diff --git a/CHANGELOG b/CHANGELOG
index 9c917a9..759fd6f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,9 +1,13 @@
-0.4.1 2024-07-14: Fixes "Cancel" option not exiting on package resolution
-                  Fixes whitespace preventing package list matches on "remove all"
+0.5.0 2024-07-18: "Decide in editor" package conflict resolution strategy
+                  Drop pipefail shell option for dash compatibility
+                  Add numerical debug levels to the log utility function
+                  Check for shell option support before setting
+0.4.1 2024-07-14: Fix "Cancel" option not exiting on package resolution
+                  Fix whitespace preventing package list matches on "remove all"
 0.4.0 2024-07-14: "Add/remove all from configuration" resolution strategy
 0.3.1 2024-07-13: Refactor, new docs page, make cache refresh lazier
 0.3.0 2024-07-11: "Enter packages to install/uninstall" resolution strategy
 0.2.1 2024-07-10: Rename package_resolution.sh, document package conflicts
 0.2.0 2024-07-10: Implement "uninstall/instal all" package resolution strategies
 0.1.1 2024-07-07: Handle missing tori.conf and invalid installation root path
-0.1.0 2024-07-07: Added configuration parsing
+0.1.0 2024-07-07: Add configuration parsing
diff --git a/src/configuration.sh b/src/configuration.sh
index a50086f..71a3d5a 100644
--- a/src/configuration.sh
+++ b/src/configuration.sh
@@ -29,12 +29,8 @@ scan_packages() {
   user_packages="$(get_user_packages)"
 
   if [ "$system_packages" = "$user_packages" ]; then
-    log debug "packages match"
+    log debug "Packages match"
   else
-    log debug "packages mismatch"
-    log debug "system:\n$system_packages"
-    log debug "user:\n$user_packages"
-
     log user "System and configuration packages differ"
     resolve_packages
   fi
diff --git a/src/index.sh b/src/index.sh
index 17e9813..f168b74 100644
--- a/src/index.sh
+++ b/src/index.sh
@@ -7,4 +7,5 @@
 . "$TORI_ROOT/src/package/package_conflict_resolution.sh"
 . "$TORI_ROOT/src/package/package_tracking.sh"
 . "$TORI_ROOT/src/package/validate_input_packages.sh"
+. "$TORI_ROOT/src/package/package_conflict_input_parser.sh"
 . "$TORI_ROOT/src/package/update_package_cache.sh"
diff --git a/src/package/package_conflict_input_parser.sh b/src/package/package_conflict_input_parser.sh
new file mode 100644
index 0000000..6c5d9e7
--- /dev/null
+++ b/src/package/package_conflict_input_parser.sh
@@ -0,0 +1,80 @@
+package_conflict_input_parser() {
+  local packages="$1"
+  local conflict_type="$2"
+  local input="$TMP_DIR/package_conflict_input"
+  local input_choices="$TMP_DIR/package_conflict_input_choices"
+  local choices=
+  local packages_to_install=
+  local packages_to_uninstall=
+  local packages_to_track=
+  local packages_to_untrack=
+
+    help_text_generator "$conflict_type" > "$input"
+
+  echo "$packages" | sed 's/ /\n/g' | while read -r package; do
+    echo "skip $package" >> "$input"
+  done
+
+  $EDITOR "$input"
+
+  choices="$(cat "$input" | grep -v '^#' | grep '.')"
+  echo "$choices" > "$input_choices"
+
+  # validation
+  while read -r action package; do
+
+    validate_input_packages "$package"
+
+    if [ "$action" = install ] || [ "$action" = i ]; then
+      packages_to_install="$packages_to_install $package"
+    elif [ "$action" = uninstall ] || [ "$action" = u ]; then
+      packages_to_uninstall="$packages_to_uninstall $package"
+    elif [ "$action" = add ] || [ "$action" = a ]; then
+      packages_to_track="$packages_to_track $package"
+    elif [ "$action" = remove ] || [ "$action" = r ]; then
+      packages_to_untrack="$packages_to_untrack $package"
+    elif [ "$action" = skip ] || [ "$action" = s ]; then
+      log debug "[package_conflict_input_parser] Skipped: $package"
+    else
+      log user "Invalid action provided for $package: $action"
+    fi
+  done < "$input_choices"
+
+  # actual system or configuration change
+  if [ -n "$packages_to_install" ]; then
+    package_manager install "$packages_to_install"
+  fi
+
+  if [ -n "$packages_to_uninstall" ]; then
+    package_manager uninstall "$packages_to_uninstall"
+  fi
+
+  if [ -n "$packages_to_track" ]; then
+    track_packages "$packages_to_track"
+  fi
+
+  if [ -n "$packages_to_untrack" ]; then
+    untrack_packages "$packages_to_untrack"
+  fi
+}
+
+help_text_generator() {
+  local conflict_type="$1"
+
+  echo "# Options:"
+
+  if [ "$conflict_type" == not_installed ]; then
+    echo "#   [i]nstall     Install package to system"
+    echo "#   [r]emove      Remove from configuration"
+  elif [ "$conflict_type" == not_on_configuration ]; then
+    echo "#   [u]ninstall   Uninstall package from system"
+    echo "#   [a]dd         Add to configuration"
+  else
+    debug fatal "Invalid conflict type provided: $conflict_type"
+    return 1
+  fi
+
+  echo "#   [s]kip        Do not take any action"
+  echo -e "\n# Providing just the value between brackets is sufficient"
+  echo -e "# Replace 'skip' below with the desired option\n"
+}
diff --git a/src/package/package_conflict_resolution.sh b/src/package/package_conflict_resolution.sh
index e73a8d6..f2ba8dd 100644
--- a/src/package/package_conflict_resolution.sh
+++ b/src/package/package_conflict_resolution.sh
@@ -57,6 +57,8 @@ not_on_configuration_dialog() {
     if validate_input_packages "$input_packages"; then
       track_packages "$input_packages"
     fi
+  elif [ "$strategy" = 5 ]; then
+    package_conflict_input_parser "$conflicted_packages" 'not_on_configuration'
   else
     log debug "[resolve_packages] Unexpected input: $strategy"
     not_on_configuration_dialog "$conflicted_packages"
@@ -97,6 +99,8 @@ not_installed_dialog() {
     read -r -p "Enter space-separated packages to remove from the configuation: " input_packages
     log debug "Input: input_packages = $input_packages"
     untrack_packages "$input_packages"
+  elif [ "$strategy" = 5 ]; then
+    package_conflict_input_parser "$conflicted_packages" 'not_installed'
   else
     log debug "[resolve_packages] Unexpected input: $strategy"
     not_installed_dialog "$conflicted_packages"
diff --git a/src/package/package_manager.sh b/src/package/package_manager.sh
index 10930ca..f96f132 100644
--- a/src/package/package_manager.sh
+++ b/src/package/package_manager.sh
@@ -8,9 +8,9 @@ package_manager() {
   local args__get_manually_installed
   local args__get_available
 
