diff --git a/scripts/install.sh b/scripts/install.sh
index 836b8f1..599c02a 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -202,7 +202,7 @@ main() {
   fi
   ok "✅ Node $(node --version)"
 
-  local meta tarball extract_dir version_dir launcher
+  local meta tarball extract_dir version_dir launcher command_hint
   CLEANUP_DIR="$(mktemp -d "${TMPDIR:-/tmp}/clawfix-install.XXXXXX")"
   tmp="$CLEANUP_DIR"
   trap 'rm -rf "${CLEANUP_DIR:-}"' EXIT
@@ -259,8 +259,13 @@ EOF
   log "   Binary:  $launcher"
   log ""
 
+  command_hint="$launcher"
   case ":${PATH}:" in
-    *":${BIN_DIR}:"*) ;;
+    *":${BIN_DIR}:"*)
+      if [ "$(command -v clawfix 2>/dev/null || true)" = "$launcher" ]; then
+        command_hint="clawfix"
+      fi
+      ;;
     *)
       warn "⚠️  ${BIN_DIR} is not on PATH"
       log "   Add this to your shell profile:"
@@ -269,18 +274,13 @@ EOF
       ;;
   esac
 
-  if command -v clawfix >/dev/null 2>&1; then
-    ok "✅ Ready: clawfix --version"
-    clawfix --version || true
-  else
-    ok "✅ Ready: ${launcher} --version"
-    "$launcher" --version || true
-  fi
+  ok "✅ Verifying installed binary: ${launcher} --version"
+  "$launcher" --version || die "Installed ClawFix failed its version check"
 
   log ""
   info "Next:"
-  log "  clawfix --dry-run"
-  log "  clawfix"
+  log "  ${command_hint} --dry-run"
+  log "  ${command_hint}"
   log ""
 }
 
diff --git a/src/landing.js b/src/landing.js
index 6b592dc..65f7c0f 100644
--- a/src/landing.js
+++ b/src/landing.js
@@ -509,11 +509,11 @@ const LANDING_HTML = `<!DOCTYPE html>
 
         <div class="command-box">
           <span class="prompt">$</span>
-          <code id="cmd-install"><span>curl -fsSL</span> <span>https://clawfix.dev/install</span> <span>-o install.sh</span></code>
-          <button type="button" class="copy-btn" id="copyBtn-install" aria-live="polite" onclick="copyCommand('install')">Copy</button>
+          <code id="cmd-install"><span>curl -fsSL</span> <span>https://clawfix.dev/install</span> <span>-o install.sh</span> <span>&amp;&amp; bash install.sh</span></code>
+          <button type="button" class="copy-btn" id="copyBtn-install" data-copy-command="install" aria-live="polite">Copy</button>
         </div>
         <p class="command-hint" style="margin-bottom: 6px;">
-          <strong style="color:var(--green)">Recommended</strong> Verify with <code>shasum -a 256 install.sh</code> against <a href="/install/sha256">the published hash</a>, then run <code>bash install.sh</code>. No global npm.
+          <strong style="color:var(--green)">Recommended</strong> Downloads and runs the installer. To inspect first, omit <code>&amp;&amp; bash install.sh</code>, verify with <code>shasum -a 256 install.sh</code> against <a href="/install/sha256">the published hash</a>, then run it. No global npm.
         </p>
         <p class="command-hint" style="margin-bottom: 18px;">
           Prefer npm? <code id="cmd-npx">npx clawfix@0.12.0</code> · Dry run: <code>npx clawfix@0.12.0 --dry-run</code> · macOS, Linux, WSL · <span style="white-space:nowrap">Node.js 22+</span>
@@ -870,14 +870,53 @@ gateway-not-running repair. Want me to?
   </footer>
 
