update shell.nix

shell.nix

@@ -2,22 +2,18 @@
 pkgs.mkShell
 {
   nativeBuildInputs = with pkgs; [
-    python312Packages.flask
-    python312Packages.flask-cors
-    python312Packages.requests
-    python312Packages.pandas
-    python312Packages.orjson
     hugo
-    tmux
-    mongodb-tools
-    python312Packages.uvicorn
-    python312Packages.fastapi
-    python312Packages.pymongo
+    python311
+    poetry
   ];
 
+  NIX_LD_LIBRARY_PATH=/run/current-system/sw/share/nix-ld/lib;
+  NIX_LD=/run/current-system/sw/share/nix-ld/lib/ld.so;
   shellHook = ''
     ${pkgs.cowsay}/bin/cowsay "Welcome to the baseddata.io development environment!" | ${pkgs.lolcat}/bin/lolcat
-
+    export LD_LIBRARY_PATH=$NIX_LD_LIBRARY_PATH
+    source .env
+    source .venv/bin/activate
     get_session=$(tmux list-session | grep "baseddata")
 
     if [ -z "$get_session" ];