[inopinatus]

Same advice as when using Tailwind CSS, or anything of this sort: refactor your application-specific front-end parts at the point of generation, into purposefully named units. For Rails, that means shifting your boilerplate into helpers, partials, and partial layouts. If you're ready for a sharper leading edge, look at ViewComponent.

Once the boundaries of your server-side parts for something are congruent to the client-side parts, you have reached the nirvana state of wondering, "can I extract & package these into a library and share it?".

This is general advice for all development but particularly and specifically true for Rails devs.