diff --git a/README.md b/README.md
index 23af5b3..f763fc8 100644
--- a/README.md
+++ b/README.md
@@ -1,61 +1,83 @@
 # Singular
 
-Install web apps as native apps, or just open a URL in a "temporary" app that
-closes and disappears forever on close.
+Singular is software for opening a web URL in a standalone process.
+
+It has two modes:
+- Install a web app as a "native" app on your OS
+- Open a URL in a temporary app which disappears forever on close
 
 WARNING: This is not production software yet, just scratching an itch and exploring
-alternative ways to use the web.
+alternative ways to use the web which go beyond what contemporary browsers do.
 
 <img src="screenshot.png">
 
-## Why
+## Ephemeral web apps
 
-I missed Nativeifer.
+Browsers are cognitively and emotionally heavy in so many ways - tabs, windows, product branding, company branding, "browser wars", extensions, history and link coloring, ads, surveillance and tracking, desktop vs mobile, sync, accounts, cookies, sessions...
 
-Desktop PWAs are not nearly sufficient as replacement (and are their own tire fire).
-I looked at the Nativefier code, and it's... massive and ancient.
+What if we let a URL stand alone to be itself, without the weight of an "environment" of a containing browser?
 
-This is a stab at the most minimal approach I could manage. No niceties.
+It doesn't remove all of the load of "browser", but this is an experiment in finding out how much, and what other trade-offs are made.
 
-Current status:
+But why do this in the first place? There are myriad reasons why I want to open a URL that is in an isolated process at the OS level, disconnected from my browser profile and not part of my tabs/windows world - feels like a 1000 cuts per day:
 
-- Only tested on macOS
+- Watching a one-off video without poisoning The Algorithm
+- Listening to some music without thinking about where it's coming from in a sea of tabs
+- Temporarily watching a page for changes in a way that I can get back to it easily
+- Working with some data or text where I need to switch back and forth rapidly between it and other web pages
 
-## Install an app
+Usage:
 
 - Open the app
-- Enter an app name (your choice)
 - Enter a URL
-- Click `Generate`
+- Click `Open as temporary app`
 
-An app is generated and zipped up, and you are prompted to download the zip file.
+## Installed web apps
+
+There are loads of websites I love to open as a standalone and persistent process so that they get some of the benefits of first-class treatment by the operating system.
 
-In the zip file is the generated app. Install it in whatever way your OS requires, or you prefer.
+I used Nativeifer for this for years, but they stopped developing it because browsers were supporting PWAs on desktop in a few ways. However, desktop PWAs are not nearly sufficient as replacement (and are their own tire fire). I looked at the Nativefier code, and it's... massive and ancient.
 
-## Open a URL with an ephemeral browser
+Also, relying on PWAs doesn't let me install the URLs *I* need - it leaves that choice to the browser and the publisher.
 
+This is a stab at the most minimal approach I could manage. No niceties yet, eg favicons.
 
+Usage:
+
+- Open the app
+- Enter an app name of your choice
+- Enter a URL
+- Click `Generate installable app`
+
+An app is generated and zipped up, and you are prompted to download the zip file.
+
+In the zip file is the generated app. Install it as you would any app for your OS.
+
+## Current status
+
+- DANGEROUS, no audits and missing all of the security UX of a full browser
+- Only tested on macOS
 
 ## TODO
 
-priority features
-- app icons
+Priority features
+- favicons -> app icons
 
-build/deploy
+Build/deploy
 - local build
 - remote build
 - auto release
 
-runtime
+Runtime
 - auto-update generated apps (eg electron version)
 - or tauri + webview, eg Pake?
 
-horizontality
+Horizontality
 - registry
 - un/install
 - cross-app comms layer
 
-extensibility
+Extensibility
 - web-extensions...
 
 ## Thanks
diff --git a/index.html b/index.html
index dd39b68..5e27eeb 100644
--- a/index.html
+++ b/index.html
@@ -14,28 +14,27 @@
     </div>
 
     <div>
-      <p>Create a standalone native app for a website.</p>
-      <!--
+      <p>Open a website as an ephemeral app or install it as a standalone native app.</p>
       <p>Proof of concept. Not intended for production use.</p>
-      -->
     </div>
 
     <form>
       <div class="form-container">
         <div class="form-row">
           <label for="name">Name</label>
-          <input class="name" type="text" placeholder="Example" pattern="\w{2,50}" required/>
+          <input class="name" type="text" placeholder="Example" pattern="\w{2,50}">
         </div>
         <div class="form-row">
           <label for="url">URL</label>
-          <input class="url" type="url" placeholder="https://example.com" required/>
+          <input class="url" type="url" placeholder="https://example.com" required>
         </div>
         <div class="form-row">
-          <button class="generate">Generate</button>
+          <button class="open">Open as ephemeral app</button>
+          <button class="generate">Generate installable app</button>
         </div>
         <div>
           <details>
-            <summary class="status">(I'm waiting for you to do something.)</summary>
+            <summary class="status">(I'm the log. Do something and I'll show you what's happening!)</summary>
           </details>
         </div>
         <div>
diff --git a/main.js b/main.js
index 4f737d4..6e3e0a1 100644
--- a/main.js
+++ b/main.js
@@ -29,7 +29,15 @@ process.on('uncaughtException', function(err) {
   console.error((err && err.stack) ? err.stack : err);
 });
 
