@wrw @ryanc @mttaggart @TindrasGrove
I don't know other platforms but on Linux I have no issue if the application uses Secret Service API or KDE Kwallet or GNOME Keyring.
This plus encrypting the disk and you are fine until there is a security flaw in the software involved.
You can clone your disk and an attacker could too, but you can unlock it, the attacker not.