diff --git a/luci-theme-argon/Makefile b/luci-theme-argon/Makefile
index ab1b92f7..82d92539 100644
--- a/luci-theme-argon/Makefile
+++ b/luci-theme-argon/Makefile
@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 LUCI_TITLE:=Argon Theme
-LUCI_DEPENDS:=+curl +jsonfilter
+LUCI_DEPENDS:=+wget +jsonfilter
 PKG_VERSION:=2.4.3
 PKG_RELEASE:=20250722
 
diff --git a/luci-theme-argon/luasrc/view/themes/argon/sysauth.htm b/luci-theme-argon/luasrc/view/themes/argon/sysauth.htm
index 8e55042f..73d38dbe 100644
--- a/luci-theme-argon/luasrc/view/themes/argon/sysauth.htm
+++ b/luci-theme-argon/luasrc/view/themes/argon/sysauth.htm
@@ -27,7 +27,6 @@
 	local fs		= require "nixio.fs"
 	local nutil		= require "nixio.util"
 	local json		= require "luci.jsonc"
-	local sys		= require "luci.sys"
 	local uci		= require 'luci.model.uci'.cursor()
 
 	-- Fetch Local Background Media
@@ -74,9 +73,9 @@
 		if fs.access("/etc/config/argon") then
 			local online_wallpaper = uci:get_first('argon', 'global', 'online_wallpaper') or (uci:get_first('argon', 'global', 'bing_background') == '1' and 'bing')
 			if (online_wallpaper and online_wallpaper ~= "none") then
-				local picurl = sys.exec("/usr/libexec/argon/online_wallpaper")
-				if (picurl and picurl ~= '') then
-					return picurl, "Image", ""
+				local picurl = util.ubus("luci.argon_wallpaper", "get_url") or {}
+				if (picurl.url and picurl.url ~= '') then
+					return picurl.url, "Image", ""
 				end
 			end
 		end
diff --git a/luci-theme-argon/root/usr/libexec/argon/online_wallpaper b/luci-theme-argon/root/usr/libexec/argon/online_wallpaper
deleted file mode 100755
index 01bcae23..00000000
--- a/luci-theme-argon/root/usr/libexec/argon/online_wallpaper
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/bin/sh
-# author jjm2473
-
-# the script will be excuted when `argon.@global[0].bing_background == '1'`
-# defaults to 'bing' to be compatible with old config
-WEB_PIC_SRC=$(uci -q get argon.@global[0].online_wallpaper || echo 'bing')
-# For now, the next two variables are used for wallhaven.cc with specified Tag ID
-# API_KEY if user has an account with wallhaven and want to use their apikey to allow for more images
-# EXACT_RESO is used for exact resolution by default, if not use 'atleast' instead of 'resolutions'
-API_KEY=$(uci -q get argon.@global[0].use_api_key)
-EXACT_RESO=$(uci -q get argon.@global[0].use_exact_resolution || echo '1')
-CACHE=/var/run/argon_${WEB_PIC_SRC}.url
-WRLOCK=/var/lock/argon_${WEB_PIC_SRC}.lock
-
-fetch_pic_url() {
-    case $WEB_PIC_SRC in
-    bing)
-        local picpath=$(curl -fks --max-time 3 \
-            "https://www.bing.com/HPImageArchive.aspx?format=js&n=1" |
-            jsonfilter -qe '@.images[0].url')
-        [ -n "${picpath}" ] && echo "//www.bing.com${picpath}"
-        ;;
-    unsplash)
-        if [ -z "$API_KEY" ]; then
-            curl -fks --max-time 3 \
-                "https://source.unsplash.com/1920x1080/daily?wallpapers" |
-                sed -E 's#^.*href="([^?]+)\?.*$#\1?fm=jpg\&fit=crop\&w=1920\&h=1080#'
-        else
-            curl -fks --max-time 3 \
-                "https://api.unsplash.com/photos/random?client_id=${API_KEY}" |
