I'm assuming you have Tails, and know the basics of it.

This script use only open source stuff!! View Script sc

Make sure to always keep Tails updated!!

First ensure you enable an admin password before you start Tails Press the + Under additional settings, and select admin password

Press your home key (Windows or whatever) and in the application search bar type for Persistent Persistent Storage and open up "Persistent Storage"

Enable Persistent folders and Dotfiles if you don't already

Press your home key (Windows probably) and in the application search bar type for Terminal and open up "Terminal" (The black one)

If you haven't already, open this page on Tails

Copy this

curl -sSL https://raw.githubusercontent.com/privacyjam/Install-Signal-on-Tails-OS/refs/heads/main/install-signal-tails.sh -o ~/Persistent/install-signal-tails.sh && chmod +x ~/Persistent/install-signal-tails.sh && ~/Persistent/install-signal-tails.sh

Right click in terminal and click paste

It will start the install process. When it prompts you for your password, enter it, It will first install flatpak and all the files.

VERY IMPORTANT STUFF

When it is done installing it will prompt you with this, you MUST click 'install every time, or flatpak will not be reinstalled every boot, therefor, Signal will not work.

Now, it will ask you to reboot, after you reboot follow the instructions to run it again You do not have to set an admin password from now on

You will see it says 'Installing additional software', this is normal, you can continue on these steps without waiting for it to finish

After you reboot, Open the persistent folder where the script is saved, right click, and do open 'terminal here'

Type and Enter this

./install-signal-tails.sh

It will now download Signal, this will take a long time.

When it is done search for Signal in your start menu, and open it

You will see this, yes it is spooky, but, as everything is stored on your encrypted persistent storage, this isn't an issue on Tails, You can click yes

You will see this, also normal

And now, its done!!

Just link your devices, and your off!!! Next time you start Tails, you do NOT need to set an admin pass

Uninstall

To uninstall, again set an admin password

Press your home key (Windows) and search Terminal and open the black one

Copy this code

bash <(curl -sSL https://raw.githubusercontent.com/privacyjam/Install-Signal-on-Tails-OS/main/uninstall-signal-tails.sh)

Right click in terminal, paste, then enter

It will ask you for your admin pass a time or 2, enter it

THIS IS VERY IMPORTANT, when you see this prompt, click remove, or else flatpak will keep installing

If you do not click remove, next reboot run sudo apt remove flatpak