diff --git a/Makefile b/Makefile
index 317f9b4..0239303 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 
-TARGETS = archiso/output/mod-live-usb-v3-x86_64.iso
+TARGETS = archiso/output/mod-live-usb-v4-x86_64.iso
 
 all: $(TARGETS)
 
diff --git a/archiso/build.sh b/archiso/build.sh
index e89a8d5..0445037 100755
--- a/archiso/build.sh
+++ b/archiso/build.sh
@@ -43,7 +43,8 @@ docker run \
   -v ${PWD}/../live-welcome:/opt/mount/live-welcome \
   --rm mod-live-usb_iso:latest \
   /usr/bin/make -C /opt/mount/live-welcome
-cp ${PWD}/../live-welcome/mod-live-usb-welcome ${MOD_LIVE_DIR}/mod-live-usb-welcome
+cp ${PWD}/../live-welcome/mod-live-usb-welcome     ${MOD_LIVE_DIR}/mod-live-usb-welcome
+cp ${PWD}/../live-welcome/mod-live-usb-welcome.run ${MOD_LIVE_DIR}/mod-live-usb-welcome.run
 
 # delete pre-generated script
 rm -f ${MOD_LIVE_DIR}/config/soundcard.sh
diff --git a/archiso/liveusb/airootfs/etc/systemd/system/mod-live-welcome.service b/archiso/liveusb/airootfs/etc/systemd/system/mod-live-welcome.service
index 861b4c5..e530b0c 100644
--- a/archiso/liveusb/airootfs/etc/systemd/system/mod-live-welcome.service
+++ b/archiso/liveusb/airootfs/etc/systemd/system/mod-live-welcome.service
@@ -2,13 +2,13 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 [Unit]
-Description=MOD Live Welcome
+Description=MOD Live-USB Welcome
 After=livecd-alsa-unmuter.service
 
 [Service]
 Type=simple
 Environment=USING_SYSTEMD=1
-ExecStart=/root/.mod-live/mod-live-usb-welcome -platform linuxfb -style Breeze --no-sandbox
+ExecStart=/root/.mod-live/mod-live-usb-welcome.run
 Restart=always
 WorkingDirectory=/root/
 
diff --git a/archiso/liveusb/efiboot/loader/entries/archiso-x86_64-linux.conf b/archiso/liveusb/efiboot/loader/entries/archiso-x86_64-linux.conf
index f694199..ef9fa58 100644
--- a/archiso/liveusb/efiboot/loader/entries/archiso-x86_64-linux.conf
+++ b/archiso/liveusb/efiboot/loader/entries/archiso-x86_64-linux.conf
@@ -1,9 +1,16 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-title   Arch Linux (x86_64, UEFI)
-linux   /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
+title   MOD Live-USB (x86_64, UEFI)
+linux   /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux-rt
 initrd  /%INSTALL_DIR%/boot/intel-ucode.img
 initrd  /%INSTALL_DIR%/boot/amd-ucode.img
-initrd  /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
-options archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL%
+initrd  /%INSTALL_DIR%/boot/x86_64/initramfs-linux-rt.img
+options archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% consoleblank=0 platform=linuxfb
+
+title   MOD Live-USB (x86_64, UEFI, HW accel)
+linux   /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux-rt
+initrd  /%INSTALL_DIR%/boot/intel-ucode.img
+initrd  /%INSTALL_DIR%/boot/amd-ucode.img
+initrd  /%INSTALL_DIR%/boot/x86_64/initramfs-linux-rt.img
+options archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% consoleblank=0 platform=eglfs
diff --git a/archiso/liveusb/packages.x86_64 b/archiso/liveusb/packages.x86_64
index 869c877..d39f298 100644
--- a/archiso/liveusb/packages.x86_64
+++ b/archiso/liveusb/packages.x86_64
@@ -12,8 +12,8 @@ efibootmgr
 intel-ucode
 kate
 konsole
-linux
 linux-firmware
+linux-rt
 memtest86+
 mkinitcpio
 mkinitcpio-archiso
diff --git a/archiso/liveusb/pacman.conf b/archiso/liveusb/pacman.conf
index 9d895e9..3f5d8df 100644
--- a/archiso/liveusb/pacman.conf
+++ b/archiso/liveusb/pacman.conf
@@ -86,6 +86,9 @@ Include = /etc/pacman.d/mirrorlist
 [community]
 Include = /etc/pacman.d/mirrorlist
 
