diff --git a/.config/hypr/config/binds.lua b/.config/hypr/config/binds.lua
index 4909ee9..7d5f805 100644
--- a/.config/hypr/config/binds.lua
+++ b/.config/hypr/config/binds.lua
@@ -70,12 +70,12 @@ hl.bind("SUPER + backslash", hl.dsp.workspace.toggle_special("SCR"))
 hl.bind("SUPER + SHIFT + backslash", hl.dsp.window.move({ workspace = "special:SCR" }))
 
 -- wallpapers
-hl.bind("SUPER + W", hl.dsp.exec_cmd("sh ~/dotfiles/script/cycle_wallpaper.sh 'seq'"))
-hl.bind("SUPER + SHIFT + W", hl.dsp.exec_cmd("sh ~/dotfiles/script/cycle_wallpaper.sh 'rev'"))
+hl.bind("SUPER + W", hl.dsp.exec_cmd("ysh ~/dotfiles/script/cycle_wallpaper.ysh 'seq'"))
+hl.bind("SUPER + SHIFT + W", hl.dsp.exec_cmd("ysh ~/dotfiles/script/cycle_wallpaper.ysh 'rev'"))
 -- video wallpaper
-hl.bind("ALT + W", hl.dsp.exec_cmd("sh ~/dotfiles/script/cycle_wallpaper.sh 'vdo'"))
+hl.bind("ALT + W", hl.dsp.exec_cmd("ysh ~/dotfiles/script/cycle_wallpaper.ysh 'vdo'"))
 -- safe wallpaper
-hl.bind("SUPER + ALT + W", hl.dsp.exec_cmd("sh ~/dotfiles/script/safe_wallpaper.sh"))
+hl.bind("SUPER + ALT + W", hl.dsp.exec_cmd("ysh ~/dotfiles/script/safe_wallpaper.ysh"))
 
 -- Immediately lock
 -- bind = SUPER SHIFT, E, exec, ~/dotfiles/commands/logout.py
diff --git a/.config/hypr/config/init.lua b/.config/hypr/config/init.lua
index 010dd3f..1207f1a 100644
--- a/.config/hypr/config/init.lua
+++ b/.config/hypr/config/init.lua
@@ -9,6 +9,6 @@ hl.on("hyprland.start", function()
   hl.exec_cmd("swaync")
   hl.exec_cmd("hyprctl setcursor Bibata-Modern-Ice 24")
   hl.exec_cmd("awww-daemon")
-  hl.exec_cmd("sh ~/dotfiles/script/cycle_wallpaper.sh")
-  hl.exec_cmd("sh ~/dotfiles/script/launch-waybar.sh")
+  hl.exec_cmd("ysh ~/dotfiles/script/cycle_wallpaper.ysh")
+  hl.exec_cmd("ysh ~/dotfiles/script/launch-waybar.ysh")
 end)
diff --git a/.config/hypr/hyprlock.conf b/.config/hypr/hyprlock.conf
index c0080fa..00be5f0 100644
--- a/.config/hypr/hyprlock.conf
+++ b/.config/hypr/hyprlock.conf
@@ -110,7 +110,7 @@ shape {
 # play status
 label {
     monitor =
-    text = cmd[update:2000] ~/dotfiles/script/mpris.sh status
+    text = cmd[update:2000] ~/dotfiles/script/mpris.ysh status
     color = rgba(203, 166, 247, 0.8)
     font_size = 11
     font_family = 0xProto Nerd Font
@@ -123,7 +123,7 @@ label {
 # title
 label {
     monitor =
-    text = cmd[update:2000] ~/dotfiles/script/mpris.sh title
+    text = cmd[update:2000] ~/dotfiles/script/mpris.ysh title
     color = rgb(205, 214, 244)
     font_size = 15
     font_family = 0xProto Nerd Font Bold
@@ -136,7 +136,7 @@ label {
 # artist
 label {
     monitor =
-    text = cmd[update:2000] ~/dotfiles/script/mpris.sh artist
+    text = cmd[update:2000] ~/dotfiles/script/mpris.ysh artist
     color = rgba(166, 173, 200, 0.75)
     font_size = 12
     font_family = 0xProto Nerd Font
@@ -149,7 +149,7 @@ label {
 # progress bar
 label {
     monitor =
-    text = cmd[update:2000] ~/dotfiles/script/mpris.sh progress
+    text = cmd[update:2000] ~/dotfiles/script/mpris.ysh progress
     color = rgba(203, 166, 247, 0.6)
     font_size = 10
     font_family = 0xProto Nerd Font Mono
diff --git a/.config/niri/config.kdl b/.config/niri/config.kdl
index 96aa67b..60cabce 100644
--- a/.config/niri/config.kdl
+++ b/.config/niri/config.kdl
@@ -28,8 +28,8 @@ spawn-at-startup "sh" "-c" "dbus-update-activation-environment --systemd WAYLAND
 spawn-at-startup "sh" "-c" "systemctl --user stop xdg-desktop-portal xdg-desktop-portal-hyprland xdg-desktop-portal-wlr xdg-desktop-portal-gtk; systemctl --user start xdg-desktop-portal"
 
 spawn-at-startup "awww-daemon"
-spawn-at-startup "sh" "$HOME/dotfiles/script/cycle_wallpaper.sh"
-spawn-at-startup "sh" "$HOME/dotfiles/script/launch-waybar.sh"
+spawn-at-startup "ysh" "$HOME/dotfiles/script/cycle_wallpaper.ysh"
+spawn-at-startup "ysh" "$HOME/dotfiles/script/launch-waybar.ysh"
 spawn-at-startup "swaync"
 spawn-at-startup "fcitx5"
 spawn-at-startup "wl-paste" "--type" "text" "--watch" "cliphist" "store"
@@ -228,10 +228,10 @@ binds {
 
