diff --git a/seqs/backup.sh b/seqs/backup.sh
index cdba14c..53609ae 100755
--- a/seqs/backup.sh
+++ b/seqs/backup.sh
@@ -1,42 +1,36 @@
 #!/bin/bash
 
-toolName=backup
-toolBin=rsync
+readonly toolName=backup
+readonly toolBin=rsync
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
-APTOPT=
-CONFIG=0
-CONFIG_FILE_NAME="${toolName}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_aptOpt=
+sq_config=0
 
 seq_config() {
-  initSeqConfig -t "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  if [ $? -eq 0 ] ; then
-    CONFIG=1
+  if initSeqConfig -t "${seq_configName:?}" "${seq_configTemplate:?}" ; then
+    sq_config=1
   else
     error -e "Check output for errors"
     # End if no configuration file exists
-    dry || return -1
+    dry || return 1
   fi
 
-  quiet && APTOPT="-y"
+  interactive || sq_aptOpt="-y"
   return 0
 }
 
 step_1_info() { 
   echo "Backup root"
   echoinfo "Essential excludes are provided in the configuration template."
-  echoinfo "($CONFIG_FILE_TEMPLATE)"
+  echoinfo "(${seq_configTemplate})"
 }
 step_1_options() { echo "[ADDITIONAL_EXCLUDES...]"; }
 step_1_alias() { echo "buroot"; }
 step_1() {
   local buTarget="/backup"
-  if [ $CONFIG -eq 0 ] ; then
+  if (( ! sq_config )) ; then
     error -e "Cannot backup root without properly configured excludes"
-    error -e "     (expected config: $seq_configRoot/$CONFIG_FILE_NAME)"
+    error -e "     (expected config: ${seq_configFile})"
   else
     buTarget="$BACKUP_TARGET"
   fi
@@ -49,20 +43,19 @@ step_1() {
 
 step_3_info() { 
   # Backup single directory recursively
-  local opt="[OPTION]"
-  local dir="<DIRECTORY>"
-  local tar="<TARGET>"
-  local exc="[EXCLUDES...]"
+  local opt=
+  local dir=
+  local tar=
+  local exc=
   shift
   if [ "${1:-}" == "-t" ] ; then
     opt=" -t     "
-    tar=
     shift
   fi
   if [ -n "${1:-}" ] ; then
     dir="$1"
     shift
-    if [ -n $tar ] && [ -n "$1" ] ; then
+    if [ -z $opt ] && [ -n "$1" ] ; then
       tar="$1"
       shift
     else
@@ -75,12 +68,13 @@ step_3_info() {
     fi
   fi
   echo     "Backup $opt $dir $tar $exc"
-  echoinfo "        -t  :   Using configuration value as TARGET"
-  echoinfo "                <DIRECTORY> [EXCLUDES...]"
+  echoinfo " -t : Using configuration value as TARGET"
+  echoinfo "      <DIRECTORY> [EXCLUDES...]"
   echoinfo "EXCLUDES path notation starts within $dir"
-  echoinfo "e.g. to exclude $dir/a:"
+  echoinfo " e.g. to exclude $dir/a:"
   echoinfo " $0 budir $dir $tar /a"
 }
+step_3_options() { echo "[OPTION] <DIRECTORY> [TARGET] [EXCLUDES...]"; }
 step_3_alias() { echo "budir"; }
 step_3() {
   local configTarget=0
@@ -119,7 +113,7 @@ step_3() {
   buLog="backup_${buLog}"
   shift
 
-  if [ $configTarget -ne 0 ] && [ $CONFIG -ne 0 ] ; then
+  if [ $configTarget -ne 0 ] && (( sq_config )) ; then
     # Taking target from config
     buTarget=$(echo "$BACKUP_TARGET" | sed 's:/*$::')
   else
@@ -176,7 +170,7 @@ step_100_info() { echo "Install $toolBin"; }
 step_100_alias() { echo "install"; }
 step_100() {
   exe apt update
-  exe apt install $toolBin $APTOPT
+  exe apt install $toolBin ${sq_aptOpt}
 }
 
 checkInstalled() {
@@ -187,6 +181,7 @@ checkInstalled() {
   toolBin="$(command -v $toolBin)"
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
-
diff --git a/seqs/certbot.sh b/seqs/certbot.sh
index 0f50238..646dd08 100755
--- a/seqs/certbot.sh
+++ b/seqs/certbot.sh
@@ -3,21 +3,20 @@
 # Certbot installation and creation supporting Raspbian and Ubuntu.
 # Certificate can be created/updated as "certonly" only.
 