+[realtime]
+Server = https://pkgbuild.com/~dvzrv/repos/realtime/$arch
+
 # If you want to run 32 bit applications on your x86_64 system,
 # enable the multilib repositories as required here.
 
diff --git a/archiso/liveusb/profiledef.sh b/archiso/liveusb/profiledef.sh
index 1013e4a..e43a147 100644
--- a/archiso/liveusb/profiledef.sh
+++ b/archiso/liveusb/profiledef.sh
@@ -2,10 +2,10 @@
 # shellcheck disable=SC2034
 
 iso_name="mod-live-usb"
-iso_label="v3"
+iso_label="v4"
 iso_publisher="MOD Devices <https://moddevices.com>"
 iso_application="MOD Live USB"
-iso_version="v3"
+iso_version="v4"
 install_dir="arch"
 bootmodes=('bios.syslinux.mbr' 'bios.syslinux.eltorito' 'uefi-x64.systemd-boot.esp' 'uefi-x64.systemd-boot.eltorito')
 arch="x86_64"
@@ -16,6 +16,7 @@ file_permissions=(
   ["/etc/shadow"]="0:0:400"
   ["/root"]="0:0:750"
   ["/root/.mod-live/mod-live-usb-welcome"]="0:0:755"
+  ["/root/.mod-live/mod-live-usb-welcome.run"]="0:0:755"
   ["/root/.mod-live/start.sh"]="0:0:755"
   ["/usr/local/bin/livecd-sound"]="0:0:755"
 )
diff --git a/archiso/liveusb/syslinux/syslinux-linux.cfg b/archiso/liveusb/syslinux/syslinux-linux.cfg
index 695c1aa..af353c8 100644
--- a/archiso/liveusb/syslinux/syslinux-linux.cfg
+++ b/archiso/liveusb/syslinux/syslinux-linux.cfg
@@ -3,6 +3,12 @@
 
 LABEL arch
 MENU LABEL MOD Live-USB (x86_64, BIOS)
-LINUX /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux
-INITRD /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
-APPEND archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% threadirqs
+LINUX /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux-rt
+INITRD /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux-rt.img
+APPEND archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% consoleblank=0 platform=linuxfb
+
+LABEL arch
+MENU LABEL MOD Live-USB (x86_64, BIOS, HW accel)
+LINUX /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux-rt
+INITRD /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux-rt.img
+APPEND archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% consoleblank=0 platform=eglfs
diff --git a/live-welcome/mod-live-usb-welcome.run b/live-welcome/mod-live-usb-welcome.run
new file mode 100755
index 0000000..3511628
--- /dev/null
+++ b/live-welcome/mod-live-usb-welcome.run
@@ -0,0 +1,14 @@
+#!/usr/bin/sh
+
+if [ -z "${USING_SYSTEMD}" ]; then
+    exit 0
+fi
+
+if grep -q platform=eglfs /proc/cmdline; then
+    PLATFORM=eglfs
+else
+    PLATFORM=linuxfb
+fi
+
+SELF=$(echo ${0} | sed "s/.run//")
+exec ${SELF} -platform ${PLATFORM} -style Breeze --no-sandbox
diff --git a/live-welcome/welcome.cpp b/live-welcome/welcome.cpp
index 4950ffe..64b79fd 100644
--- a/live-welcome/welcome.cpp
+++ b/live-welcome/welcome.cpp
@@ -9,7 +9,7 @@ int main(int argc, char* argv[])
 {
     QApplication app(argc, argv);
     // app.setApplicationDisplayName("MOD Live USB Welcome");
-    app.setApplicationName("MOD Live USB Welcome");
+    app.setApplicationName("MOD Live-USB Welcome");
 
     QFont font(app.font());
     font.setPixelSize(16);
@@ -78,8 +78,16 @@ int main(int argc, char* argv[])
 #endif
 
     KioskWindow win;
-    win.resize(1200, 800);
-    win.show();
+
+    if (getenv("USING_SYSTEMD") != nullptr)
+    {
+        win.showFullScreen();
+    }
+    else
+    {
+        win.resize(1200, 800);
+        win.show();
+    }
 
     if (getenv("TESTING") == nullptr)
         win.openSettings(false);