     Alt+L hotkey-overlay-title="Lock the Screen: Swaylock" { spawn "swaylock"; }
 
-    Mod+W { spawn "~/dotfiles/script/cycle_wallpaper.sh" "seq"; }
-    Mod+Shift+W { spawn "~/dotfiles/script/cycle_wallpaper.sh" "rev"; }
-    Ctrl+Alt+W { spawn "~/dotfiles/script/cycle_wallpaper.sh" "rnd"; }
-    Mod+Alt+W { spawn "~/dotfiles/script/safe_wallpaper.sh"; }
+    Mod+W { spawn "ysh" "/home/alice/dotfiles/script/cycle_wallpaper.ysh" "seq"; }
+    Mod+Shift+W { spawn "ysh" "/home/alice/dotfiles/script/cycle_wallpaper.ysh" "rev"; }
+    Ctrl+Alt+W { spawn "ysh" "/home/alice/dotfiles/script/cycle_wallpaper.ysh" "rnd"; }
+    Mod+Alt+W { spawn "ysh" "/home/alice/dotfiles/script/safe_wallpaper.ysh"; }
 
     Super+Print { screenshot; }
     Print { screenshot-window; }
diff --git a/.config/sampler/config.yml b/.config/sampler/config.yml
index 2f9e630..9e31aee 100644
--- a/.config/sampler/config.yml
+++ b/.config/sampler/config.yml
@@ -105,7 +105,7 @@ textboxes:
     rate-ms: 500
     color: 45
     sample: |
-        sh -c '$HOME/dotfiles/script/asciiquarium-sampler.sh 40 15'
+        ysh -c '$HOME/dotfiles/script/asciiquarium-sampler.ysh 40 15'
     border: true
 asciiboxes:
   - title: Clock
diff --git a/.config/sampler/config_1.yml b/.config/sampler/config_1.yml
index 6a5882f..ddef70b 100644
--- a/.config/sampler/config_1.yml
+++ b/.config/sampler/config_1.yml
@@ -105,7 +105,7 @@ textboxes:
     rate-ms: 500
     color: 45
     sample: |
-        sh -c '$HOME/dotfiles/script/asciiquarium-sampler.sh 100 18'
+        ysh -c '$HOME/dotfiles/script/asciiquarium-sampler.ysh 100 18'
     border: true
 
 asciiboxes:
diff --git a/.config/systemd/user/cycle_wallpaper.service b/.config/systemd/user/cycle_wallpaper.service
index 7e86dff..521b638 100644
--- a/.config/systemd/user/cycle_wallpaper.service
+++ b/.config/systemd/user/cycle_wallpaper.service
@@ -3,7 +3,7 @@ Description=wallpaper cycle by awww
 
 [Service]
 Type=oneshot
-ExecStart=%h/dotfiles/script/cycle_wallpaper.sh rnd
+ExecStart=/usr/bin/env ysh %h/dotfiles/script/cycle_wallpaper.ysh rnd
 StandardOutput=journal
 StandardError=journal
 
diff --git a/.config/waybar/config.hypr.jsonc b/.config/waybar/config.hypr.jsonc
index 8f75d83..302fb4a 100644
--- a/.config/waybar/config.hypr.jsonc
+++ b/.config/waybar/config.hypr.jsonc
@@ -119,7 +119,7 @@
     "on-click": "kitty --class='dev-float' -e jolt"
   },
   "custom/tlp": {
-    "exec": "~/dotfiles/script/tlp-waybar-status.sh",
+    "exec": "~/dotfiles/script/tlp-waybar-status.ysh",
     "interval": 30,
     "format": "󰌪 {}"
   },
diff --git a/.config/waybar/config.niri.jsonc b/.config/waybar/config.niri.jsonc
index 8abe979..3abab4d 100644
--- a/.config/waybar/config.niri.jsonc
+++ b/.config/waybar/config.niri.jsonc
@@ -116,7 +116,7 @@
   },
 
   "custom/tlp": {
-    "exec": "~/dotfiles/script/tlp-waybar-status.sh",
+    "exec": "~/dotfiles/script/tlp-waybar-status.ysh",
     "interval": 30,
     "format": "󰌪 {}"
   },
diff --git a/commands/cmd_p.py b/commands/cmd_p.py
index 02ac3f9..357e50e 100755
--- a/commands/cmd_p.py
+++ b/commands/cmd_p.py
@@ -10,14 +10,14 @@
 
