diff --git a/.gitignore b/.gitignore
index c7d01a3..ba48f9d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,6 @@ lost*
 # Ignore rtsp-simple-server binary
 bin/rtsp-simple-server/rtsp*
 bin/rtsp-simple-server/*.yml
+
+# Ignore Custom Config for Intsaller
+tools/config.local
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 0d9a406..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,6 +0,0 @@
-[submodule "bin/ustreamer"]
-	path = bin/ustreamer
-	url = https://github.com/pikvm/ustreamer
-	branch = master
-    ignore = untracked
-
diff --git a/Makefile b/Makefile
index f9c4c36..a85bea0 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@
 #### This File is distributed under GPLv3
 ####
 
-.PHONY: help install unsinstall build buildclean uninstallgo update
+.PHONY: help install unsinstall build buildclean
 
 # Setup
 USER = $(shell whoami)
@@ -27,7 +27,6 @@ help:
 	@echo ""
 	@echo "   install      Installs crowsnest"
 	@echo "   uninstall    Uninstalls crowsnest"
-	@echo "   update       Updates crowsnest (if needed)"
 	@echo "   build        builds binaries"
 	@echo "   buildclean   cleans binaries (for recompile)"
 	@echo ""
@@ -41,11 +40,7 @@ unattended:
 uninstall:
 	@bash -c 'tools/uninstall.sh'
 
-update:
-	@bash -c 'tools/update.sh'
-
 build:
-	@git submodule update
 	$(MAKE) -C $(BIN_FOLDER)
 
 buildclean:
diff --git a/README.md b/README.md
index 7288458..411b2c2 100644
--- a/README.md
+++ b/README.md
@@ -37,14 +37,6 @@ to your moonraker.conf, to get latest and possibly greatest Features.
     cd ~/crowsnest
     make uninstall
 
-### To manually update 'crowsnest'
-
-Normally, you can update via moonraker's Update Manager.
-Sometimes manual intervention is needed! See commit messages.
-
-    cd ~/crowsnest
-    make update
-
 ### Are there more options?
 
 Yes.
diff --git a/bin/ustreamer b/bin/ustreamer
deleted file mode 160000
index 61ab2a8..0000000
--- a/bin/ustreamer
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 61ab2a81a50c2347685b9993ddf84d0833ca7cfa
diff --git a/custompios/crowsnest/config b/custompios/crowsnest/config
index 47787d9..2f3d1ef 100644
--- a/custompios/crowsnest/config
+++ b/custompios/crowsnest/config
@@ -22,7 +22,7 @@
 
