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Like the recently discussed Lightpanda?

Show HN: Lightpanda, an open-source headless browser in Zig | 318 points | 11 days ago | 137 comments | https://news.ycombinator.com/item?id=42817439

Yes, argentic workflows are one of our use cases for Lightpanda.

We skip the graphical rendering of the web page for instant startup, fast execution and low resources usage.

Can skipping rendering affect website behavior? What happens when JS tries to get layout/color information? How often does this break a website?

They skip rendering but maybe don't skip layout and style computation?

Does it save much resources at all then? Id think that style computation and layouting takes a large chunk of the total resources used.