-                jsonfilter -qe '@["urls"]["regular"]'
-        fi
-        ;;
-    unsplash_*)
-        local collection_id=${WEB_PIC_SRC#unsplash_}
-        if [ -z "$API_KEY" ]; then
-            curl -fks --max-time 3 \
-                "https://source.unsplash.com/collection/${collection_id}/1920x1080" |
-                sed -E 's#^.*href="([^?]+)\?.*$#\1?fm=jpg\&fit=crop\&w=1920\&h=1080#'
-        else
-            curl -fks --max-time 3 \
-                "https://api.unsplash.com/photos/random?client_id=${API_KEY}&collections=${collection_id}" |
-                jsonfilter -qe '@["urls"]["regular"]'
-        fi
-        ;;
-    wallhaven)
-        curl -fks --max-time 3 \
-            "https://wallhaven.cc/api/v1/search?resolutions=1920x1080&sorting=random" |
-            jsonfilter -qe '@.data[0].path'
-        ;;
-    wallhaven_*)
-        local tag_id=${WEB_PIC_SRC#wallhaven_}
-        local has_api_key=""
-        [ -n "$API_KEY" ] && has_api_key="apikey=$API_KEY&" || has_api_key=""
-        local use_reso="resolutions"
-        [ "$EXACT_RESO" -eq "1" ] && use_reso='resolutions' || use_reso='atleast'
-        curl -fks --max-time 3 \
-            "https://wallhaven.cc/api/v1/search?${has_api_key}q=id%3A${tag_id}&${use_reso}=1920x1080&sorting=random" |
-            jsonfilter -qe '@.data[0].path'
-        ;;
-    esac
-}
-
-try_update() {
-    local lock="$WRLOCK"
-    exec 200>$lock
-
-    if flock -n 200 >/dev/null 2>&1; then
-        local picurl=$(fetch_pic_url)
-        if [[ "$WEB_PIC_SRC" == wallhave* ]] ; then
-            curl -fks --max-time 3 --url "${picurl}" > /dev/null
-        fi
-        if [ -n "$picurl" ]; then
-            echo "${picurl}" | tee "$CACHE"
-        else
-            if [ -s "$CACHE" ]; then
-                cat "$CACHE"
-            else
-                touch "$CACHE"
-            fi
-        fi
-        flock -u 200 >/dev/null 2>&1
-    elif [ -s "$CACHE" ]; then
-        cat "$CACHE"
-    fi
-}
-
-get_url() {
-    if [ -f "$CACHE" ]; then
-        local idle_t=$(($(date '+%s') - $(date -r "$CACHE" '+%s' 2>/dev/null || echo '0')))
-        if [ -s "$CACHE" ]; then
-            if [ $idle_t -le 43200 ]; then
-                cat "$CACHE"
-                return
-            fi
-        else
-            if [ $idle_t -le 120 ]; then
-                return
-            fi
-        fi
-    fi
-    try_update
-}
-
-get_url
diff --git a/luci-theme-argon/root/usr/libexec/rpcd/luci.argon_wallpaper b/luci-theme-argon/root/usr/libexec/rpcd/luci.argon_wallpaper
new file mode 100755
index 00000000..530121f5
--- /dev/null
+++ b/luci-theme-argon/root/usr/libexec/rpcd/luci.argon_wallpaper
@@ -0,0 +1,129 @@
+#!/bin/sh
+# author jjm2473
+
+. /lib/functions.sh
+. /usr/share/libubox/jshn.sh
+
+# the script will be excuted when `argon.@global[0].bing_background == '1'`
+# defaults to 'bing' to be compatible with old config
+WEB_PIC_SRC="$(uci -q get argon.@global[0].online_wallpaper || echo 'bing')"
+
+# For now, the next two variables are used for wallhaven.cc with specified Tag ID
+# API_KEY if user has an account with wallhaven and want to use their apikey to allow for more images
