Has anyone used the open-source reviveadserver code?

Do anyone who knows about the open-source ad server program put on github by foreigners? Can you tell me the logic process of advertisement selection? After reading the code for a few days and running it with a breakpoint, you can add a breakpoint if you cannot find it to trigger the ad selection and generate a competitive advertisement... do anyone who knows about the open-source ad server program put on github by foreigners? Can you tell me the logic process of advertisement selection? After reading the code for a few days and running it with a breakpoint, I cannot find a place where I can add a breakpoint to trigger the ad selection and generate the breakpoint location of the Competition Winner?
Thank you for your help!

This is the download source code Web site: https://github.com/revive-adserver/revive-adserver

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Do anyone who knows about the open-source ad server program put on github by foreigners? Can you tell me the logic process of advertisement selection? After reading the code for a few days and running it with a breakpoint, I cannot find a place where I can add a breakpoint to trigger the ad selection and generate the breakpoint location of the Competition Winner?
Thank you for your help!

This is the download source code Web site: https://github.com/revive-adserver/revive-adserver