Open source alternatives to popular SaaS products
Some time ago there was a tweet making the rounds with a joke along the lines of:<p>"Congrats on your startup's Series A. Now you have enough runway to pay for 6 more months of<p><pre><code>  - Jira
  - Github
  - Slack
  - Google Office
  - Google Cloud/AWS
  - LaunchDarkly
  - Contentful
  - Tableau
  - Zendesk
  - Salesforce
  - ...</code></pre>
"<p>I started to wonder if there is a market for a startup that simply takes all of the best-in-class open source alternatives and hosts the <i>whole package</i> that is commonly needed by companies. Would anyone here use something like that, and why don't smaller hosting providers invest in something like this? You see a lot of them offering basic Webmail/Calendar, but couldn't they go beyond that and use that as a possible revenue stream to compete with the big cloud providers?