Right now, I am dogfooding this on my own website, ewen.works.
<iframe src="https://ewen.works" style="width: 100%; height: 500px; border: none;"></iframe>
It's also used by net7, to keep the projects page up-to-date:
<iframe src="https://net7.dev/realisation.html" style="width: 100%; height: 500px"></iframe>