diff --git a/init.sh b/init.sh
index 0c630bd..d12ce28 100755
--- a/init.sh
+++ b/init.sh
@@ -338,14 +338,23 @@ initUpdateConfigOption() {
             for config_file in "$category_dir"/*; do
                 if [ -f "$config_file" ] && [[ ! "$config_file" =~ \.category$ ]]; then
                     if grep -q "^$config_option=" "$config_file"; then
-                        local escaped_value=$(printf '%s\n' "$config_value" | sed -e 's/[\/&]/\\&/g')
+                        # Use SOH (\x01) as the s-command delimiter — it can't appear
+                        # in text-based config values or comments, so no field needs
+                        # to escape the delimiter. The replacement field DOES need
+                        # `&` (whole-match insertion) and `\` (escape char) neutralised
+                        # in BOTH the value AND the comment — comments like
+                        # `# Installation Mode - ...[release|git|local]` previously
+                        # broke the `|`-delimited form with "unknown option to `s'".
+                        local DELIM=$'\x01'
+                        local escaped_value=$(printf '%s' "$config_value" | sed -e 's/[\\&]/\\&/g')
                         local original_line=$(grep "^$config_option=" "$config_file")
                         local comment_part=$(echo "$original_line" | sed -n "s|^$config_option=[^#]*\(#.*\)|\1|p")
+                        local escaped_comment=$(printf '%s' "$comment_part" | sed -e 's/[\\&]/\\&/g')
 
                         if [[ -n "$comment_part" ]]; then
-                            sed -i "s|^$config_option=.*|$config_option=$escaped_value                     $comment_part|" "$config_file"
+                            sed -i "s${DELIM}^$config_option=.*${DELIM}$config_option=$escaped_value                     $escaped_comment${DELIM}" "$config_file"
                         else
-                            sed -i "s|^$config_option=.*|$config_option=$escaped_value|" "$config_file"
+                            sed -i "s${DELIM}^$config_option=.*${DELIM}$config_option=$escaped_value${DELIM}" "$config_file"
                         fi
                         source "$config_file"
                         return 0
@@ -1249,18 +1258,24 @@ commandUpdateConfigOption() {
 			for config_file in "$category_dir"/*; do
 				if [ -f "$config_file" ] && [[ ! "$config_file" =~ \.category$ ]]; then
 					if grep -q "^$config_option=" "$config_file"; then
-						# Escape special characters in the config value to prevent sed issues
-						local escaped_value=$(printf '%s\n' "$config_value" | sed -e 's/[\/&]/\\&/g')
+						# Use SOH (\x01) as the s-command delimiter — it can't appear
+						# in text-based config values or comments, so no field needs
+						# to escape the delimiter. The replacement field DOES need
+						# `&` (whole-match insertion) and `\` (escape char) neutralised
+						# in BOTH the value AND the comment — comments like
+						# `# Installation Mode - ...[release|git|local]` previously
+						# broke the `|`-delimited form with "unknown option to `s'".
+						local DELIM=$'\x01'
+						local escaped_value=$(printf '%s' "$config_value" | sed -e 's/[\\&]/\\&/g')
 						
 						# Extract the comment part first (everything after the first #)
 						local original_line=$(grep "^$config_option=" "$config_file")
 						local comment_part=$(echo "$original_line" | sed -n "s|^$config_option=[^#]*\(#.*\)|\1|p")
-						
-						# Replace the value, preserving comment if it existed
+						local escaped_comment=$(printf '%s' "$comment_part" | sed -e 's/[\\&]/\\&/g')
 						if [[ -n "$comment_part" ]]; then
-							sed -i "s|^$config_option=.*|$config_option=$escaped_value                     $comment_part|" "$config_file"
+							sed -i "s${DELIM}^$config_option=.*${DELIM}$config_option=$escaped_value                     $escaped_comment${DELIM}" "$config_file"
 						else
-							sed -i "s|^$config_option=.*|$config_option=$escaped_value|" "$config_file"
+							sed -i "s${DELIM}^$config_option=.*${DELIM}$config_option=$escaped_value${DELIM}" "$config_file"
 						fi
 						source "$config_file"
 						return 0