+# EXACT_RESO is used for exact resolution by default, if not use 'atleast' instead of 'resolutions'
+API_KEY="$(uci -q get argon.@global[0].use_api_key)"
+EXACT_RESO="$(uci -q get argon.@global[0].use_exact_resolution || echo '1')"
+
+CACHE="/var/run/argon_${WEB_PIC_SRC}.url"
+WRLOCK="/var/lock/argon_${WEB_PIC_SRC}.lock"
+
+fetch_pic_url() {
+	case "$WEB_PIC_SRC" in
+	bing)
+		local picpath="$(wget -T3 -qO- \
+			"https://www.bing.com/HPImageArchive.aspx?format=js&n=1" |
+			jsonfilter -qe '@.images[0].url' |
+			sed 's/1920x1080/UHD/g')"
+		[ -n "${picpath}" ] && echo "//www.bing.com${picpath}"
+		;;
+	unsplash)
+		if [ -z "$API_KEY" ]; then
+			local pic_id="$(wget -T3 --spider \
+				"https://source.unsplash.com/1920x1080/daily?wallpapers" 2>&1 |
+				grep -Eo "photo-\w+-\w+" | head -n1)"
+			[ -n "${pic_id}" ] && echo "https://images.unsplash.com/${pic_id}?fm=jpg&fit=crop&w=1920&h=1080"
+		else
+			wget -T3 -qO- "https://api.unsplash.com/photos/random?client_id=${API_KEY}" |
+				jsonfilter -qe '@["urls"]["regular"]'
+		fi
+		;;
+	unsplash_*)
+		local collection_id="${WEB_PIC_SRC#unsplash_}"
+		if [ -z "$API_KEY" ]; then
+			local pic_id="$(wget -T3 --spider \
+				"https://source.unsplash.com/collection/${collection_id}/1920x1080" 2>&1 |
+				grep -Eo "photo-\w+-\w+" | head -n1)"
+			[ -n "${pic_id}" ] && echo "https://images.unsplash.com/${pic_id}?fm=jpg&fit=crop&w=1920&h=1080"
+		else
+			wget -T3 -qO- \
+				"https://api.unsplash.com/photos/random?client_id=${API_KEY}&collections=${collection_id}" |
+				jsonfilter -qe '@["urls"]["regular"]'
+		fi
+		;;
+	wallhaven)
+		wget -T3 -qO- \
+			"https://wallhaven.cc/api/v1/search?resolutions=1920x1080&sorting=random" |
+			jsonfilter -qe "@.data[0].path"
+		;;
+	wallhaven_*)
+		local tag_id="${WEB_PIC_SRC#wallhaven_}"
+		local use_reso="resolutions"
+		[ "$EXACT_RESO" -eq "1" ] || use_reso="atleast"
+		[ -z "$API_KEY" ] || API_KEY="apikey=$API_KEY&"
+		wget -T3 -qO- \
+			"https://wallhaven.cc/api/v1/search?${API_KEY}q=id%3A${tag_id}&${use_reso}=1920x1080&sorting=random" |
+			jsonfilter -qe '@.data[0].path'
+		;;
+	esac
+}
+
+try_update() {
+	local lock="$WRLOCK"
+	exec 200>"$lock"
+
+	if flock -n 200 >"/dev/null" 2>&1; then
+		local picurl="$(fetch_pic_url)"
+		if [ -n "$picurl" ]; then
+			echo "$picurl" | tee "$CACHE"
+		else
+			if [ -s "$CACHE" ]; then
+				cat "$CACHE"
+			else
+				touch "$CACHE"
+			fi
+		fi
+		flock -u 200 >"/dev/null" 2>&1
+	elif [ -s "$CACHE" ]; then
+		cat "$CACHE"
+	fi
+}
+
+case "$1" in
+"list")
+	json_init
+	json_add_object "get_url"
+	json_close_object
+	json_dump
+	json_cleanup
+	;;
+"call")
+	case "$2" in
+	"get_url")
+		read -r input
+		if [ -f "$CACHE" ]; then
+			idle_t="$(($(date '+%s') - $(date -r "$CACHE" '+%s' 2>/dev/null || echo '0')))"
+			if [ -s "$CACHE" ]; then
+				if [ "$idle_t" -le "43200" ]; then
+					json_init
+					json_add_string "url" "$(cat "$CACHE")"
+					json_dump
+					json_cleanup
+					return 0
+				fi
+			else
+				if [ "$idle_t" -le 120 ]; then
+					echo '{ "url": "" }'
+					return 1
+				fi
+			fi
+		fi
+
+		json_init
+		json_add_string "url" "$(try_update)"
+		json_dump
+		json_cleanup
+		return 0
+		;;
+	esac
+	;;
+esac