diff --git a/TODO.md b/TODO.md
index 67c4dac..88c7d78 100644
--- a/TODO.md
+++ b/TODO.md
@@ -22,24 +22,14 @@ What 1.0 was waiting on is in the product: Preferences, `.wimport`, Explorer and
 previews, the public documentation site, and Finger drawing (default when no pen is
 detected). The Store listing was submitted by hand on 20 August 2026 for 0.9.2.
 
-One item remains. The release manifests, winget, and Store submission are done: the
-manifests are live at <https://whiteboard.sqlbi.com/stable.json>, the first winget
-submission is in review, and the pipeline's Store stage submits each promoted release.
-All three are described in [docs/release-management.md](docs/release-management.md).
-
-## 1. Video teaser
-
-A short recording that shows what the application does. Ink following a pen, containers
-carrying their strokes, and LiveView all need motion to read. The landing page, the Store
-listing, and any announcement all need the same clip.
-
-The home page already has a Vimeo embed (`site/index.html`) with tracking stripped
-(`dnt=1`, no `player.js`). The id `763673561` is a placeholder. When the real clip is
-published, replace that id only. Do not add YouTube or a self-hosted file.
-
-Record against the current UI: Preferences, Finger drawing, the tab strip, LiveView
-freeze/disconnect/reconnect, and a `.wimport` drop. The campaign hero on the home page
-stays through 14 September 2026; the teaser is independent of that art.
+No numbered work remains. The video teaser is recorded and served from the landing page
+itself as `site/teaser-av1.mp4` / `site/teaser-h264.mp4` — the Vimeo-embed plan was
+reversed, see decision 19 in [docs/decisions.md](docs/decisions.md); the production
+script and staging assets are in `docs/teaser/`. The release manifests, winget, and
+Store submission are done: the manifests are live at
+<https://whiteboard.sqlbi.com/stable.json>, the first winget submission is in review,
+and the pipeline's Store stage submits each promoted release. All three are described
+in [docs/release-management.md](docs/release-management.md).
 
 ## Waiting on the first winget submission
 
diff --git a/docs/decisions.md b/docs/decisions.md
index 143d49a..f8574c5 100644
--- a/docs/decisions.md
+++ b/docs/decisions.md
@@ -297,6 +297,35 @@ on every merge to `main`, so both are caught before anything is signed or publis
 reduction is expressed in the workflow that wants it, not in the script, so nothing that
 ships can inherit it by accident.
 
+## 19. The teaser video is a file on the site, not an embed
+
+**Implemented.**
+
+The original plan was a Vimeo embed with tracking stripped (`dnt=1`, no player script),
+deliberately excluding YouTube and self-hosted files. It was reversed when the clip
+existed, for three reasons:
+
+- Vimeo is blocked or unreliable in several regions; an embed shows those visitors a dead
+  frame. A file served with the page plays wherever the page loads.
+- The embed was the only third party on the privacy page. Removing it makes "static HTML,
+  no third parties" true without a footnote.
+- The bandwidth argument for an embed did not survive the numbers. The clip is 42 seconds
+  of mostly still screen content: 3.3 MB as 1440p60 AV1 and 2.7 MB as 1080p60 H.264,
+  around 0.6 Mbit/s — fluent on connections far below any embed's minimum. GitHub Pages
+  serves through a CDN with range-request support, and both files carry `faststart`, so
+  playback begins after a few hundred kilobytes.
+
+What is given up is adaptive streaming and player analytics. At these bitrates the ladder
+has nothing to adapt between, and the site collects no analytics anyway.
+
+The two renditions and the poster live in `site/` (`teaser-av1.mp4`, `teaser-h264.mp4`,
+`teaser-poster.jpg`) and deploy with every site publish. The `<video>` element lists AV1
+first and H.264 as the universal fallback, is click-to-play (`preload="metadata"`), and
+costs page load only the poster. The 4K Camtasia master is kept outside the repository;
+re-encoding is two ffmpeg commands recorded in `docs/teaser/shot-script.md`. GitHub
+Pages' soft bandwidth limit is ~100 GB/month; only visitors who press play download a
+rendition, so the limit is far away at this site's traffic.
