ofrnxmr here from the matrix. My main interest is mining and hosting nodes on low powered devices (tv boxes, tablets, old android phones..).
I've been working on CryptoGrampy's termux node over the past 7 months and plan to continue to do so.
i usually use my phone for everything, code etc, as my pc is ~2010 era and relatively useless. Recently the gitian build of monero binaries which took 17 hours (android betas for termux node takes just over an hour).
A newer pc does these builds in minutes.. Trying to update and build shruum/monerujo was a slow and painful process as well. I also try to test and find issues in software.
The goal is to increase productivity / reduce wasted time.