diff --git a/README.md b/README.md
index 9f3e7cd3..82072fc7 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,12 @@ Nix allows for easy to manage, collaborative, reproducible deployments. This mea
 After installed NixOS with `nix-command` & `flake` enabled, you can deploy this flake with the following command:
 
 ```bash
+# deploy my test configuration
 sudo nixos-rebuild switch .#nixos-test
+
+
+# deploy my PC's configuration
+sudo nixos-rebuild switch .#msi-rtx4090
 ```
 
 ## Other Interesting Dotfiles
@@ -26,5 +31,10 @@ Other configurations from where I learned and copied:
 
 - https://github.com/notwidow/hyprland
 - https://github.com/notusknot/dotfiles-nix
-
+- [xddxdd/nixos-config](https://github.com/xddxdd/nixos-config)
+- [bobbbay/dotfiles](https://github.com/bobbbay/dotfiles)
+- [gytis-ivaskevicius/nixfiles](https://github.com/gytis-ivaskevicius/nixfiles)
+- [fufexan/dotfiles](https://github.com/fufexan/dotfiles)
+- [davidak/nixos-config](https://codeberg.org/davidak/nixos-config)
+- [davidtwco/veritas](https://github.com/davidtwco/veritas)
 
diff --git a/flake.lock b/flake.lock
index 454b001f..50babab3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,22 +1,6 @@
 {
   "nodes": {
     "flake-compat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1673956053,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
-    "flake-compat_2": {
       "locked": {
         "lastModified": 1680531544,
         "narHash": "sha256-8qbiDTYb1kGaDADRXTItpcMKQ1TeQVkuof6oEwHUvVA=",
@@ -54,21 +38,6 @@
       }
     },
     "flake-utils": {
-      "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "flake-utils_2": {
       "inputs": {
         "systems": "systems"
       },
@@ -150,7 +119,7 @@
     },
     "lib-aggregate": {
       "inputs": {
-        "flake-utils": "flake-utils_2",
+        "flake-utils": "flake-utils",
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
@@ -170,7 +139,7 @@
     "nix-eval-jobs": {
       "inputs": {
         "flake-parts": "flake-parts",
-        "nixpkgs": "nixpkgs_4"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1682480188,
@@ -186,26 +155,6 @@
         "type": "github"
       }
     },
-    "nix-vscode-extensions": {
-      "inputs": {
-        "flake-compat": "flake-compat",
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
-      },
-      "locked": {
-        "lastModified": 1683248756,
-        "narHash": "sha256-jB11TQX+CKvH+MpPzAQbc5/OVg9D28zoBN4ZwmUUKiU=",
-        "owner": "nix-community",
-        "repo": "nix-vscode-extensions",
-        "rev": "288ddbb70b5befac24602bfe7e5d9fe09dfae8d0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nix-vscode-extensions",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1683014792,
@@ -239,10 +188,10 @@
     },
     "nixpkgs-wayland": {
       "inputs": {
-        "flake-compat": "flake-compat_2",
+        "flake-compat": "flake-compat",
         "lib-aggregate": "lib-aggregate",
         "nix-eval-jobs": "nix-eval-jobs",
-        "nixpkgs": "nixpkgs_5"
+        "nixpkgs": "nixpkgs_4"
       },
       "locked": {
         "lastModified": 1683289443,
@@ -259,22 +208,6 @@
       }
     },
     "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1675763311,
-        "narHash": "sha256-bz0Q2H3mxsF1CUfk26Sl9Uzi8/HFjGFD/moZHz1HebU=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "fab09085df1b60d6a0870c8a89ce26d5a4a708c2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_3": {
       "locked": {
         "lastModified": 1683194677,
         "narHash": "sha256-Am7aCGNy/h6RMnvg7Pn4PHQXZZq9FyIUA9klYxBwyDI=",
@@ -290,7 +223,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_4": {
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1681347147,
         "narHash": "sha256-B+hTioRc3Jdf4SJyeCiO0fW5ShIznJk2OTiW2vOV+mc=",
@@ -306,7 +239,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_5": {
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1683194677,
         "narHash": "sha256-Am7aCGNy/h6RMnvg7Pn4PHQXZZq9FyIUA9klYxBwyDI=",
@@ -326,8 +259,7 @@
       "inputs": {
         "home-manager": "home-manager",
         "hyprland": "hyprland",
-        "nix-vscode-extensions": "nix-vscode-extensions",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": "nixpkgs_2",
         "nixpkgs-wayland": "nixpkgs-wayland"
       }
     },
diff --git a/home/hyprland/default.nix b/home/hyprland/default.nix
index 4a7709a1..bdb7e40b 100644
--- a/home/hyprland/default.nix
+++ b/home/hyprland/default.nix
@@ -9,6 +9,8 @@
     # copy the scripts directory recursively
     recursive = true;
   };
+  home.file.".config/hypr/wallpapers/lockscreen.webp".source = ../wallpapers/lockscreen.webp;
+  home.file.".config/hypr/wallpapers/wallpaper.webp".source = ../wallpapers/wallpaper.webp;
 
