diff --git a/app/controllers/phlex_storybook/experiments_controller.rb b/app/controllers/phlex_storybook/experiments_controller.rb
index 5bedc44..4dc06f0 100644
--- a/app/controllers/phlex_storybook/experiments_controller.rb
+++ b/app/controllers/phlex_storybook/experiments_controller.rb
@@ -4,7 +4,7 @@ module PhlexStorybook
   class ExperimentsController < ApplicationController
     before_action :reject_unless_editable!
 
-    layout -> { Layouts::ApplicationLayout }
+    layout -> { turbo_frame_request? ? false : Layouts::ApplicationLayout }
 
     def preview
       respond_to do |format|
@@ -29,6 +29,21 @@ def show
       end
     end
 
+    def update
+      File.write(experiment, params[:ruby])
+
+      respond_to do |format|
+        format.turbo_stream do
+          render turbo_stream: [
+            turbo_stream.replace(
+              "experiment_preview",
+              Components::Experiments::ExperimentPreview.new(name: experiment_name),
+            ),
+          ]
+        end
+      end
+    end
+
     private
 
     def experiment
diff --git a/app/javascript/phlex_storybook/controllers/code_editor_controller.js b/app/javascript/phlex_storybook/controllers/code_editor_controller.js
index 66634a4..aa259c9 100644
--- a/app/javascript/phlex_storybook/controllers/code_editor_controller.js
+++ b/app/javascript/phlex_storybook/controllers/code_editor_controller.js
@@ -2,10 +2,21 @@ import { Controller } from "@hotwired/stimulus"
 import * as monaco from "monaco-editor"
 
 export default class extends Controller {
-  static targets = ["ruby"];
+  static targets = ["editor", "ruby"];
 
   connect() {
-    monaco.editor.create(this.element, {value: this.source(), language: "ruby", theme: "vs-dark"});
+    this.editor = monaco.editor.create(this.editorTarget, {
+      value: this.source(),
+      language: "ruby",
+      theme: "vs-dark",
+      scrollBeyondLastLine: false,
+      fontSize: 14,
+      automaticLayout: true,
+    });
+  }
+
+  saveSource() {
+    this.rubyTarget.textContent = this.editor.getValue();
   }
 
   source() {
diff --git a/config/routes.rb b/config/routes.rb
index c0a0623..bafd317 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -2,7 +2,7 @@
   root to: 'stories#index'
 
   resources :components, only: [:update]
-  resources :experiments, only: [:show] do
+  resources :experiments, only: [:show, :update] do
     member do
       get :preview
     end
diff --git a/lib/phlex_storybook/assets/phlex_storybook_application.css b/lib/phlex_storybook/assets/phlex_storybook_application.css
index 4ad0642..4aa374d 100644
--- a/lib/phlex_storybook/assets/phlex_storybook_application.css
+++ b/lib/phlex_storybook/assets/phlex_storybook_application.css
@@ -891,6 +891,10 @@ fieldset{
   right: 0px;
 }
 
+.row-span-3{
+  grid-row: span 3 / span 3;
+}
+
 .mb-4{
   margin-bottom: 1rem;
 }
@@ -941,6 +945,16 @@ fieldset{
   height: 1.25rem;
 }
 
+.size-6{
+  width: 1.5rem;
+  height: 1.5rem;
+}
+
+.size-8{
+  width: 2rem;
+  height: 2rem;
+}
+
 .h-fit{
   height: -moz-fit-content;
   height: fit-content;
@@ -1006,10 +1020,18 @@ fieldset{
   transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
 }
 
+.grid-flow-row{
+  grid-auto-flow: row;
+}
+
 .grid-cols-1{
   grid-template-columns: repeat(1, minmax(0, 1fr));
 }
 
+.grid-rows-6{
+  grid-template-rows: repeat(6, minmax(0, 1fr));
+}
+
 .flex-col{
   flex-direction: column;
 }
@@ -1063,6 +1085,11 @@ fieldset{
   background-color: rgb(243 244 246 / var(--tw-bg-opacity));
 }
 