 cmds = {
     "󰸉 Toggle WP slideshow":   ["sh", script + "cycle_wallpaper.sh", "pse"],
-    "󰔎 Toggle theme L-D":          ["sh", script + "toggle_theme.sh"],
+    "󰔎 Toggle theme L-D":          ["ysh", script + "toggle_theme.ysh"],
     " Random WP":                 ["sh", script + "cycle_wallpaper.sh", "rnd"],
-    "󰴰 Change to pub WP":               ["sh", script + "safe_wallpaper.sh"],
-    " Show status of WP slide":   ["sh", script + "status_of_slide.sh"],
+    "󰴰 Change to pub WP":               ["ysh", script + "safe_wallpaper.ysh"],
+    " Show status of WP slide":   ["ysh", script + "status_of_slide.ysh"],
     "󱎐 Launch white in kitty":            ["kitty", "--config", home + "/dotfiles/.config/kitty/light.conf"],
     "󰹑 Screenshot active monitor":        ["hyprshot", "-m", "output", "-m", "active", "--freeze"],
     "󱂬 Screenshot active window":         ["hyprshot", "-m", "window", "-m", "active", "--freeze"],
-    " Toggle visual effects":            ["sh", script + "toggle_visual.sh"],
+    " Toggle visual effects":            ["ysh", script + "toggle_visual.ysh"],
     "󰑓 Reload Hyprland config":           ["hyprctl", "reload"],
 }
 
diff --git a/script/__new_bk.sh b/script/__new_bk.ysh
similarity index 73%
rename from script/__new_bk.sh
rename to script/__new_bk.ysh
index 29a6aa6..6af3692 100755
--- a/script/__new_bk.sh
+++ b/script/__new_bk.ysh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env ysh
 
 mount_p="$(mount | grep bk | awk '{print $3}')"
 if 
diff --git a/script/asciiquarium-sampler.sh b/script/asciiquarium-sampler.ysh
similarity index 98%
rename from script/asciiquarium-sampler.sh
rename to script/asciiquarium-sampler.ysh
index c04fe57..ccc7c6b 100755
--- a/script/asciiquarium-sampler.sh
+++ b/script/asciiquarium-sampler.ysh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env ysh
 
 # Render Asciiquarium inside sampler by running it in a tmux session
 # and capturing the pane contents.
diff --git a/script/audio_swicher.sh b/script/audio_swicher.ysh
similarity index 97%
rename from script/audio_swicher.sh
rename to script/audio_swicher.ysh
index 03a8896..ba4512a 100755
--- a/script/audio_swicher.sh
+++ b/script/audio_swicher.ysh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env ysh
 
 # 1. Sinks（出力）セクションから次のセクション（Sources）までの間だけを抜き出す
 # 2. その中からIDと名前の行を取得
diff --git a/script/cmd_pallet.py b/script/cmd_pallet.py
index 3564527..c73d4e0 100755
--- a/script/cmd_pallet.py
+++ b/script/cmd_pallet.py
@@ -10,15 +10,15 @@
 
 cmds = {
     "󰸉 Toggle slideshow of wallpapers":   ["sh", script + "cycle_wallpaper.sh", "pse"],
-    "󰔎 Toggle light-dark theme":          ["sh", script + "toggle_theme.sh"],
+    "󰔎 Toggle light-dark theme":          ["ysh", script + "toggle_theme.ysh"],
     " Random wallpaper":                 ["sh", script + "cycle_wallpaper.sh", "rnd"],
-    "󰴰 Change to pub wall":               ["sh", script + "safe_wallpaper.sh"],
-    "Show status of wallpaper slide":   ["sh", script + "status_of_slide.sh"],
+    "󰴰 Change to pub wall":               ["ysh", script + "safe_wallpaper.ysh"],
+    "Show status of wallpaper slide":   ["ysh", script + "status_of_slide.ysh"],
     "Launch slide in kitty":            ["kitty", "--config", home + "/dotfiles/.config/kitty/slide.conf", "--directory", slide_dev],
     "Launch white in kitty":            ["kitty", "--config", home + "/dotfiles/.config/kitty/light.conf"],
     "󰹑 Screenshot active monitor":        ["hyprshot", "-m", "output", "-m", "active", "--freeze"],
     "󱂬 Screenshot active window":         ["hyprshot", "-m", "window", "-m", "active", "--freeze"],
-    "Toggle visual effects":            ["sh", script + "toggle_visual.sh"],
+    "Toggle visual effects":            ["ysh", script + "toggle_visual.ysh"],
     "Reload Hyprland config":           ["hyprctl", "reload"],
 }
 
diff --git a/script/cycle_wallpaper.ysh b/script/cycle_wallpaper.ysh
index 83e15cb..b5323b3 100755
--- a/script/cycle_wallpaper.ysh
+++ b/script/cycle_wallpaper.ysh
@@ -1,126 +1,138 @@
 #!/usr/bin/env ysh
 
-forward_mode=0
-reverse_mode=1
-current_paper_path="$HOME/dotfiles/.config/hypr/env/CURRENT_PAPER"
-wallpaper_dir="$HOME/Pictures/wallpapers/"
-wallvideo_path="$HOME/Pictures/wallvideo/ok_geek_eyes_24.mp4"
-mpvpaper_args="--hwdec=auto-safe --vo=gpu"
-
-get_all() {
-  find "$1" -maxdepth 1 -type f | sort
-}
+var HOME = ENV.HOME
+
+var forward_mode = 0
+var reverse_mode = 1
+var current_paper_path = "${HOME}/dotfiles/.config/hypr/env/CURRENT_PAPER"
+var wallpaper_dir = "${HOME}/Pictures/wallpapers/"
+var wallvideo_path = "${HOME}/Pictures/wallvideo/ok_geek_eyes_24.mp4"
+var mpvpaper_args = "--hwdec=auto-safe --panscan=1.0"
 