 
 # ustreamer
-[ -n "$CROWSNEST_USTREAMER_DEPS" ] || CROWSNEST_USTREAMER_DEPS="git build-essential libevent-dev libjpeg8-dev \
+[ -n "$CROWSNEST_USTREAMER_DEPS" ] || CROWSNEST_USTREAMER_DEPS="git build-essential libevent-dev libjpeg-dev \
 libbsd-dev libraspberrypi-dev libgpiod-dev"
 [ -n "$CROWSNEST_USTREAMER_WITH_OMX" ] || CROWSNEST_USTREAMER_WITH_OMX="y"
 [ -n "$CROWSNEST_USTREAMER_WITH_GPIO" ] || CROWSNEST_USTREAMER_WITH_GPIO="n"
diff --git a/custompios/crowsnest/start_chroot_script b/custompios/crowsnest/start_chroot_script
index 4961f3f..c60770b 100644
--- a/custompios/crowsnest/start_chroot_script
+++ b/custompios/crowsnest/start_chroot_script
@@ -22,7 +22,8 @@ echo_green "Installing crowsnest and enable webcam Service ..."
 # force apt update
 apt update
 # It could use inbuilt dependencie check, but should speed up if preinstalled.
-check_install_pkgs "${CROWSNEST_CROWSNEST_DEPS}"
+# shellcheck disable=SC2086
+check_install_pkgs ${CROWSNEST_CROWSNEST_DEPS} ${CROWSNEST_USTREAMER_DEPS}
 # Move to $HOME dir
 pushd "/home/${BASE_USER}" &> /dev/null || exit 1
     # make sure config folder exist
diff --git a/tools/config.bullseye b/tools/config.bullseye
new file mode 100644
index 0000000..fd0ed78
--- /dev/null
+++ b/tools/config.bullseye
@@ -0,0 +1,28 @@
+#!/bin/bash
+#### webcamd - A webcam Service for multiple Cams and Stream Services.
+####
+#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
+#### Copyright 2021
+#### https://github.com/mainsail-crew/crowsnest
+####
+#### This File is distributed under GPLv3
+####
+# shellcheck disable=all
+
+
+[ -n "$CROWSNEST_CROWSNEST_DEPS" ] || CROWSNEST_CROWSNEST_DEPS="git crudini bsdutils findutils v4l-utils ffmpeg"
+[ -n "$CROWSNEST_DEFAULT_CONF" ] || CROWSNEST_DEFAULT_CONF="mainsail_default.conf"
+[ -n "$CROWSNEST_DEFAULT_CONF_DIR" ] || CROWSNEST_DEFAULT_CONF_DIR="/home/${BASE_USER}/klipper_config"
+# Force Raspicam fix bool (1:yes / 0:no)
+[ -n "$CROWSNEST_FORCE_RASPICAMFIX" ] || CROWSNEST_FORCE_RASPICAMFIX=1
+# Add Crowsnest to moonraker.conf (update manager) bool (1:yes / 0:no)
+[ -n "$CROWSNEST_ADD_CROWSNEST_MOONRAKER" ] || CROWSNEST_ADD_CROWSNEST_MOONRAKER=1
+
+
+# ustreamer
+[ -n "$CROWSNEST_USTREAMER_REPO_SHIP" ] || CROWSNEST_USTREAMER_REPO_SHIP=https://github.com/pikvm/ustreamer.git
+[ -n "$CROWSNEST_USTREAMER_REPO_BRANCH" ] || CROWSNEST_USTREAMER_REPO_BRANCH=master
+[ -n "$CROWSNEST_USTREAMER_DEPS" ] || CROWSNEST_USTREAMER_DEPS="git build-essential libevent-dev libjpeg62-turbo-dev \
+libbsd-dev libgpiod-dev"
+[ -n "$CROWSNEST_USTREAMER_WITH_OMX" ] || CROWSNEST_USTREAMER_WITH_OMX="n"
+[ -n "$CROWSNEST_USTREAMER_WITH_GPIO" ] || CROWSNEST_USTREAMER_WITH_GPIO="n"
diff --git a/tools/config.buster b/tools/config.buster
new file mode 100644
index 0000000..7bca6f3
--- /dev/null
+++ b/tools/config.buster
@@ -0,0 +1,28 @@
+#!/bin/bash
+#### webcamd - A webcam Service for multiple Cams and Stream Services.
+####
+#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
+#### Copyright 2021
+#### https://github.com/mainsail-crew/crowsnest
+####
