A bit off-topic, but your landing page is a blatant ripoff of Stripe. Even a bunch of the colors are the same. It is one thing to take inspiration, but this is a complete turnoff.
I don't think web developers will elect a newborn CMS, trust that it doesn't fail for the 5 or more years, if you don't convince them your CMS and the company behind it is future proof. And on that matter, your landing page and your documentation matter more than everything else. Invest time and money in it.