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diff --git a/flake.nix b/flake.nix
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+{
+  description = "A very basic flake for developing in python";
+  # Provides abstraction to boiler-code when specifying multi-platform outputs.
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:nixos/nixpkgs";
+  };
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = nixpkgs.legacyPackages.${system};
+      venvDir = "./.venv";
+      pythonPackages = pkgs.python38Packages;
+    in {
+      devShell = pkgs.mkShell {
+        nativeBuildInputs = with pkgs; [
+          hello
+          pythonPackages.python
+        ];
+        shellHook = ''
+          SOURCE_DATE_EPOCH=$(date +%s)
+
+          if [ -d "${venvDir}" ]; then
+            echo "Skipping venv creation, '${venvDir}' already exists"
+          else
+            echo "Creating new venv environment in path: '${venvDir}'"
+            # Note that the module venv was only introduced in python 3, so for 2.7
+            # this needs to be replaced with a call to virtualenv
+            ${pythonPackages.python.interpreter} -m venv "${venvDir}"
+          fi
+
+          # Under some circumstances it might be necessary to add your virtual
+          # environment to PYTHONPATH, which you can do here too;
+          # PYTHONPATH=$PWD/${venvDir}/${pythonPackages.python.sitePackages}/:$PYTHONPATH
+
+          source "${venvDir}/bin/activate"
+
+          # As in the previous example, this is optional.
+          pip install -r requirements.txt
+        '';
+      };
+    });
+}