gst-plugins-good is LGPL-2.1-or-later, and every Lightning package that
bundles GStreamer carries binaries from it — jpeg, rtp, rtpmanager,
autodetect, level, vpx and the platform audio sinks among them.

Until now none of those packages carried its licence text. Not an oversight
that could be fixed by copying: the upstream GStreamer MinGW SDK the Windows
builder image is made from does not ship it. Extracted once and listed, that
SDK carries 88 licence directories — gst-plugins-bad-1.0, gst-plugins-base-1.0,
gst-plugins-rs, gst-rtsp-server-1.0, gstreamer-1.0 — and nothing matching
"good". The same gap exists in the AppImage, which copies plugins out of the
Debian host's /usr/lib/x86_64-linux-gnu/gstreamer-1.0 and stages no licence
text at all, and therefore in the snap, which repacks the AppImage.

So the text is vendored HERE, in this repository, and staged from here by
every format that bundles those plugins. Nothing has to be fetched at build
time and no builder image has to be rebuilt.

COPYING in this directory is the canonical GNU Lesser General Public License
version 2.1 verbatim, which is what gst-plugins-good's own COPYING contains.
Taken from /usr/share/common-licenses/LGPL-2.1 on Debian 13, 501 lines,
md5 4bf661c1e3793e55c8d1051bc5e0ae21.

WHAT IS NOT SETTLED HERE, and it is the maintainer's call, not this file's:
whether Lightning should also publish a written offer for the corresponding
source of those plugins, and where. LGPL-2.1 section 6 gives several ways to
satisfy that, and which one fits a desktop download is a decision about the
project, not about packaging. This directory closes the part that has one
correct answer — the licence text must travel with the binaries — and leaves
the part that does not.