+
 ---
 
 ## Open questions
diff --git a/docs/teaser/assets/sales-trend.png b/docs/teaser/assets/sales-trend.png
new file mode 100644
index 0000000..47c48a8
Binary files /dev/null and b/docs/teaser/assets/sales-trend.png differ
diff --git a/docs/teaser/assets/star-schema.png b/docs/teaser/assets/star-schema.png
new file mode 100644
index 0000000..83e25f2
Binary files /dev/null and b/docs/teaser/assets/star-schema.png differ
diff --git a/docs/teaser/demo-board.wimport b/docs/teaser/demo-board.wimport
new file mode 100644
index 0000000..fd98170
--- /dev/null
+++ b/docs/teaser/demo-board.wimport
@@ -0,0 +1,36 @@
+# Contoso sales review
+
+Staging recipe for beat 3 of the teaser (see `shot-script.md`). Dropping this file
+builds the review board in one gesture: two images on the first row, then the measure,
+the query, and the open questions. This paragraph is only for the Markdown preview.
+
+## Model
+![Contoso star schema](assets/star-schema.png)
+
+## Sales by month
+![Monthly sales, December peak](assets/sales-trend.png)
+
+---
+
+## Sales Amount
+```dax
+Sales Amount :=
+SUMX ( Sales, Sales[Quantity] * Sales[Net Price] )
+```
+
+## Top customers
+```sql
+SELECT TOP ( 10 )
+    c.CustomerName,
+    SUM ( s.Quantity * s.NetPrice ) AS SalesAmount
+FROM Sales AS s
+JOIN Customer AS c
+    ON c.CustomerKey = s.CustomerKey
+GROUP BY c.CustomerName
+ORDER BY SalesAmount DESC;
+```
+
+## Open questions
+- Why does December spike?
+- Returns are not in the model yet
+- Align the fiscal calendar with finance
diff --git a/docs/teaser/make-assets.ps1 b/docs/teaser/make-assets.ps1
new file mode 100644
index 0000000..b645269
--- /dev/null
+++ b/docs/teaser/make-assets.ps1
@@ -0,0 +1,162 @@
+#Requires -Version 7.0
+<#
+.SYNOPSIS
+    Regenerates the two demo images referenced by demo-board.wimport.
+
+.DESCRIPTION
+    Draws assets/star-schema.png and assets/sales-trend.png with GDI+ in the brand
+    palette (#F42727 / #B71D1D). The outputs are committed; run this only when the
+    pictures should change. Windows-only, like the recording itself.
+#>
+[CmdletBinding()]
+param()
+
+$ErrorActionPreference = 'Stop'
+Set-StrictMode -Version Latest
+Add-Type -AssemblyName System.Drawing
+
+$assetDir = Join-Path $PSScriptRoot 'assets'
+New-Item -ItemType Directory -Force $assetDir | Out-Null
+
+$red      = [System.Drawing.Color]::FromArgb(0xF4, 0x27, 0x27)
+$darkRed  = [System.Drawing.Color]::FromArgb(0xB7, 0x1D, 0x1D)
+$ink      = [System.Drawing.Color]::FromArgb(0x33, 0x33, 0x33)
+$muted    = [System.Drawing.Color]::FromArgb(0x77, 0x77, 0x77)
+$line     = [System.Drawing.Color]::FromArgb(0xC9, 0xC9, 0xC9)
+$cardFill = [System.Drawing.Color]::FromArgb(0xF6, 0xF6, 0xF6)
+$cardEdge = [System.Drawing.Color]::FromArgb(0xD4, 0xD4, 0xD4)
+
+# Whiteboard places an imported image at its pixel size in world units
+# (ImportLayout.ImageSize, clamped to 900x700), so the pixel size decides how large
+# the container lands next to the ~460-unit-wide text containers. The drawings keep
+# their 1400-unit logical layout and render at this scale.
+$renderScale = 0.5
+
+function New-Canvas([int] $w, [int] $h) {
+    $bmp = [System.Drawing.Bitmap]::new([int]($w * $renderScale), [int]($h * $renderScale))
+    $g = [System.Drawing.Graphics]::FromImage($bmp)
+    $g.SmoothingMode = [System.Drawing.Drawing2D.SmoothingMode]::AntiAlias
+    $g.TextRenderingHint = [System.Drawing.Text.TextRenderingHint]::AntiAliasGridFit
+    $g.ScaleTransform($renderScale, $renderScale)
+    $g.Clear([System.Drawing.Color]::White)
+    # A hairline frame so the container bounds read on the white board.
