Just noticed @evan's book on #ActivityPub is walled-garden digital only... That seems... odd? counter-intuitive? I mean, the fediverse is quite literally built on the opposite approach, no? Well, let's say I'd appreciate if enough people reached out to #oreilly (WTF, they don't even have an account? And @timoreilly has a *single* post?) for them to realize that a print run would be welcome :-) I for one don't own a kindle and I don't run closed-source apps either.