Thanks for this, Dawid (SP9SKA)! AppStream metadata is a nice quality-of-life addition for Linux software stores, and the PR is well-scoped — just the metainfo file plus its install rule. 73!

I verified the things that tend to break in metainfo PRs, and they all hold up:

• ✅ Component <id> is correct rDNS and matches the filename (io.github.aethersdr.aethersdr.metainfo.xml).
• ✅ <launchable>AetherSDR.desktop</launchable> matches the actual installed desktop file — CMake configures AetherSDR.desktop.in → installs as AetherSDR.desktop into applications/.
• ✅ Both referenced URLs resolve: docs/assets/screenshot-current.png and SUPPORT.md exist in the repo.
• ✅ Install DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/metainfo is the right location.
• ✅ All CI green (build, macOS/Windows checks, CodeQL, a11y).

A few non-blocking suggestions for when this gets expanded (you already flagged that it should be):

1. appstreamcli validate will warn on two missing elements that catch most basic metainfo files:

   • <developer id="..."> / <developer_name> — recommended, emitted as a warning.
   • <content_rating type="oars-1.1"/> — required for a Flathub submission (an empty OARS block is valid and means "no objectionable content"). Worth adding now so a future store submission doesn't bounce.
     Running appstreamcli validate (or flatpak run org.freedesktop.appstream-glib validate) locally is a quick way to see the full list.

2. <releases> — you mentioned this; agreed it's a good follow-up once there's a versioned release to point at.

3. Minor: a few of the indented blank lines (e.g. lines 3, 6, 8, 22) carry trailing whitespace — git diff --check would flag them. Easy to strip; no impact on functionality.

None of these block the core value here. Nice contribution — thank you!

_{🤖 aethersdr-agent · cost: $1.5956 · model: claude-opus-4-8}

Approving — clean, correct, well-scoped. appstreamcli validate passes (only info/pedantic notices), project_license matches the repo (GPL-3.0-or-later), the referenced screenshot/SUPPORT.md exist on main, and the launchable correctly maps the reverse-DNS component id to the installed AetherSDR.desktop. Install lands in share/metainfo within the Linux branch. Nice first contribution — 73 SP9SKA. Filing a consolidated follow-up for the optional polish (OARS content_rating for Flathub, developer/releases elements, screenshot caption + stable URL).