A Deno custom loader for supporting importing other files those are not import-able, for the sake of types.
For parsing HTML, it uses Deno DOM
For parsing CSS, it uses NPM/CSS
For other files those are not supported by ESM, it will just make a TypeScript file that export Uint8Array.

You can check examples/http.ts. Basically it will make a HTTP server so Deno can cache the files and there will be TypeScript types. You can try by running

$ deno run -A examples/http.ts

$ deno run -A --reload examples/client.ts

It is not production ready yet.