diff --git a/flake.lock b/flake.lock
index 75935cd2..0f238422 100644
--- a/flake.lock
+++ b/flake.lock
@@ -750,6 +750,22 @@
         "type": "github"
       }
     },
+    "nixpkgs_8": {
+      "locked": {
+        "lastModified": 1692221125,
+        "narHash": "sha256-nKUDlbLL8/WW3Fpx9Y0sY+LliTqU3/GexvHU9BdA8Qk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "214c9de8159b25f3cdc8374a80794d4d5787b4cf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_sirula": {
       "locked": {
         "lastModified": 1682879489,
@@ -766,6 +782,24 @@
         "type": "github"
       }
     },
+    "nur-ryan4yin": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_8"
+      },
+      "locked": {
+        "lastModified": 1692278646,
+        "narHash": "sha256-NkCUUzBiTVYP49KEa6IhYGcamaLSYlcSBTNJbNznJCM=",
+        "owner": "ryan4yin",
+        "repo": "nur-packages",
+        "rev": "1f16929bbe8545242be36d79f6bd5628e50569ea",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ryan4yin",
+        "repo": "nur-packages",
+        "type": "github"
+      }
+    },
     "nushell-scripts": {
       "flake": false,
       "locked": {
@@ -808,6 +842,7 @@
         "nixpkgs-darwin": "nixpkgs-darwin",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "nixpkgs-wayland": "nixpkgs-wayland",
+        "nur-ryan4yin": "nur-ryan4yin",
         "nushell-scripts": "nushell-scripts",
         "wallpapers": "wallpapers"
       }
diff --git a/flake.nix b/flake.nix
index 895cfb3d..a6358e4e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -315,6 +315,8 @@
     # secrets management, lock with git commit at 2023/7/15
     agenix.url = "github:ryantm/agenix/0d8c5325fc81daf00532e3e26c6752f7bcde1143";
 
+    ########################  Some non-flake repositories  #########################################
+
     # AstroNvim is an aesthetic and feature-rich neovim config.
     astronvim = {
       url = "github:AstroNvim/AstroNvim/v3.36.0";
@@ -327,6 +329,8 @@
       flake = false;
     };
 
+    ########################  My own repositories  #########################################
+
     # my private secrets, it's a private repository, you need to replace it with your own.
     # use ssh protocol to authenticate via ssh-agent/ssh-key, and shallow clone to save time
     mysecrets = {
@@ -340,6 +344,11 @@
       flake = false;
     };
 
+    nur-ryan4yin = {
+      url = "github:ryan4yin/nur-packages";
+      # inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     # riscv64 SBCs
     nixos-licheepi4a.url = "github:ryan4yin/nixos-licheepi4a";
     # nixos-jh7110.url = "github:ryan4yin/nixos-jh7110";
@@ -347,6 +356,8 @@
     # aarch64 SBCs
     nixos-rk3588.url = "github:ryan4yin/nixos-rk3588";
 
+    ########################  Color Schemes  #########################################
+
     # color scheme - catppuccin
     catppuccin-btop = {
       url = "github:catppuccin/btop";
@@ -395,6 +406,8 @@
     experimental-features = ["nix-command" "flakes"];
 
     substituters = [
+      # my own cache server
+      "https://ryan4yin.cachix.org"
       # replace official cache with a mirror located in China
       "https://mirrors.ustc.edu.cn/nix-channels/store"
       "https://cache.nixos.org"
@@ -408,6 +421,7 @@
       "https://nixpkgs-wayland.cachix.org"
     ];
     extra-trusted-public-keys = [
+      "ryan4yin.cachix.org-1:Gbk27ZU5AYpGS9i3ssoLlwdvMIh0NxG0w8it/cv9kbU="
       "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       "nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
diff --git a/home/linux/desktop/media.nix b/home/linux/desktop/media.nix
index db941c24..8152c3f5 100644
--- a/home/linux/desktop/media.nix
+++ b/home/linux/desktop/media.nix
@@ -1,6 +1,7 @@
 {
   pkgs,
   catppuccin-cava,
+  nur-ryan4yin,
   ...
 }:
 # media - control and enjoy audio/video
@@ -20,6 +21,8 @@
     vdpauinfo
     vulkan-tools
     glxinfo
+
+    nur-ryan4yin.packages.${pkgs.system}.yazi  # terminal file manager
   ];
 
   # https://github.com/catppuccin/cava