+#### This File is distributed under GPLv3
+####
+# shellcheck disable=all
+
+
+[ -n "$CROWSNEST_CROWSNEST_DEPS" ] || CROWSNEST_CROWSNEST_DEPS="git crudini bsdutils findutils v4l-utils ffmpeg"
+[ -n "$CROWSNEST_DEFAULT_CONF" ] || CROWSNEST_DEFAULT_CONF="mainsail_default.conf"
+[ -n "$CROWSNEST_DEFAULT_CONF_DIR" ] || CROWSNEST_DEFAULT_CONF_DIR="/home/${BASE_USER}/klipper_config"
+# Force Raspicam fix bool (1:yes / 0:no)
+[ -n "$CROWSNEST_FORCE_RASPICAMFIX" ] || CROWSNEST_FORCE_RASPICAMFIX=1
+# Add Crowsnest to moonraker.conf (update manager) bool (1:yes / 0:no)
+[ -n "$CROWSNEST_ADD_CROWSNEST_MOONRAKER" ] || CROWSNEST_ADD_CROWSNEST_MOONRAKER=1
+
+
+# ustreamer
+[ -n "$CROWSNEST_USTREAMER_REPO_SHIP" ] || CROWSNEST_USTREAMER_REPO_SHIP=https://github.com/pikvm/ustreamer
+[ -n "$CROWSNEST_USTREAMER_REPO_BRANCH" ] || CROWSNEST_USTREAMER_REPO_BRANCH=master
+[ -n "$CROWSNEST_USTREAMER_DEPS" ] || CROWSNEST_USTREAMER_DEPS="git build-essential libevent-dev libjpeg8-dev \
+libbsd-dev libraspberrypi-dev libgpiod-dev"
+[ -n "$CROWSNEST_USTREAMER_WITH_OMX" ] || CROWSNEST_USTREAMER_WITH_OMX="y"
+[ -n "$CROWSNEST_USTREAMER_WITH_GPIO" ] || CROWSNEST_USTREAMER_WITH_GPIO="n"
diff --git a/tools/config.local.example b/tools/config.local.example
new file mode 100644
index 0000000..33e9273
--- /dev/null
+++ b/tools/config.local.example
@@ -0,0 +1,28 @@
+#!/bin/bash
+#### webcamd - A webcam Service for multiple Cams and Stream Services.
+####
+#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
+#### Copyright 2021
+#### https://github.com/mainsail-crew/crowsnest
+####
+#### This File is distributed under GPLv3
+####
+# shellcheck disable=all
+
+
+[ -n "$CROWSNEST_CROWSNEST_DEPS" ] || CROWSNEST_CROWSNEST_DEPS="git crudini bsdutils findutils v4l-utils ffmpeg"
+[ -n "$CROWSNEST_DEFAULT_CONF" ] || CROWSNEST_DEFAULT_CONF="mainsail_default.conf"
+[ -n "$CROWSNEST_DEFAULT_CONF_DIR" ] || CROWSNEST_DEFAULT_CONF_DIR="/home/${BASE_USER}/klipper_config"
+# Force Raspicam fix bool (1:yes / 0:no)
+[ -n "$CROWSNEST_FORCE_RASPICAMFIX" ] || CROWSNEST_FORCE_RASPICAMFIX=0
+# Add Crowsnest to moonraker.conf (update manager) bool (1:yes / 0:no)
+[ -n "$CROWSNEST_ADD_CROWSNEST_MOONRAKER" ] || CROWSNEST_ADD_CROWSNEST_MOONRAKER=0
+
+
+# ustreamer
+[ -n "$CROWSNEST_USTREAMER_REPO_SHIP" ] || CROWSNEST_USTREAMER_REPO_SHIP=https://github.com/pikvm/ustreamer.git
+[ -n "$CROWSNEST_USTREAMER_REPO_BRANCH" ] || CROWSNEST_USTREAMER_REPO_BRANCH=master
+[ -n "$CROWSNEST_USTREAMER_DEPS" ] || CROWSNEST_USTREAMER_DEPS="git build-essential libevent-dev libjpeg62-turbo-dev \
+libbsd-dev libgpiod-dev"
+[ -n "$CROWSNEST_USTREAMER_WITH_OMX" ] || CROWSNEST_USTREAMER_WITH_OMX="n"
+[ -n "$CROWSNEST_USTREAMER_WITH_GPIO" ] || CROWSNEST_USTREAMER_WITH_GPIO="n"
diff --git a/tools/x86_config b/tools/config.x86
similarity index 83%
rename from tools/x86_config
rename to tools/config.x86
index ab88c05..4bb070b 100644
--- a/tools/x86_config
+++ b/tools/config.x86
@@ -17,6 +17,8 @@ libxcomposite1 libxtst6"
 [ -n "$CROWSNEST_MOONRAKER_SUPPORT" ] || CROWSNEST_MOONRAKER_SUPPORT="y"
 
