chore: GPLv2-only license, docs and source headers

43 files changed, 1081 insertions, 23 deletions

diff --git a/AGENTS.md b/AGENTS.md
index ab4df97..490e769 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,14 +1,55 @@
 # AGENTS.md
 
-Guidance for agents working in this repository.
-
-Read the design (`docs/superpowers/specs/2026-11-09-deck-it-design.md`) and the
-implementation plan (`docs/superpowers/plans/2026-11-09-deck-it.md`) first. The
-plan is the authority for interfaces and test values.
-
-- Python 3.11+, standard library only except `websocket-client` for OBS.
-- Run the suite with `python3 -m unittest discover -s tests`.
-- Each module is `deckit/modules/<name>.py` exporting `make(cfg) -> Module`; the
-  registry discovers files lazily, so a new module is a new file.
-- The server listens only on a Unix socket; `adb reverse` exposes it.
-- UDT's palette is read, never restated.
+Guidance for AI coding agents working in this repository.
+
+## What this is
+
+`deck-it` turns an Android tablet into a second monitor, a stream-deck and an
+always-on control surface for a Slackware Hyprland desktop. The PC serves a web
+page on a Unix socket and exposes it to the tablet with `adb reverse`; `wayvnc`
+streams a headless output to AVNC. Python 3.11+ standard library, plus
+`websocket-client` for obs-websocket. Plain HTML/CSS/JS frontend, bash launcher.
+Keep the server dependency-free apart from that one package.
+
+## How it fits together
+
+- `deckit/server.py` is the stdlib HTTP server: it listens on
+  `$XDG_RUNTIME_DIR/deck-it/http.sock`, serves `static/`, `/theme.css`,
+  `/icons/<name>.svg` and `/api/<module>[/<action>]`.
+- A module is `deckit/modules/<name>.py` exporting `make(cfg) -> Module`; the
+  registry discovers files lazily. `state()` is read, `actions` are
+  allow-listed, and the client sends ids, never commands.
+- The page shell (`static/app.js`) builds tabs from each panel's `tab` property,
+  mounts panels and polls `/api/<module>`.
+- `deckit/theme.py` reads UDT's palette (`~/.config/rofi/udt/palette.rasi`) and
+  `~/.cache/udt/udt-border.lua`; the frontend uses only those CSS variables.
+- Launcher icons follow the icon theme Keystone sets (`gsettings
+  org.gnome.desktop.interface icon-theme`); window icons resolve through the
+  `.desktop` `Icon`/`StartupWMClass` mapping.
+- `deckit/display.py` creates the headless output, centres it under the first
+  monitor for `position = "auto-below"`, and paints it with the first monitor's
+  swaybg image.
+- The launcher (`deck-it`) handles USB and Wi-Fi (`pair`/`wifi`), the tunnels,
+  wayvnc and AVNC. `adb mdns` may be unsupported; `deck-it wifi <ip:port>` takes
+  an explicit address.
+
+## Conventions
+
+- New behaviour goes in a module under `deckit/modules/`, not in the server.
+- Panels keep their scoped wrapper class (`.music`, `.sbb`, `.llm`, `.windows`)
+  because the CSS is scoped to it.
+- Hyprland Lua: a dispatcher must be wrapped in `hl.dispatch(...)` to execute.
+  `hyprctl eval` alone only builds the dispatcher object.
+- No personal data in code, docs, tests or commits; use placeholders.
+
+## Testing
+
+    python3 -m unittest discover -s tests
+
+`node --check` any changed JS file. The real hardware paths (wayvnc, adb, OBS,
+the tablet) are manual.
+
+## Repo facts
+
+- License: GPLv2 only (`LICENSE`, header in each source file).
+- Work directly on master.
diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..0d86339
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,6 @@
+# CLAUDE.md
+
+This file is intentionally thin. AGENTS.md is the single source of truth for
+project guidance, shared across every agent tool. Edit AGENTS.md instead.
+
+@AGENTS.md
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..9efa6fb
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,338 @@
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+This General Public License does not permit incorporating your program into
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diff --git a/README.md b/README.md
index 19705e0..c84bbb2 100644
--- a/README.md
+++ b/README.md
@@ -1,21 +1,66 @@
 # deck-it
 
-A tablet dashboard, stream-deck, and second monitor for a Slackware-current
-Hyprland desktop, themed by
-[unified-desktop-theme](https://git.danix.xyz/unified-desktop-theme/).
+Turns an Android tablet into a second monitor, a stream-deck and an always-on
+control surface for a Slackware Hyprland desktop.
 