   # allow fontconfig to discover fonts and configurations installed through home.packages
   fonts.fontconfig.enable = true;
diff --git a/home/hyprland/hypr-conf/scripts/lockscreen b/home/hyprland/hypr-conf/scripts/lockscreen
index 46fc2195..2ca73db1 100755
--- a/home/hyprland/hypr-conf/scripts/lockscreen
+++ b/home/hyprland/hypr-conf/scripts/lockscreen
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 # Background Image
-IMAGE="$HOME/.config/hypr/wallpapers/lockscreen.png"
+IMAGE="$HOME/.config/hypr/wallpapers/lockscreen.webp"
 
 # Colors
 bg='1e1e2e'		bgl='313244'		fg='d9e0ee'
diff --git a/home/hyprland/hypr-conf/scripts/startup b/home/hyprland/hypr-conf/scripts/startup
index b5178059..ed290cfb 100755
--- a/home/hyprland/hypr-conf/scripts/startup
+++ b/home/hyprland/hypr-conf/scripts/startup
@@ -14,7 +14,7 @@ done
 /usr/lib/xfce-polkit/xfce-polkit &
 
 # Set wallpaper
-swaybg --output '*' --mode fill --image ~/.config/hypr/wallpapers/wallpaper.png &
+swaybg --output '*' --mode fill --image ~/.config/hypr/wallpapers/wallpaper.webp &
 
 # Apply themes
 ~/.config/hypr/scripts/gtkthemes &
diff --git a/home/hyprland/hypr-conf/wallpapers/lockscreen.png b/home/hyprland/hypr-conf/wallpapers/lockscreen.png
deleted file mode 100644
index b7069360..00000000
Binary files a/home/hyprland/hypr-conf/wallpapers/lockscreen.png and /dev/null differ
diff --git a/home/hyprland/hypr-conf/wallpapers/wallpaper.png b/home/hyprland/hypr-conf/wallpapers/wallpaper.png
deleted file mode 100644
index 29578428..00000000
Binary files a/home/hyprland/hypr-conf/wallpapers/wallpaper.png and /dev/null differ
diff --git a/home/i3/config b/home/i3/config
index 3aeab746..2c63c153 100644
--- a/home/i3/config
+++ b/home/i3/config
@@ -346,7 +346,7 @@ exec --no-startup-id dex --autostart --environment i3
 
 # set wallpaper
 # exec --no-startup-id sleep 2 && nitrogen --restore
-exec --no-startup-id sleep 1 && feh --bg-fill ~/.config/i3/wallpaper.jpg
+exec --no-startup-id sleep 1 && feh --bg-fill ~/.config/i3/wallpaper.webp
 