 # ustreamer
+[ -n "$CROWSNEST_USTREAMER_REPO_SHIP" ] || CROWSNEST_USTREAMER_REPO_SHIP=https://github.com/pikvm/ustreamer.git
+[ -n "$CROWSNEST_USTREAMER_REPO_BRANCH" ] || CROWSNEST_USTREAMER_REPO_BRANCH=master
 [ -n "$CROWSNEST_USTREAMER_DEPS" ] || CROWSNEST_USTREAMER_DEPS="git build-essential libevent-dev libjpeg-dev \
 libbsd-dev"
 [ -n "$CROWSNEST_USTREAMER_WITH_OMX" ] || CROWSNEST_USTREAMER_WITH_OMX="n"
diff --git a/tools/install.sh b/tools/install.sh
index 3da6a06..367eb4f 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -84,22 +84,47 @@ function err_exit {
 ### Init ERR Trap
 trap 'err_exit $? $LINENO' ERR
 
+## helper func
+## call get_os_version <keyword>
+function get_os_version {
+    if [ -n "${1}" ]; then
+        grep -c "${1}" /etc/os-release
+    fi
+}
+
 ### Import config from custompios.
 function import_config {
-    if [ "$(uname -m)" == "x86_64" ] &&
-    [ -f tools/x86_config ]; then
+    ## Source Custom config if present
+    if [ -s tools/config.local ]; then
         # shellcheck disable=SC1091
-        source tools/x86_config
-    else
-        if [ -f "${HOME}/crowsnest/custompios/crowsnest/config" ]; then
-            # shellcheck disable=SC1091
-            source custompios/crowsnest/config
-        else
-            echo -e "${TITLE}\n"
-            echo -e "OOPS!\nConfiguration File missing! Exiting..."
-            echo -e "Try to git clone a second time please ...\n"
-            exit 1
-        fi
+        source tools/config.local
+        return 0
+    fi
+
+    ## X86 machines
+    if [ "$(uname -m)" == "x86_64" ] &&
+    [ -f tools/config.x86 ]; then
+        # shellcheck disable=SC1091
+        source tools/config.x86
+        return 0
+    fi
+
+    ## rpi os buster
+    if [ "$(uname -m)" != "x86_64" ] &&
+    [ "$(get_os_version buster)" != "0" ] &&
+    [ -f "tools/config.buster" ]; then
+        # shellcheck disable=SC1091
+        source tools/config.buster
+        return 0
+    fi
+
+    ## rpi os bullseye
+    if [ "$(uname -m)" != "x86_64" ] &&
+    [ "$(get_os_version bullseye)" != "0" ] &&
+    [ -f "tools/config.bullseye" ]; then
+        # shellcheck disable=SC1091
+        source tools/config.bullseye
+        return 0
     fi
 }
 
@@ -167,12 +192,17 @@ function install_crowsnest {
     moonraker_update="${PWD}/file_templates/moonraker_update.txt"
     ## helper func moonraker update_manager
     function add_update_entry {
-        sudo -u "${BASE_USER}" \
-        cp "${moonraker_conf}" "${moonraker_conf}.backup" &&
-        cat "${moonraker_conf}" "${moonraker_update}" > /tmp/moonraker.conf &&
-        cp -rf /tmp/moonraker.conf "${moonraker_conf}"
-        if [ "${UNATTENDED}" == "true" ]; then
-            sudo rm -f "${moonraker_conf}.backup"
+        if [ -f "${moonraker_conf}" ]; then
+            echo -e "Adding [update_manager] entry ..."
+            sudo -u "${BASE_USER}" \
+            cp "${moonraker_conf}" "${moonraker_conf}.backup" &&
+            cat "${moonraker_conf}" "${moonraker_update}" > /tmp/moonraker.conf &&
+            cp -rf /tmp/moonraker.conf "${moonraker_conf}"
+            if [ "${UNATTENDED}" == "true" ]; then
+                sudo rm -f "${moonraker_conf}.backup"
+            fi
+        else
+            echo -e "moonraker.conf is missing ... [SKIPPED]"
         fi
     }
     echo -e "\nInstall webcamd Service ..."
@@ -230,7 +260,8 @@ function install_crowsnest {
         echo -e "Adding Crowsnest Update Manager entry to moonraker.conf ... [OK]"
     fi
     ## Manual install
-    if [ "${UNATTENDED}" != "true" ]; then
+    if [ "${UNATTENDED}" != "true" ] &&
+    [ "${CROWSNEST_ADD_CROWSNEST_MOONRAKER}" != "0" ]; then
         read -rp "Do you want to add [update_manager] entry?(y/n) " addconf
         case "${addconf}" in
             y*|Y*)
@@ -254,17 +285,27 @@ function install_crowsnest {
     fi
 }
 
-# Make sure submodules are initialized
-function sub_init {
-    if [ ! -f "${HOME}/crowsnest/bin/ustreamer/Makefile" ]; then
-        echo -e "Submodule is not initialized ..."
-        git submodule update --init > /dev/null
-        echo -e "Submodule is not initialized ... [OK]"
+function clone_ustreamer {
+    ## remove bin/ustreamer if exist
+    if [ -d bin/ustreamer ]; then
+        rm -rf bin/ustreamer
+    fi
+    git clone "${CROWSNEST_USTREAMER_REPO_SHIP}" \
+    -b "${CROWSNEST_USTREAMER_REPO_BRANCH}" bin/ustreamer
+    ## Buster workaround
+    ## ustreamer support omx only till version 4.13
+    ## so stick to that version
+    if [ "$(get_os_version buster)" != "0" ]; then
+        pushd bin/ustreamer &> /dev/null || exit 1
+        git reset --hard 61ab2a8
+        popd &> /dev/null || exit 1
     fi
 }
 
 function build_apps {
     echo -e "Build dependend Stream Apps ..."
+    echo -e "Cloning ustreamer repository ..."
+    clone_ustreamer
     echo -e "Installing 'ustreamer' Dependencies ..."
     # shellcheck disable=2086
     sudo apt install --yes --no-install-recommends ${CROWSNEST_USTREAMER_DEPS} > /dev/null
@@ -287,6 +328,21 @@ function install_raspicam_fix {
     fi
 }
 
