@hjortureh @Netlify @contentful Yep. I do exactly that.
https://www.hawksworx.com/blog/isomorphic-rendering-on-the-jam-stack/
This site uses a bespoke SSG which I made myself, but the principle is exactly as you described. A gulp build gets the data from Contentful. Then an SSG builds it. Triggered by webhooks.
My tweets and posts live here on my own domain these days.
You can explore them here and follow me on Mastodon instead of Twitter where I'm not currently active.