+    $framePen = [System.Drawing.Pen]::new([System.Drawing.Color]::FromArgb(0xE6, 0xE6, 0xE6), 3)
+    $g.DrawRectangle($framePen, 1, 1, $w - 3, $h - 3)
+    $framePen.Dispose()
+    return $bmp, $g
+}
+
+function Get-RoundedPath([System.Drawing.RectangleF] $r, [float] $radius) {
+    $p = [System.Drawing.Drawing2D.GraphicsPath]::new()
+    $d = $radius * 2
+    $p.AddArc($r.X, $r.Y, $d, $d, 180, 90)
+    $p.AddArc($r.Right - $d, $r.Y, $d, $d, 270, 90)
+    $p.AddArc($r.Right - $d, $r.Bottom - $d, $d, $d, 0, 90)
+    $p.AddArc($r.X, $r.Bottom - $d, $d, $d, 90, 90)
+    $p.CloseFigure()
+    return $p
+}
+
+function Draw-CenteredText([System.Drawing.Graphics] $g, [string] $text,
+        [System.Drawing.Font] $font, [System.Drawing.Color] $color,
+        [System.Drawing.RectangleF] $rect) {
+    $brush = [System.Drawing.SolidBrush]::new($color)
+    $fmt = [System.Drawing.StringFormat]::new()
+    $fmt.Alignment = 'Center'
+    $fmt.LineAlignment = 'Center'
+    $fmt.FormatFlags = [System.Drawing.StringFormatFlags]::NoWrap -bor [System.Drawing.StringFormatFlags]::NoClip
+    $fmt.Trimming = [System.Drawing.StringTrimming]::None
+    $g.DrawString($text, $font, $brush, $rect, $fmt)
+    $fmt.Dispose(); $brush.Dispose()
+}
+
+# ---------------------------------------------------------------- star schema
+$bmp, $g = New-Canvas 1400 900
+$titleFont = [System.Drawing.Font]::new('Segoe UI', 34, [System.Drawing.FontStyle]::Bold)
+$dimFont   = [System.Drawing.Font]::new('Segoe UI', 27, [System.Drawing.FontStyle]::Bold)
+$rowFont   = [System.Drawing.Font]::new('Segoe UI', 22)
+
+$factRect = [System.Drawing.RectangleF]::new(470, 360, 460, 180)
+$dims = @(
+    @{ Name = 'Date';     Rect = [System.Drawing.RectangleF]::new(100,  110, 340, 130) }
+    @{ Name = 'Product';  Rect = [System.Drawing.RectangleF]::new(960,  110, 340, 130) }
+    @{ Name = 'Customer'; Rect = [System.Drawing.RectangleF]::new(100,  660, 340, 130) }
+    @{ Name = 'Store';    Rect = [System.Drawing.RectangleF]::new(960,  660, 340, 130) }
+)
+
+$connector = [System.Drawing.Pen]::new($line, 4)
+foreach ($d in $dims) {
+    $g.DrawLine($connector,
+        $d.Rect.X + $d.Rect.Width / 2, $d.Rect.Y + $d.Rect.Height / 2,
+        $factRect.X + $factRect.Width / 2, $factRect.Y + $factRect.Height / 2)
+}
+$connector.Dispose()
+
+$edgePen = [System.Drawing.Pen]::new($cardEdge, 3)
+$dimBrush = [System.Drawing.SolidBrush]::new($cardFill)
+foreach ($d in $dims) {
+    $path = Get-RoundedPath $d.Rect 18
+    $g.FillPath($dimBrush, $path)
+    $g.DrawPath($edgePen, $path)
+    Draw-CenteredText $g $d.Name $dimFont $ink $d.Rect
+    $path.Dispose()
+}
+$dimBrush.Dispose(); $edgePen.Dispose()
+
+$factPath = Get-RoundedPath $factRect 18
+$factBrush = [System.Drawing.SolidBrush]::new($red)
+$g.FillPath($factBrush, $factPath)
+$titleRect = [System.Drawing.RectangleF]::new($factRect.X, $factRect.Y + 24, $factRect.Width, 60)
