diff --git a/info-kit.html b/info-kit.html
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--- a/info-kit.html
+++ b/info-kit.html
@@ -4,7 +4,7 @@
 <meta charset="UTF-8" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <title>VARASYS PM_K‑1 Kit — wiring, parts &amp; firmware (Raspberry Pi Pico build)</title>
-<meta name="description" content="PM_K‑1 Kit — build a touchscreen polymeter metronome from a Raspberry Pi Pico on the 52Pi EP‑0172 breadboard kit (3.5in ST7796 cap‑touch, joystick, RGB, buzzer). Pinout, parts list, and the MicroPython firmware to flash." />
+<meta name="description" content="PM_K‑1 Kit — build a touchscreen polymeter metronome from a Raspberry Pi Pico on the 52Pi EP‑0172 breadboard kit (3.5in ST7796 cap‑touch, joystick, RGB, buzzer). Pinout, parts list, and the precompiled CircuitPython firmware bundle." />
 <link rel="icon" type="image/svg+xml" href="data:image/svg+xml;base64,@BUILD:favicon@">
 <script>
   (function(){ try{ var p = localStorage.getItem("metronome.theme");
@@ -40,7 +40,7 @@
 <main>
   <section class="info-hero">
     <h1>PM_K‑1 Kit</h1>
-    <p class="sub">Build it yourself: a Raspberry Pi Pico on the 52Pi breadboard kit becomes a touchscreen polymeter metronome — same engine, same program strings, with MicroPython firmware you flash in two minutes.</p>
+    <p class="sub">Build it yourself: a Raspberry Pi Pico on the 52Pi breadboard kit becomes a touchscreen polymeter metronome — same engine, same program strings, with a precompiled CircuitPython firmware bundle and one‑click updates over USB‑MIDI.</p>
   </section>
 
   /*@BUILD:include:src/infoembed.html@*/
@@ -52,11 +52,11 @@
     <b>Raspberry Pi Pico</b> seated on the <b>52Pi EP‑0172 "Pico Breadboard Kit Plus"</b>, which carries a
     3.5″ <b>ST7796</b> 320×480 capacitive‑touch screen (<b>GT911</b>), a PSP <b>joystick</b>, a <b>WS2812 RGB</b>
     LED, a <b>buzzer</b> and two buttons — all pre‑wired, so you don't solder anything; you just seat the Pico
-    and copy one file onto it.</p>
+    and drop the firmware bundle onto its USB drive.</p>
   <p>It runs the same <b>polymeter engine</b> and the same <b>program strings</b> as the web editor: design a
-    groove on the site, copy its program string into the firmware's <code>PROGRAMS</code> list, and it plays on
-    the device. Tap the screen, nudge tempo with the joystick; the RGB flashes each beat (amber accent / cyan
-    normal / violet ghost) and the buzzer clicks. Powered over the Pico's USB.</p>
+    groove on the site and <b>Save to device</b> over USB‑MIDI (or edit on the device's touchscreen — beats,
+    lanes, playlists), and it plays standalone. Tap the screen, nudge tempo with the joystick; the RGB shows
+    run/stop and the beat pulse, and the buzzer clicks. Powered over the Pico's USB.</p>
 </section>
 
 <details class="spec" open>
@@ -100,45 +100,15 @@
 </details>
 
 <details class="spec" open>
-  <summary>Firmware — flash it in two minutes</summary>
+  <summary>Firmware — self‑contained appliance (USB drive · on‑device editing · push programming · MIDI audio · practice log)</summary>
   <div class="spec-body">
-    <p>
-      <a class="dl" href="/pico-main.py" download="main.py">Download main.py ↓</a>
-      <a class="dl alt" href="https://codeberg.org/VARASYS/metronome/src/branch/main/pico" target="_blank" rel="noopener">Source + README ↗</a>
-    </p>
-    <p class="sub"><b>Two separate steps</b> — and <b><code>main.py</code> is not a drag‑and‑drop file.</b> The
-      <code>RPI‑RP2</code> drive only accepts a <code>.uf2</code> firmware file; a <code>.py</code> copied there is
-      discarded on reboot. You drag‑and‑drop the firmware once, then copy <code>main.py</code> over USB serial.</p>
-    <ol class="steps">
-      <li><b>Install MicroPython</b> (drag‑and‑drop, one time): hold <b>BOOTSEL</b>, plug the Pico into USB, and drop
-        the MicroPython <code>.uf2</code> onto the <code>RPI‑RP2</code> drive
-        (<a href="https://micropython.org/download/RPI_PICO/" target="_blank" rel="noopener">Pico</a> /
-        <a href="https://micropython.org/download/RPI_PICO2/" target="_blank" rel="noopener">Pico 2</a>). It reboots
-        on its own and the drive disappears — that's correct.</li>
-      <li><b>Copy <code>main.py</code></b> (the Pico is no longer a USB drive, so use a serial tool):
-        in <a href="https://thonny.org" target="_blank" rel="noopener">Thonny</a> pick the interpreter
-        <i>MicroPython (Raspberry Pi Pico)</i>, then <i>File ▸ Save as ▸ Raspberry Pi Pico</i> as <code>main.py</code>;
-        or <code>mpremote cp main.py :main.py</code>.</li>
-      <li>Reset — it boots straight into the metronome.</li>
-      <li>Add your own grooves by pasting program strings from the editor into the <code>PROGRAMS</code> list at the
-        top of <code>main.py</code>. If colours, touch, or the joystick look off, flip a flag in the
-        <code>CONFIG</code> block (see the README's calibration notes).</li>
-    </ol>
-    <p class="sub">It's one self‑contained file — the ST7796 driver, GT911 touch, WS2812 RGB, buzzer and the
-      polymeter engine, no external libraries.</p>
-  </div>
-</details>
-
-<details class="spec">
-  <summary>CircuitPython edition — self‑contained appliance (USB drive · push programming · MIDI audio · practice log)</summary>
-  <div class="spec-body">
-    <p class="sub">An alternative firmware that turns the Pico into a self‑contained appliance: it mounts as a
-      <b>USB drive</b> carrying the firmware, your tracks and an offline copy of this editor; drives a full
-      lanes/pads touchscreen; <b>logs your practice</b> to <code>history.json</code> on the device; takes new
+    <p class="sub">The firmware turns the Pico into a self‑contained appliance: it mounts as a
+      <b>USB drive</b> carrying the (precompiled) firmware, your tracks and an offline copy of this editor; drives
+      a full lanes/pads touchscreen with <b>on‑device editing</b> (tap beats, tap an instrument for the lane
+      editor, add/remove lanes, save/revert); <b>logs your practice</b> to <code>history.json</code>; takes new
       set lists <b>pushed from the editor over USB‑MIDI</b>; and plays out your <b>computer's speakers over
       USB‑MIDI</b>. By default the firmware owns the drive (read‑only to the computer — so it can log and
-      can't be accidentally erased); hold <b>button A</b> at power‑on for editor mode (drive writable). The
-      MicroPython firmware above stays the simple, rock‑solid option.</p>
+      can't be accidentally erased); hold <b>button A</b> at power‑on for editor mode (drive writable).</p>
     <p>
       <a class="dl" href="/pm_k1_circuitpy.zip" download>Download CircuitPython bundle ↓</a>
       <a class="dl alt" href="https://codeberg.org/VARASYS/metronome/src/branch/main/pico-cp" target="_blank" rel="noopener">Source + README ↗</a>