4 ms·They aren't open source, but people run lots of open source software on them.by sciurus 11y agoThey aren't open source, but people run lots of open source software on them.lazyant 11y agoI think I'm not smart enough to get it; lots of servers run on Linux so how's that different?sciurus 11y agoYou don't say "I want to run linux, I'll pay Heroku to do it for me." You say, for example, "I want to run Wordpress, I'll pay Heroku to do it for me."