… and I can’t even continue the chat from my phone.
For the most part, I don’t care about App Size. Storage is cheap. What I miss with the Signal Desktop App is the option to save everything in an encrypted container.
Wouldn’t having full disk encryption achieve most of the benefits of that? In case of someone having access to your unlocked machine what is stopping them from launching the app and looking though it?
Yes, full disk encryption helps against intruders with device access, but not against the files being indexed by other application. My phone is encrypted, but I still use a signal client that is encrypted again.
Am encrypted container doesn’t help if the directory is mounted and accessible or if the key is in plaintext. Also doesn’t help if the process isn’t isolated. You need a bunch of extra measures like using the OS keystore set to only allow the correct program to retrieve the key, keeping secrets only in process memory, etc.
Tldr it’s a lot of work to do it right. If you do it the simple way like throwing it all in SQLite with encryption active you still leak metadata.
Hm, but wouldn’t such an application be malicious by default? Having protection against attackers on your device seems of out scope for a messaging application, at that point I would consider something like Tails. Though this may be a rare case when moving to an appimage could help matters.