The instance social.masto.host is indirectly funded by LineageOS + F-Droid.
Earlier, I was replacing my phone every 2 years with a new version of the same series. But last year, when my phone was ready for replacement (too slow, no Android updates), I flashed LineageOS + F-Droid on it instead.
I saved € 187.5 by not buying a new phone. This instance costs € 5 per month.
P.S. I know the exact cost because I bought one for a family member.
@flutergork@njoseph provided everything goes well, it is relatively easy. You need to know how to install some Android development packages (I don't know about your background) and little else. If there's some technical difficulty in the process, it may be tedious to find a solution.
@flutergork You're better off with a pre-LOS CyanogenMod build of Android 6 (cm13.1) since there's no XPrivacy or a lot of other security and privacy-related Xposed modules for Android 7+ @danipozo@njoseph