feat: bump nixpkgs's stable version to nixos-23.05, add some useful packages

README.md

@@ -50,6 +50,9 @@ flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flat
 # install apps from flathub
 flatpak install netease-cloud-music-gtk
 
+# install 3d printer slicer - cura
+flatpak install flathub com.ultimaker.cura
+
 # or you can search apps from flathub
 flatpak search <keyword>
 # search on website is also supported: https://flathub.org/

flake.lock

@@ -475,16 +475,16 @@
     },
     "nixpkgs-stable_2": {
       "locked": {
-        "lastModified": 1684398685,
+        "lastModified": 1684782344,
-        "narHash": "sha256-TRE62m91iZ5ArVMgA+uj22Yda8JoQuuhc9uwZ+NoX+0=",
+        "narHash": "sha256-SHN8hPYYSX0thDrMLMWPWYulK3YFgASOrCsIL3AJ78g=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "628d4bb6e9f4f0c30cfd9b23d3c1cdcec9d3cb5c",
+        "rev": "8966c43feba2c701ed624302b6a935f97bcbdf88",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-22.11",
+        "ref": "nixos-23.05",
         "repo": "nixpkgs",
         "type": "github"
       }

flake.nix

@@ -35,12 +35,12 @@
     # flake inputs 有很多种引用方式，应用最广泛的是 github 的引用方式
 
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";       # 使用 nixos-unstable 分支 for nix flakes
-    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-22.11";    # unstable branch may be broken sometimes, use stable branch when necessary
+    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-23.05";    # unstable branch may be broken sometimes, use stable branch when necessary
     
     # nix users repository
     # used to install some packages not in nixpkgs
     # e.g. wechat-uos/qqmusic/dingtalk
-    nur.url = github:nix-community/NUR;
+    nur.url = "github:nix-community/NUR";
 
     home-manager.url = "github:nix-community/home-manager";
     #　follows 是　inputs 中的继承语法

modules/system.nix

@@ -111,6 +111,7 @@
     iperf3
     nmap
     socat
+    ldns  # replacement of dig, it provide the command `drill`
 
     # system tools
     sysstat