diff --git a/dotfiles-old/bin/data b/dotfiles-old/bin/data
index 4184a1b..35934d2 100755
--- a/dotfiles-old/bin/data
+++ b/dotfiles-old/bin/data
@@ -3,8 +3,11 @@
 set -e
 
 # depends on https://git.sr.ht/~trinity/utilities (particularly fdivide(1),
-# gt(1), and stris(1)) unless POSIXLY_CORRECT is set (not tested)
+# gt(1), and stris(1))
+# there are issues with the POSIX shell implementations included in this script
+# and particularly with stris
 
+# on Linux only:
 # these files (separated by newlines) will have the current CPU temperature
 # multiplied by $CPU_TEMP_SCALE. this script divides the file contents by scale
 # and displays that temperature (assumed to be in Celsius units)
@@ -28,7 +31,11 @@ INTERVAL=1
 
 # this URL will have in plain text the public IP address from which it was
 # accessed
-PUBLIC_IP_FETCH_URL="http://ifconfig.io/"
+#PUBLIC_IP_FETCH_URL="http://ifconfig.io/"
+#PUBLIC_IP_FETCH_URL="https://ifconfig.io"
+#PUBLIC_IP_FETCH_URL="http://icanhazip.com"
+PUBLIC_IP_FETCH_URL="https://icanhazip.com"
+PUBLIC_IP6_FETCH_URL="$PUBLIC_IP_FETCH_URL"
 
 get_battery_status() {
 	if [ "$(uname)" = "Linux" ]; then
@@ -38,6 +45,15 @@ get_battery_status() {
 		# acpi -a will just print the power adapter status.
 		printf "%b" "$(acpi | awk '{print $4}' | sed 's/,$//') ($(acpi -a))"
 		return
+	elif [ "$(uname)" = "NetBSD" ]; then
+		printf "%b%%" "$(envstat -s acpibat0:charge \
+			| sed 1,2d \
+			| cut -d ':' -f 2 \
+			| awk '{print $1}' \
+			| cut -d '.' -f 1)"
+		return
+	else
+		printf "get_battery_status: unsupported OS"
 	fi
 }
 
@@ -60,6 +76,9 @@ get_cpu_temp() {
 			| cut -d ':' -f 2 \
 			| awk '{print $1}' \
 			| cut -d '.' -f 1)"
+		return
+	else
+		printf "get_cpu_temp: unsupported OS"
 	fi
 }
 
@@ -79,8 +98,19 @@ get_memory_usage() {
 }
 
 get_public_ip() {
-	curl "$PUBLIC_IP_FETCH_URL" --no-progress-meter 2>/dev/null \
-		|| printf "[error fetching IP]\n"
+	PUBLIC_IP4="$(curl "$PUBLIC_IP_FETCH_URL" --no-progress-meter 2>/dev/null \
+		|| printf "-1")"
+	PUBLIC_IP6="$(curl -6 "$PUBLIC_IP6_FETCH_URL" --no-progress-meter 2>/dev/null \
+		|| printf "-1")"
+	if [ "$PUBLIC_IP4" = "-1" ] && [ "$PUBLIC_IP6" = "-1" ]; then
+		printf "[error fetching address]"
+	elif [ "$PUBLIC_IP4" = "-1" ]; then
+		printf "%b" "$PUBLIC_IP6"
+	elif [ "$PUBLIC_IP6" = "-1" ]; then
+		printf "%b" "$PUBLIC_IP4"
+	else
+		printf "%b / %b" "$PUBLIC_IP4" "$PUBLIC_IP6"
+	fi
 	return
 }
 
@@ -90,8 +120,8 @@ PUBLIC_IP="$(get_public_ip)"
 printbar() {
 	printf "%b" "$(get_current_desktop)"
 	printf "%b" "$(date)"
-	#printf "%b" "$DELIMITER"
-	#printf "%b" "BAT: $(get_battery_status)"
+	printf "%b" "$DELIMITER"
+	printf "%b" "BAT: $(get_battery_status)"
 	printf "%b" "$DELIMITER"
 	printf "%b" "CPU: $(get_cpu_temp)"
 	printf "%b" "$DELIMITER"