-get_first_path() {
-  get_all "$1" | head -n 1
+proc get_all(dir) {
+  find "$dir" -maxdepth 1 -type f | sort
 }
 
-get_next_path() {
-  local current_path="$1"
-  local listed_paths="$2"
-  local rev_mode="$3"
-  local matched
+proc get_first_path(dir) {
+  get_all "$dir" | head -n 1
+}
 
-  if (( rev_mode == forward_mode )); then
-    matched="$(printf '%s\n' "$listed_paths" | grep -Fx "$current_path" -A 1)"
-  else
-    matched="$(printf '%s\n' "$listed_paths" | grep -Fx "$current_path" -B 1)"
-  fi
+proc get_next_path(current_path, listed_paths, rev_mode) {
+  var matched = ""
+  if (rev_mode === forward_mode) {
+    setvar matched = $(printf '%s\n' "$listed_paths" | grep -Fx "$current_path" -A 1)
+  } else {
+    setvar matched = $(printf '%s\n' "$listed_paths" | grep -Fx "$current_path" -B 1)
+  }
 
-  local matched_lines
-  matched_lines="$(printf '%s\n' "$matched" | wc -l | tr -d ' ')"
+  var matched_lines = $(printf '%s\n' "$matched" | wc -l | tr -d ' ')
 
-  if (( matched_lines != 2 )); then
-    if (( rev_mode == forward_mode )); then
+  if (matched_lines !== "2") {
+    if (rev_mode === forward_mode) {
       printf '%s\n' "$listed_paths" | head -n 1
-    else
+    } else {
       printf '%s\n' "$listed_paths" | tail -n 1
-    fi
-  else
-    if (( rev_mode == forward_mode )); then
+    }
+  } else {
+    if (rev_mode === forward_mode) {
       printf '%s\n' "$matched" | tail -n 1
-    else
+    } else {
       printf '%s\n' "$matched" | head -n 1
-    fi
-  fi
+    }
+  }
 }
 
-seq_or_rev() {
-  local rev_mode="$1"
-  local wallpaper_dir="$2"
-  local next
-
-  if [[ -s "$current_paper_path" ]]; then
-    local current_paper
-    current_paper="$(cat "$current_paper_path")"
-    if [[ -f "$current_paper" ]]; then
-      local list
-      list="$(get_all "$wallpaper_dir")"
-      next="$(get_next_path "$current_paper" "$list" "$rev_mode")"
-    else
-      next="$(get_first_path "$wallpaper_dir")"
-    fi
-  else
-    next="$(get_first_path "$wallpaper_dir")"
-  fi
-
-  printf '%s\n' "$next" >"$current_paper_path"
+proc seq_or_rev(rev_mode, wallpaper_dir) {
+  var next = ""
+  if test -s "$current_paper_path" {
+    var current_paper = $(cat "$current_paper_path")
+    if test -f "$current_paper" {
+      var list = $(get_all "$wallpaper_dir")
+      setvar next = $(get_next_path "$current_paper" "$list" "$rev_mode")
+    } else {
+      setvar next = $(get_first_path "$wallpaper_dir")
+    }
+  } else {
+    setvar next = $(get_first_path "$wallpaper_dir")
+  }
+
+  printf '%s\n' "$next" > "$current_paper_path"
   printf '%s\n' "$next"
 }
 
-random_paper() {
-  local wallpaper_dir="$1"
-  local randomed_path
-
-  randomed_path="$(find "$wallpaper_dir" -type f | shuf -n 1)"
-  printf '%s\n' "$randomed_path" >"$current_paper_path"
+proc random_paper(wallpaper_dir) {
+  var randomed_path = $(find "$wallpaper_dir" -type f | shuf -n 1)
+  printf '%s\n' "$randomed_path" > "$current_paper_path"
   printf '%s\n' "$randomed_path"
 }
 
-toggle_systemtimer() {
-  if systemctl --user is-active --quiet cycle_wallpaper.timer; then
-    if systemctl --user stop cycle_wallpaper.timer; then
+proc toggle_systemtimer() {
+  if systemctl --user is-active --quiet cycle_wallpaper.timer {
+    if systemctl --user stop cycle_wallpaper.timer {
       notify-send "Stop slideshow"
-    else
+    } else {
       notify-send "Failed stop slideshow"
-    fi
-  else
-    if systemctl --user start cycle_wallpaper.timer; then
+    }
+  } else {
+    if systemctl --user start cycle_wallpaper.timer {
       notify-send "Start slideshow"
-    else
+    } else {
       notify-send "Failed start slideshow"
-    fi
-  fi
+    }
+  }
 }
 
-toggle_video() {
-  local v_pid
-  v_pid="$(pgrep mpvpaper || true)"
+proc toggle_video() {
+  var v_pid = $(pgrep mpvpaper || true)
 