-  set_opts +
+  set_opts off
   local args__user_args="$2"
-  set_opts -
+  set_opts on
 
   if [ "$OS" = "FreeBSD" ]; then
     manager="pkg"
diff --git a/src/package/package_tracking.sh b/src/package/package_tracking.sh
index f8eeb06..9567efc 100644
--- a/src/package/package_tracking.sh
+++ b/src/package/package_tracking.sh
@@ -9,10 +9,10 @@ track_packages() {
 untrack_packages() {
   local packages="$1"
 
-  log debug "[untrack_packages] Removing packages: $packages"
+  log info "[untrack_packages] Removing packages: $packages"
 
   echo "$packages" | xargs | sed 's/ /\n/g' | while read -r package; do
     sed -i '' "/^[[:space:]]*$package[[:space:]]*$/d" "$CONFIG_ROOT/packages"
-    log debug "[untrack_packages] Executed removal for $package with exit code $?"
+    log info "[untrack_packages] Executed removal for $package with exit code $?"
   done
 }
diff --git a/src/package/update_package_cache.sh b/src/package/update_package_cache.sh
index 1169508..c01b750 100644
--- a/src/package/update_package_cache.sh
+++ b/src/package/update_package_cache.sh
@@ -1,7 +1,7 @@
 update_package_cache() {
-  set_opts +
+  set_opts off
   local argument="$1"
-  set_opts -
+  set_opts on
 
   if [ -f "$PACKAGE_CACHE" ]; then
     local last_update="$(date -r "$PACKAGE_CACHE" +%Y-%m-%d)"
diff --git a/src/utility.sh b/src/utility.sh
index 868ed91..441ed38 100644
--- a/src/utility.sh
+++ b/src/utility.sh
@@ -4,21 +4,73 @@ log() {
   local level="$1"
   local message="$2"
 
