diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..8000214
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "opacapp-config-files"]
+	path = opacapp-config-files
+	url = git://github.com/opacapp/opacapp-config-files.git
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..6bba276
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,3 @@
+language: java
+jdk:
+ - oraclejdk8
diff --git a/opacapp-config-files b/opacapp-config-files
new file mode 160000
index 0000000..79a4094
--- /dev/null
+++ b/opacapp-config-files
@@ -0,0 +1 @@
+Subproject commit 79a409448b21ae8297486d7ad05541f4e6699f8b
diff --git a/src/main/java/de/codefor/opacapi/RestAPI.java b/src/main/java/de/codefor/opacapi/RestAPI.java
index da60d7c..4f453ed 100644
--- a/src/main/java/de/codefor/opacapi/RestAPI.java
+++ b/src/main/java/de/codefor/opacapi/RestAPI.java
@@ -33,6 +33,8 @@
 @RestController
 public class RestAPI {
 
+    public static final String CONFIG_FILES_PATH = "./opacapp-config-files/bibs";
+
     private static String readFile(String fileName) throws IOException {
         try (BufferedReader br = new BufferedReader(new FileReader(fileName))) {
             StringBuilder sb = new StringBuilder();
@@ -47,6 +49,16 @@ private static String readFile(String fileName) throws IOException {
         }
     }
 
+
+    private File[] getConfigFiles() {
+        return new File(CONFIG_FILES_PATH).listFiles();
+    }
+
+    private File getConfigFile(String libraryName) {
+        return new File(String.format("%s/%s.json", CONFIG_FILES_PATH, libraryName));
+    }
+
+
     @RequestMapping(value = "/libraries/{libraryName}/search",
             method = RequestMethod.GET,
             produces = {MediaType.APPLICATION_JSON_UTF8_VALUE},
@@ -203,7 +215,7 @@ private void checkSearchTerm(String searchTerm) {
 
     private OpacApi getOpacApi(String libraryName) {
         try {
-            File file = new File("../opacapp-config-files/bibs/" + libraryName + ".json");
+            File file = getConfigFile(libraryName);
             Library library = Library.fromJSON(libraryName, new JSONObject(readFile(file.getAbsolutePath())));
             return OpacApiFactory.create(library, new DummyStringProvider(),
                     new HttpClientFactory("HelloOpac/1.0.0", new OpacAPI().pathToTrustStore()), null, null);
@@ -217,9 +229,7 @@ private OpacApi getOpacApi(String libraryName) {
     private List<String> libraries(String nameOfCity) {
         List<String> libraries = new ArrayList<>();
 
-        File[] listOfFiles = new File("../opacapp-config-files/bibs").listFiles();
-
-        for (File file : listOfFiles) {
+        for (File file : getConfigFiles()) {
 
             String libraryName = file.getName().replace(".json", "");
 
@@ -240,8 +250,7 @@ public List<String> libraries() {
 
         List<String> libraries = new ArrayList<>();
 
-        File[] listOfFiles = new File("../opacapp-config-files/bibs").listFiles();
-        for (File file : listOfFiles) {
+        for (File file : getConfigFiles()) {
             libraries.add(file.getName().replace(".json", ""));
         }