Update shell.nix

shell.nix

@@ -1,38 +1,32 @@
-{ pkgs, ... }:
-let
-  pythonPackages = pkgs.python39Packages;
-  tex = (pkgs.texlive.combine {
-    inherit (pkgs.texlive)
-      scheme-small dvisvgm
-      amsmath hyperref comment;
-  });
-in pkgs.mkShell {
-  name = "python-venv";
-  venvDir = "./.venv";
-
-  packages = with pkgs; [ tex graphviz pdf2svg elan gnumake ];
-
-  buildInputs = [
-    # A Python interpreter including the 'venv' module is required to bootstrap
-    # the environment.
-    pythonPackages.python
-
-    # This executes some shell code to initialize a venv in $venvDir before
-    # dropping into the shell
-    pythonPackages.venvShellHook
-
-  ];
-
-  # Run this command, only after creating the virtual environment
-  postVenvCreation = ''
-    unset SOURCE_DATE_EPOCH
-    pip install -r requirements.txt
-  '';
-
-  # Now we can execute any commands within the virtual environment.
-  # This is optional and can be left out to run pip manually.
-  postShellHook = ''
-    # allow pip to install wheels
-    unset SOURCE_DATE_EPOCH
-  '';
-}
+{ pkgs, ... }:
+let pythonPackages = pkgs.python39Packages;
+in pkgs.mkShell {
+  name = "python-venv";
+  venvDir = "./.venv";
+
+  packages = with pkgs; [ texliveFull graphviz pdf2svg elan gnumake ];
+
+  buildInputs = [
+    # A Python interpreter including the 'venv' module is required to bootstrap
+    # the environment.
+    pythonPackages.python
+
+    # This executes some shell code to initialize a venv in $venvDir before
+    # dropping into the shell
+    pythonPackages.venvShellHook
+
+  ];
+
+  # Run this command, only after creating the virtual environment
+  postVenvCreation = ''
+    unset SOURCE_DATE_EPOCH
+    pip install -r requirements.txt
+  '';
+
+  # Now we can execute any commands within the virtual environment.
+  # This is optional and can be left out to run pip manually.
+  postShellHook = ''
+    # allow pip to install wheels
+    unset SOURCE_DATE_EPOCH
+  '';
+}