-An Android tablet shows an always-on control surface served over `adb reverse`,
-plus a virtual Hyprland monitor streamed with wayvnc and shown in AVNC. The
-surface is a module system: system stats, music, windows, OBS, LLM usage and
-build status plug in independently.
+A web page on the tablet has tabs for system stats, music, windows, OBS and
+LLM/build status. A second headless output is streamed to AVNC as an extra
+monitor. Everything runs on the PC and reaches the tablet through `adb reverse`;
+there is no cloud, account or app-store install.
 
-Status: in development. The design is in
-`docs/superpowers/specs/`, the plan in `docs/superpowers/plans/`.
+## Requirements
+
+**PC**
+- Slackware-current with Hyprland (Lua or classic config)
+- Python 3.11+ (`python3`)
+- `websocket-client` (obs-websocket)
+- `adb`, `wayvnc`, `openssl`
+- `playerctl`, `wpctl` (PipeWire), `wtype`
+- optional: `qrencode` for Wi-Fi pairing
+
+**Tablet**
+- Android with USB debugging or Wireless debugging
+- [AVNC](https://github.com/gujjwal00/avnc) for the extended display
+- a Chromium-based browser for the web app (install it from the menu)
+
+## Install
+
+```sh
+git clone https://git.danix.xyz/deck-it ~/Programming/GIT/deck-it
+cp ~/Programming/GIT/deck-it/config.toml ~/.config/deck-it/config.toml   # optional
+~/Programming/GIT/deck-it/deck-it
+```
+
+The launcher creates the headless output, starts wayvnc and the server, tunnels
+them to the tablet, and opens the dashboard and AVNC. `deck-it stop` tears it
+down.
+
+Over Wi-Fi, pair once and pass the tablet's Wireless debugging address:
+
+```sh
+deck-it pair
+deck-it wifi 192.168.1.50:41234
+```
+
+## Usage
+
+- Tabs: **Dashboard** (draggable/resizable cards), **Windows**, **OBS**. Swipe
+  the content sideways to change tab.
+- `deck-it install` prints the `exec-once` line for hypr-theme's autostart.
+- Configuration lives in `config.toml`: workspaces, launcher icons, OBS
+  websocket, llm-cost-dashboard URL, build VM host, hardware overrides.
+- The OBS tab is a stream-deck: scenes, sources, audio sliders, transitions.
+  Long-press a source to open its properties dialog in OBS.
+- The Windows tab has workspaces, icon launchers, and a per-window `⋮` menu to
+  close it or move it to another desktop.
 
 ## License
 
-Not decided yet. Portions derived from tabdeck are MIT; see `NOTICE` and
-`LICENSE.tabdeck`.
+Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+
+GPLv2 only. See [LICENSE](LICENSE) for the full text. Portions derived from
+tabdeck (MIT) are noted in [LICENSE.tabdeck](LICENSE.tabdeck) and
+[NOTICE](NOTICE).
 
 ## Development Approach
 
diff --git a/deck-it b/deck-it
index 1ce6390..8e0ed21 100755
--- a/deck-it
+++ b/deck-it
@@ -1,4 +1,20 @@
 #!/usr/bin/env bash
+# deck-it - the launcher
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 # Usage: deck-it                start the dashboard + extended display over USB
 #        deck-it stop           tear it all down
 #        deck-it env            print MON/PORT/VNC_PORT for this config
diff --git a/deckit/__init__.py b/deckit/__init__.py
index f5a692a..353b4d7 100644
--- a/deckit/__init__.py
+++ b/deckit/__init__.py
@@ -1 +1,17 @@
+# deck-it - the deck-it package
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """deck-it: a tablet dashboard, stream-deck and second monitor."""
diff --git a/deckit/__main__.py b/deckit/__main__.py
index 735836c..5b6cda8 100644
--- a/deckit/__main__.py
+++ b/deckit/__main__.py
@@ -1,3 +1,19 @@
+# deck-it - the command entry point
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """`python3 -m deckit [setup-display | env]`."""
 
