diff --git a/apple/Sources/Valhalla/Extensions/ValhallaConfig~.swift b/apple/Sources/Valhalla/Extensions/ValhallaConfig~.swift
new file mode 100644
index 0000000..80c71e3
--- /dev/null
+++ b/apple/Sources/Valhalla/Extensions/ValhallaConfig~.swift
@@ -0,0 +1,126 @@
+import Foundation
+import ValhallaModels
+
+extension ValhallaConfig {
+
+    /// Generate a ValhallaConfig using the defaults provided by the valhalla build scripts.
+    ///
+    /// This can be used to manipulate select values as a var.
+    init() {
+        guard
+            let configJsonURL = Bundle.module.url(
+                forResource: "SupportData/default", withExtension: "json")
+        else {
+            fatalError(
+                "ValhallaConfig SupportData/default.json config resource not found in module bundle."
+            )
+        }
+
+        do {
+            try self.init(fromURL: configJsonURL)
+        } catch {
+            fatalError("ValhallaConfig default.json config resource invalid json.")
+        }
+    }
+
+    init(tileExtractTar: URL) throws {
+        let defaultConfig = ValhallaConfig.loadDefault()
+
+        let mjolnir = Mjolnir(
+            admin: defaultConfig.mjolnir.admin,
+            dataProcessing: defaultConfig.mjolnir.dataProcessing,
+            globalSynchronizedCache: defaultConfig.mjolnir.globalSynchronizedCache,
+            hierarchy: defaultConfig.mjolnir.hierarchy,
+            idTableSize: defaultConfig.mjolnir.idTableSize,
+            importBikeShareStations: defaultConfig.mjolnir.importBikeShareStations,
+            includeBicycle: defaultConfig.mjolnir.includeBicycle,
+            includeConstruction: defaultConfig.mjolnir.includeConstruction,
+            includeDriveways: defaultConfig.mjolnir.includeDriveways,
+            includeDriving: defaultConfig.mjolnir.includeDriving,
+            includePedestrian: defaultConfig.mjolnir.includePedestrian,
+            logging: defaultConfig.mjolnir.logging,
+            lruMemCacheHardControl: defaultConfig.mjolnir.lruMemCacheHardControl,
+            maxCacheSize: defaultConfig.mjolnir.maxCacheSize,
+            maxConcurrentReaderUsers: defaultConfig.mjolnir.maxConcurrentReaderUsers,
+            reclassifyLinks: defaultConfig.mjolnir.reclassifyLinks,
+            shortcuts: defaultConfig.mjolnir.shortcuts,
+            tileDir: defaultConfig.mjolnir.tileDir,
+            tileExtract: tileExtractTar.relativePath,
+            timezone: defaultConfig.mjolnir.timezone,
+            trafficExtract: defaultConfig.mjolnir.trafficExtract,
+            transitDir: defaultConfig.mjolnir.transitDir,
+            transitFeedsDir: defaultConfig.mjolnir.transitFeedsDir,
+            useLRUMemCache: defaultConfig.mjolnir.useLRUMemCache,
+            useSimpleMemCache: defaultConfig.mjolnir.useSimpleMemCache)
+
+        self.init(
+            additionalData: defaultConfig.additionalData,
+            httpd: defaultConfig.httpd,
+            loki: defaultConfig.loki,
+            meili: defaultConfig.meili,
+            mjolnir: mjolnir,
+            odin: defaultConfig.odin,
+            serviceLimits: defaultConfig.serviceLimits,
+            statsd: defaultConfig.statsd,
+            thor: defaultConfig.thor)
+    }
+
+    init(tilesDir: URL) throws {
+        let defaultConfig = ValhallaConfig.loadDefault()
+
+        let mjolnir = Mjolnir(
+            admin: defaultConfig.mjolnir.admin,
+            dataProcessing: defaultConfig.mjolnir.dataProcessing,
+            globalSynchronizedCache: defaultConfig.mjolnir.globalSynchronizedCache,
+            hierarchy: defaultConfig.mjolnir.hierarchy,
+            idTableSize: defaultConfig.mjolnir.idTableSize,
+            importBikeShareStations: defaultConfig.mjolnir.importBikeShareStations,
+            includeBicycle: defaultConfig.mjolnir.includeBicycle,
+            includeConstruction: defaultConfig.mjolnir.includeConstruction,
+            includeDriveways: defaultConfig.mjolnir.includeDriveways,
+            includeDriving: defaultConfig.mjolnir.includeDriving,
+            includePedestrian: defaultConfig.mjolnir.includePedestrian,
+            logging: defaultConfig.mjolnir.logging,
+            lruMemCacheHardControl: defaultConfig.mjolnir.lruMemCacheHardControl,
+            maxCacheSize: defaultConfig.mjolnir.maxCacheSize,
+            maxConcurrentReaderUsers: defaultConfig.mjolnir.maxConcurrentReaderUsers,
+            reclassifyLinks: defaultConfig.mjolnir.reclassifyLinks,
+            shortcuts: defaultConfig.mjolnir.shortcuts,
+            tileDir: tilesDir.relativePath,
+            tileExtract: defaultConfig.mjolnir.tileExtract,
+            timezone: defaultConfig.mjolnir.timezone,
+            trafficExtract: defaultConfig.mjolnir.trafficExtract,
+            transitDir: defaultConfig.mjolnir.transitDir,
+            transitFeedsDir: defaultConfig.mjolnir.transitFeedsDir,
+            useLRUMemCache: defaultConfig.mjolnir.useLRUMemCache,
+            useSimpleMemCache: defaultConfig.mjolnir.useSimpleMemCache)
+
+        self.init(
+            additionalData: defaultConfig.additionalData,
+            httpd: defaultConfig.httpd,
+            loki: defaultConfig.loki,
+            meili: defaultConfig.meili,
+            mjolnir: mjolnir,
+            odin: defaultConfig.odin,
+            serviceLimits: defaultConfig.serviceLimits,
+            statsd: defaultConfig.statsd,
+            thor: defaultConfig.thor)
+    }
+
+    static func loadDefault() -> ValhallaConfig {
+        guard
+            let configJsonURL = Bundle.module.url(
+                forResource: "SupportData/default", withExtension: "json")
+        else {
+            fatalError(
+                "ValhallaConfig SupportData/default.json config resource not found in module bundle."
+            )
+        }
+
+        do {
+            return try ValhallaConfig(fromURL: configJsonURL)
+        } catch {
+            fatalError("ValhallaConfig default.json config resource invalid json.")
+        }
+    }
+}
diff --git a/apple/Sources/Valhalla/ValhallaFileManager.swift b/apple/Sources/Valhalla/ValhallaFileManager.swift
index 9abcd1b..338a2f8 100644
--- a/apple/Sources/Valhalla/ValhallaFileManager.swift
+++ b/apple/Sources/Valhalla/ValhallaFileManager.swift
@@ -40,7 +40,7 @@ enum ValhallaFileManager {
         }
 
         let tzdataFileData = try Data(contentsOf: tzdataFileURL)
-        let libraryURL = libraryDir.appendingPathComponent("tzdata")
+        let libraryURL = libraryDir.appendingPathComponent("tzdata.tar")
 
         // Write the tar to Library/tzdata
         // TODO: We can create our own tar extract here if we want to avoid the dependency