-toolName=certbot
+readonly toolName=certbot
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
-CONFIG=0
-CONFIG_FILE_NAME="${toolName}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_aptOpt=
 
 seq_config() {
-  initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  local confReturn=$?
-  if [ $confReturn -eq 0 ] ; then
-    CONFIG=1
+  if ! initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
+    # End if no configuration file exists
+    dry || return 1
   fi
+  
+  ## Apt cmdline option to suppress user interaction
+  interactive || sq_aptOpt="-y"
+
+  return 0
 }
 
 step_1_info() { echo "Install $toolName for letsencrypt"; }
@@ -41,24 +40,17 @@ step_1() {
 
   echo " [I] Detected OS: $osName $distName"
 
-  local aptOption=
-  if quiet ; then
-    aptOption="-y"
-  else
-    aptOption=""
-  fi
-
   if [ "$osName" == "Ubuntu" ] ; then
     exe apt-get update
-    exe apt-get install software-properties-common $aptOption
+    exe apt-get install software-properties-common ${sq_aptOpt}
     saveReturn $?
-    exe add-apt-repository universe $aptOption
+    exe add-apt-repository universe ${sq_aptOpt}
     saveReturn $?
-    exe add-apt-repository ppa:certbot/certbot $aptOption
+    exe add-apt-repository ppa:certbot/certbot ${sq_aptOpt}
     saveReturn $?
     exe apt-get update
 
-    exe apt-get install $toolName $aptOption
+    exe apt-get install $toolName ${sq_aptOpt}
     saveReturn $?
     endReturn "$toolName installation for $osName failed"
   elif [ "$osName" == "Raspbian" ] ; then
@@ -71,13 +63,15 @@ step_1() {
 step_2_info() { echo "Create or update letsencrypt certificate"; }
 step_2_alias() { echo "update"; }
 step_2() {
-  endCheckEmpty CERTBOT_DOMAINS "No domain list found. Check configuration"
-  endCheckEmpty CERTBOT_WEBROOT "Invalid web root. Check configuration"
-  endCheckEmpty CERTBOT_MAIL "Invalid mail address. Check configuration"
+  endIfEmpty CERTBOT_DOMAINS "No domain list found. Check configuration"
+  endIfEmpty CERTBOT_WEBROOT "Invalid web root. Check configuration"
+  endIfEmpty CERTBOT_MAIL "Invalid mail address. Check configuration"
 
   exe certbot certonly --webroot -w "$CERTBOT_WEBROOT" --rsa-key-size 4096 --expand --agree-tos \
     -m "$CERTBOT_MAIL" ${CERTBOT_DOMAINS[@]/#/-d }
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/debianrpi.sh b/seqs/debianrpi.sh
index 55b7d40..f0dd543 100755
--- a/seqs/debianrpi.sh
+++ b/seqs/debianrpi.sh
@@ -1,11 +1,11 @@
 #!/bin/bash
 
 #toolName=mytool
-toolDownSite="https://raspi.debian.net/tested-images"
+readonly toolDownSite="https://raspi.debian.net/tested-images"
 toolDownUrl=
 toolDownFile=
 
-toolEssentialDeps="vim bash-completion man-db locales wget"
+readonly toolEssentialDeps="vim bash-completion man-db locales wget"
 
 SDDEV=
 SDBOOT=
@@ -14,25 +14,18 @@ SDROOT=
 SDROOTDEV=
 SDROOTPUUID=
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
-APTOPT=
-CONFIG=0
-SCRIPT_NAME=$(basename -- $0)
-SCRIPT_NAME=${SCRIPT_NAME%%.*}
-CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_aptOpt=
 
 seq_config() {
-  quiet && APTOPT="-y"
+  interactive || sq_aptOpt="-y"
   return 0
 }
 
 step_1_info() {
-  echo "Download latest xz-compressed image [IMAGE FILE URL] [SD CARD DEVICE]"
+  echo "Download latest xz-compressed image"
   echoinfo "$toolDownSite"
 }
+step_1_options() { echo "[IMAGE FILE URL] [SD CARD DEVICE]"; }
 step_1_alias() { echo "install"; }
 step_1() {
   shift
@@ -71,7 +64,8 @@ step_1() {
   endReturn -o $? "SHA256 checksum error"
 }
 
-step_2_info() { echo "Write image to device [DEVICE]"; }
+step_2_info() { echo "Write image to device"; }
+step_2_options() { echo "[DEVICE]"; }
 step_2() {
   shift
   if [ -z "$SDDEV" ] ; then
@@ -130,8 +124,8 @@ step_10() {
   fi
 
   exe apt update
-  exe apt full-upgrade $APTOPT
-  exe apt install $toolEssentialDeps $APTOPT
+  exe apt full-upgrade ${sq_aptOpt}
+  exe apt install $toolEssentialDeps ${sq_aptOpt}
 }
 
 step_11_info() { echo "Set timezone"; }
@@ -156,12 +150,13 @@ step_12() {
 }
 localesConfigLoc="/etc/locale.gen"
 
-step_14_info() { echo "Change hostname [HOSTNAME]"; }
+step_14_info() { echo "Change hostname"; }
+step_14_options() { echo "[HOSTNAME]"; }
 step_14_alias() { echo "hostname"; }
 step_14() {
   shift
   local localHostname=$1
-  endCheckEmpty localHostname "No hostname provided"
+  endIfEmpty localHostname "No hostname provided"
   if [ $(grep -r "$localHostname" "$hostsLoc">>/dev/null; echo $?) -eq 0 ] ; then
     info "Hostname $localHostname already defined"
     return 0
@@ -175,7 +170,7 @@ hostsLoc="/etc/hosts"
 step_16_info() { echo "Install cifs mounting requirements"; }
 step_16_alias() { echo "cifs"; }
 step_16() {
-  exe apt install cifs-utils $APTOPT
+  exe apt install cifs-utils ${sq_aptOpt}
 }
 