   <script>
-    function copyCommand(type) {
-      const cmd = document.getElementById('cmd-' + type).textContent;
-      navigator.clipboard.writeText(cmd).then(() => {
-        const btn = document.getElementById('copyBtn-' + type);
-        btn.textContent = 'Copied!';
-        setTimeout(() => { btn.textContent = 'Copy'; }, 2000);
-      });
-    }
+    function copyTextFallback(text) {
+      const textarea = document.createElement('textarea');
+      textarea.value = text;
+      textarea.setAttribute('readonly', '');
+      textarea.style.position = 'fixed';
+      textarea.style.opacity = '0';
+      textarea.style.pointerEvents = 'none';
+      document.body.appendChild(textarea);
+      textarea.select();
+      textarea.setSelectionRange(0, text.length);
+
+      try {
+        return Boolean(document.execCommand && document.execCommand('copy'));
+      } catch {
+        return false;
+      } finally {
+        document.body.removeChild(textarea);
+      }
+    }
+
+    async function copyCommand(type) {
+      const command = document.getElementById('cmd-' + type);
+      const btn = document.getElementById('copyBtn-' + type);
+      if (!command || !btn) return false;
+
+      const text = command.textContent;
+      let copied = false;
+
+      if (navigator.clipboard && typeof navigator.clipboard.writeText === 'function') {
+        try {
+          await navigator.clipboard.writeText(text);
+          copied = true;
+        } catch {
+          copied = false;
+        }
+      }
+
+      if (!copied) copied = copyTextFallback(text);
+
+      btn.textContent = copied ? 'Copied!' : 'Copy failed';
+      setTimeout(() => { btn.textContent = 'Copy'; }, 2000);
+      return copied;
+    }
+
+    document.querySelectorAll('[data-copy-command]').forEach((button) => {
+      button.addEventListener('click', () => copyCommand(button.dataset.copyCommand));
+    });
   </script>
 </body>
 </html>`;
diff --git a/test/install-script.test.js b/test/install-script.test.js
index f034a6e..f3455b7 100644
--- a/test/install-script.test.js
+++ b/test/install-script.test.js
@@ -90,8 +90,16 @@ test('install script installs a pinned package into a local prefix without npm i
   const packDir = join(packRoot, 'package');
   const prefix = join(work, 'prefix');
   const binDir = join(work, 'bin');
+  const oldBinDir = join(work, 'old-bin');
+  let server;
   try {
-    await run('mkdir', ['-p', packDir, join(registryRoot, 'clawfix'), prefix, binDir]);
+    await run('mkdir', ['-p', packDir, join(registryRoot, 'clawfix'), prefix, binDir, oldBinDir]);
+
+    await writeFile(
+      join(oldBinDir, 'clawfix'),
+      '#!/usr/bin/env bash\necho "clawfix v0.9.0-old"\n',
+    );
+    await chmod(join(oldBinDir, 'clawfix'), 0o755);
 
     // Minimal package matching published clawfix bin layout
     const pkg = {
@@ -129,7 +137,7 @@ test('install script installs a pinned package into a local prefix without npm i
 
     // Fake registry HTTP server
     const tarballBytes = await readFile(tarball);
-    const server = createServer((req, res) => {
+    server = createServer((req, res) => {
       if (req.url === '/clawfix/0.10.0') {
         res.setHeader('content-type', 'application/json');
         res.end(JSON.stringify({
@@ -161,11 +169,14 @@ test('install script installs a pinned package into a local prefix without npm i
       CLAWFIX_PREFIX: prefix,
       CLAWFIX_BIN_DIR: binDir,
       CLAWFIX_REGISTRY: registry,
-      PATH: `${binDir}:${process.env.PATH}`,
+      PATH: `${oldBinDir}:${binDir}:${process.env.PATH}`,
       HOME: work,
     });
 
     assert.equal(result.code, 0, result.stdout + result.stderr);
+    assert.match(result.stdout, /clawfix v0\.10\.0-test/);
+    assert.doesNotMatch(result.stdout, /clawfix v0\.9\.0-old/);
+    assert.match(result.stdout, new RegExp(`${join(binDir, 'clawfix')} --dry-run`));
     await access(join(binDir, 'clawfix'));
     await access(join(prefix, 'versions/0.10.0/bin/clawfix.js'));
 
@@ -173,8 +184,12 @@ test('install script installs a pinned package into a local prefix without npm i
     assert.equal(version.code, 0, version.stderr);
     assert.match(version.stdout, /clawfix v0\.10\.0-test/);
 
