I don't think a Swiss army knife approach is a good idea for security software to begin with. It's a good way to generate cruft and lock yourself into questiona

I don't think a Swiss army knife approach is a good idea for security software to begin with. It's a good way to generate cruft and lock yourself into questionable design decisions due to Hyrum's Law. It's not great for auditability, either. FFmpeg is a practically an entire non-linear video editor in a CLI tool. That is indeed a lot of complexity, but the stakes are low -- if you screw up an FFmpeg command, you've lost some encoding time, not your entire password database. (I get the impression a lot of FFmpeg's functionality wouldn't serialize well, either, but I'm far from an expert on that.) Nobody on Earth ever has or ever will like the Windows registry. No comment on Firefox.