diff --git a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run
index 4bf466c..e86854c 100755
--- a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run
+++ b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run
@@ -98,6 +98,7 @@ ENV_VARS=(
     "PULSE_SERVER /run/user/\$uid/pulse/native"
     "PATH /flamescion-container-tools/bin-override:\$PATH"
     "IS_ACE_ENV 1"
+    "XDG_DATA_DIRS /flamescion-container-tools/additional-data-dir-in-container:\$XDG_DATA_DIRS"
 )
 
 BIND_DIRS=(
diff --git a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run-bwrap b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run-bwrap
index f7e6488..995f4f8 100755
--- a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run-bwrap
+++ b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/bin/bookworm-run-bwrap
@@ -98,6 +98,7 @@ ENV_VARS=(
     "PULSE_SERVER /run/user/\$uid/pulse/native"
     "PATH /flamescion-container-tools/bin-override:\$PATH"
     "IS_ACE_ENV 1"
+    "XDG_DATA_DIRS /flamescion-container-tools/additional-data-dir-in-container:\$XDG_DATA_DIRS"
 )
 
 BIND_DIRS=(
diff --git a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/ace-host-integration/DEBIAN/control b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/ace-host-integration/DEBIAN/control
index b10f21d..4f876ef 100755
--- a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/ace-host-integration/DEBIAN/control
+++ b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/ace-host-integration/DEBIAN/control
@@ -1,5 +1,5 @@
 Package: ace-host-integration
-Version: 1.2.1
+Version: 1.2.2
 Section: misc
 Priority: optional
 Depends: bash
diff --git a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/additional-data-dir-in-container/README.md b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/additional-data-dir-in-container/README.md
new file mode 100644
index 0000000..c520540
--- /dev/null
+++ b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/additional-data-dir-in-container/README.md
@@ -0,0 +1 @@
+# File in this dir will be seen as one of  XDG_DATA_DIRS in ACE container.
diff --git a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/additional-data-dir-in-container/applications/ace-run-in-host-os.desktop b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/additional-data-dir-in-container/applications/ace-run-in-host-os.desktop
new file mode 100644
index 0000000..8481303
--- /dev/null
+++ b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/additional-data-dir-in-container/applications/ace-run-in-host-os.desktop
@@ -0,0 +1,10 @@
+[Desktop Entry]
+Exec=xdg-open %U
+MimeType=inode/directory;application/x-mimearchive;x-scheme-handler/http;x-scheme-handler/https;application/msword;application/vnd.openxmlformats-officedocument.wordprocessingml.document;application/vnd.ms-excel;application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;application/vnd.ms-powerpoint;application/vnd.openxmlformats-officedocument.presentationml.presentation;application/x-gzip;application/zip;application/rar;application/x-tar;application/pdf;application/rtf;image/gif;image/jpeg;image/jp2;image/png;image/tiff;image/bmp;image/svg+xml;image/webp;image/x-icon;application/kswps;application/kset;application/ksdps;application/x-photoshop;application/x-coreldraw;application/x-shockwave-flash;text/plain;application/x-javascript;text/javascript;text/css;text/html;application/xhtml+xml;text/xml;text/x-vcard;application/x-httpd-php;application/java-archive;application/vnd.android.package-archive;application/octet-stream;application/x-x509-user-cert;audio/mpeg;audio/midi;audio/x-wav;audio/x-mpegurl;audio/x-m4a;audio/ogg;audio/x-realaudio;video/mp4;video/mpeg;video/quicktime;video/x-m4v;video/x-ms-wmv;video/x-msvideo;video/webm;video/x-flv;application/xhtml_xml;
+Name=ace-run-in-host-os
+NoDisplay=true
+Terminal=false
+TryExec=
+Type=Application
+Version=1.0
+
diff --git a/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/data-dir/README.md b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/data-dir/README.md
new file mode 100644
index 0000000..1954e05
--- /dev/null
+++ b/src/opt/apps/cn.flamescion.bookworm-compatibility-mode/files/flamescion-container-tools/data-dir/README.md
@@ -0,0 +1 @@
+# App in this dir will be integrated to host os. Will create symbol link when installing