+.bg-slate-500{
+  --tw-bg-opacity: 1;
+  background-color: rgb(100 116 139 / var(--tw-bg-opacity));
+}
+
 .bg-slate-600{
   --tw-bg-opacity: 1;
   background-color: rgb(71 85 105 / var(--tw-bg-opacity));
@@ -1103,6 +1130,16 @@ fieldset{
   padding: 0.5rem;
 }
 
+.px-0{
+  padding-left: 0px;
+  padding-right: 0px;
+}
+
+.px-1{
+  padding-left: 0.25rem;
+  padding-right: 0.25rem;
+}
+
 .px-2{
   padding-left: 0.5rem;
   padding-right: 0.5rem;
@@ -1189,6 +1226,10 @@ fieldset{
   color: rgb(255 255 255 / var(--tw-text-opacity));
 }
 
+.opacity-70{
+  opacity: 0.7;
+}
+
 .story-selector {
   ul{
     margin-bottom: 0.75rem;
@@ -1235,11 +1276,19 @@ li.story-button-active{
   color: rgb(75 85 99 / var(--tw-text-opacity));
 }
 
+.hover\:cursor-pointer:hover{
+  cursor: pointer;
+}
+
 .hover\:bg-blue-700:hover{
   --tw-bg-opacity: 1;
   background-color: rgb(29 78 216 / var(--tw-bg-opacity));
 }
 
+.hover\:opacity-100:hover{
+  opacity: 1;
+}
+
 .hover\:ring-1:hover{
   --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);
   --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color);
diff --git a/lib/phlex_storybook/components/experiments/experiment_display.rb b/lib/phlex_storybook/components/experiments/experiment_display.rb
index dbd491c..1ea30cd 100644
--- a/lib/phlex_storybook/components/experiments/experiment_display.rb
+++ b/lib/phlex_storybook/components/experiments/experiment_display.rb
@@ -4,8 +4,6 @@ module PhlexStorybook
   module Components
     module Experiments
       class ExperimentDisplay < ApplicationView
-        # include Phlex::Rails::Helpers::IframeTag
-
         def initialize(name:)
           @name = name
         end
@@ -19,10 +17,17 @@ def view_template
           end
 
           turbo_frame_tag("experiment_display") do
-            div(class: "flex flex-col h-screen max-h-screen", data: { controller: "story-display copy" }) do
-              render_header @name
-              div(class: "px-2 flex-1 overflow-y-scroll overflow-x-hidden") do
-                iframe(src: helpers.preview_experiment_path(@name), class: "w-full h-full")
+            form(data: { turbo_streams: true }, method: "PUT", action: helpers.experiment_path(@name)) do
+              div(class: "flex flex-col h-screen max-h-screen w-full", data: { controller: "code-editor" }) do
+                render_header @name
+
+                div(class: "grid grid-flow-row grid-rows-6 h-full w-full px-0") do
+                  div(class: "row-span-3 overflow-x-hidden") do
+                    render ExperimentEditor.new(name: @name)
+                  end
+
+                  render ExperimentPreview.new(name: @name)
+                end
               end
             end
           end
@@ -36,7 +41,15 @@ def blank_template
         end
 
