Kumo - Instant Staging environments

You should really detail your security practices and whether or not you need access to source code. This almost seems like something better fit for self-hosting. I'm definitely not going to host proprietary code and database details on your servers, even for a staging environment.

Awesome, I've seen such dynamic environments being problematic for companies. You have a nice painful problem to solve, good start!

Couple things are not clear to me on a landing page:

• there are a lot of '#' links. This is not helpful and discourages clicking anything ('Hey, I bet this one is dead as well' kinda thinking).
• it's obviously not ready since you ask people to join a waiting list. Thus, the testimonial doesn't sound real.
• you say 'Complete isolation from the real world.' and a sentence later 'We want to make it possible for you to build any type of application, regardless of the number of 3rd-party integrations...' This is confusing to me. How can I run integrations if it's completely isolated? I feel like this needs to be clarified.

Nevertheless, it has potential, all the best with next iterations!

Really cool! Your landing page was fine I think, I got the point pretty much immediately :)