-function createWindow() {
+const validURL = str => {
+  try {
+    return new URL(str);
+  } catch (err) {
+    return false;
+  }
+};
+
+function createAppWindow() {
   // Create the browser window.
   const mainWindow = new BrowserWindow({
     width: WIN_WIDTH,
@@ -46,7 +54,29 @@ function createWindow() {
   //mainWindow.webContents.openDevTools()
 }
 
+const openEphemeral = (url) => {
+  // spawn a new process to open the URL
+  openSelf(url);
+  console.log('self opened');
+
+  // exit this process
+  app.quit()
+  console.log('app quit');
+}
+
 function openURL(url) {
+  console.log('opening', url);
+
+  // Validation on the front-end but give it a nod anyway
+  if (!url || !validURL(url)) {
+    const errmsg = `URL is bad`;
+    console.error(errmsg);
+    felo('fail', errmsg);
+    return;
+  }
+
+  console.log('Input validated');
+
   // Create the browser window.
   const mainWindow = new BrowserWindow({
     width: 800,
@@ -63,21 +93,15 @@ function openURL(url) {
   // mainWindow.webContents.openDevTools()
 }
 
-const validURL = str => {
-  try {
-    return new URL(str);
-  } catch (err) {
-    return false;
-  }
-};
+ipcMain.on('open', (e, msg) => openEphemeral(msg.url));
 
 // front-end logger
 const felo = (type, text) =>
   BrowserWindow.getAllWindows()[0]
     .webContents.send(type, text );
 
+// Generate app package, zip it, and trigger download
 const generate = async opts => {
-
   const { name, url } = opts;
   console.log('generating', name, url);
 
@@ -166,8 +190,6 @@ ipcMain.on('generate', (e, msg) => generate(msg));
 const initTempProfile = () => {
   const PROFILE = `p${Date.now()}`;
 
-  console.log('PROFILE', PROFILE);
-
   // Profile dirs are subdir of userData dir
   // ..................................... ↓ we set this per profile
   //
@@ -179,26 +201,13 @@ const initTempProfile = () => {
   //
   // {home} / {appData} / {userData} / {profileDir} / {sessionData}
 
-
-  // specify various app data paths and make if not exist
   const appDataPath = app.getPath('appData');
   const userDataPath = app.getPath('userData');
-  //const profileDataPath = path.join(userDataPath, PROFILE);
-  //const sessionDataPath = path.join(profileDataPath, 'chromium');
-
-  console.log('adp', app.getPath('appData'));
-  console.log('udp', app.getPath('userData'));
 
   const tempDir = app.getPath('temp');
-  console.log('tempDir', tempDir);
 
   const tempAppDataPath = path.join(tempDir, PROFILE);
   app.setPath('appData', tempAppDataPath);
-
-  console.log('adp', app.getPath('appData'));
-  console.log('udp', app.getPath('userData'));
-  //console.log('pdp', profileDataPath);
-  //console.log('sdp', sessionDataPath);
 };
 
 const getAppPath = () => {
@@ -270,12 +279,7 @@ app.whenReady().then(() => {
       console.error('Bad URL');
     }
     else {
-      openSelf(url);
-      console.log('self opened');
-    
-      // exit
-      app.quit()
-      console.log('app quit');
+      openEphemeral(url);
     }
   }
   // We're a temporary spawn to open a URL
@@ -291,12 +295,12 @@ app.whenReady().then(() => {
   }
   // Window for generating and installing URL as app
   else {
-    createWindow();
+    createAppWindow();
 
     app.on('activate', function () {
       // On macOS it's common to re-create a window in the app when the
       // dock icon is clicked and there are no other windows open.
-      if (BrowserWindow.getAllWindows().length === 0) createWindow()
+      if (BrowserWindow.getAllWindows().length === 0) createAppWindow()
     });
   }
 });
diff --git a/package.json b/package.json
index 3b6f08d..aaf7d04 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "Singular",
   "version": "1.0.0",
-  "description": "A minimal Electron application which generates and installs a minimal Electron application which loads a single URL.",
+  "description": "A minimal Electron application which runs or installs a minimal Electron application which loads a single URL.",
   "type": "module",
   "main": "main.js",
   "scripts": {
diff --git a/preload.js b/preload.js
index dc65fad..2d0cf12 100644
--- a/preload.js
+++ b/preload.js
@@ -24,7 +24,15 @@ const init = () => {
       .forEach(d => d.classList.toggle('animating'));
   };
 
-  const onSubmit = () => {
+  const onOpen = () => {
+    log('Opening the app...');
+    const url = document.querySelector('.url');
+    ipcRenderer.send('open', {
+      url: url.value
+    });
+  };
+
+  const onGenerate = () => {
     log('Here we go...');
     toggleSpinner();
     btn.disabled = true;
@@ -49,7 +57,16 @@ const init = () => {
 
   form.addEventListener('submit', e => {
     e.preventDefault();
-    onSubmit();
+    // Did they click the open button or the generate button?
+    const clickedButton = e.submitter;
+    if (clickedButton.classList.contains('open')) {
+      log('Opening the app...');
+      onOpen();
+    }
+    else if (clickedButton.classList.contains('generate')) {
+      log('Generating the app...');
+      onGenerate();
+    }
   });
 
   ipcRenderer.on('victory', (e, msg) => {
diff --git a/styles.css b/styles.css
index 338789a..b2290b3 100644
--- a/styles.css
+++ b/styles.css
@@ -107,6 +107,10 @@ input {
   padding: 0.2rem;
 }
 
+button {
+  margin-right: 0.2rem;
+}
+
 /* log */
 details, summary {
   font-size: small;