"C. There's also some Objective-C for macOS UI."
> Second, it's not open source, and I'm not sure I'm comfortable trusting such an app with my login credentials.
"eul doesn't ask for your passwords and doesn't store them anywhere. Authentication is performed in a browser directly on the messenger's website."
> What language is eul written in?
> C. There's also some Objective-C for macOS UI.
I see a lot of companies drawing that conclusion from such premise (and you're using C, which really decreases the odds that my data is really safe).
Using that sentence on your main page makes it look shady. Specially if you're not a security company.
IMHO, if you remove "Your data is safe" it will look much more professional.
For now you can run it from Terminal.
It's only ~100 KB(!)
It will be out of alpha this month.
https://eul.im