fetch environment variable only once
fetch environment variable only once

gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed,gengstrand/clojure-news-feed