> RSS by all means should be similar: just like ping, cat, sh,

I must say that reading an RSS feed is as simple as this:

wget "myURL" -O - | python3 -c ' import sys import xml.etree.ElementTree as et tree = et.fromstring(sys.stdin.read()) for el in tree.findall("./channel/item"): print(el.find("title").text)'

But the other applications that you mention are not simple applications:

> browsers, email clients, video players, etc. the core features are well defined and an open source project should be the default choice.

[1] _ Sample URL: "https://www.tomshardware.com/feeds/all"