Installing on Debian or Ubuntu

This assumes a modern system, I'm using Pop OS 22.04 LTS. The "modern" component is here a new style of apt repo config, handling the repo pubkeys a bit differently and defining the repo with a new file format.

We'll use the official guide as a basis for it: https://support.1password.com/install-linux/#debian-or-ubuntu

1. Become root

2. Fetch the repo pubkey

   curl -sS https://downloads.1password.com/linux/keys/1password.asc | gpg --dearmor --output /etc/apt/trusted.gpg.d/1password-archive-keyring.gpg

   This places it in a standalone file rather than importing it into a GPG keyring.

3. Define the apt repo for 1Password

   cat <<EOF > /etc/apt/sources.list.d/1password.sources
   X-Repolib-Name: 1Password
   Enabled: yes
   Types: deb
   URIs: https://downloads.1password.com/linux/debian/amd64/
   Suites: stable
   Architectures: amd64
   Components: main
   Signed-By: /etc/apt/trusted.gpg.d/1password-archive-keyring.gpg
   X-Repolib-ID: 1password
   EOF

4. Install it now

   apt update && apt install 1password

5. Neuter the old-style repo definition, because the package creates that and it'll conflict with the new-style definition

   mv /etc/apt/sources.list.d/1password.list /etc/apt/sources.list.d/1password.list.disabled

That's it, go sign into the app now and be happy.