Fix build bugs

Author: ileasile

build-tools/build-plugin/src/build/RootSettingsExtension.kt

@@ -27,7 +27,7 @@ class RootSettingsExtension(
     var prGithubUser by project.prop<String>("jupyter.github.user")
     var prGithubToken by project.prop<String>("jupyter.github.token")
 
-    var isLocalBuild by project.prop<Boolean>("build.isLocal")
+    var isLocalBuild by project.prop("build.isLocal", false)
 
     var jvmTargetForSnippets by project.prop<String?>()
 

build.gradle.kts

@@ -165,7 +165,7 @@ kotlinPublications {
     }
 
     localRepositories {
-        defaultLocalMavenRepository()
+        localMavenRepository(rootSettings.artifactsDir.resolve("maven"))
     }
 
     publication {