-  if [[ -n "$v_pid" ]]; then
-    if pkill mpvpaper; then
+  if (v_pid !== "") {
+    if pkill mpvpaper {
       notify-send "Stop wallvideo"
-    else
+    } else {
       notify-send "Failed stop wallvideo"
-    fi
-  else
-    if mpvpaper '*' "$wallvideo_path" -o "no-audio loop" --fork --mpv-args="$mpvpaper_args"; then
+    }
+  } else {
+    if mpvpaper '*' "$wallvideo_path" -o "no-audio loop" --fork -o "no-audio loop --panscan=1.0" --mpv-args="$mpvpaper_args" {
       notify-send "Start wallvideo"
-    else
+    } else {
       notify-send "Failed start wallvideo"
-    fi
-  fi
+    }
+  }
 }
 
-case "${1:-}" in
-  seq) wall_path="$(seq_or_rev "$forward_mode" "$wallpaper_dir")" ;;
-  rev) wall_path="$(seq_or_rev "$reverse_mode" "$wallpaper_dir")" ;;
-  rnd) wall_path="$(random_paper "$wallpaper_dir")" ;;
-  vdo) toggle_video && exit 0 || exit 1 ;;
-  pse) toggle_systemtimer && exit 0 || exit 1 ;;
-  *) wall_path="${2:-}" ;;
+var wall_path = ""
+var arg1 = ""
+if (len(ARGV) > 0) {
+  setvar arg1 = ARGV[0]
+}
+
+case "$arg1" in
+  seq)
+    setvar wall_path = $(seq_or_rev "$forward_mode" "$wallpaper_dir")
+    ;;
+  rev)
+    setvar wall_path = $(seq_or_rev "$reverse_mode" "$wallpaper_dir")
+    ;;
+  rnd)
+    setvar wall_path = $(random_paper "$wallpaper_dir")
+    ;;
+  vdo)
+    toggle_video
+    exit 0
+    ;;
+  pse)
+    toggle_systemtimer
+    exit 0
+    ;;
+  *) 
+    if (len(ARGV) > 1) {
+      setvar wall_path = ARGV[1]
+    }
+    ;;
 esac
 
-mkdir -p "$HOME/dotfiles/.config/hypr/env"
+mkdir -p "${HOME}/dotfiles/.config/hypr/env"
 
-awww img "$wall_path" --transition-type center --transition-duration 0.5
+if (wall_path !== "") {
+  awww img "$wall_path" --transition-type center --transition-duration 0.5
+}
diff --git a/script/dyn_put.sh b/script/dyn_put.ysh
similarity index 78%
rename from script/dyn_put.sh
rename to script/dyn_put.ysh
index 6170e47..18b3e4c 100755
--- a/script/dyn_put.sh
+++ b/script/dyn_put.ysh
@@ -1,4 +1,4 @@
-#!/bin/env bash
+#!/usr/bin/env ysh
 
 if command -v bat >/dev/null 2>&1; then
   bat "$@"
diff --git a/script/figsep.sh b/script/figsep.ysh
similarity index 97%
rename from script/figsep.sh
rename to script/figsep.ysh
index fea85a4..6c62eb3 100755
--- a/script/figsep.sh
+++ b/script/figsep.ysh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env ysh
 