 import sys
diff --git a/deckit/config.py b/deckit/config.py
index 151207b..aac5ad9 100644
--- a/deckit/config.py
+++ b/deckit/config.py
@@ -1,3 +1,19 @@
+# deck-it - configuration loading and validation
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """Configuration loading and validation for deck-it."""
 
 import os
diff --git a/deckit/display.py b/deckit/display.py
index c1a74b1..6a9a58f 100644
--- a/deckit/display.py
+++ b/deckit/display.py
@@ -1,3 +1,19 @@
+# deck-it - the virtual monitor setup
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """The virtual monitor half: a headless Hyprland output sized to the tablet."""
 
 import json
diff --git a/deckit/module.py b/deckit/module.py
index f1a7fa1..9dad62a 100644
--- a/deckit/module.py
+++ b/deckit/module.py
@@ -1,3 +1,19 @@
+# deck-it - the module contract and registry
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """The module contract and the registry that dispatches to modules.
 
 A module is a data source plus an allow-listed set of actions. The client sends
diff --git a/deckit/modules/__init__.py b/deckit/modules/__init__.py
index 76fc9c5..09c6605 100644
--- a/deckit/modules/__init__.py
+++ b/deckit/modules/__init__.py
@@ -1,3 +1,19 @@
+# deck-it - module discovery
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """Module discovery.
 
 Every `deckit/modules/<name>.py` exporting `make(cfg) -> Module` is a module.
diff --git a/deckit/modules/llm.py b/deckit/modules/llm.py
index 1b40a6f..7856603 100644
--- a/deckit/modules/llm.py
+++ b/deckit/modules/llm.py
@@ -1,3 +1,19 @@
+# deck-it - llm module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """Claude Code and opencode usage, relayed from llm-cost-dashboard's API.
 
 Everything here is read-only. The dashboard stays the owner of the data and the
diff --git a/deckit/modules/music.py b/deckit/modules/music.py
index f0baacb..aa30798 100644
--- a/deckit/modules/music.py
+++ b/deckit/modules/music.py
@@ -1,3 +1,19 @@
+# deck-it - music module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """Now playing and volume, via playerctl and wpctl."""
 
 import subprocess
diff --git a/deckit/modules/obs.py b/deckit/modules/obs.py
index 07ec5d9..491f45f 100644
--- a/deckit/modules/obs.py
+++ b/deckit/modules/obs.py
@@ -1,3 +1,19 @@
+# deck-it - obs module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """OBS stream-deck: recording, scenes, audio channels, transitions and sources."""
 
 import json
diff --git a/deckit/modules/sbbuilder.py b/deckit/modules/sbbuilder.py
index 13552a1..cefe2a3 100644
--- a/deckit/modules/sbbuilder.py
+++ b/deckit/modules/sbbuilder.py
@@ -1,3 +1,19 @@
+# deck-it - sbbuilder module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """sb-builder build state, read-only over ssh.
 
 `sbb-remote stats` carries the dashboard: VM load, uptime, memory, disk, package
diff --git a/deckit/modules/stats.py b/deckit/modules/stats.py
index 255efc6..c190ec8 100644
--- a/deckit/modules/stats.py
+++ b/deckit/modules/stats.py
@@ -1,3 +1,19 @@
+# deck-it - stats module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """System stats: CPU, memory, GPU (Intel xe), network, uptime.
 
 The Arc driver exposes temperature and fan through hwmon and no VRAM capacity;
diff --git a/deckit/modules/windows.py b/deckit/modules/windows.py
index 67dbbd2..5457b16 100644
--- a/deckit/modules/windows.py
+++ b/deckit/modules/windows.py
@@ -1,3 +1,19 @@
+# deck-it - windows module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """Hyprland windows, workspaces, and launching config-declared commands."""
 
 import json
diff --git a/deckit/obsclient.py b/deckit/obsclient.py
index 87eefff..bd4d1d9 100644
--- a/deckit/obsclient.py
+++ b/deckit/obsclient.py
@@ -1,3 +1,19 @@
+# deck-it - a minimal obs-websocket v5 client
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """A minimal obs-websocket v5 client.
 
