@lit/ssr ?

[neviaumi]

Maybe adopt @lit/ssr would be good ideas.

When i only have 1 page, no JS interaction, no dependency.

It shouldn't rocket sciences and i can enjoy the pre-rendered benefit such as quick load and SEO.

Abaility to fetching data from somewhere ...etc.

So after build, it should only require html and CSS.

Possibly Zero JS

[neviaumi]

https://lit.dev/docs/ssr/server-usage/#handling-renderresults

Also it possibly rendering the elements tree and seem to have
import {collectResult} from '@lit-labs/ssr/lib/render-result.js'; to render web component into HTML ?