+function enable_legacy_cam {
+    local cfg
+    cfg="/boot/config.txt"
+    echo -en "Enable legacy camera stack ... \r"
+    sudo sed -i "s/camera_auto_detect=1/#camera_auto_detect=1/" "${cfg}"
+    if [ "$(grep -c "start_x" "${cfg}")" == "0" ]; then
+        sudo crudini --set --inplace "${cfg}" all start_x 1 &> /dev/null
+    fi
+    if [ "$(grep -c "gpu_mem" "${cfg}")" == "0" ]; then
+        sudo crudini --set --inplace "${cfg}" pi4 gpu_mem 256 &> /dev/null
+        sudo crudini --set --inplace "${cfg}" all gpu_mem 128 &> /dev/null
+    fi
+    echo -e "Enable legacy camera stack ... [OK]"
+}
+
 #### MAIN
 while getopts "z" arg; do
     case ${arg} in
@@ -309,11 +365,14 @@ fi
 echo -e "Running apt update first ..."
 sudo apt update
 install_crowsnest
-sub_init
 build_apps
-if [ "${UNATTENDED}" != "true" ]; then
+if [ "${UNATTENDED}" != "true" ] &&
+[ "${CROWSNEST_FORCE_RASPICAMFIX}" != "0" ]; then
     install_raspicam_fix
 fi
+if [ "$(get_os_version bullseye)" != "0" ]; then
+    enable_legacy_cam
+fi
 goodbye_msg
 
 exit 0
diff --git a/tools/uninstall.sh b/tools/uninstall.sh
index 53506e1..e055445 100755
--- a/tools/uninstall.sh
+++ b/tools/uninstall.sh
@@ -75,9 +75,6 @@ function ask_uninstall {
         read -rp "Do you REALLY want to remove existing 'crowsnest'? (YES/NO) " remove
         if [ "${remove}" = "YES" ]; then
             uninstall_crowsnest
-            uninstall_v4l2rtsp
-            # go unsinstaller is deprecated will be removed in future
-            uninstall_go
             remove_raspicam_fix
             remove_logrotate
             goodbye_msg
@@ -109,37 +106,6 @@ function uninstall_crowsnest {
     echo -e "Uninstalling webcamd.service...[OK]\r"
 }
 
