Please don't forget that you can self-host it, so you can own your data. But yes, the administration burden "killed it" for me, too, or at least the enthusiasm to make further edits, although it is a really promising app. I can only imagine taking care of such complex task as your main hobby when you're obsessive to take digital notes of everything. It's not been a year since I've spent a couple of days creating profiles, taking notes of events, conversations, etc, so it might be helpful in a couple of years when I can't remember any of these notes. However, as a self-hosed app, it might not survive that long and I could shut it down to give its resources to something else. Still, a great project, I hope it finds its target audience.
Tab management is what keeping me from switching to FF on Android. The option to use extensions and to customize the browser to the desktop level is amazing though. I hope they will look into tabs' UX later when more people are going to use it.
And you can also redirect all port 53 traffic to PiHole on the gateway and let only PiHole query DNS to circumvent clients that use hardcoded IP addresses (e.g. 8.8.8.8 by default)