Clarity around lr- prefixed config files?

[vwb]

Hello!

I'm using lighthouse programmatically to generate reports on a running schedule, and digging into proper configuration.

When looking through the lighthouse config files, I noticed that there are desktop and mobile configurations prefixed with lr-. Looking at the values of each, they are close to the default mobile and desktop. However, I am unable to determine what the significance of the lr- is, if there is any at all.

(Ideal for programmatic running? What is used in pagespeed insights? etc)

Thanks!

[connorjclark]

They are use for Lightrider, which powers PSI.

[vwb]

Gotcha! Thank you for clearing that up, appreciate it.

So if I were trying to configure programmatic runs to be as close as possible to the scores returned from PSI, would leveraging those configs would be the way to go?