diff --git a/README.org b/README.org
index 5ae0266..9f2c6f6 100644
--- a/README.org
+++ b/README.org
@@ -302,7 +302,8 @@ mkShell {
     flutter
   ];
   shellHook = ''
-    FLUTTER_SDK_DIR=${flutter}/bin/cache/dart-sdk/
+    export FLUTTER_SDK_DIR=${flutter}/bin/cache/dart-sdk/
+    export PATH="$HOME/.pub-cache/bin":"$PATH"
   '';
 }
 #+END_SRC
@@ -939,6 +940,17 @@ in {
 with lib;
 with lib.types;
 let cfg = config.modules.docker;
+
+    myDockerNuke = pkgs.writeShellScriptBin "docker-nuke" ''
+      docker stop $(docker ps -aq)
+      docker rm $(docker ps -aq)
+
+      docker network prune -f
+      docker rmi -f $(docker images --filter dangling=true -qa)
+      docker volume rm $(docker volume ls --filter dangling=true -q)
+      docker rmi -f $(docker images -qa)
+    '';
+    
 in {
   options.modules.docker = {
     enable = mkOption {
@@ -960,6 +972,7 @@ in {
     
     # Add docker extensions.
     environment.systemPackages = [
+      myDockerNuke
       pkgs.docker-compose
       pkgs.docker-machine
     ];
@@ -984,6 +997,7 @@ with lib;
 with lib.types;
 let
   cfg = config.modules.firefox;
+  
   myFirefox = pkgs.writeShellScriptBin "firefox" ''
     HOME=~/.local/share/mozilla ${pkgs.firefox-bin}/bin/firefox
   '';
diff --git a/modules/docker.nix b/modules/docker.nix
index 1df6719..cc3189b 100644
--- a/modules/docker.nix
+++ b/modules/docker.nix
@@ -4,6 +4,17 @@
 with lib;
 with lib.types;
 let cfg = config.modules.docker;
+
+    myDockerNuke = pkgs.writeShellScriptBin "docker-nuke" ''
+      docker stop $(docker ps -aq)
+      docker rm $(docker ps -aq)
+
+      docker network prune -f
+      docker rmi -f $(docker images --filter dangling=true -qa)
+      docker volume rm $(docker volume ls --filter dangling=true -q)
+      docker rmi -f $(docker images -qa)
+    '';
+    
 in {
   options.modules.docker = {
     enable = mkOption {
@@ -25,6 +36,7 @@ in {
     
     # Add docker extensions.
     environment.systemPackages = [
+      myDockerNuke
       pkgs.docker-compose
       pkgs.docker-machine
     ];