I'm looking for an alternative to signal-desktop, with the following conditions:

1. Designed for desktop (GUI or TUI, notification support, runs in background)
2. Runs as main device, not requiring a linked signal app
3. Supports most of the signal features (group chats, disappearing messages, usernames)
4. Preferably integrated with pidgin, thunderbird, or another gui that I'm already using.

Does such an app exist? I have seen many forks of Signal, but most of them also seem to be for android. Previously, I had used signal-cli with an official copy of signal-desktop, but this is not satisfactory for a few reasons, mainly about the "remember to connect on your phone before 30 days" error.