Can I use SimpleX on my 15-year-old Macbook Air with bare-console Alpine Linux? Because I can use SIP+ZRTP and XMPP/OMEMO clients there. And they provide thr same level of security while not tying us to modern hardware. Can I even use simplex on an old Android 4.4, to start with?
You could do that, or you could upgrade if privacy and security is important to you.
More consumption is never a viable answer. Privacy and security is important to me. But it can be achieved without the elevated NIH syndrome. Even without Tox (although why not?). Just adopt XMPP+OTR and SIP+ZRTP. Plenty of clients and servers out there. Proven track record. Works everywhere. Gonna do some Linphone-to-Linphone test (Arch Linux to Android) to see if ZRTP is still properly supported on both.