 step_17_info() { echo "Cifs notes"; }
@@ -296,5 +291,8 @@ read_sd_dev() {
 }
 SDBOOTPARTNO=1
 SDROOTPARTNO=2
+
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/downloader.sh b/seqs/downloader.sh
index f68f849..53e9905 100755
--- a/seqs/downloader.sh
+++ b/seqs/downloader.sh
@@ -1,26 +1,18 @@
 #!/bin/bash
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >>/dev/null 2>&1 && pwd)"
-APTOPT=
-CONFIG=0
-SCRIPT_NAME=$(basename -- $0)
-SCRIPT_NAME=${SCRIPT_NAME%%.*}
-CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_aptOpt=
 
 seq_config() {
   checkVpn
 
-  initSeqConfig -t "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  if [ $? -eq 0 ] ; then
-    CONFIG=1
-  else
+  if ! initSeqConfig -t "${seq_configName:?}" "${seq_configTemplate:?}" ; then
     # End if no configuration file exists
-    dry || return -1
+    dry || return 1
   fi
-  quiet && APTOPT="-y"
+
+  ## Apt cmdline option to suppress user interaction
+  interactive || sq_aptOpt="-y"
+
   return 0
 }
 
@@ -227,7 +219,7 @@ step_11() {
   exe curl -sL "$lidarrUrl" -o /tmp/Lidarr.tgz
   endReturn -o "Download failed"
 
-  exe apt install $lidarrDeps $APTOPT
+  exe apt install $lidarrDeps ${sq_aptOpt}
 
   exe tar xvzf /tmp/Lidarr.tgz -C "${DLD_DIR}/"
   exe mv "${DLD_DIR}/Lidarr" "${DLD_DIR}/lidarr"
@@ -273,7 +265,7 @@ step_13() {
   local bazarrDeps="python3-pip python3-distutils python3-venv ffmpeg"
   #local bazarrDeps+=" libxml2-dev libxslt1-dev python3-libxml2 python3-lxml libatlas-base-dev"
 
-  exe apt install $bazarrDeps $APTOPT
+  exe apt install $bazarrDeps ${sq_aptOpt}
 }
 
 step_14_info() { echo "Install bazarr"; }
@@ -352,8 +344,8 @@ step_16() {
 
   exe mkdir -p "$buildPath"
   exe cd "$buildPath"
-  exe apt build-dep unrar-nonfree $APTOPT
-  exe apt source -b unrar-nonfree $APTOPT
+  exe apt build-dep unrar-nonfree ${sq_aptOpt}
+  exe apt source -b unrar-nonfree ${sq_aptOpt}
   endReturn -o $? "unrar-nonfree build failed ($buildPath left untouched)"
   exe dpkg -i unrar*.deb
   endReturn -o $? "unrar-nonfree install failed ($buildPath left untouched)"
@@ -370,7 +362,7 @@ step_17() {
     return 0
   fi
   exe apt update
-  exe apt install dante-server $APTOPT
+  exe apt install dante-server ${sq_aptOpt}
   exe systemctl stop danted.service
   exe systemctl disable danted.service
 }
@@ -606,5 +598,7 @@ checkVpn() {
   fi
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/ebackup.sh b/seqs/ebackup.sh
index b575253..ca9e935 100755
--- a/seqs/ebackup.sh
+++ b/seqs/ebackup.sh
@@ -27,16 +27,15 @@ seq_config() {
 step_1_info() { 
   echo -n "Backup "
   if contextHelp ; then
-    echo -n "selected profile"
+    echo "selected profile"
   else
-    echo -n "profile: $seq_profileName"
+    echo "profile: $seq_profileName"
   fi
-  echo " [OPTIONS] [full|incremental]"
   echoinfo " [OPTIONS]"
   echoinfo "   --no-purge, -n : Do not purge old backups after backup"
   echoinfo "   --allow-source-mismatch, -a : see ${toolName:-} help"
-
 }
+step_1_options() { echo '[OPTIONS] [full|incremental]'; }
 step_1_alias() { echo "backup"; }
 step_1() {
   shift
@@ -109,12 +108,13 @@ step_3() {
 }
 
 step_5_info() { 
-  echo "Restore [OPTIONS] <LOCAL TARGET> [TARGET]"
+  echo "Restore files from backup"
   echoinfo " [OPTIONS]"
   echoinfo "   --file-to-restore, -f <RELPATH> : Relative path within backup"
   echoinfo "                                     (file or folder)"
   echoinfo "   --time, -t <TIME> : Age of file to be restored"
 }
+step_5_options() { echo '[OPTIONS] <LOCAL TARGET> [TARGET]'; }
 step_5_alias() { echo "restore"; }
 step_5() {
   shift
@@ -153,7 +153,8 @@ step_5() {
   unsetPassphrase
 }
 
-step_7_info() { echo "Purge old backups [TARGET]"; }
+step_7_info() { echo "Purge old backups"; }
+step_7_options() { echo '[TARGET]'; }
 step_7_alias() { echo "purge"; }
 step_7() {
   shift
@@ -185,13 +186,14 @@ step_20_info() {
   local ebuTarget="${EBU_TARGET:-}"
   [ ! -z "${1:-}" ] && ebuTarget="$1"
   if contextHelp; then
-    echo "Status of (profile) [TARGET]"
+    echo "Status of (profile)"
   elif [ -n "${1:-}" ]; then
     echo "Status of target: $ebuTarget"
   else
     echo "Status of profile \"$seq_profileName\" target: $ebuTarget"
   fi
 }
+step_20_options() { echo '[TARGET]'; }
 step_20_alias() { echo 'status'; }
 step_20() {
   shift
@@ -202,7 +204,8 @@ step_20() {
   exe $toolBin collection-status "$ebuTarget"
 }
 
