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Comment by TonyPeakman | Hacker News Reader

That’s a good point — the ESM build of Vue is solid, actively maintained, and does give you a no-build setup with the full feature set.

dagger.js aims a bit differently: it’s even smaller in scope (no virtual DOM, no reactivity system, no SFCs), and is designed to pair directly with Web Components and plain HTML snippets. The trade-off is fewer features, but also less surface area and almost zero “lock-in” — you can literally view-source and drop it into a page.

So I see them as different tiers on the same spectrum: Vue (ESM) if you want a mature, batteries-included framework without a bundler; Dagger.js if you just want minimal runtime directives and WC interop with almost no moving parts.

Appreciate you sharing the blog link — I’ll check it out. Always happy to see more people pushing the “modern JS without a toolchain” approach.

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> The trade-off is fewer features, but also less surface area and almost zero “lock-in” — you can literally view-source and drop it into a page.

You should be able to drop in code dynamically on any existing website with JS Modules, I show an example of this in one of our release notes to showcase the versatility of JS modules [1], which:

   - Dynamically adds an Import Map with references to Vue, an external lib + Vue component library
   - Dynamically creates and mounts a new Vue Component on the fly
   - Drops in a fully functional and editable Data Grid with API bound forms, API + form validation, etc

Basically you should be able to do most things on a deployed page as can be done in your "no-build" ESM Web App.

I did try building web components with Lit [2], unfortunately WC's encapsulation and shadow dom made it difficult to enable theming and maintain shared global tailwind styles, so ditched it and went back to Vue. Although it's a good option for creating encapsulated components that don't need to share styles.

[1] https://docs.servicestack.net/releases/v6_06#js-modules-quic...

[2] https://lit.dev

That’s a great example — I agree, with JS Modules and import maps you can already do a lot of dynamic composition in the browser, even with heavier frameworks like Vue. dagger.js isn’t trying to claim something impossible with ESM; the goal is more to make the “drop-in” workflow the default, without needing to wire up import maps or component bootstrapping code yourself. It’s about reducing the ceremony, not redefining what modules can do.

On the styling point: totally hear you. Shadow DOM can be a blessing or a curse depending on whether you want strict encapsulation or global theming. dagger.js doesn’t enforce Shadow DOM, so you can share global Tailwind styles when you need them, while still having the option to encapsulate components.

If you do want to explore Web Components without the pain of rolling everything yourself, I’d recommend taking a look at Shoelace — it’s a really nice library of styled Web Components that play well with dagger.js. You get encapsulated, accessible components, but with good customization hooks for theming. Could be a good middle ground between Lit’s strict encapsulation and Vue’s more global styling.

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