+$rowRect   = [System.Drawing.RectangleF]::new($factRect.X, $factRect.Y + 96, $factRect.Width, 50)
+Draw-CenteredText $g 'Sales' $titleFont ([System.Drawing.Color]::White) $titleRect
+Draw-CenteredText $g 'Quantity · Net Price' $rowFont ([System.Drawing.Color]::White) $rowRect
+$factBrush.Dispose(); $factPath.Dispose()
+
+$g.Dispose()
+$bmp.Save((Join-Path $assetDir 'star-schema.png'), [System.Drawing.Imaging.ImageFormat]::Png)
+$bmp.Dispose()
+Write-Host 'assets/star-schema.png' -ForegroundColor Green
+
+# ---------------------------------------------------------------- sales trend
+$bmp, $g = New-Canvas 1400 800
+$chartTitleFont = [System.Drawing.Font]::new('Segoe UI', 32, [System.Drawing.FontStyle]::Bold)
+$labelFont      = [System.Drawing.Font]::new('Segoe UI', 20)
+
+$titleBrush = [System.Drawing.SolidBrush]::new($ink)
+$g.DrawString('Sales by month', $chartTitleFont, $titleBrush, 70, 48)
+$titleBrush.Dispose()
+
+$plot = [System.Drawing.RectangleF]::new(70, 150, 1260, 540)
+$gridPen = [System.Drawing.Pen]::new([System.Drawing.Color]::FromArgb(0xEA, 0xEA, 0xEA), 2)
+foreach ($frac in 0.25, 0.5, 0.75) {
+    $y = $plot.Bottom - $plot.Height * $frac
+    $g.DrawLine($gridPen, $plot.X, $y, $plot.Right, $y)
+}
+$gridPen.Dispose()
+
+$values = 56, 51, 60, 66, 58, 63, 70, 67, 62, 71, 78, 100
+$months = 'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'
+$slot = $plot.Width / $values.Count
+$barWidth = $slot * 0.62
+$labelBrush = [System.Drawing.SolidBrush]::new($muted)
+$fmt = [System.Drawing.StringFormat]::new(); $fmt.Alignment = 'Center'
+for ($i = 0; $i -lt $values.Count; $i++) {
+    $h = $plot.Height * ($values[$i] / 100)
+    $x = $plot.X + $slot * $i + ($slot - $barWidth) / 2
+    $barColor = if ($i -eq 11) { $darkRed } else { $red }
+    $barBrush = [System.Drawing.SolidBrush]::new($barColor)
+    $g.FillRectangle($barBrush, $x, $plot.Bottom - $h, $barWidth, $h)
+    $barBrush.Dispose()
+    $g.DrawString($months[$i], $labelFont, $labelBrush,
+        $plot.X + $slot * $i + $slot / 2, $plot.Bottom + 16, $fmt)
+}
+$fmt.Dispose(); $labelBrush.Dispose()
+
+$axisPen = [System.Drawing.Pen]::new($line, 3)
+$g.DrawLine($axisPen, $plot.X, $plot.Bottom, $plot.Right, $plot.Bottom)
+$axisPen.Dispose()
+
+$g.Dispose()
+$bmp.Save((Join-Path $assetDir 'sales-trend.png'), [System.Drawing.Imaging.ImageFormat]::Png)
+$bmp.Dispose()
+Write-Host 'assets/sales-trend.png' -ForegroundColor Green
diff --git a/docs/teaser/make-overlays.ps1 b/docs/teaser/make-overlays.ps1
new file mode 100644
index 0000000..212cb12
--- /dev/null
+++ b/docs/teaser/make-overlays.ps1
@@ -0,0 +1,105 @@
+#Requires -Version 7.0
+<#
+.SYNOPSIS
+    Regenerates the keystroke callout overlays for the teaser edit.
+
+.DESCRIPTION
+    Draws overlays/ctrl-v.png and overlays/f6.png: dark keycaps on a transparent
+    background, sized large (keycap height ~340 px) so they stay crisp when scaled
+    down on the Camtasia timeline. Windows-only, like make-assets.ps1.