-step_22_info() { echo "List backup files [TARGET]"; }
+step_22_info() { echo "List backup files"; }
+step_22_options() { echo '[TARGET]'; }
 step_22_alias() { echo 'list'; }
 step_22() {
   shift
@@ -230,6 +233,7 @@ step_70_info() {
   echoinfo "   --remove, -r : remove cron file"
 }
 step_70_alias() { echo 'cron'; }
+step_70_options() { echo '[OPTIONS]'; }
 step_70() {
   shift
   local arg
diff --git a/seqs/ejabberd.sh b/seqs/ejabberd.sh
index 9390ecb..315c1a8 100755
--- a/seqs/ejabberd.sh
+++ b/seqs/ejabberd.sh
@@ -114,7 +114,7 @@ step_14() {
 readDomain() {
   if [ "$myDomain" == "" ] ; then
     read -p "Enter your domain: " myDomain
-    endCheckEmpty myDomain "$toolName domain"
+    endIfEmpty myDomain "$toolName domain"
   fi
 }
 
@@ -123,7 +123,7 @@ readUser() {
   if [ "$myUser" == "" ] ; then
     read -p "Enter user name: " myUser
     echo
-    endCheckEmpty myUser "$toolName user name"
+    endIfEmpty myUser "$toolName user name"
   fi
 }
 
@@ -138,7 +138,7 @@ readUserPass() {
       echo "[ERROR] Passwords don't match"
       return 1;
     fi
-    endCheckEmpty myPass "$toolName user password"
+    endIfEmpty myPass "$toolName user password"
   fi
 }
 
diff --git a/seqs/element-web.sh b/seqs/element-web.sh
index 328b700..ff0581b 100755
--- a/seqs/element-web.sh
+++ b/seqs/element-web.sh
@@ -1,27 +1,21 @@
 #!/bin/bash
 
-toolName=element-web
-latestUrl="https://api.github.com/repos/vector-im/element-web/releases/latest"
+readonly toolName=element-web
+readonly latestUrl="https://api.github.com/repos/vector-im/element-web/releases/latest"
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
-CONFIG=0
-CONFIG_FILE_NAME="${toolName}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_config=0
 
 seq_config() {
-  initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  if [ $? -eq 0 ] ; then
+  if initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
     echo "     ${toolName} path:   ${ELEMENT_WEB_LOC}"
     echo "     ${toolName} backup: ${ELEMENT_WEB_BACKUP}"
-    CONFIG=1
+    sq_config=1
   fi
 }
 
-step_18_info() { echo "Check for updates"; }
-step_18_alias() { echo "updatecheck"; }
-step_18() {
+step_1_info() { echo "Check for updates"; }
+step_1_alias() { echo "updatecheck"; }
+step_1() {
   shift
   local latestVersion=
   if [ ! -z "${1:-}" ] ; then
@@ -30,8 +24,8 @@ step_18() {
     latestVersion=$(curl --silent "$latestUrl" | grep -Po '"tag_name": "v\K.*?(?=")')
   fi
 
-  local isInstalled=$(grep -E "${latestVersion}" "${ELEMENT_WEB_LOC}/version" >>/dev/null && echo "1" || echo "0")
-  if [ $isInstalled -eq 1 ] ; then
+  local isInstalled=$(grep -E "${latestVersion}" "${ELEMENT_WEB_LOC:-}/version" >>/dev/null 2>&1 && echo "1" || echo "0")
+  if (( isInstalled )) ; then
     echo " [I] Version $latestVersion is already installed"
     return 1
   else
@@ -42,18 +36,19 @@ step_18() {
 
 
 step_20_info() { 
-  echo -n "Create a backup [ELEMENT WEB ROOT]"
-  if [ $CONFIG -ne 0 ] ; then
+  echo -n "Create a backup"
+  if (( sq_config )) ; then
     echo " at $ELEMENT_WEB_BACKUP"
   else
     echo
   fi
 }
+step_20_options() { echo "[ELEMENT WEB ROOT]"; }
 step_20_alias() { echo "backup"; }
 step_20() {
   shift
   local tempRoot=
-  if [ $CONFIG -eq 0 ] ; then
+  if (( ! sq_config )) ; then
     error -e "No configuration file found"
     return 1
   fi
@@ -79,12 +74,13 @@ step_22_info() {
     if ! contextHelp ; then
       echo ": $(curl --silent "$latestUrl" | grep -Po '"tag_name": "\K.*?(?=")')"
     else
-      echo " [CUSTOM VERSION]"
+      echo
     fi
   else
     echo "Get version $1 from github"
   fi
 }
+step_22_options() { echo "[CUSTOM VERSION]"; }
 step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
@@ -160,5 +156,7 @@ step_24() {
   exe rm -rf "$tempDown"
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/friendica.sh b/seqs/friendica.sh
index 0ef9984..6520d85 100755
--- a/seqs/friendica.sh
+++ b/seqs/friendica.sh
@@ -15,7 +15,7 @@ seq_config() {
 step_20_info() {
   shift
   echo -n "Create a backup"
-  if [ $sq_config -ne 0 ] ; then
+  if (( sq_config )) ; then
     echo " at $FR_BACKUP"
   else
     echo
@@ -26,7 +26,7 @@ step_20_alias() { echo "backup"; }
 step_20() {
   shift
   local tempRoot=
-  if [ $sq_config -eq 0 ] ; then
+  if (( ! sq_config )) ; then
     error -e "No configuration file found"
     return 1
   fi
@@ -61,12 +61,13 @@ step_22_info() {
     if ! contextHelp ; then
       echo ": $(curl --silent "$latestUrl" | grep -Po '"tag_name": "\K.*?(?=")')"
     else
-      echo " [CUSTOM VERSION]"
+      echo
     fi
   else
     echo "Get version $1 from github"
   fi
 }
+step_22_options() { echo "[CUSTOM VERSION]"; }
 step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
diff --git a/seqs/gitea.sh b/seqs/gitea.sh
index cf1c80d..1870dc8 100755
--- a/seqs/gitea.sh
+++ b/seqs/gitea.sh
@@ -3,42 +3,27 @@
 #
 ## Installation of self hosted git service Gitea
 
