GrapesJS is the forever OG that proved this whole space could be an embeddable SDK rather than a paywalled SaaS. It also standardized the palette/canvas/inspector layout that every serious visual builder now ships by default — including Templatical. I took direct inspiration from a few other patterns too: the block-as-first-class-citizen model, and the trait system, which maps almost 1:1 to how Templatical's custom blocks expose typed fields into the inspector.
And yeah — agreed on MJML. Building email layouts that work for most clients is notoriously hard. I think the people who built MJML absorbed an enormous amount of pain so the rest of us don't have to.
Huge respect for what you built.
Really happy to see people building great things in this space and pushing it forward. Wishing you and Templatical the best!
Even with LLMs, generating raw HTML emails that render correctly across major email clients is still surprisingly hard, so great choice going with MJML.