feat: 更新 flake.nix ，采用 venv 的方式生成环境，nixos用户也可以本机运行项目了

flake.lock

@@ -1,43 +1,21 @@
 {
   "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1741196730,
-        "narHash": "sha256-0Sj6ZKjCpQMfWnN0NURqRCQn2ob7YtXTAOTwCuz7fkA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "48913d8f9127ea6530a2a2f1bd4daa1b8685d8a3",
-        "type": "github"
+        "lastModified": 0,
+        "narHash": "sha256-nJj8f78AYAxl/zqLiFGXn5Im1qjFKU8yBPKoWEeZN5M=",
+        "path": "/nix/store/f30jn7l0bf7a01qj029fq55i466vmnkh-source",
+        "type": "path"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixos-24.11",
-        "repo": "nixpkgs",
-        "type": "github"
+        "id": "nixpkgs",
+        "type": "indirect"
       }
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "utils": "utils"
       }
     },
     "systems": {
@@ -54,6 +32,24 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -1,62 +1,37 @@
 {
   description = "MaiMBot Nix Dev Env";
-  # 本配置仅方便用于开发，但是因为 nb-cli 上游打包中并未包含 nonebot2，因此目前本配置并不能用于运行和调试
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
-    flake-utils.url = "github:numtide/flake-utils";
+    utils.url = "github:numtide/flake-utils";
   };
 
-  outputs =
-    {
-      self,
-      nixpkgs,
-      flake-utils,
-    }:
-    flake-utils.lib.eachDefaultSystem (
-      system:
-      let
-        pkgs = import nixpkgs {
-          inherit system;
-        };
+  outputs = {
+    self,
+    nixpkgs,
+    utils,
+    ...
+  }:
+    utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {inherit system;};
+      pythonPackages = pkgs.python3Packages;
+    in {
+      devShells.default = pkgs.mkShell {
+        name = "python-venv";
+        venvDir = "./.venv";
+        buildInputs = [
+          pythonPackages.python
+          pythonPackages.venvShellHook
+        ];
 
-        pythonEnv = pkgs.python3.withPackages (
-          ps: with ps; [
-            ruff
-            pymongo
-            python-dotenv
-            pydantic
-            jieba
-            openai
-            aiohttp
-            requests
-            urllib3
-            numpy
-            pandas
-            matplotlib
-            networkx
-            python-dateutil
-            APScheduler
-            loguru
-            tomli
-            customtkinter
-            colorama
-            pypinyin
-            pillow
-            setuptools
-          ]
-        );
-      in
-      {
-        devShell = pkgs.mkShell {
-          buildInputs = [
-            pythonEnv
-            pkgs.nb-cli
-          ];
-
-          shellHook = ''
-          '';
-        };
-      }
-    );
-}
+        postVenvCreation = ''
+          unset SOURCE_DATE_EPOCH
+          pip install -r requirements.txt
+        '';
+        
+        postShellHook = ''
+          # allow pip to install wheels
+          unset SOURCE_DATE_EPOCH
+        '';
+      };
+    });
+}