-toolName="gitea"
-# Get script working directory
-# (when called from a different directory)
-WDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >>/dev/null 2>&1 && pwd)"
-APTOPT=
-CONFIG=0
-SCRIPT_FILE=$(basename -- $0)
-SCRIPT_NAME=${SCRIPT_FILE%%.*}
-CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+readonly toolName="gitea"
+readonly giteaLatestUrl="https://api.github.com/repos/go-gitea/gitea/releases/latest"
+readonly giteaVersion=$(curl --silent "$giteaLatestUrl" | grep -Po '"tag_name": "v\K.*?(?=")')
+readonly giteaDir="/usr/local/bin"
+readonly giteaServiceLoc="/etc/systemd/system/gitea.service"
+readonly giteaLogDir="/var/log/gitea"
+readonly giteaDownFile="/tmp/giteaDown"
+readonly giteaUser="git"
 
-giteaLatestUrl="https://api.github.com/repos/go-gitea/gitea/releases/latest"
-giteaVersion=$(curl --silent "$giteaLatestUrl" | grep -Po '"tag_name": "v\K.*?(?=")')
 giteaArch=
 giteaDownloadEval='https://dl.gitea.io/gitea/${giteaVersion}/gitea-${giteaVersion}-linux-${giteaArch}'
 giteaDownload=$(eval echo $giteaDownloadEval)
-giteaDir="/usr/local/bin"
-giteaServiceLoc="/etc/systemd/system/gitea.service"
-giteaLogDir="/var/log/gitea"
 giteaIniLoc=
-giteaDownFile="/tmp/giteaDown"
-giteaUser="git"
 versionNow=
 
 seq_config() {
-  initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  if [ $? -eq 0 ] ; then
-    CONFIG=1
-  else
+  if ! initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
     # End if no configuration file exists
-    dry || return -1
+    dry || return 1
   fi
 
-  ## Apt cmdline option to suppress user interaction
-  quiet && APTOPT="-y"
-
   if [ -z $giteaVersion ] ; then
     error -e "Couldn't determine latest version of $toolName"
   fi
@@ -60,12 +45,13 @@ seq_config() {
 }
 
 checkArchitecture() {
+  [ -n "$giteaArch" ] && return 0
   [ ! -z "$(command -v dpkg)" ] && giteaArch=$(dpkg --print-architecture)
   case $giteaArch in
     armhf)
       giteaArch="arm-6";;
   esac
-  giteaDownload=$(eval echo $giteaDownloadEval)
+  giteaDownload="$(eval echo $giteaDownloadEval)"
 }
 
 step_1_info() { echo "Updating apt"; }
@@ -75,14 +61,12 @@ step_1() {
 }
 
 step_2_info() {
-  [ -z "$giteaArch" ] && checkArchitecture 
+  checkArchitecture 
   echo "Downloading $toolName to user home from:"
   echoinfo "$giteaDownload"
 }
 step_2() {
   exe wget -O "$giteaDownFile" $giteaDownload
-  saveReturn $?
-  endReturn 
 }
 
 step_3_info() { echo "Adding user for $toolName ($giteaUser)"; }
@@ -95,8 +79,6 @@ step_3() {
     --disabled-password \
     --home "$SEQ_GITEA_HOME_DIR" \
     "$SEQ_GITEA_USER"
-  saveReturn $?
-  endReturn 
 }
 
 step_4_info() { echo "Create required directory structure"; }
@@ -108,9 +90,9 @@ step_4() {
   exe chmod 770 $SEQ_GITEA_CONF_DIR
   info "Creating $giteaLogDir"
   exe install -g $SEQ_GITEA_USER -m 770 -d "$giteaLogDir"
-  sqr::echo -n "Copying gitea to global location and making it executable..."
-  exe install -b -m 755 -T "$giteaDownFile" "$SEQ_GITEA_BIN_LOC" && sqr::echo "ok"
-  endReturn "Failed to install $SEQ_GITEA_BIN_LOC"
+  info -n "Copying gitea to global location and making it executable..."
+  exe install -b -m 755 -T "$giteaDownFile" "$SEQ_GITEA_BIN_LOC" && info -d "ok"
+  endReturn -o $? "Failed to install $SEQ_GITEA_BIN_LOC"
 }
 
 step_5_info() { echo "Creating systemd service"; }
@@ -158,7 +140,7 @@ NOTES_END
 
 step_10_info() { echo "Create mysql database for $toolName"; }
 step_10() {
-  exe "$WDIR/mysql.sh" -qq createdb --charset utf8mb4
+  exe "${seq_origin}/mysql.sh" -qq createdb --charset utf8mb4
 }
 
 step_12_info() { 
@@ -175,7 +157,7 @@ step_12_info() {
 }
 step_12_alias() { echo "upgrade"; }
 step_12() {
-  endCheckEmpty versionNow "Please install $toolName first"
+  endIfEmpty versionNow "Please install $toolName first"
   exe wget -O "$giteaDownFile" $giteaDownload
   endReturn -o $? "Download failed"
 