-  if [ $level = fatal ]; then
-    printf "[tori] $(date "+%H:%M:%S"): $message\n" 1>&2
-  elif [ $level = user ]; then
-    printf "[tori] $(date "+%H:%M:%S"): $message\n" 1>&2
-  elif [ -n "$DEBUG" ] && [ $level = debug ]; then
-    printf "$(date "+%H:%M:%N") $message\n" 1>&2
+  print_user_message() {
+    echo "[tori] $(date "+%H:%M:%S"): $1" 1>&2
+  }
+
+  print_debug_message() {
+    echo "$(date "+%H:%M:%N") $1" 1>&2
+  }
+
+  if [ -z "$DEBUG" ]; then
+    DEBUG=3
+  elif ! echo "$DEBUG" | grep -q '^[[:number:]]$'; then
+    echo "[log] Warning: DEBUG should always be set to a number. Assuming DEBUG=3 (warn)"
+    DEBUG=3
+  fi
+
+  if [ -z "$DEBUG_DISABLED_WARNING" ] && [ "$DEBUG" -eq 0 ]; then
+    echo "[log] Warning: Setting DEBUG=0 disables all logging except for user messages"
+    echo "      Use a value beween 1 (fatal) and 5 (debug). The default level is 3 (warn)"
+    DEBUG_DISABLED_WARNING=1
+  elif [ "$DEBUG" -gt 5 ]; then
+    echo "[log] Warning: Assuming DEBUG maximum level of 5 (debug) over provided level $DEBUG"
+    DEBUG=5
+  fi
+
+  if [ "$level" = user ]; then
+    print_user_message "$message"
+  elif [ "$DEBUG" -ge 1 ] && [ "$level" = fatal ]; then
+    print_user_message "$message"
+  elif [ "$DEBUG" -ge 2 ] && [ "$level" = error ]; then
+    print_user_message "$message"
+  elif [  "$DEBUG" -ge 3 ] && [ "$level" = warn ]; then
+    print_user_message "$message"
+  elif [ "$DEBUG" -ge 4 ] && [ "$level" = info ]; then
+    print_debug_message "$message"
+  elif [ "$DEBUG" -ge 5 ] && [ "$level" = debug ]; then
+    print_debug_message "$message"
   fi
 }
 
 set_opts() {
-  sign="$1"
+  local target="$1"
+  local sign=
 
-  set "${sign}o" errexit
-  set "${sign}o" nounset
-  set "${sign}o" pipefail
+  if [ "$target" = on ]; then
+    sign='-'
+  elif [ "$target" = off ]; then
+    sign='+'
+  else
+    log fatal "Invalid set_opts target: $target. Expected on or off"
+    return 1
+  fi
+
+  set_opt() {
+    local opt="$1"
+
+    if set -o | grep -q "^$opt[[:space:]]"; then
+      set "${sign}o" "$opt"
+      log debug "[set_opts] Set: $(set -o | grep "^$opt[[:space:]]")"
+    else
+      log fatal "Unsupported shell: no $opt option support"
+      return 1
+    fi
+  }
+
+  set_opt errexit
+  set_opt nounset
+  set_opt pipefail
 }
 
 prepare_directories() {
diff --git a/tori b/tori
index 261c82b..6009659 100755
--- a/tori
+++ b/tori
@@ -2,31 +2,31 @@
 
 main() {
   # paths
-  VERSION="0.4.1 2024-07-14"
+  VERSION="0.5.0 2024-07-18"
   TORI_ROOT="$HOME/.local/share/tori"
   CONFIG_ROOT="$HOME/.config/tori"
   TMP_DIR="/tmp/tori"
   CACHE_DIR="$HOME/.cache/tori"
 
-  check_core_paths
-
-  . "$TORI_ROOT/src/index.sh"
-
-  # state
+  # os-independent state
 
   DEBUG=$DEBUG
+  DEBUG_DISABLED_WARNING=
 
   ## user input
   argument="$1"
   parameter="$2"
 
-  set_opts -
+  # import source
 
-  ## global constants
+  check_core_paths
+  . "$TORI_ROOT/src/index.sh"
+  set_opts on
+
+  ## os-dependent state
   OS="$(get_operating_system)"
   PACKAGE_CACHE="$CACHE_DIR/${OS}_packages.cache"
 
-  ## global state
   base_files=
   bkp_files=
   user_packages=
@@ -69,7 +69,6 @@ check_core_paths() {
     exit 1
   fi
 
-  [ -n "$DEBUG" ] && echo "TORI_ROOT: $TORI_ROOT"
 }
 
 main "$1" "$2"