         def render_header(text)
-          h2(class: "bg-slate-900 text-white border-x border-slate-700 p-2 flex-none") { text }
+          h2(class: "flex justify-between bg-slate-900 text-white border-x border-slate-700 p-2 flex-none") do
+            div { text.classify }
+            div do
+              button(
+                class: "px-1 opacity-70 hover:opacity-100 hover:cursor-pointer",
+                data: { action: "click->code-editor#saveSource" }
+              ) { render Icon.new(:Save, size: :md) }
+            end
+          end
         end
       end
     end
diff --git a/lib/phlex_storybook/components/experiments/experiment_editor.rb b/lib/phlex_storybook/components/experiments/experiment_editor.rb
new file mode 100644
index 0000000..74fb2fd
--- /dev/null
+++ b/lib/phlex_storybook/components/experiments/experiment_editor.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module PhlexStorybook
+  module Components
+    module Experiments
+      class ExperimentEditor < ApplicationView
+        def initialize(name:)
+          @name = name
+        end
+
+        def view_template
+          div id: "source", class: "h-full overflow-auto scroll", data: { code_editor_target: "editor" }
+          textarea(class: "hidden", data: { copy_target: "source", code_editor_target: "ruby" }, name: "ruby") do
+            source
+          end
+        end
+
+        private
+
+        def source
+          File.read(PhlexStorybook.configuration.experiment(@name))
+        end
+      end
+    end
+  end
+end
diff --git a/lib/phlex_storybook/components/experiments/experiment_preview.rb b/lib/phlex_storybook/components/experiments/experiment_preview.rb
new file mode 100644
index 0000000..dde9e73
--- /dev/null
+++ b/lib/phlex_storybook/components/experiments/experiment_preview.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+require 'digest'
+
+module PhlexStorybook
+  module Components
+    module Experiments
+      class ExperimentPreview < ApplicationView
+        def initialize(name:)
+          @name = name
+        end
+
+        def view_template
+          turbo_frame_tag("experiment_preview") do
+            div(class: "text-xs bg-slate-500 text-slate-100 w-full p-2") do
+              path = PhlexStorybook.configuration.experiment @name
+              "file: #{path}, md5: #{Digest::MD5.hexdigest(File.read(path))}"
+            end
+            div(class: "row-span-3 h-full w-full overflow-y-scroll overflow-x-hidden px-2") do
+              iframe(src: helpers.preview_experiment_path(@name), class: "w-full h-full")
+            end
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/phlex_storybook/components/icon.rb b/lib/phlex_storybook/components/icon.rb
index e820ed4..c2fd1a3 100644
--- a/lib/phlex_storybook/components/icon.rb
+++ b/lib/phlex_storybook/components/icon.rb
@@ -3,13 +3,20 @@
 module PhlexStorybook
   module Components
     class Icon < ApplicationView
-      def initialize(icon_class, inactive_class = nil, active: false)
-        @icon_class = inactive_class && !active ? inactive_class : icon_class
+      SIZES = {
+        sm: "size-4",
+        md: "size-6",
+        lg: "size-8",
+      }
+
+      def initialize(icon_class, inactive_class = nil, active: false, size: nil)
         @active     = active
+        @icon_class = inactive_class && !active ? inactive_class : icon_class
+        @size       = size || :sm
       end
 
       def view_template
-        render Phlex::Icons::Lucide.const_get(@icon_class).new(classes: "#{icon_color} size-4 inline")
+        render Phlex::Icons::Lucide.const_get(@icon_class).new(classes: "#{icon_color} #{SIZES[@size]} inline")
       end
 
       private
diff --git a/lib/phlex_storybook/layouts/application_layout.rb b/lib/phlex_storybook/layouts/application_layout.rb
index e33a1c2..42f8b95 100644
--- a/lib/phlex_storybook/layouts/application_layout.rb
+++ b/lib/phlex_storybook/layouts/application_layout.rb
@@ -22,10 +22,11 @@ def view_template(&)
             stylesheet_link_tag "phlex_storybook_application", media: "all"
             turbo_refreshes_with method: :morph, scroll: :preserve
           end
-          span(class: "fixed bottom-0 right-0 p-2 text-xs text-indigo-200") do
-            "v#{PhlexStorybook::VERSION}"
-          end
+
           body class: "bg-gray-100 text-gray-900 dark:bg-gray-900 dark:text-gray-100" do
+            span(class: "fixed bottom-0 right-0 p-2 text-xs text-indigo-200") do
+              "v#{PhlexStorybook::VERSION}"
+            end
             yield
           end
         end