 # set powersavings for display:
 exec --no-startup-id xset s 480 dpms 600 600 600
diff --git a/home/i3/default.nix b/home/i3/default.nix
index 4352a271..89b62315 100644
--- a/home/i3/default.nix
+++ b/home/i3/default.nix
@@ -7,7 +7,7 @@
   # 直接从当前文件夹中读取配置文件作为配置内容
 
   # wallpaper, binary file
-  home.file.".config/i3/wallpaper.jpg".source = ../../wallpaper.jpg;
+  home.file.".config/i3/wallpaper.webp".source = ../wallpapers/wallpaper.webp;
   home.file.".config/i3/config".source = ./config;
   home.file.".config/i3/i3blocks.conf".source = ./i3blocks.conf;
   home.file.".config/i3/keybindings".source = ./keybindings;
diff --git a/home/programs/media.nix b/home/programs/media.nix
index 6787a7bf..ef061113 100644
--- a/home/programs/media.nix
+++ b/home/programs/media.nix
@@ -14,6 +14,8 @@
     playerctl
     pulsemixer
 
+    ffmpeg-full
+
     # images
     viu  # terminal image viewer
     imv  # simple image viewer
diff --git a/home/wallpapers/convert_to_webp.nu b/home/wallpapers/convert_to_webp.nu
new file mode 100644
index 00000000..d6d5b1dd
--- /dev/null
+++ b/home/wallpapers/convert_to_webp.nu
@@ -0,0 +1,37 @@
+# convert all png/jpeg images to webp
+
+def to_webp [old_path: string, old_format: string] {
+  # 将后缀改为 .webp 得到新图片的 path
+  let webp_path = ($old_path | split row $old_format | append ".webp" | str collect)
+  # 使用 ffmpeg 进行格式转换
+  ffmpeg -y -i $old_path -c:v libwebp $webp_path
+  # 删除旧图片
+  rm $old_path
+}
+
+def replace_with_webp [old_path: string, old_format: string] {
+  # 将后缀改为 .webp 得到新图片的 path
+  let webp_path = ($old_path | split row $old_format | append ".webp" | str collect)
+  # 图片的旧名称与新名称
+  let old_name = ($old_path | path basename)
+  let webp_name = ($webp_path | path basename)
+  # 批量将 .md 文件中的所有图片名称，改为对应的 webp 图片名称
+  # 注：MacOS 需要首先安装好 gsed，Linux 请将下面的 gsed 替换为 sed
+  let cmd = $"gsed -ri 's/($old_name)/($webp_name)/g' `find . -name "*.md"`"
+  echo $cmd
+  bash -c $cmd
+}
+
+def convert_format(old_format: string) {
+    # 递归找出所有大于 10kib 的图片
+    let old_paths = (ls $"**/*($old_format)" | where size > 10kb | each {|it| $it.name})
+    $old_paths | to md | save --raw ./old_paths.txt
+
+    # 1. 执行图片格式转换与压缩，同时删除原图片
+    $old_paths | each { |it| to_webp $it $old_format }
+    # 2. 执行 .md 文档中的图片名称替换
+    $old_paths | each { |it| replace_with_webp $it $old_format }
+}
+
+convert_format ".png"
+convert_format ".jpg"
\ No newline at end of file
diff --git a/home/wallpapers/lockscreen.webp b/home/wallpapers/lockscreen.webp
new file mode 100644
index 00000000..f2d1b05f
Binary files /dev/null and b/home/wallpapers/lockscreen.webp differ
diff --git a/home/wallpapers/wallpaper-1.webp b/home/wallpapers/wallpaper-1.webp
new file mode 100644
index 00000000..d73bfee3
Binary files /dev/null and b/home/wallpapers/wallpaper-1.webp differ
diff --git a/home/wallpapers/wallpaper.webp b/home/wallpapers/wallpaper.webp
new file mode 100644
index 00000000..eb5d2a6f
Binary files /dev/null and b/home/wallpapers/wallpaper.webp differ
diff --git a/wallpaper.jpg b/wallpaper.jpg
deleted file mode 100755
index 0278c490..00000000
Binary files a/wallpaper.jpg and /dev/null differ