When I visit the root domain I shouldn't be greeted with a marketing splash page, you need interesting content in the user's face right away, entice their curiosity and drive the user to explore the site... even as a fellow developer, my first instinct is to abandon the page as soon as I'm greeted with the cliche startup marketing page. Consider the user experience when I visit reddit.com or news.ycombinator.com or any other link aggregation competitor. What you have now is a tech demo, not a platform. Sorry if that's a little harsh, but I mean well! Good luck!
But I’m currently working on being a little more diplomatic, and too often I regret throwing in low-signal “this is a tech demo” type summaries next to my substantial remarks.
I hope this comes off as “fellow user working on this” and not a person in a glass house with rocks.
This approach acknowledges what the person is trying to accomplish, and lays out the obstacles before arriving at the conclusion, which then feels more natural. The recipient is able to follow your thinking and hopefully "arrive" at the conclusion along with you. When you start with the conclusion, you risk having a jarring moment where you start with something unexpected, and that can generate friction.