-#obsolete will be removed in future
-function uninstall_v4l2rtsp {
-    local bin_path v4l2rtsp_dir
-    bin_path="/usr/local/bin/v4l2rtspserver"
-    v4l2rtsp_dir="${HOME}/v4l2rtspserver"
-    if [ -d "${v4l2rtsp_dir}" ]; then
-        echo -en "Uninstalling 'v4l2rtspserver' ...\r"
-        if [ -x "${bin_path}" ]; then
-            sudo rm -f "${bin_path}"
-        fi
-        sudo rm -rf "${v4l2rtsp_dir}"
-        echo -e "Uninstalling 'v4l2rtspserver' ... [OK]\r"
-    fi
-}
-
-#obsolete will be removed in future
-function uninstall_go {
-    if [ -n "$(whereis -b go | awk '{print $2}')" ]; then
-        echo -e "\nFound $(go version)\n"
-    else
-        echo -e "No Version of Go Lang found ... [SKIPPED]"
-    fi
-    if  [ -d "/usr/local/go" ] && [ -f "${HOME}/.gorc" ]; then
-        sudo rm -rf "$(whereis -b go | awk '{print $2}')"
-        rm -f "${HOME}/.gorc"
-        sudo rm -rf "${HOME}/golang"
-        sed -i '/# Add Go/d;/.gorc/d' "${HOME}/.profile"
-        echo -e "\nUninstall complete!"
-    fi
-}
-
 function remove_raspicam_fix {
     if [ -f /etc/modprobe.d/bcm2835-v4l2.conf ] &&
     [ -f /proc/device-tree/model ] &&
diff --git a/tools/update.sh b/tools/update.sh
deleted file mode 100755
index 6354101..0000000
--- a/tools/update.sh
+++ /dev/null
@@ -1,338 +0,0 @@
-#!/usr/bin/env bash
-#### webcamd - A webcam Service for multiple Cams and Stream Services.
-####
-#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
-#### Copyright 2021
-#### https://github.com/mainsail-crew/crowsnest
-####
-#### This File is distributed under GPLv3
-####
-
-# shellcheck enable=requires-variable-braces
-
-# Global Vars
-BASE_USER=$(whoami)
-TITLE="crowsnest - A Webcam Daemon for Raspberry Pi OS"
-
-
-### Non root
-if [ ${UID} == '0' ]; then
-    echo -e "DO NOT RUN THIS SCRIPT AS ROOT!\nExiting..."
-    exit 1
-fi
-
-### noninteractive Check
-if [ -z "${DEBIAN_FRONTEND}" ]; then
-    export DEBIAN_FRONTEND=noninteractive
-fi
-
-### Functions
-
-### Messages
-# Welcome Message
-function welcome_msg {
-    echo -e "${TITLE}\n"
-    echo -e "\tYou will be prompted for your 'sudo' password, if needed."
-    echo -e "\tSome Parts of the Updater requires 'root' privileges."
-    # Dirty hack to gain root permissions
-    sudo echo -e "\n"
-}
-
-# Goodbye Message
-function goodbye_msg {
-    echo -e "\nInstallation complete.\n"
-    echo -e "\tIn case something was updated:\n\tPlease reboot your machine!"
-    echo -e "I hope you enjoy crowsnest, GoodBye ..."
-}
-
-# No longer needed Message
-function remove_message {
-    echo -e "Found ${1}, remove because it is not longer needed."
-}
-
-### General
-## These two functions are reused from custompios common.sh
-## Credits to guysoft!
-## https://github.com/guysoft/CustomPiOS
-
-function install_cleanup_trap() {
-    # kills all child processes of the current process on SIGINT or SIGTERM
-    trap 'cleanup' SIGINT SIGTERM
-}
-
-function cleanup() {
-    # make sure that all child processed die when we die
-    echo -e "Killed by user ...\r\nGoodBye ...\r"
-    # shellcheck disable=2046
-    [ -n "$(jobs -pr)" ] && kill $(jobs -pr) && sleep 5 && kill -9 $(jobs -pr)
-}
-
-function err_exit {
-    if [ "${1}" != "0" ]; then
-        echo -e "ERROR: Error ${1} occured on line ${2}"
-        echo -e "ERROR: Stopping $(basename "$0")."
-        echo -e "Goodbye..."
-    fi
-    # shellcheck disable=2046
-    [ -n "$(jobs -pr)" ] && kill $(jobs -pr) && sleep 5 && kill -9 $(jobs -pr)
-    exit 1
-}
-
-### Init ERR Trap
-trap 'err_exit $? $LINENO' ERR
-
-# Helper funcs
-function stop_webcamd {
-    if [ "$(sudo systemctl is-active webcamd.service)" = "active" ]; then
-        sudo systemctl stop webcamd &> /dev/null
-    fi
-}
-
-function start_webcamd {
-    if [ "$(sudo systemctl is-active webcamd.service)" = "active" ]; then
-        sudo systemctl start webcamd &> /dev/null
-    fi
-}
-
-function daemon_reload {
-    echo -en "Reload systemd to enable new deamon ...\r"
-    sudo systemctl daemon-reload &> /dev/null
