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diff --git a/flake.lock b/flake.lock
index 466497734f0b63c9e9ee86b3102a7f8779d154f1..ba243e20c8429d9e43ffd780ae6860f75db9cdb3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -115,6 +115,22 @@         "repo": "nixpkgs",
         "type": "github"
       }
     },
+    "nixpkgs-py36": {
+      "locked": {
+        "lastModified": 1616701903,
+        "narHash": "sha256-zYjmZqdfetp6XNbJcznCGGR8YkjcZ45c3Zy+Q0GrhMw=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "34f85de51bbc74595e63b22ee089adbb31f7c7a2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "34f85de51bbc74595e63b22ee089adbb31f7c7a2",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1691464053,
@@ -153,6 +169,7 @@         "flake-utils": "flake-utils",
         "home-manager": "home-manager_2",
         "jolheiser-nur": "jolheiser-nur",
         "nixpkgs": "nixpkgs_2",
+        "nixpkgs-py36": "nixpkgs-py36",
         "nur": "nur"
       }
     },

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diff --git a/flake.nix b/flake.nix
index 8471cd1726d66c37179d65e97156adc954ed0f66..733b8532980769e1b0724f4e4edac312a3422c16 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,6 +14,8 @@     flake-utils.url = "github:numtide/flake-utils";
 
     nur.url = "github:nix-community/nur";
     jolheiser-nur.url = "git+https://git.jojodev.com/jolheiser/nur";
+
+    nixpkgs-py36.url = "github:nixos/nixpkgs/34f85de51bbc74595e63b22ee089adbb31f7c7a2";
   };
 
   outputs = {
@@ -22,6 +24,7 @@     nixpkgs,
     home-manager,
     agenix,
     jolheiser-nur,
+    nixpkgs-py36,
     ...
   } @ inputs: let
     overlays = final: prev: {
@@ -73,6 +76,13 @@             agenix.nixosModules.default
             ./machines/common
             ./machines/chai
             commonConfig
+            ({pkgs, ...}: {
+              config.nixpkgs.overlays = [
+                (_: _: {
+                  py36 = import nixpkgs-py36 {inherit (pkgs) system;};
+                })
+              ];
+            })
             ({pkgs, ...}: {
               home-manager.users.${username}.programs = {
                 git.package = pkgs.gitSVN;

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diff --git a/machines/chai/default.nix b/machines/chai/default.nix
index 257a1fb9eff0a97bdd75baec2c45726305e6f8eb..ccbd57aab21902d38a392c210c9ac2a1bf1b4899 100644
--- a/machines/chai/default.nix
+++ b/machines/chai/default.nix
@@ -50,6 +50,9 @@     jetbrains.pycharm-professional
     jetbrains.idea-ultimate
     jetbrains.datagrip
     libxcrypt
+    py36.python36
+    py36.python36Packages.virtualenv
+    py36.python36Packages.psycopg2
     subversion
     teams-for-linux
     xorg.xauth