 OBS speaks WebSocket + JSON. On connect it sends Hello; if auth is required we
diff --git a/deckit/server.py b/deckit/server.py
index c6cc7e8..e392041 100644
--- a/deckit/server.py
+++ b/deckit/server.py
@@ -1,3 +1,19 @@
+# deck-it - the HTTP server, auth and module routing
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """The HTTP server: static assets, the theme, and the module API.
 
 It listens only on a Unix socket in a 0700 directory, which `adb reverse`
diff --git a/deckit/theme.py b/deckit/theme.py
index 5603d5b..2ed3d51 100644
--- a/deckit/theme.py
+++ b/deckit/theme.py
@@ -1,3 +1,19 @@
+# deck-it - reads the UDT palette and renders it as CSS
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 """Read UDT's palette output and render it as CSS custom properties.
 
 UDT writes the structural palette to ~/.config/rofi/udt/palette.rasi and the
diff --git a/static/app.js b/static/app.js
index 296166a..b89fbaa 100644
--- a/static/app.js
+++ b/static/app.js
@@ -1,3 +1,19 @@
+// deck-it - the page shell: tabs, cards and polling
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 // The shell: discover modules, sort them into tabs, mount each panel and poll
 // its state. A module is static/modules/<name>.js exporting default {title,
 // tab, interval, mount(el), update(state, el)}. Modules without a tab go into
diff --git a/static/deck.css b/static/deck.css
index 9aaeaec..684d336 100644
--- a/static/deck.css
+++ b/static/deck.css
@@ -1,3 +1,21 @@
+/*
+ * deck-it - the dashboard styles
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
 * { box-sizing: border-box; margin: 0; }
 
 html, body { height: 100%; }
diff --git a/static/index.html b/static/index.html
index 5a4ca3e..b2a3fca 100644
--- a/static/index.html
+++ b/static/index.html
@@ -1,4 +1,22 @@
 <!doctype html>
+<!--
+  deck-it - the dashboard page
+  Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License version 2 as
+  published by the Free Software Foundation.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along
+  with this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+-->
+
 <html lang="en">
 <head>
 <meta charset="utf-8">
diff --git a/static/modules/llm.js b/static/modules/llm.js
index 1465a30..22f8737 100644
--- a/static/modules/llm.js
+++ b/static/modules/llm.js
@@ -1,3 +1,19 @@
+// deck-it - llm panel
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 const num = (v) => (v == null ? null : Number(v));
 const money = (v) => (num(v) == null ? "—" : `$${num(v).toFixed(2)}`);
 const tokens = (n) => {
diff --git a/static/modules/music.js b/static/modules/music.js
index 81cf64e..b78a401 100644
--- a/static/modules/music.js
+++ b/static/modules/music.js
@@ -1,3 +1,19 @@
+// deck-it - music panel
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 function clock(s) {
   s = Math.max(0, Math.floor(s || 0));
   return `${Math.floor(s / 60)}:${String(s % 60).padStart(2, "0")}`;
diff --git a/static/modules/obs.js b/static/modules/obs.js
index ae9e31b..3cc4197 100644
--- a/static/modules/obs.js
+++ b/static/modules/obs.js
@@ -1,3 +1,19 @@
+// deck-it - obs panel
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 // OBS as a stream-deck tab: icon-forward buttons and volume sliders, sized
 // for a finger rather than a mouse.
 
