Teamcity build configurations

Hello

I have created two new Android projects and configured the TeamCity by commiting current projects settings to repository using TeamCity 

Now each project has a bit different configuration:

Project 1:

settings.kts

version = "2018.1"

project {

    buildType(TCTestBuildConfiguration)
}

object TCTestBuildConfiguration : BuildType({
    name = "TCTest Build configuration"

    vcs {
        root(DslContext.settingsRoot)
    }

    steps {
        gradle {
            tasks = "clean build"
            buildFile = ""
            gradleWrapperPath = ""
        }

    }


})

Project 2: (has some custom code)

settings.kts

version = "2018.1"

project
}

//AndroidLint.kts (other files in path folder are similar) 

create(DslContext.projectId, BuildType({
    id("AndroidLint")
    name = "Android lint"

    vcs {
        root(DslContext.settingsRoot)
    }

    steps {
        gradle {
            tasks = "lint"
            buildFile = ""
            param("teamcity.tool.jacoco", "%teamcity.tool.jacoco.DEFAULT%")
        }
    }
}))

Now my question is what is the difference between these two configurations and with one is the desired way to go with? What is the role of path folder and when I would need it? When I should I follow teamcity files structure from Project 1 and when form  Project 2?