 export NVM_DIR="$HOME/.config/nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
diff --git a/script/launch-waybar.sh b/script/launch-waybar.sh
deleted file mode 100755
index 577292a..0000000
--- a/script/launch-waybar.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env bash
-
-# script/launch-waybar.sh
-
-# $1: style file
-
-killall waybar || true
-pkill waybar || true
-sleep 0.5
-
-STYLE="$HOME/dotfiles/.config/waybar/style.css"
-BASE="$HOME/dotfiles/.config/waybar"
-
-if [[ -e "$1" ]]; then
-  STYLE="$1"
-fi
-
-case "$XDG_CURRENT_DESKTOP" in
-Hyprland)
-  waybar -c "$BASE/config.hypr.jsonc" -s "$STYLE" &
-  ;;
-niri)
-  waybar -c "$BASE/config.niri.jsonc" -s "$STYLE" &
-  ;;
-sway:wlroots)
-  waybar -c "$BASE/config.sway.jsonc" -s "$STYLE" &
-  ;;
-esac
diff --git a/script/launch-waybar.ysh b/script/launch-waybar.ysh
new file mode 100755
index 0000000..760531d
--- /dev/null
+++ b/script/launch-waybar.ysh
@@ -0,0 +1,35 @@
+#!/usr/bin/env ysh
+
+# script/launch-waybar.ysh
+
+# $1: style file
+
+var HOME = ENV.HOME
+var XDG_CURRENT_DESKTOP = ENV.XDG_CURRENT_DESKTOP
+
+pkill waybar || true
+sleep 0.5
+
+var STYLE = "${HOME}/dotfiles/.config/waybar/style.css"
+var BASE = "${HOME}/dotfiles/.config/waybar"
+
+var arg1 = ""
+if (len(ARGV) > 0) {
+  setvar arg1 = ARGV[0]
+}
+
+if test -e "$arg1" {
+  setvar STYLE = arg1
+}
+
+case "$XDG_CURRENT_DESKTOP" in
+  Hyprland)
+    fork { waybar -c "$BASE/config.hypr.jsonc" -s "$STYLE" }
+    ;;
+  niri)
+    fork { waybar -c "$BASE/config.niri.jsonc" -s "$STYLE" }
+    ;;
+  sway:wlroots)
+    fork { waybar -c "$BASE/config.sway.jsonc" -s "$STYLE" }
+    ;;
+esac
diff --git a/script/monitor_man.sh b/script/monitor_man.sh
deleted file mode 100755
index 1ed5d4b..0000000
--- a/script/monitor_man.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/bash
-
-base_path="$HOME/dotfiles/.config/hypr/monitor"
-moni_path="$HOME/dotfiles/.config/hypr/monitor/monitor.conf"
-
-help_msg="dsgl: thinkpad + ~~4k~~
-lsgl: thinkpad
-dual: thinkpad + 4k"
-
-case "$1" in
-dsgl) path="${base_path}/home.conf" ;;
-lsgl) path="${base_path}/laptop.conf" ;;
-dual) path="${base_path}/home_dual.conf" ;;
-*) path=$2 ;;
-esac
-
-ln -fs "$path" "$moni_path"
-
-eza -l "$moni_path"
diff --git a/script/monitor_man.ysh b/script/monitor_man.ysh
new file mode 100755
index 0000000..89fb9cb
--- /dev/null
+++ b/script/monitor_man.ysh
@@ -0,0 +1,31 @@
+#!/usr/bin/env ysh
+
+var HOME = ENV.HOME
+
+var base_path = "${HOME}/dotfiles/.config/hypr/monitor"
+var moni_path = "${HOME}/dotfiles/.config/hypr/monitor/monitor.conf"
+
+var help_msg = "dsgl: thinkpad + ~~4k~~
+lsgl: thinkpad
+dual: thinkpad + 4k"
+
+var arg1 = ""
+if (len(ARGV) > 0) {
+  setvar arg1 = ARGV[0]
+}
+
+var path = ""
+case "$arg1" in
+  dsgl) setvar path = "${base_path}/home.conf" ;;
+  lsgl) setvar path = "${base_path}/laptop.conf" ;;
+  dual) setvar path = "${base_path}/home_dual.conf" ;;
+  *) 
+    if (len(ARGV) > 1) {
+      setvar path = ARGV[1]
+    }
+    ;;
+esac
+
+ln -fs "$path" "$moni_path"
+
+eza -l "$moni_path"
diff --git a/script/mpris.sh b/script/mpris.sh
deleted file mode 100755
index f9f4664..0000000
--- a/script/mpris.sh
+++ /dev/null
@@ -1,141 +0,0 @@
-#!/usr/bin/env bash
-
-# mpris.sh <status|title|artist|progress|art>
-
-CACHE_DIR="${XDG_CACHE_HOME:-$HOME/.cache}/hyprlock"
-mkdir -p "$CACHE_DIR"
-
-_player() {
-    playerctl --list-all 2>/dev/null | head -1
-}
-
-_is_active() {
-    local player="$1"
-    local status
-    status=$(playerctl --player="$player" status 2>/dev/null)
-    [ "$status" = "Playing" ] || [ "$status" = "Paused" ]
-}
-
-mpris_status() {
-    local player
-    player=$(_player)
-    [ -z "$player" ] && return
-
-    local status
-    status=$(playerctl --player="$player" status 2>/dev/null)
-    case "$status" in
-        Playing)
-            local icon
-            case "$player" in
-                *spotify*)          icon="" ;;
-                *mpd*|*mopidy*)    icon="󰎆" ;;
-                *firefox*|*chrom*) icon="󰈹" ;;
-                *)                  icon="󰝚" ;;
-            esac
-            echo "$icon  Now Playing"
-            ;;
-        Paused)
-            echo "󰏤  Paused"
-            ;;
-    esac
-}
-
-mpris_title() {
-    local player
-    player=$(_player)
-    [ -z "$player" ] && return
-    _is_active "$player" || return
-
-    local title
-    title=$(playerctl --player="$player" metadata title 2>/dev/null)
-    [ -z "$title" ] && return
-
-    if [ ${#title} -gt 28 ]; then
-        echo "${title:0:26}…"
-    else
-        echo "$title"
-    fi
-}
-
-mpris_artist() {
-    local player
-    player=$(_player)
-    [ -z "$player" ] && return
-    _is_active "$player" || return
-
-    local artist
-    artist=$(playerctl --player="$player" metadata artist 2>/dev/null)
-    [ -z "$artist" ] && return
-
-    if [ ${#artist} -gt 32 ]; then
-        echo "${artist:0:30}…"
-    else
-        echo "$artist"
-    fi
-}
-
-mpris_progress() {
-    local player
-    player=$(_player)
-    [ -z "$player" ] && return
-    _is_active "$player" || return
-
-    local pos length
-    pos=$(playerctl --player="$player" position 2>/dev/null | cut -d. -f1)
-    length=$(playerctl --player="$player" metadata mpris:length 2>/dev/null)
-    [ -z "$pos" ] || [ -z "$length" ] && return
-
-    local len_sec=$((length / 1000000))
-    [ $len_sec -le 0 ] && return
-
-    local pos_min=$((pos / 60))
-    local pos_sec=$((pos % 60))
-    local len_min=$((len_sec / 60))
-    local len_sec_r=$((len_sec % 60))
-
-    local filled=$((pos * 16 / len_sec))
-    [ $filled -gt 16 ] && filled=16
-
-    local bar=""
-    for i in $(seq 1 $filled);           do bar="${bar}━"; done
-    for i in $(seq $((filled+1)) 16);    do bar="${bar}─"; done
-
-    printf "%d:%02d  %s  %d:%02d\n" $pos_min $pos_sec "$bar" $len_min $len_sec_r
-}
-
-mpris_art() {
-    local player
-    player=$(_player)
-    [ -z "$player" ] && return
-    _is_active "$player" || return
-
-    local url
-    url=$(playerctl --player="$player" metadata mpris:artUrl 2>/dev/null)
