# Features

Inside the runtime. How PRNext is built, measured, and improved.

- [Two hours. 1,738 edits. What we tested.](https://prnext.dev/llms/en/blog/two-hours-of-development-testing.md): What PRNext’s two-hour development endurance test checked, what passed, and what the results do not prove.

- [Compile what you open. Keep what you need.](https://prnext.dev/llms/en/blog/how-prnext-keeps-development-work-focused.md): How PRNext 0.1.17 combines requested-route compilation, persistent transforms and conservative invalidation.

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Language: en

Canonical: https://prnext.dev/blog/category/engineering

Index: https://prnext.dev/llms.txt