+#>
+[CmdletBinding()]
+param()
+
+$ErrorActionPreference = 'Stop'
+Set-StrictMode -Version Latest
+Add-Type -AssemblyName System.Drawing
+
+$outDir = Join-Path $PSScriptRoot 'overlays'
+New-Item -ItemType Directory -Force $outDir | Out-Null
+
+$faceColor = [System.Drawing.Color]::FromArgb(0x3A, 0x3A, 0x3A)
+$lipColor  = [System.Drawing.Color]::FromArgb(0x1D, 0x1D, 0x1D)
+$textColor = [System.Drawing.Color]::White
+
+$keyHeight = 320
+$lip       = 18
+$radius    = 44
+$margin    = 24
+$gap       = 52
+$keyFont   = [System.Drawing.Font]::new('Segoe UI', 84, [System.Drawing.FontStyle]::Bold)
+$plusFont  = [System.Drawing.Font]::new('Segoe UI', 64, [System.Drawing.FontStyle]::Bold)
+
+function Get-RoundedPath([System.Drawing.RectangleF] $r, [float] $rad) {
+    $p = [System.Drawing.Drawing2D.GraphicsPath]::new()
+    $d = $rad * 2
+    $p.AddArc($r.X, $r.Y, $d, $d, 180, 90)
+    $p.AddArc($r.Right - $d, $r.Y, $d, $d, 270, 90)
+    $p.AddArc($r.Right - $d, $r.Bottom - $d, $d, $d, 0, 90)
+    $p.AddArc($r.X, $r.Bottom - $d, $d, $d, 90, 90)
+    $p.CloseFigure()
+    return $p
+}
+
+$centerFmt = [System.Drawing.StringFormat]::new()
+$centerFmt.Alignment = 'Center'
+$centerFmt.LineAlignment = 'Center'
+$centerFmt.FormatFlags = [System.Drawing.StringFormatFlags]::NoWrap -bor [System.Drawing.StringFormatFlags]::NoClip
+$centerFmt.Trimming = [System.Drawing.StringTrimming]::None
+
+# Measure once with a throwaway graphics so each canvas is sized exactly.
+$probe = [System.Drawing.Graphics]::FromImage([System.Drawing.Bitmap]::new(1, 1))
+function Get-KeyWidth([string] $label) {
+    $w = $probe.MeasureString($label, $keyFont).Width + 90
+    return [Math]::Max($w, $keyHeight)   # single letters get a square key
+}
+
+function Save-Overlay([string] $name, [string[]] $keys) {
+    $widths = $keys | ForEach-Object { Get-KeyWidth $_ }
+    $plusWidth = if ($keys.Count -gt 1) { $probe.MeasureString('+', $plusFont).Width } else { 0 }
+    $total = ($widths | Measure-Object -Sum).Sum +
+             ($keys.Count - 1) * ($gap * 2 + $plusWidth) + $margin * 2
+
+    $bmp = [System.Drawing.Bitmap]::new([int][Math]::Ceiling($total), $margin * 2 + $keyHeight + $lip)
+    $g = [System.Drawing.Graphics]::FromImage($bmp)
+    $g.SmoothingMode = [System.Drawing.Drawing2D.SmoothingMode]::AntiAlias
+    $g.TextRenderingHint = [System.Drawing.Text.TextRenderingHint]::AntiAliasGridFit
+    $g.Clear([System.Drawing.Color]::Transparent)
+
+    $lipBrush  = [System.Drawing.SolidBrush]::new($lipColor)
+    $faceBrush = [System.Drawing.SolidBrush]::new($faceColor)
+    $textBrush = [System.Drawing.SolidBrush]::new($textColor)
+    $plusBrush = [System.Drawing.SolidBrush]::new($faceColor)
+
+    $x = [float] $margin
+    for ($i = 0; $i -lt $keys.Count; $i++) {
+        if ($i -gt 0) {
+            $plusRect = [System.Drawing.RectangleF]::new($x, $margin, $gap * 2 + $plusWidth, $keyHeight)
+            $g.DrawString('+', $plusFont, $plusBrush, $plusRect, $centerFmt)
+            $x += $gap * 2 + $plusWidth
+        }
+        $w = $widths[$i]
+        $lipPath  = Get-RoundedPath ([System.Drawing.RectangleF]::new($x, $margin, $w, $keyHeight + $lip)) $radius
+        $facePath = Get-RoundedPath ([System.Drawing.RectangleF]::new($x, $margin, $w, $keyHeight)) $radius
+        $g.FillPath($lipBrush, $lipPath)
+        $g.FillPath($faceBrush, $facePath)
+        $g.DrawString($keys[$i], $keyFont, $textBrush,
+            [System.Drawing.RectangleF]::new($x, $margin, $w, $keyHeight), $centerFmt)
