Q/3xFI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b6018f87da91d19d0ab4cf979885689b469cdd41",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1784796856,
@@ -231,6 +379,35 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1784796856,
+        "narHash": "sha256-wWFrV5/Qbm+lyt5x20E/bSbfJiGKMo4RCxZV8cl/WZI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e2587caef70cea85dd97d7daab492899902dbf5d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1783148766,
+        "narHash": "sha256-H9+N+GFtsbVC8ZniHliChM7ndizxtqVZs6bnGOLM3WQ=",
+        "rev": "a50de1b7d8a586adc18d2395c19de7d6058e6030",
+        "type": "tarball",
+        "url": "https://releases.nixos.org/nixos/26.05/nixos-26.05.4193.a50de1b7d8a5/nixexprs.tar.xz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://channels.nixos.org/nixos-26.05/nixexprs.tar.xz"
+      }
+    },
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1767892417,
         "narHash": "sha256-8bW3q88CEg2u4hSP66Vf4lpbLonHz7hqDNBMcCY7E9U=",
@@ -243,7 +420,7 @@
         "url": "https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz"
       }
     },
-    "nixpkgs_3": {
+    "nixpkgs_5": {
       "locked": {
         "lastModified": 1784707089,
         "narHash": "sha256-DUedXhD2Rg8q4Xyd07Sb90eZGy4gg6W+Vl/WbLNwAZo=",
@@ -259,13 +436,49 @@
     },
     "root": {
       "inputs": {
+        "dank": "dank",
         "flake-parts": "flake-parts",
+        "home-manager": "home-manager",
+        "niri": "niri",
         "nix": "nix",
         "nixos-generators": "nixos-generators",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": "nixpkgs_5",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }
+    },
+    "xwayland-satellite-stable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1755491097,
+        "narHash": "sha256-m+9tUfsmBeF2Gn4HWa6vSITZ4Gz1eA1F5Kh62B0N4oE=",
+        "owner": "Supreeeme",
+        "repo": "xwayland-satellite",
+        "rev": "388d291e82ffbc73be18169d39470f340707edaa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Supreeeme",
+        "ref": "v0.7",
+        "repo": "xwayland-satellite",
+        "type": "github"
+      }
+    },
+    "xwayland-satellite-unstable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1784679892,
+        "narHash": "sha256-Mb7jpqnrcYCfNSItIkkHpuR3YxWFxPuIBfcwNKlRBkk=",
+        "owner": "Supreeeme",
+        "repo": "xwayland-satellite",
+        "rev": "8d135d3b2854b30fd01ea6cd6c27e523dd50a839",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Supreeeme",
+        "repo": "xwayland-satellite",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -11,6 +11,12 @@
       url = "github:nix-community/nixos-generators";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    home-manager = {
+      url = "github:nix-community/home-manager/release-26.05";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    niri.url = "github:sodiboo/niri-flake";
+    dank.url = "github:AvengeMedia/DankMaterialShell";
 
   };
 

machines/jupiter/hardware-configuration.nix

@@ -35,8 +35,6 @@
       #vaapiIntel         # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
       libva-vdpau-driver
       libvdpau-va-gl
-      vpl-gpu-rt # oneVPL/MFX runtime, required for QSV (h264_qsv/hevc_qsv) session creation
-      intel-compute-runtime # OpenCL runtime, required for tonemap_opencl (HDR tone-mapping)
     ];
   };
 

machines/mibook/environments.nix

@@ -6,6 +6,7 @@ in
 {
   my.profiles = {
     kde-desktop.enable = true;
+    dank.enable = false;
     zsh.enable = true;
     apps = {
       desktop_apps = true;

modules/environments/dank/default.nix

@@ -0,0 +1,48 @@
+{
+  config,
+  lib,
+  pkgs,
+  inputs,
+  self,
+  ...
+}:
+let
+  cfg = config.my.profiles.dank;
+in
+{
+  imports = [ self.inputs.dank.nixosModules.dank-material-shell ];
+
+  options.my.profiles.dank.enable = lib.mkEnableOption "DankMaterialShell on niri";
+
+  config = lib.mkIf cfg.enable {
+    # Dependency: declarative user config comes from home-manager.
+    my.profiles.home-manager.enable = true;
+
+    # System side: niri Wayland session + DMS daemons/packages.
+    programs.niri.enable = true;
+
+    programs.dank-material-shell = {
+      enable = true;
+      systemd.enable = true;
+      quickshell.package = pkgs.unstable.quickshell;
+    };
+
+    # Home side: DMS shell + niri spawn for finn (keybinds come via includes).
+    home-manager.users.finn = {
+      imports = [
+        inputs.niri.homeModules.niri
+        inputs.dank.homeModules.dank-material-shell
+        inputs.dank.homeModules.niri
+      ];
+
+      programs.dank-material-shell = {
+        enable = true;
+        systemd.enable = true;
+        quickshell.package = pkgs.unstable.quickshell;
+        niri.enableSpawn = true;
+      };
+
+      home.stateVersion = "26.05";
+    };
+  };
+}

modules/environments/default.nix

@@ -8,6 +8,8 @@
     ./development
     ./home-assistant
     ./hyprland
+    ./home-manager
+    ./dank
     ./zsh
     ./paperless
     ./prowlarr

modules/environments/home-manager/default.nix

@@ -0,0 +1,21 @@
+{
+  config,
+  lib,
+  inputs,
+  self,
+  ...
+}:
+let
+  cfg = config.my.profiles.home-manager;
+in
+{
+  imports = [ self.inputs.home-manager.nixosModules.home-manager ];
+
+  options.my.profiles.home-manager.enable = lib.mkEnableOption "home-manager integration";
+
+  config = lib.mkIf cfg.enable {
+    home-manager.useGlobalPkgs = true;
+    home-manager.useUserPackages = true;
+    home-manager.extraSpecialArgs = { inherit inputs self; };
+  };
+}

modules/environments/jellyfin/default.nix

@@ -22,8 +22,6 @@ in
       openFirewall = true;
     };
 
-    environment.systemPackages = [ pkgs.libva-utils ];
-
     my.homepage.services = [
       {
         group = "Media";
@@ -36,10 +34,6 @@ in
 
     systemd.services.jellyfin = {
       after = [ "network-online.target" ];
-      serviceConfig.SupplementaryGroups = [
-        "video"
-        "render"
-      ];
     };
   };
 }

modules/environments/kde-desktop/default.nix

@@ -24,4 +24,4 @@ in
       numix-icon-theme
     ];
   };
-}
+}