@@ -204,5 +186,7 @@ step_22() {
   exe vi "$giteaIniLoc"
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/ldap.sh b/seqs/ldap.sh
index de93beb..089e33e 100755
--- a/seqs/ldap.sh
+++ b/seqs/ldap.sh
@@ -1,29 +1,29 @@
 #!/bin/bash
 
-toolName="ldap"
-toolDaemon="slapd"
-toolDeps="$toolDaemon ldap-utils"
-toolUser="openldap"
+readonly toolName="ldap"
+readonly toolDaemon="slapd"
+readonly toolDeps="$toolDaemon ldap-utils"
+readonly toolUser="openldap"
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
-CONFIG=0
-CONFIG_FILE_NAME="${toolName}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_aptOpt=
 
 seq_config() {
-  initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  if [ $? -eq 0 ] ; then
-    CONFIG=1
+  if ! initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
+    # End if no configuration file exists
+    dry || return 1
   fi
+  
+  ## Apt cmdline option to suppress user interaction
+  interactive || sq_aptOpt="-y"
+
+  return 0
 }
 
 step_1_info() { echo "$toolName installation"; }
 step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
-  exe apt install $toolDeps
+  exe apt install $toolDeps ${sq_aptOpt}
 }
 
 step_2_info() { echo "Configuration of $toolName"; }
@@ -161,7 +161,8 @@ E0F
 NOTES_EOF
 }
 
-step_100_info() { echo "Add group <GROUP NAME> <USER ID>"; }
+step_100_info() { echo "Add group"; }
+step_100_options() { echo "<GROUP NAME> <USER ID>"; }
 step_100_alias() { echo "addgroup"; }
 step_100() {
   shift
@@ -177,7 +178,8 @@ description: Created by $0
 member: \${memberDn}
 "
 
-step_102_info() { echo "Add user <USER ID> <USER NAME> <USER LASTNAME> <UIDNUMBER> <USER EMAIL> [USER GID]"; }
+step_102_info() { echo "Add user"; }
+step_102_options() { echo "<USER ID> <USER NAME> <USER LASTNAME> <UIDNUMBER> <USER EMAIL> [USER GID]"; }
 step_102_alias() { echo "adduser"; }
 step_102() {
   shift
@@ -214,7 +216,8 @@ objectClass: person
 loginShell: /bin/bash
 "
 
-step_103_info() { echo "(re)Set passwort for <USER>"; }
+step_103_info() { echo "(re)Set passwort for user"; }
+step_103_options() { echo "<USER>"; }
 step_103_alias() { echo "passwd"; }
 step_103() {
   shift
@@ -230,7 +233,8 @@ step_103() {
   exe ldappasswd -H ldapi:/// -x -D "cn=admin,$LDAP_DC" -W -S "uid=$userId,$LDAP_OU_USERS,$LDAP_DC"
 }
 
-step_105_info() { echo "Adding <USER ID> to existing group <GROUP NAME>"; }
+step_105_info() { echo "Adding user to existing group"; }
+step_105_options() { echo "<USER ID> <GROUP NAME>"; }
 step_105_alias() { echo "user2group"; }
 step_105() {
   shift
@@ -265,7 +269,8 @@ delete: member
 member:
 "
 
-step_107_info() { echo "Removing <USER ID> from existing group <GROUP NAME>"; }
+step_107_info() { echo "Removing user from existing group"; }
+step_107_options() { echo "<USER ID> <GROUP NAME>"; }
 step_107_alias() { echo "rmusergroup"; }
 step_107() {
   shift
@@ -299,7 +304,8 @@ delete: member
 member: uid=\$userId,\$LDAP_OU_USERS,\$LDAP_DC
 "
 
-step_110_info() { echo "Remove group <GROUP NAME>"; }
+step_110_info() { echo "Remove group"; }
+step_110_options() { echo "<GROUP NAME>"; }
 step_110_alias() { echo "rmgroup"; }
 step_110() {
   shift
@@ -314,7 +320,8 @@ rmGroup="dn: cn=\${groupName},\${LDAP_OU_GROUPS},\${LDAP_DC}
 changetype: delete
 "
 
-step_112_info() { echo "Remove user <USER ID>"; }
+step_112_info() { echo "Remove user"; }
+step_112_options() { echo "<USER ID>"; }
 step_112_alias() { echo "rmuser"; }
 step_112() {
   shift
@@ -329,7 +336,8 @@ rmUser="dn: uid=\${userName},\${LDAP_OU_USERS},\${LDAP_DC}
 changetype: delete
 "
 