-    echo -e "Reload systemd to enable new daemon ... [OK]"
-}
-
-function compare_files {
-    local installed template
-    installed="$(sha256sum "${1}" | awk '{print $1}')"
-    template="$(sha256sum "${2}" | awk '{print $1}')"
-    if [ -f "${1}" ] && [ "${installed}" != "${template}" ]; then
-        echo "1"
-    else
-        echo "0"
-    fi
-}
-
-### Import config from custompios.
-function import_config {
-    if [ -f "${HOME}/crowsnest/custompios/crowsnest/config" ]; then
-        # shellcheck disable=SC1091
-        source custompios/crowsnest/config
-    else
-        echo -e "${TITLE}\n"
-        echo -e "OOPS!\nConfiguration File missing! Exiting..."
-        echo -e "Try to git clone a second time please ...\n"
-        exit 1
-    fi
-}
-
-# Copy Files funcs
-function copy_service {
-    local servicefile template origin
-    origin="/etc/systemd/system/webcamd.service"
-    if [ ! "${BASE_USER}" == "pi" ]; then
-        template="${HOME}/crowsnest/file_templates/webcamd.service"
-        cp -rf "${template}" /tmp/webcamd.service
-        sudo sed -i 's|pi|'"${BASE_USER}"'|g' /tmp/webcamd.service
-        servicefile="/tmp/webcamd.service"
-    else
-        servicefile="${HOME}/crowsnest/file_templates/webcamd.service"
-    fi
-    if [ "$(compare_files "${origin}" "${servicefile}")" -eq 1 ]; then
-        echo -en "Copying webcamd.service file ...\r"
-        sudo cp -rf "${servicefile}" "${origin}" > /dev/null
-        echo -e "Copying webcamd.service file ... [OK]\r"
-        daemon_reload
-    else
-        echo -e "No update of '${origin}' required."
-    fi
-    # Clean Temp File
-    if [ -f /tmp/webcamd.service ]; then
-        sudo rm -f /tmp/webcamd.service
-    fi
-}
-
-function copy_logrotate {
-    local logrotatefile template origin
-    origin="/etc/logrotate.d/webcamd"
-    if [ ! "${BASE_USER}" == "pi" ]; then
-        template="${HOME}/crowsnest/file_templates/logrotate_webcamd"
-        cp -rf "${template}" /tmp/webcamd
-        sudo sed -i 's|pi|'"${BASE_USER}"'|g' /tmp/webcamd
-        logrotatefile="/tmp/webcamd"
-    else
-        logrotatefile="${HOME}/crowsnest/file_templates/logrotate_webcamd"
-    fi
-    if [ "$(compare_files "${origin}" "${logrotatefile}")" -eq 1 ]; then
-        echo -en "Copying logrotate file ...\r"
-        sudo cp -rf "${logrotatefile}" "${origin}" > /dev/null
-        echo -e "Copying logrotate file ... [OK]\r"
-    else
-        echo -e "No update of '${origin}' required."
-    fi
-    # Clean Temp File
-    if [ -f /tmp/webcamd ]; then
-        sudo rm -f /tmp/webcamd
-    fi
-}
-
-function copy_raspicam_fix {
-    local moduleconf origin
-    origin="/etc/modprobe.d/bcm2835-v4l2.conf"
-    moduleconf="${HOME}/crowsnest/file_templates/bcm2835-v4l2.conf"
-    if [ ! -f "${origin}" ]; then
-        echo -en "Copying bcm2835-v4l2.conf file ...\r"
-        sudo cp -rf "${moduleconf}" "${origin}" > /dev/null
-        echo -e "Copying bcm2835-v4l2.conf file ... [OK]\r"
-    else
-        if [ "$(compare_files "${origin}" "${moduleconf}")" -eq 1 ]; then
-            echo -en "Copying bcm2835-v4l2.conf file ...\r"
-            sudo cp -rf "${moduleconf}" "${origin}" > /dev/null
-            echo -e "Copying bcm2835-v4l2.conf file ... [OK]\r"
-        else
-            echo -e "No update of '${origin}' required."
-        fi
-    fi
-}
-
-# Uninstall funcs
-function uninstall_v4l2rtsp {
-    local bin_path v4l2rtsp_dir
-    bin_path="/usr/local/bin/v4l2rtspserver"
-    v4l2rtsp_dir="${HOME}/v4l2rtspserver"
-    if [ -d "${v4l2rtsp_dir}" ]; then
-        remove_message "v4l2rtspserver"
-        echo -en "Uninstalling 'v4l2rtspserver' ...\r"
-        if [ -x "${bin_path}" ]; then
-            sudo rm -f "${bin_path}"
-        fi
-        sudo rm -rf "${v4l2rtsp_dir}"
-        echo -e "Uninstalling 'v4l2rtspserver' ... [OK]\r"
-    fi
-}
-
-# This removes ustreamer if not inside of crowsnest! ( $HOME/ustreamer )
-function uninstall_ustreamer {
-    local bin_path ustreamer_dir
-    bin_path="/usr/local/bin/ustreamer"
-    ustreamer_dir="${HOME}/ustreamer"