diff --git a/static/modules/sbbuilder.js b/static/modules/sbbuilder.js
index 751ffdd..9e49d90 100644
--- a/static/modules/sbbuilder.js
+++ b/static/modules/sbbuilder.js
@@ -1,3 +1,19 @@
+// deck-it - sbbuilder panel
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 const gib = (b) => (b == null ? "?" : (b / 1073741824).toFixed(1));
 const pct = (n) => (n == null ? "?" : `${Math.round(n)}%`);
 const ago = (ts) => {
diff --git a/static/modules/stats.js b/static/modules/stats.js
index 16dffd2..c76e889 100644
--- a/static/modules/stats.js
+++ b/static/modules/stats.js
@@ -1,3 +1,19 @@
+// deck-it - stats panel
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 const gib = (kb) => (kb / 1048576).toFixed(1);
 const bytes = (b) => (b == null ? "?" : (b / 1073741824).toFixed(1));
 const rate = (b) => (b >= 1048576 ? `${(b / 1048576).toFixed(1)}M` : `${Math.round(b / 1024)}k`);
diff --git a/static/modules/windows.js b/static/modules/windows.js
index c981846..d0a5a6c 100644
--- a/static/modules/windows.js
+++ b/static/modules/windows.js
@@ -1,3 +1,19 @@
+// deck-it - windows panel
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 async function post(action, body = {}) {
   try {
     await fetch(`/api/windows/${action}`, {
diff --git a/tests/test_config.py b/tests/test_config.py
index ff56325..879917c 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -1,3 +1,19 @@
+# deck-it - tests for config
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 # tests/test_config.py
 import sys
 from pathlib import Path
diff --git a/tests/test_display.py b/tests/test_display.py
index 7f90fe4..3a97427 100644
--- a/tests/test_display.py
+++ b/tests/test_display.py
@@ -1,3 +1,19 @@
+# deck-it - tests for display
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 import tempfile
 from pathlib import Path
diff --git a/tests/test_frontend.py b/tests/test_frontend.py
index 0889c5b..635b57a 100644
--- a/tests/test_frontend.py
+++ b/tests/test_frontend.py
@@ -1,3 +1,19 @@
+# deck-it - tests for frontend
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_launcher.py b/tests/test_launcher.py
index bfcbdec..0c16b46 100644
--- a/tests/test_launcher.py
+++ b/tests/test_launcher.py
@@ -1,3 +1,19 @@
+# deck-it - tests for launcher
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import subprocess
 import unittest
 from pathlib import Path
diff --git a/tests/test_llm.py b/tests/test_llm.py
index d64aef1..48e49fe 100644
--- a/tests/test_llm.py
+++ b/tests/test_llm.py
@@ -1,3 +1,19 @@
+# deck-it - tests for llm
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_module.py b/tests/test_module.py
index ccfdd74..50cffd5 100644
--- a/tests/test_module.py
+++ b/tests/test_module.py
@@ -1,3 +1,19 @@
+# deck-it - tests for module
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_music.py b/tests/test_music.py
index e073e59..ccf0539 100644
--- a/tests/test_music.py
+++ b/tests/test_music.py
@@ -1,3 +1,19 @@
+# deck-it - tests for music
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_obs.py b/tests/test_obs.py
index ecb7cc0..48a0274 100644
--- a/tests/test_obs.py
+++ b/tests/test_obs.py
@@ -1,3 +1,19 @@
+# deck-it - tests for obs
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_obsclient.py b/tests/test_obsclient.py
index fe97d35..8516f03 100644
--- a/tests/test_obsclient.py
+++ b/tests/test_obsclient.py
@@ -1,3 +1,19 @@
+# deck-it - tests for obsclient
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_sbbuilder.py b/tests/test_sbbuilder.py
index f71e0f9..4d5cc29 100644
--- a/tests/test_sbbuilder.py
+++ b/tests/test_sbbuilder.py
@@ -1,3 +1,19 @@
+# deck-it - tests for sbbuilder
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_server.py b/tests/test_server.py
index 1244f25..a8fdf0d 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -1,3 +1,19 @@
+# deck-it - tests for server
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_stats.py b/tests/test_stats.py
index 81acdba..1a28ae8 100644
--- a/tests/test_stats.py
+++ b/tests/test_stats.py
@@ -1,3 +1,19 @@
+# deck-it - tests for stats
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_theme.py b/tests/test_theme.py
index 4b8b2de..c1fe1de 100644
--- a/tests/test_theme.py
+++ b/tests/test_theme.py
@@ -1,3 +1,19 @@
+# deck-it - tests for theme
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path
 
diff --git a/tests/test_windows.py b/tests/test_windows.py
index f8e4c3d..e52e23d 100644
--- a/tests/test_windows.py
+++ b/tests/test_windows.py
@@ -1,3 +1,19 @@
+# deck-it - tests for windows
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
 import sys
 from pathlib import Path