Has anyone checked this out? It shows your logcat and dmesg on boot. I just installed it on my HTC10 and it is pretty cool when your phone boots up. Something else chainfire has given us that's awesome. He released this in 2014, i can't believe i never seen it.. It was just updated this year November 16, 2018.
https://play.google.com/store/apps/details?id=eu.chainfire.liveboot
https://play.google.com/store/apps/details?id=eu.chainfire.liveboot
