It's true yet it's going to be free as in "build it for yourself and maintain it all your life". I tend to forget how I've built some tools I'm using and I sometimes spend hours re-understanding what I've done.

Regarding the price, services like feedly - disclaimer: I've been a paying subscriber in the past - cost $45 per year, and it's not been clear to me what value it was providing me (except some integrations with 3rd party tools maybe).

Anyways, I would certainly love to see an integration with RSS readers like the one mentioned above (which would also mark as read all the posts I received in a digest).