chore: GPLv2-only license, docs and source headers

7 files changed, 112 insertions, 0 deletions

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