Cosmic control center

COSMIC gives you a separate panel button for Wi-Fi, one for Bluetooth, one for sound, one for battery. I wanted the one-button-grid-of-tiles thing instead — open it, tap what you need, drill in if you need more. So I built one.

What it does

1. One popup, tiles for Wi-Fi, Bluetooth, VPN, battery and power profile, DNS profile, volume, brightness, microphone, keyboard backlight, Do Not Disturb, keep-awake, dark mode, tiling, media and Game Mode.
2. Free placement: you drag tiles on a grid and nothing re-flows. A gap you leave is a gap you keep, and the same control can appear more than once at more than one size.
3. Four tile shapes (half, small, tall, wide) on a four-column grid.
4. Your own tiles: any command becomes a tile in a few lines of TOML — a screenshot, a script, lock the session. confirm = true puts a confirmation page in front of it (that's what Log out / Restart / Power off use).
5. Follows your system theme rather than imposing one: accent colour and light/dark are yours, plus three tile finishes… solid, frosted, outline.
6. Optional panel badges for low battery and for Wi-Fi dropping.

Nothing needs root, and that shaped some choices. DNS switching goes through NetworkManager rather than systemd-resolved, because the resolved route is auth_admin_keep in polkit, it'd demand an admin password on every change. NetworkManager grants settings.modify.own outright.

Missing hardware or a stopped daemon just means that tile isn't there; it never takes the applet down. A –check flag probes every backend and prints what it found.

Rust and libcosmic, MIT/Apache-2.0.

https://github.com/jjnuthuagen/cosmic-control-center-applet

Build:
git clone https://github.com/jjnuthuagen/cosmic-control-center-applet

cd cosmic-control-center-applet

just install

Then add it in Settings → Desktop → Panel → Configure applets.

It's pre-release, I use it daily, but the config format and defaults may still move before a tagged release. Not affiliated with System76. Issues, PRs and translations welcome. Mostly I'd like to know which tile you went looking for and didn't find.