As a frontend dev working my way to the backend, I would probably say a stack of React/Vue, Typescript, and SASS. These are industry standards (or at least, as standard as you can get with such a fractured ecosystem). And/or: learning the ins and outs of an ecommerce platform for theme development, like Shopify or BigCommerce. In terms of frameworks, I prefer Vue because it’s a little higher level than React and translated well from vanilla JS.

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