Wow, good on you for achieving that. I had a few friends and family on signal, but after they dropped SMS support they all left, now I have no signal contacts anymore.
I'm still incredibly frustrated they did that. I often heard "I'll just text you" in reply to "I'm leaving snap". Having an all-in-one app would've made that so much easier.
I'm still quite excited for matrix as well, but it's nowhere near the polish of Signal ATM and it's not something I'd want to be tech support for 15-ish people on