Anyone ever did something like this for Facebook?
I know it'd have to be subjective per user (security ACLs ⇒ different accounts seeing differing subsets of other accounts' posts); but I'd be fine with just getting my own account's subjective view, by logging into such a service using Facebook OAuth (or, if that isn't enough, then I'd be fine with handing over my Facebook creds themselves, ala XAuth, provided the service is a FOSS one I'm running a copy of myself in e.g. an ownCloud instance.)
I also know that it'd likely require heavyweight scraping using e.g. Puppeteer, to fool Facebook into thinking it's real traffic. But that's not really that much of an impediment, as long as you don't need to scale it to more than a dozen-or-so scrapes per second. (Which you'd automatically be safe from if it was a host-it-yourself solution, since there'd only be one concurrent user of your instance.)
Anyone done this?