-    if [ -d "${ustreamer_dir}" ]; then
-        remove_message "ustreamer"
-        echo -en "Uninstalling '${HOME}/ustreamer' ...\r"
-        if [ -x "${bin_path}" ]; then
-            sudo rm -f "${bin_path}"
-        fi
-        sudo rm -rf "${ustreamer_dir}"
-        echo -e "Uninstalling '${HOME}/ustreamer' ... [OK]\r"
-    fi
-}
-
-# Remove no longer needed Go installation
-function uninstall_go {
-    if [ -n "$(whereis -b go | awk '{print $2}')" ]; then
-        echo -e "\nFound $(go version)\n"
-    else
-        echo -e "No Version of Go Lang found ... [SKIPPED]"
-    fi
-    if  [ -d "/usr/local/go" ] && [ -f "${HOME}/.gorc" ]; then
-        sudo rm -rf "$(whereis -b go | awk '{print $2}')"
-        rm -f "${HOME}/.gorc"
-        sudo rm -rf "${HOME}/golang"
-        sed -i '/# Add Go/d;/.gorc/d' "${HOME}/.profile"
-        echo -e "\nUninstall complete!"
-    fi
-}
-
-# remove obsolete RTSPtoWebRTC
-function uninstall_rtsp2webrtc {
-    if [ -d "${HOME}/crowsnest/bin/RTSPtoWebRTC" ];then
-        echo -e "Removing RTSPtoWebRTC ..."
-        sudo rm -rf "${HOME}/crowsnest/bin/RTSPtoWebRTC"
-        echo -e "Removing RTSPtoWebRTC ... [OK]"
-    fi
-}
-
-
-# Install funcs
-# Make sure ustreamer submodule is initialized
-function sub_init {
-    if [ ! -f "${HOME}/crowsnest/bin/ustreamer/Makefile" ]; then
-        echo -e "Submodules are not initialized ..."
-        git submodule update --init > /dev/null
-        echo -e "Submodules are not initialized ... [OK]"
-    fi
-}
-
-# Build Apps
-function build_apps {
-    echo -e "\nDependency Check: Check for compiled Apps ..."
-    if [ ! -x "bin/ustreamer/src/ustreamer.bin" ] \
-    || [ ! -x "bin/rtsp-simple-server/rtsp-simple-server" ]; then
-        echo -e "Build dependend Stream Apps ..."
-        echo -e "Installing 'ustreamer' Dependencies ..."
-        # shellcheck disable=2086
-        sudo apt install --yes --no-install-recommends ${CROWSNEST_USTREAMER_DEPS} > /dev/null
-        echo -e "Installing 'ustreamer' Dependencies ... [OK]"
-        pushd bin > /dev/null || exit 1
-        make all
-        popd > /dev/null || exit 1
-    else
-        echo -e "All Apps are present ... [OK]"
-        update_ustreamer
-        update_rtsp
-    fi
-}
-
-function update_ustreamer {
-    local sm_version us_version
-    sm_version="$(cd bin/ustreamer && git describe --always --tags | sed 's/^v//')"
-    us_version="$(bin/ustreamer/ustreamer -v)"
-    echo -en "Checking ustreamer Version ${sm_version} ... \r"
-    if [ "${sm_version}" == "${us_version}" ]; then
-        echo -e "Checking ustreamer Version ${us_version} ... [SKIPPED]"
-        echo -e "\t==> Version match, no update needed."
-    else
-        echo -e "Checking ustreamer Version ${sm_version} ... [UPDATE]"
-        echo -e "\t==> Version (${us_version}) mismatch, update needed."
-        pushd bin/ &> /dev/null || exit 1
-        make ustreamer
-        popd &> /dev/null || exit 1
-        echo -e "Ustreamer Update ... [OK]"
-    fi
-}
-
-function update_rtsp {
-    local dl_version rtsp_version
-    dl_version="$(cat bin/rtsp-simple-server/version)"
-    rtsp_version="$(bin/rtsp-simple-server/rtsp-simple-server --version)"
-    echo -en "Checking rtsp-simple-server Version ... \r"
-    if [ "${dl_version}" == "${rtsp_version}" ]; then
-        echo -e "Checking rtsp-simple-server Version ${dl_version} ... [SKIPPED]"
-        echo -e "\t==> Version match, no update needed."
-    else
-        echo -e "Checking rtsp-simple-server Version ... [UPDATE]"
-        echo -e "\t==> Version (${rtsp_version}) mismatch, update needed."
-        pushd bin/ &> /dev/null || exit 1
-        make rtsp
-        popd &> /dev/null || exit 1
-        echo -e "rtsp-simple-server Update ... [OK]"
-    fi
-}
-
-
-#### MAIN
-install_cleanup_trap
-import_config
-welcome_msg
-stop_webcamd
-uninstall_ustreamer
-uninstall_v4l2rtsp
-uninstall_rtsp2webrtc
-uninstall_go
-copy_service
-copy_logrotate
-copy_raspicam_fix
-sub_init
-build_apps
-start_webcamd
-goodbye_msg
-
-exit 0