-step_200_info() { echo "List available groups <ADDITONAL ATTRIBUTES...>"; }
+step_200_info() { echo "List available groups"; }
+step_200_options() { echo "<ADDITONAL ATTRIBUTES...>"; }
 step_200_alias() { echo "listgroups"; }
 step_200() {
   shift
@@ -337,7 +345,8 @@ step_200() {
   exe ldapsearch -x -LLL -H ldap:/// -b ${LDAP_OU_GROUPS},${LDAP_DC} dn gidNumber $*
 }
 
-step_202_info() { echo "List available users <ADDITONAL ATTRIBUTES...>"; }
+step_202_info() { echo "List available users"; }
+step_200_options() { echo "<ADDITONAL ATTRIBUTES...>"; }
 step_202_alias() { echo "listusers"; }
 step_202() {
   shift
@@ -364,5 +373,7 @@ variable2LdifEcho() {
   echo "$tempLdif"
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/matrix.sh b/seqs/matrix.sh
index a0ef3b9..38cf422 100755
--- a/seqs/matrix.sh
+++ b/seqs/matrix.sh
@@ -525,15 +525,15 @@ MIGRATE_END
 readDatabaseInfos() {
   if [ "$postgresDb" == "" ] ; then
     read -p "Enter postgres database name: " postgresDb
-    endCheckEmpty postgresDb "database"
+    endIfEmpty postgresDb "database"
   fi
   if [ "$postgresUser" == "" ] ; then
     read -p "Enter postgres user name: " postgresUser
-    endCheckEmpty postgresUser "user name"
+    endIfEmpty postgresUser "user name"
   fi
   if [ "$postgresPass" == "" ] ; then
     read -s -p "Enter postgres password: " postgresPass
-    endCheckEmpty postgresPass "password"
+    endIfEmpty postgresPass "password"
   fi
   echo
 }
diff --git a/seqs/mayan-edms.sh b/seqs/mayan-edms.sh
index 447ae78..42747f4 100755
--- a/seqs/mayan-edms.sh
+++ b/seqs/mayan-edms.sh
@@ -209,15 +209,15 @@ step_22() {
 readDatabaseInfos() {
   if [ -z "$postgresDb" ] ; then
     read -p "Enter postgres database name: " postgresDb
-    endCheckEmpty postgresDb "database"
+    endIfEmpty postgresDb "database"
   fi
   if [ -z "$postgresUser" ] ; then
     read -p "Enter postgres user name: " postgresUser
-    endCheckEmpty postgresUser "user name"
+    endIfEmpty postgresUser "user name"
   fi
   if [ -z "$postgresPass" ] ; then
     read -s -p "Enter postgres password: " postgresPass
-    endCheckEmpty postgresPass "password"
+    endIfEmpty postgresPass "password"
   fi
   info
 }
diff --git a/seqs/nextcloud.sh b/seqs/nextcloud.sh
index adabb71..48d2ecc 100755
--- a/seqs/nextcloud.sh
+++ b/seqs/nextcloud.sh
@@ -3,20 +3,12 @@
 # Dependency to other seqs
 # - mysql.sh (soft; Missing informational output) 
 
-toolName="nextcloud"
+readonly toolName="nextcloud"
 localOcc=("echo" "occ not found!")
-
-# Get script working directory
-# (when called from a different directory)
-sq_dir="$( cd "$( dirname -- "$(realpath "${BASH_SOURCE[0]}")")" >>/dev/null 2>&1 && pwd )"
 sq_config=0
-sq_configFileName="${toolName}.cfg"
-sq_configFileTemplate="$sq_dir/${sq_configFileName}.example"
 
 seq_config() {
-  ## or to use sequencer api:
-  initSeqConfig "$sq_configFileName" "$sq_configFileTemplate"
-  if [ $? -eq 0 ] ; then
+  if initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
     sq_config=1
   fi
   localOcc=( sudo -u $sc_ncServerUser php "$(escpath "$sc_ncInstallDir/occ")" )
@@ -34,7 +26,7 @@ step_1() {
 step_20_info() { echo "Upgrade $toolName on command line to latest version of selected release channel"; }
 step_20_alias() { echo "upgrade"; }
 step_20() {
-  if [ $sq_config -eq 0 ] ; then
+  if (( ! sq_config )) ; then
     error -e "No configuration found to determine installation directory"
     return 1
   fi
@@ -64,9 +56,9 @@ step_102() {
 