-    [ -z "$url" ] && return
-
-    if [[ "$url" == file://* ]]; then
-        echo "${url#file://}"
-    else
-        local trackid
-        trackid=$(playerctl --player="$player" metadata mpris:trackid 2>/dev/null | tr -dc 'a-zA-Z0-9' | tail -c 40)
-        local cached="$CACHE_DIR/art_${trackid}.jpg"
-        if [ ! -f "$cached" ]; then
-            rm -f "$CACHE_DIR"/art_*.jpg 2>/dev/null
-            curl -sL "$url" -o "$cached" 2>/dev/null
-        fi
-        [ -f "$cached" ] && echo "$cached"
-    fi
-}
-
-# エントリポイント
-case "$1" in
-    status)   mpris_status   ;;
-    title)    mpris_title    ;;
-    artist)   mpris_artist   ;;
-    progress) mpris_progress ;;
-    art)      mpris_art      ;;
-    *)
-        echo "Usage: $0 <status|title|artist|progress|art>" >&2
-        exit 1
-        ;;
-esac
diff --git a/script/mpris.ysh b/script/mpris.ysh
new file mode 100755
index 0000000..803e611
--- /dev/null
+++ b/script/mpris.ysh
@@ -0,0 +1,155 @@
+#!/usr/bin/env ysh
+
+# mpris.ysh <status|title|artist|progress|art>
+
+var HOME = ENV.HOME
+var XDG_CACHE_HOME = ENV.XDG_CACHE_HOME || "${HOME}/.cache"
+var CACHE_DIR = "${XDG_CACHE_HOME}/hyprlock"
+
+mkdir -p "$CACHE_DIR"
+
+proc _player() {
+    playerctl --list-all 2>/dev/null | head -1
+}
+
+proc _is_active(player) {
+    var status = $(playerctl --player="$player" status 2>/dev/null)
+    if (status === "Playing" || status === "Paused") {
+        return 0
+    }
+    return 1
+}
+
+proc mpris_status() {
+    var player = $(_player)
+    if (player === "") { return }
+
+    var status = $(playerctl --player="$player" status 2>/dev/null)
+    case "$status" in
+        Playing)
+            var icon = ""
+            case "$player" in
+                *spotify*)          setvar icon = "" ;;
+                *mpd*|*mopidy*)    setvar icon = "󰎆" ;;
+                *firefox*|*chrom*) setvar icon = "󰈹" ;;
+                *)                  setvar icon = "󰝚" ;;
+            esac
+            echo "$icon  Now Playing"
+            ;;
+        Paused)
+            echo "󰏤  Paused"
+            ;;
+    esac
+}
+
+proc mpris_title() {
+    var player = $(_player)
+    if (player === "") { return }
+    if _is_active "$player" { 
+        # continue
+    } else {
+        return
+    }
+
+    var title = $(playerctl --player="$player" metadata title 2>/dev/null)
+    if (title === "") { return }
+
+    if (len(title) > 28) {
+        echo "${title:0:26}…"
+    else
+        echo "$title"
+    }
+}
+
+proc mpris_artist() {
+    var player = $(_player)
+    if (player === "") { return }
+    if _is_active "$player" {
+        # continue
+    } else {
+        return
+    }
+
+    var artist = $(playerctl --player="$player" metadata artist 2>/dev/null)
+    if (artist === "") { return }
+
+    if (len(artist) > 32) {
+        echo "${artist:0:30}…"
+    else
+        echo "$artist"
+    }
+}
+
+proc mpris_progress() {
+    var player = $(_player)
+    if (player === "") { return }
+    if _is_active "$player" {
+        # continue
+    } else {
+        return
+    }
+
+    var pos = $(playerctl --player="$player" position 2>/dev/null | cut -d. -f1)
+    var length = $(playerctl --player="$player" metadata mpris:length 2>/dev/null)
+    if (pos === "" || length === "") { return }
+
+    var len_sec = $(echo $((length / 1000000)))
+    if (len_sec === "0") { return }
+
+    var pos_min = $(echo $((pos / 60)))
+    var pos_sec = $(echo $((pos % 60)))
+    var len_min = $(echo $((len_sec / 60)))
+    var len_sec_r = $(echo $((len_sec % 60)))
+
+    var filled = $(echo $((pos * 16 / len_sec)))
+    if (int(filled) > 16) { setvar filled = "16" }
+
+    var bar = ""
+    for i in $(seq 1 $filled) { setvar bar = "${bar}━" }
+    for i in $(seq $((int(filled)+1)) 16) { setvar bar = "${bar}─" }
+
+    printf "%d:%02d  %s  %d:%02d\n" $pos_min $pos_sec "$bar" $len_min $len_sec_r
+}
+
+proc mpris_art() {
+    var player = $(_player)
+    if (player === "") { return }
+    if _is_active "$player" {
+        # continue
+    } else {
+        return
+    }
+
+    var url = $(playerctl --player="$player" metadata mpris:artUrl 2>/dev/null)
+    if (url === "") { return }
+
+    if (url.startsWith("file://")) {
+        echo "${url#file://}"
+    else
+        var trackid = $(playerctl --player="$player" metadata mpris:trackid 2>/dev/null | tr -dc 'a-zA-Z0-9' | tail -c 40)
+        var cached = "${CACHE_DIR}/art_${trackid}.jpg"
+        if test ! -f "$cached" {
+            rm -f "$CACHE_DIR"/art_*.jpg 2>/dev/null
+            curl -sL "$url" -o "$cached" 2>/dev/null
+        }
+        if test -f "$cached" { echo "$cached" }
+    }
+}
+
+# エントリポイント
+var arg1 = ""
+if (len(ARGV) > 0) {
+  setvar arg1 = ARGV[0]
+}
+
+case "$arg1" in
+    status)   mpris_status   ;;
+    title)    mpris_title    ;;
+    artist)   mpris_artist   ;;
+    progress) mpris_progress ;;
+    art)      mpris_art      ;;
+    *)
+        echo "Usage: $0 <status|title|artist|progress|art>" >&2
+        exit 1
+        ;;
+esac
diff --git a/script/safe_wallpaper.sh b/script/safe_wallpaper.sh
deleted file mode 100755
index b5fb6e4..0000000
--- a/script/safe_wallpaper.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-WALLPAPER="$HOME/Pictures/safe_wallpaper/snow.jpg"
-awww img "$WALLPAPER" --transition-type center --transition-duration 0.5
-
diff --git a/script/safe_wallpaper.ysh b/script/safe_wallpaper.ysh
new file mode 100755
index 0000000..a040075
--- /dev/null
+++ b/script/safe_wallpaper.ysh
@@ -0,0 +1,5 @@
+#!/usr/bin/env ysh
+
+var HOME = ENV.HOME
+var WALLPAPER = "${HOME}/Pictures/safe_wallpaper/snow.jpg"
+awww img "$WALLPAPER" --transition-type center --transition-duration 0.5
diff --git a/script/search_apps.sh b/script/search_apps.ysh
similarity index 97%
rename from script/search_apps.sh
rename to script/search_apps.ysh
index c237ff9..f043314 100755
--- a/script/search_apps.sh
+++ b/script/search_apps.ysh
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env ysh
 
