diff --git a/ScStwLibraries/ScStwLibraries.pri b/ScStwLibraries/ScStwLibraries.pri
index ae2576f..e34d9f9 100644
--- a/ScStwLibraries/ScStwLibraries.pri
+++ b/ScStwLibraries/ScStwLibraries.pri
@@ -1,22 +1,41 @@
-QT += qml quickcontrols2
-
 !isEmpty(SCSTWLIBRARIES_LIB):error("ScStwLibraries.pri already included")
 SCSTWLIBRARIES_LIB = 1
 
-#DEPENDS
-CONFIG(release, debug|release): {
-    SCSTWLIBRARIES_LIB_OUTPUT_DIR="$$PWD/build/release"
-} else {
-    SCSTWLIBRARIES_LIB_OUTPUT_DIR="$$PWD/build/debug"
+ScStwLibraries_QML {
+    QT += qml quickcontrols2
+    DEFINES += ScStwLibraries_QML
 }
 
-unix:LIBS += -L$$SCSTWLIBRARIES_LIB_OUTPUT_DIR -lScStwLibraries
-
-win32:LIBS += -L$$SCSTWLIBRARIES_LIB_OUTPUT_DIR -lScStwLibraries1
-
-android {
-    ANDROID_EXTRA_LIBS += $$SCSTWLIBRARIES_LIB_OUTPUT_DIR/libScStwLibraries.so
+ScStwLibraries_ClientLibs {
+    DEFINES += ScStwLibraries_ClientLibs
 }
 
-INCLUDEPATH += "$$PWD"
-INCLUDEPATH += "$$PWD"/headers
+INCLUDEPATH += $$PWD/headers $$PWD
+
+SOURCES += \
+    $$PWD/sources/ScStw.cpp \
+    $$PWD/sources/scstwsoundplayer.cpp \
+    $$PWD/sources/scstwlibraries.cpp \
+    $$PWD/sources/scstwrace.cpp \
+    $$PWD/sources/scstwtimer.cpp
+
+HEADERS += \
+    $$PWD/headers/ScStw.hpp \
+    $$PWD/headers/ScStwLibraries_global.h \
+    $$PWD/headers/scstwlibraries.h \
+    $$PWD/headers/scstwrace.h \
+    $$PWD/headers/scstwsoundplayer.h \
+    $$PWD/headers/scstwtimer.h
+
+ScStwLibraries_ClientLibs {
+SOURCES += \
+    $$PWD/sources/scstwclient.cpp
+    $$PWD/sources/scstwremotemonitorrace.cpp
+
+HEADERS += \
+    $$PWD/headers/scstwclient.h \
+    $$PWD/headers/scstwremotemonitorrace.h
+}
+
+RESOURCES += \
+    $$PWD/resources/ScStwLibrariesShared.qrc
diff --git a/ScStwLibraries/ScStwLibraries.pro b/ScStwLibraries/ScStwLibraries.pro
deleted file mode 100644
index 73f691d..0000000
--- a/ScStwLibraries/ScStwLibraries.pro
+++ /dev/null
@@ -1,57 +0,0 @@
-QT -= gui
-QT += network multimedia quick
-
-CONFIG(contains(QMAKE_LFLAGS_CONSOLE)){
-message("this is console")
-}
-
-TEMPLATE = lib
-DEFINES += SCSTWLIBRARIES_LIBRARY
-
-CONFIG += c++11
-
-# The following define makes your compiler emit warnings if you use
-# any Qt feature that has been marked deprecated (the exact warnings
-# depend on your compiler). Please consult the documentation of the
-# deprecated API in order to know how to port your code away from it.
-DEFINES += QT_DEPRECATED_WARNINGS
-
-# You can also make your code fail to compile if it uses deprecated APIs.
-# In order to do so, uncomment the following line.
-# You can also select to disable deprecated APIs only up to a certain version of Qt.
-#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
-
-SOURCES += \
-    sources/ScStw.cpp \
-    sources/scstwclient.cpp \
-    sources/scstwlibraries.cpp \
-    sources/scstwrace.cpp \
-    sources/scstwremotemonitorrace.cpp \
-    sources/scstwsoundplayer.cpp \
-    sources/scstwtimer.cpp
-
-HEADERS += \
-    headers/ScStw.hpp \
-    headers/ScStwLibraries_global.h \
-    headers/scstwlibraries.h \
-    headers/scstwrace.h \
-    headers/scstwclient.h \
-    headers/scstwremotemonitorrace.h \
-    headers/scstwsoundplayer.h \
-    headers/scstwtimer.h
-
-RESOURCES += \
-    resources/ScStwLibrariesShared.qrc
-
-DISTFILES +=
-
-#DEPENDS
-CONFIG(release, debug|release): {
-    DESTDIR="$$PWD/build/release"
-} else {
-    DESTDIR="$$PWD/build/debug"
-}
-
-# Default rules for deployment.
-target.path = /usr/local/lib
-!isEmpty(target.path): INSTALLS += target
diff --git a/ScStwLibraries/headers/scstwlibraries.h b/ScStwLibraries/headers/scstwlibraries.h
index df9f878..f6b1857 100644
--- a/ScStwLibraries/headers/scstwlibraries.h
+++ b/ScStwLibraries/headers/scstwlibraries.h
@@ -20,10 +20,15 @@
 #define SCSTWLIBRARIES_H
 
 #include <QObject>
+#ifdef ScStwLibraries_QML
 #include <QQmlApplicationEngine>
-#include "scstwclient.h"
+#endif
 #include "scstwtimer.h"
 #include "scstwrace.h"
+#ifdef ScStwLibraries_ClientLibs
+#include "scstwremotemonitorrace.h"
+#include "scstwclient.h"
+#endif
 
 class ScStwLibraries : public QObject
 {
diff --git a/ScStwLibraries/sources/scstwlibraries.cpp b/ScStwLibraries/sources/scstwlibraries.cpp
index 95a56da..427078c 100644
--- a/ScStwLibraries/sources/scstwlibraries.cpp
+++ b/ScStwLibraries/sources/scstwlibraries.cpp
@@ -24,11 +24,16 @@ ScStwLibraries::ScStwLibraries(QObject *parent) : QObject(parent)
 }
 
 void ScStwLibraries::init() {
+#ifdef ScStwLibraries_QML
     qmlRegisterType<ScStw>("de.itsblue.ScStw", 2, 0, "ScStw");
     qRegisterMetaType<ScStw::BaseStationSetting>("ScStw::BaseStationSetting");
     qRegisterMetaType<ScStw::SocketCommand>("ScStw::SocketCommand");
 
     qmlRegisterType<ScStwRace>("de.itsblue.ScStw", 2, 0, "ScStwRace");
     qmlRegisterType<ScStwTimer>("de.itsblue.ScStw", 2, 0, "ScStwTimer");
+
+#ifdef ScStwLibraries_ClientLibs
     qmlRegisterType<ScStwClient>("de.itsblue.ScStw", 2, 0, "ScStwClient");
+#endif
+#endif
 }