   if [ -z $1 ] ; then
     error -e "No database provided"
-    if [ -f "${sq_dir}/mysql.sh" ] ; then
+    if [ -f "${seq_origin}/mysql.sh" ] ; then
       echo " [I] Available mysql databases:"
-      "${sq_dir}/mysql.sh" -qq listdb
+      "${seq_origin}/mysql.sh" -qq listdb
     fi
     return 1
   else
@@ -147,5 +139,7 @@ occ config:app:set preview jpeg_quality --value="60"
 NOTES_END
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/postgres.sh b/seqs/postgres.sh
index 49bfc59..dfd2775 100755
--- a/seqs/postgres.sh
+++ b/seqs/postgres.sh
@@ -160,15 +160,15 @@ step_24() {
 readDatabaseInfos() {
   if [ "$postgresDb" == "" ] ; then
     read -p "Enter postgres database name: " postgresDb
-    endCheckEmpty postgresDb "database"
+    endIfEmpty postgresDb "database"
   fi
   if [ "$postgresUser" == "" ] ; then
     read -p "Enter postgres user name: " postgresUser
-    endCheckEmpty postgresUser "user name"
+    endIfEmpty postgresUser "user name"
   fi
   if [ "$postgresPass" == "" ] ; then
     read -s -p "Enter postgres password: " postgresPass
-    endCheckEmpty postgresPass "password"
+    endIfEmpty postgresPass "password"
   fi
   echo
 }
diff --git a/seqs/pyload.sh b/seqs/pyload.sh
index 909cf89..1402488 100755
--- a/seqs/pyload.sh
+++ b/seqs/pyload.sh
@@ -1,31 +1,22 @@
 #!/bin/bash
-toolName="pyload"
-toolBranch="stable"
-toolDownload="https://github.com/pyload/pyload.git"
-toolDeps="git liblept5 python python-crypto python-pycurl python-imaging python-sleekxmpp tesseract-ocr zip unzip python-openssl libmozjs-24-bin"
+readonly toolName="pyload"
+readonly toolBranch="stable"
+readonly toolDownload="https://github.com/pyload/pyload.git"
+readonly toolDeps="git liblept5 python python-crypto python-pycurl python-imaging python-sleekxmpp tesseract-ocr zip unzip python-openssl libmozjs-24-bin"
 # python-cryptography shall be implemented in future releases and replace pyhton-crypto
-toolDepsDebian="sudo git python-crypto python-pycurl python-pil python-sleekxmpp tesseract-ocr zip unzip pyhton-openssl libmozjs-60-dev"
-toolBuildDeps="rar unrar-nonfree"
+readonly toolDepsDebian="sudo git python-crypto python-pycurl python-pil python-sleekxmpp tesseract-ocr zip unzip pyhton-openssl libmozjs-60-dev"
+readonly toolBuildDeps="rar unrar-nonfree"
 
-# Get script working directory
-# (when called from a different directory)
-WDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >>/dev/null 2>&1 && pwd)"
-APTOPT=
-CONFIG=0
-SCRIPT_NAME=$(basename -- $0)
-SCRIPT_NAME=${SCRIPT_NAME%%.*}
-CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
-CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
+sq_aptOpt=
 
 seq_config() {
-  initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
-  if [ $? -eq 0 ] ; then
-    CONFIG=1
-  else
+  if ! initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
     # End if no configuration file exists
     dry || return 1
   fi
-  quiet && APTOPT="-y"
+
+  interactive || sq_aptOpt="-y"
+  
   return 0
 }
 
@@ -41,7 +32,7 @@ step_1() {
 
 step_2_info() { echo "Install unrar-nonfree from source"; }
 step_2() {
-  exe apt-get build-dep ${toolBuildDeps} $APTOPT
+  exe apt-get build-dep ${toolBuildDeps} ${sq_aptOpt}
   exe cd /tmp
   exe apt-get source -b unrar-nonfree
   saveReturn $?
@@ -69,7 +60,7 @@ step_3() {
       error -e "Unrecognized target"
       return 1;;
   esac
-  exe apt-get install ${lDeps} $APTOPT
+  exe apt-get install ${lDeps} ${sq_aptOpt}
   saveReturn $?
   endReturn
   case "${1:-}" in
@@ -134,5 +125,7 @@ step_10() {
   echo "     Do so manually with: service $toolName start"
 }
 
+# shellcheck disable=SC2034 # Appears unused
 readonly sqr_minVersion=16
+# shellcheck disable=SC1091 # Don't follow this source
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/transmission.sh b/seqs/transmission.sh
index 6cce662..a2ebf44 100755
--- a/seqs/transmission.sh
+++ b/seqs/transmission.sh
@@ -124,7 +124,7 @@ step_52_options() { echo "<TORRENT ID>"; }
 step_52_alias() { echo "info"; }
 step_52() {
   shift
-  endCheckEmpty 1 "Id must not be empty"
+  endIfEmpty 1 "Id must not be empty"
 
   step netrcauth
   color green
diff --git a/seqs/ufw.sh b/seqs/ufw.sh
index bfa5a93..3d342a2 100755
--- a/seqs/ufw.sh
+++ b/seqs/ufw.sh
@@ -73,7 +73,7 @@ step_24() {
   shift
   local destIp=${1:-}
   local ipregex='^[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\/*[0-9]*$'
-  endCheckEmpty destIp "No IP provided"
+  endIfEmpty destIp "No IP provided"
   if [[ ! ${1:-} =~ $ipregex ]]; then
     error "No valid IP provided"
     return 1
diff --git a/sequpgrade.sh b/sequpgrade.sh
index 9143536..0b3f54d 100755
--- a/sequpgrade.sh
+++ b/sequpgrade.sh
@@ -74,6 +74,7 @@ makechanges() {
 
     exe sed ${inplace} 's/"*${*DEFAULT_EDITOR_SYSTEM}*"*/editor/'${sedprint} "${file}"
 
+    exe sed ${inplace} 's/endCheckEmpty/endIfEmpty/'${sedprint} "${file}"
     exe sed ${inplace} 's/^[[:space:]]*step_config/seq_config/'${sedprint} "${file}"
     exe sed ${inplace} 's/^\(step_.*_alias\)()[[:space:]]*{[[:space:]]*ALIAS=/\1() { echo /'${sedprint} "${file}"
     exe sed ${inplace} 's/SEQUENCER_ARGS/sqr_args/'${sedprint} "${file}"