Create flake.nix devShell, Start working on the default package too

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "Sketches in Quil";
+  description = "Reproducible Environment for anish.lakhwara.com";
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs";
@@ -8,14 +8,34 @@
 
   outputs = { self, nixpkgs, flake-utils }:
     flake-utils.lib.eachDefaultSystem (system:
-    let pkgs = nixpkgs.legacyPackages.${system};
-    in {
-      devShell = pkgs.mkShell { 
-        buildInputs = [ 
-          pkgs.leiningen 
-          pkgs.jdk11
-          pkgs.clojure
-        ]; 
-      };
-    });
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        my-python = pkgs.python3;
+        python-with-my-packages = my-python.withPackages (p: with p; [
+          icecream
+          python-ctags3
+          jinja2
+          click
+          pypandoc
+          # other python packages you want
+        ]);
+      in
+      {
+        devShell = pkgs.mkShell {
+          buildInputs = [
+            python-with-my-packages
+            pkgs.pandoc
+          ];
+          shellHook = ''
+            PYTHONPATH=${python-with-my-packages}/${python-with-my-packages.sitePackages}
+            # This only works when you have ~/vimwiki locally, since I'm not putting my unfiltered kitaab online
+            alias build='python3 src/kitaab-public/main.py'
+            # maybe set more env-vars
+          '';
+        };
+        defaultPackage = pkgs.buildPythonPackage {
+          # We should probably only call grab from main.py here
+
+        };
+      });
 }