Device-wise, have you considered separating your project and personal computer? You could coreboot a small light Chromebook as a personal, ultraportable device, and get a hefty laptop or even a desktop for the hard stuff.
Chatwise, there’s Matrix, XMPP and SimpleX at least. And Briar and Session. But Signal with its phone number registration is the easiest for others to jump to.
And yes, it’s a constant balancing act between privacy and convenience… and the IA of the security triad, and open source principles. Just like with most things, there’s no perfect solution, you just learn to live with the least bad ones.







According to Wikipedia, the planetary boundaries -concept has been around since 2009, with some renaming and one variable change (“chemical pollution” to “novel entities”. The original Nature (feature) paper that I dug up doesn’t describe the methodology, but that it hasn’t faced major criticism so far would suggest it’s pretty valid for the kind of tool that it is.