 TARGET=$1
 
diff --git a/script/status_of_slide.sh b/script/status_of_slide.ysh
similarity index 91%
rename from script/status_of_slide.sh
rename to script/status_of_slide.ysh
index f6547fb..b69f8e2 100755
--- a/script/status_of_slide.sh
+++ b/script/status_of_slide.ysh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env ysh
 
 systemctl --user status cycle_wallpaper.timer | grep "Active"
 
diff --git a/script/tlp-waybar-status.sh b/script/tlp-waybar-status.sh
deleted file mode 100755
index 617ef06..0000000
--- a/script/tlp-waybar-status.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/usr/bin/env bash
-
-tlp-stat -s | grep -Ei 'Power profile|TLP Profile' | awk '{print $4}' |
-  awk -F'/' '{m=$1=="performance"?"PRF":$1=="balanced"?"BAL":$1=="powersave"?"SAV":$1; print NF==2?m"/"$2:m}'
diff --git a/script/tlp-waybar-status.ysh b/script/tlp-waybar-status.ysh
new file mode 100755
index 0000000..9e356b1
--- /dev/null
+++ b/script/tlp-waybar-status.ysh
@@ -0,0 +1,6 @@
+#!/usr/bin/env ysh
+
+var awk_prog = '{m=$1=="performance"?"PRF":$1=="balanced"?"BAL":$1=="powersave"?"SAV":$1; print NF==2?m"/"$2:m}'
+
+tlp-stat -s | grep -Ei 'Power profile|TLP Profile' | awk '{print $4}' |
+  awk -F / $awk_prog
diff --git a/script/toggle_theme.sh b/script/toggle_theme.ysh
similarity index 66%
rename from script/toggle_theme.sh
rename to script/toggle_theme.ysh
index cb71edb..6c07d31 100755
--- a/script/toggle_theme.sh
+++ b/script/toggle_theme.ysh
@@ -1,11 +1,11 @@
-#!/usr/bin/env bash
+#!/usr/bin/env ysh
 
-CURRENT=$(gsettings get org.gnome.desktop.interface color-scheme 2>/dev/null)
+var CURRENT = $(gsettings get org.gnome.desktop.interface color-scheme 2>/dev/null)
 
-if [[ "$CURRENT" == *"dark"* ]]; then
+if (CURRENT.contains("dark")) {
     gsettings set org.gnome.desktop.interface color-scheme 'prefer-light'
     notify-send -i weather-clear "Theme" "Switched to Light Mode"
-else
+} else {
     gsettings set org.gnome.desktop.interface color-scheme 'prefer-dark'
     notify-send -i weather-clear-night "Theme" "Switched to Dark Mode"
-fi
+}