How to install APP Signal on Qubes updated 2023

Good afternoon everyone, I’m new to the system, I come from Debian 12 and I need help on how to install the SIGNAL application on Qubes os. I’ve already tried doing the procedure found in another topic here, but it’s not working:

When I enter the subscription key to download, the following message appears:

curl --proxy -s | gpg --dearmor | sudo tee -a /usr/share/keyrings/signal-desktop-keyring.gpg > /dev/null
gpg: no valid OpenPGP data found.

no valid OpenPGP data found.

Could you help me with this problem please

I’ve just tried and it works for me.
Maybe it’s a problem with network connection.
What’s the output of this command?

curl --proxy
1 Like

I’m new to the system, I came from Debian 11 and I can’t even execute a command in Don0, I believe that’s why. Is there a step-by-step video for inexperienced users? If you have it and can help me I would really appreciate it, thank you very much in advance

I would recommend using Signal as Flatpak installed with --user flag.

I don’t know if there are any video guides, but you can start with reading the docs to understand how to use Qubes OS: