Congratulations! This is exciting stuff. I enjoyed reading Smashing Mag's writeup – their new site feels fast, and seeing their integrations with GoCommerce and Algolia makes static hosting much more compelling.
Do you have plans to extend this to a “batteries included” platform? At the moment it's one piece of a puzzle; users must still choose and configure their build and deployment pipeline, which puts it out of reach for less technical users.
To make static site hosting appealing to a wider audience it feels like a click-and-go platform with themes/plugins may be a good direction to follow. I have used https://www.siteleaf.com/ in the past and been impressed with the workflow. I'd love to help contribute to an open version that appealed to a wider non-technical audience.