diff --git a/mac/deploy.sh b/mac/deploy.sh
index ae2ed3f9..fffdbbeb 100755
--- a/mac/deploy.sh
+++ b/mac/deploy.sh
@@ -31,6 +31,11 @@ if [ ! -f "${ROOT_PATH}/${APP_NAME}.pro" ]; then
     exit 1
 fi
 
+# Install dmgbuild (for the current user), this is required to build the installer image
+python -m ensurepip --user --default-pip
+python -m pip install --user dmgbuild
+DMGBUILD_BIN="$(python -c 'import site; print(site.USER_BASE)')/bin/dmgbuild"
+
 # Get Jamulus version
 APP_VERSION=$(cat "${ROOT_PATH}/${APP_NAME}.pro" | sed -nE 's/^VERSION *= *(.*)$/\1/p')
 
@@ -44,9 +49,9 @@ mkdir -p "${DEPLOY_PATH}"
 build_app "${APP_NAME}"
 
 # Build Jamulus server
-build_app "${SERVER_NAME}" "DEFINES+=SERVER_MODE"
+build_app "${SERVER_NAME}" "DEFINES+=SERVER_BUNDLE"
 
 # Build installer image
-dmgbuild -s "${MAC_PATH}/deployment_settings.py" -D background="${RES_PATH}/installerbackground.png" \
+"${DMGBUILD_BIN}" -s "${MAC_PATH}/deployment_settings.py" -D background="${RES_PATH}/installerbackground.png" \
     -D app_path="${DEPLOY_PATH}/${APP_NAME}.app" -D server_path="${DEPLOY_PATH}/${SERVER_NAME}.app" \
     -D license="${ROOT_PATH}/COPYING" "${APP_NAME} Installer" "${DEPLOY_PATH}/${INSTALLER_NAME}.dmg"
diff --git a/mac/deployment_settings.py b/mac/deployment_settings.py
index 622ae85f..2ceb4b3a 100644
--- a/mac/deployment_settings.py
+++ b/mac/deployment_settings.py
@@ -64,9 +64,9 @@ include_list_view_settings = False
 
 # Where to put the icons
 icon_locations = {
-    app_name: (600, 240),
-    server_name: (500, 240),
-    "Applications": (790, 240)
+    app_name: (630, 210),
+    server_name: (530, 210),
+    "Applications": (820, 210)
 }
 
 # View/Window element configuration
@@ -76,18 +76,17 @@ show_toolbar = False
 show_pathbar = False
 show_sidebar = False
 show_icon_preview = False
-sidebar_width = 180
 
 # Window position in ((x, y), (w, h)) format
-window_rect = ((200, 400), (900, 340))
+window_rect = ((200, 400), (900, 320))
 
 # Icon view configuration
 arrange_by = None
 grid_offset = (0, 0)
-grid_spacing = 100
+grid_spacing = 72
 scroll_position = (0, 0)
 label_pos = "bottom"
-icon_size = 80
+icon_size = 72
 text_size = 12
 
 # License configuration
diff --git a/src/main.cpp b/src/main.cpp
index 43e27cd1..aa6a0b60 100755
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -44,7 +44,9 @@ int main ( int argc, char** argv )
 
     // initialize all flags and string which might be changed by command line
     // arguments
-#if defined( SERVER_MODE ) && ( defined( __APPLE__ ) || defined( __MACOSX ) )
+
+#if defined( SERVER_BUNDLE ) && ( defined( __APPLE__ ) || defined( __MACOSX ) )
+    // if we are on MacOS and we are building a server bundle, starts Jamulus in server mode
     bool         bIsClient                 = false;
 #else
     bool         bIsClient                 = true;
diff --git a/src/res/installerbackground.png b/src/res/installerbackground.png
index f2ddd9cd..230d2fb6 100644
Binary files a/src/res/installerbackground.png and b/src/res/installerbackground.png differ
diff --git a/src/res/installerbackground.xcf b/src/res/installerbackground.xcf
index 4b487005..a5776467 100644
Binary files a/src/res/installerbackground.xcf and b/src/res/installerbackground.xcf differ