Embed snippets from source code on GitHub using highlight.js and web components. All client side, all free and open source.

Importing

<script type='module' src="https://nrktkt.github.io/sauce/sauce.js"></script>

<script type='module' src="https://cdn.jsdelivr.net/gh/nrktkt/sauce@11.1.0/sauce.js">

If you're reading this, click here

</script>

Embedding a file

<sauce-code repo='nrktkt/sauce' file='example.html' lines='12:15'

Overriding the language detection

<sauce-code repo='nrktkt/sauce' file='example.html' lines='17:21'

Embedding a snippet from a file

<sauce-code repo='nrktkt/sauce' file='example.html' lines='23:27'

Changing the theme

You can find a list of themes here. The theme name is between the last / and the .min.css.
Previews of themes are here.

<sauce-code lang='html' repo='nrktkt/sauce' file='example.html' theme='monokai-sublime' lines='29:33'

Other goodies

The source file link after the snippet links directly to the specified lines in the file