diff --git a/layouts/index.html b/layouts/index.html
index ba34514..1e5ed0b 100644
--- a/layouts/index.html
+++ b/layouts/index.html
@@ -11,7 +11,7 @@
 <body class="lm">
   <header class="nav"><div class="wrap">
     <a class="brand" href="/"><img class="glyph" src="/img/logo.svg" width="32" height="32" alt="go-ndarray logo"> go-ndarray</a>
-    <nav><a href="#features">Why</a><a href="#check">Example</a><a href="#api">API</a><a href="#repos">Repositories</a><a href="/playground/">Playground</a></nav>
+    <nav><a href="#features">Why</a><a href="#check">Example</a><a href="#api">API</a><a href="#repos">Repositories</a></nav>
     {{ partial "theme-toggle.html" . }}
   </div></header>
   {{ partial "fork-ribbon.html" "https://github.com/go-ndarray/ndarray" }}
@@ -22,6 +22,7 @@ <h1 class="head">NumPy-style n-dimensional arrays in pure Go.<br><span class="ac
       <p class="sub"><b>go-ndarray</b> is the <code>numpy</code> equivalent for Go: a float64 n-dimensional array with creation routines, <b>strided views that share data</b>, broadcasting elementwise ops and ufuncs, reductions (incl. arg / cumulative / clip / where), manipulation, and linear algebra (a panel-packed, cache-blocked GEMM) — all in <b>pure Go, with cgo disabled</b>.</p>
       <div class="cta">
         <a class="btn btn-primary" href="https://go-ndarray.github.io/docs/">{{ partial "icons/book.html" . }}Read the documentation →</a>
+        <a class="btn btn-ghost" href="/playground/">{{ partial "icons/play.html" . }}Try it in your browser</a>
       </div>
       <div class="trust"><span><b>{{ len .Site.Params.families }}</b> API families, NumPy's names</span><span><b>6</b> SIMD targets</span><span><b>CGO=0</b> no BLAS shim</span></div>
     </div>
diff --git a/layouts/partials/icons/play.html b/layouts/partials/icons/play.html
new file mode 100644
index 0000000..371f53c
--- /dev/null
+++ b/layouts/partials/icons/play.html
@@ -0,0 +1,5 @@
+{{- /* Octicons "play" (16 px), @primer/octicons@19.15.0, copied verbatim, MIT,
+     (c) GitHub Inc.: the licence is OCTICONS-LICENSE beside this file.
+     currentColor follows the button in light and dark; aria-hidden, since
+     the button's text already says where it leads. */ -}}
+<svg class="icon" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false"><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Zm4.879-2.773 4.264 2.559a.25.25 0 0 1 0 .428l-4.264 2.559A.25.25 0 0 1 6 10.559V5.442a.25.25 0 0 1 .379-.215Z"/></svg>