-    server.close();
   } finally {
+    if (server?.listening) {
+      await new Promise((resolve, reject) => {
+        server.close(error => error ? reject(error) : resolve());
+      });
+    }
     await rm(work, { recursive: true, force: true });
   }
 });
diff --git a/test/landing-install.test.js b/test/landing-install.test.js
new file mode 100644
index 0000000..8952d9d
--- /dev/null
+++ b/test/landing-install.test.js
@@ -0,0 +1,164 @@
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import test from 'node:test';
+import vm from 'node:vm';
+
+const landingPath = new URL('../src/landing.js', import.meta.url);
+
+async function readLandingSource() {
+  return readFile(landingPath, 'utf8');
+}
+
+function installCommandFrom(source) {
+  const match = source.match(/<code id="cmd-install">([\s\S]*?)<\/code>/);
+  assert.ok(match, 'install command exists');
+  return match[1]
+    .replace(/<[^>]+>/g, '')
+    .replaceAll('&amp;', '&')
+    .replace(/\s+/g, ' ')
+    .trim();
+}
+
+function copyScriptFrom(source) {
+  const scripts = [...source.matchAll(/<script>([\s\S]*?)<\/script>/g)];
+  assert.ok(scripts.length > 0, 'copy script exists');
+  return scripts.at(-1)[1];
+}
+
+test('primary website command downloads and runs the installer', async () => {
+  const landing = await readLandingSource();
+  const command = installCommandFrom(landing);
+
+  assert.equal(
+    command,
+    'curl -fsSL https://clawfix.dev/install -o install.sh && bash install.sh',
+  );
+  assert.doesNotMatch(command, /curl[^\n]*\|\s*(?:ba)?sh/);
+  assert.doesNotMatch(landing, /onclick="copyCommand/);
+});
+
+async function createCopyHarness({ clipboard, execCommand = () => true } = {}) {
+  const landing = await readLandingSource();
+  const command = { textContent: installCommandFrom(landing) };
+  let clickHandler;
+  const button = {
+    dataset: { copyCommand: 'install' },
+    textContent: 'Copy',
+    addEventListener(event, handler) {
+      assert.equal(event, 'click');
+      clickHandler = handler;
+    },
+  };
+  const textarea = {
+    style: {},
+    value: '',
+    selected: false,
+    setAttribute() {},
+    select() { this.selected = true; },
+    setSelectionRange() {},
+  };
+  let appended = false;
+  let removed = false;
+  let resetButton;
+
+  const document = {
+    body: {
+      appendChild(node) {
+        assert.equal(node, textarea);
+        appended = true;
+      },
+      removeChild(node) {
+        assert.equal(node, textarea);
+        removed = true;
+      },
+    },
+    createElement(tag) {
+      assert.equal(tag, 'textarea');
+      return textarea;
+    },
+    execCommand(commandName) {
+      assert.equal(commandName, 'copy');
+      return execCommand(commandName);
+    },
+    querySelectorAll(selector) {
+      assert.equal(selector, '[data-copy-command]');
+      return [button];
+    },
+    getElementById(id) {
+      if (id === 'cmd-install') return command;
+      if (id === 'copyBtn-install') return button;
+      return null;
+    },
+  };
+
+  const context = vm.createContext({
+    document,
+    navigator: clipboard ? { clipboard } : {},
+    setTimeout(callback) {
+      resetButton = callback;
+      return 1;
+    },
+  });
+  vm.runInContext(copyScriptFrom(landing), context);
+
+  assert.equal(typeof clickHandler, 'function');
+  return {
+    button,
+    click: clickHandler,
+    command,
+    get appended() { return appended; },
+    get removed() { return removed; },
+    get resetButton() { return resetButton; },
+    textarea,
+  };
+}
+
+test('copy button falls back when the Clipboard API is unavailable', async () => {
+  const harness = await createCopyHarness();
+  const copied = await harness.click();
+
+  assert.equal(copied, true);
+  assert.equal(harness.textarea.value, harness.command.textContent);
+  assert.equal(harness.textarea.selected, true);
+  assert.equal(harness.appended, true);
+  assert.equal(harness.removed, true);
+  assert.equal(harness.button.textContent, 'Copied!');
+  harness.resetButton();
+  assert.equal(harness.button.textContent, 'Copy');
+});
+
+test('copy button falls back when Clipboard API permission is rejected', async () => {
+  let attemptedText;
+  const harness = await createCopyHarness({
+    clipboard: {
+      async writeText(text) {
+        attemptedText = text;
+        throw new Error('clipboard permission denied');
+      },
+    },
+  });
+
+  const copied = await harness.click();
+
+  assert.equal(attemptedText, harness.command.textContent);
+  assert.equal(copied, true);
+  assert.equal(harness.textarea.value, harness.command.textContent);
+  assert.equal(harness.removed, true);
+  assert.equal(harness.button.textContent, 'Copied!');
+});
+
+test('copy button reports failure when both clipboard paths fail', async () => {
+  const harness = await createCopyHarness({
+    execCommand() {
+      throw new Error('legacy copy denied');
+    },
+  });
+
+  const copied = await harness.click();
+
+  assert.equal(copied, false);
+  assert.equal(harness.removed, true);
+  assert.equal(harness.button.textContent, 'Copy failed');
+  harness.resetButton();
+  assert.equal(harness.button.textContent, 'Copy');
+});