This is a COSMIC applet for Tailscale. It has SSH and Allow Routes enable/disable and Tail Drop functionality.
You must first have Tailscale installed and then run:
sudo tailscale set --operator=$USER
This makes it where the applet doesn't need sudo to do its job.
Add the Copr repo:
sudo dnf copr enable bhh32/gui-scale-applet
sudo dnf update --refresh
sudo dnf install -y gui-scale-applet
Unfortunately, I don't know anything like Copr for these distros, so you can download the deb package from the releases section of this repo.
For any other distros (except atomic/immutable distros) you can run:
git clone https://github.com/cosmic-utils/gui-scale-applet.git
cd gui-scale-applet
sudo just install