+        $lipPath.Dispose(); $facePath.Dispose()
+        $x += $w
+    }
+
+    $lipBrush.Dispose(); $faceBrush.Dispose(); $textBrush.Dispose(); $plusBrush.Dispose()
+    $g.Dispose()
+    $bmp.Save((Join-Path $outDir $name), [System.Drawing.Imaging.ImageFormat]::Png)
+    $bmp.Dispose()
+    Write-Host "overlays/$name" -ForegroundColor Green
+}
+
+Save-Overlay 'ctrl-v.png' @('Ctrl', 'V')
+Save-Overlay 'f6.png' @('F6')
+
+$probe.Dispose()
+$centerFmt.Dispose()
+$keyFont.Dispose()
+$plusFont.Dispose()
diff --git a/docs/teaser/overlays/ctrl-v.png b/docs/teaser/overlays/ctrl-v.png
new file mode 100644
index 0000000..c856b5e
Binary files /dev/null and b/docs/teaser/overlays/ctrl-v.png differ
diff --git a/docs/teaser/overlays/f6.png b/docs/teaser/overlays/f6.png
new file mode 100644
index 0000000..596ccbd
Binary files /dev/null and b/docs/teaser/overlays/f6.png differ
diff --git a/docs/teaser/paste-me.dax b/docs/teaser/paste-me.dax
new file mode 100644
index 0000000..f94877e
--- /dev/null
+++ b/docs/teaser/paste-me.dax
@@ -0,0 +1 @@
+Sales YoY % = VAR CY = [Sales Amount] VAR PY = CALCULATE ( [Sales Amount], SAMEPERIODLASTYEAR ( 'Date'[Date] ) ) RETURN DIVIDE ( CY - PY, PY )
diff --git a/docs/teaser/shot-script.md b/docs/teaser/shot-script.md
new file mode 100644
index 0000000..c641fa9
--- /dev/null
+++ b/docs/teaser/shot-script.md
@@ -0,0 +1,110 @@
+# Teaser shot script
+
+The teaser on the landing page: one continuous board session, recorded long and cut
+down. The shipped cut runs 42 seconds. The same master serves the home page, the Store
+trailer, and announcements. It is served from the site itself, not embedded — decision 19
+in [../decisions.md](../decisions.md).
+
+Everything the recording needs is in this folder:
+
+| File | Used in |
+| --- | --- |
+| `shot-script.md` | This script |
+| `demo-board.wimport` | Beat 3 — the drop that fills the board |
+| `paste-me.dax` | Beat 2 — copy its contents to the clipboard before recording |
+| `assets/star-schema.png`, `assets/sales-trend.png` | Referenced by the recipe |
+| `make-assets.ps1` | Regenerates the two PNGs if they change |
+| `overlays/ctrl-v.png`, `overlays/f6.png` | Keystroke callouts for the edit (beats 2's paste and F6) |
+| `make-overlays.ps1` | Regenerates the overlays if they change |
+
+## Recording setup
+
+- **OBS Studio**, display capture, canvas and output **2560 × 1440, 60 fps**. 60 fps is
+  non-negotiable for ink; 1440p keeps UI text crisp after Vimeo re-encodes.
+- Windows display scaling **150 %** on the recording monitor, so the toolbar and tab strip
+  read inside the 860-px-wide embed.
+- **Released-channel build** — no "(Dev)" in the title bar. Current UI per TODO.md.
+- Focus Assist / Do not disturb on. Clean desktop and taskbar (auto-hide, or record the
+  window region only). Default white board, default toolbar position.
+- Pen: the Cintiq Pro profile already validated in README § "Wacom Cintiq Pro validation".
+
+## Staging, before every take
+
+1. Open **Help → Preferences → Snippet format order** and move **DAX above Plain text**,
+   so the paste in beat 2 lands already highlighted. (Restore afterwards if you prefer
+   plain-first day to day.)
+2. Copy the contents of `paste-me.dax` to the clipboard **as text** (open it in a text
+   editor and Ctrl+A, Ctrl+C — do not copy the file in Explorer, paste prefers a file).
+3. Open a File Explorer window showing this folder, positioned on a second monitor or
+   off-canvas, ready to drag `demo-board.wimport`.
+4. Start the LiveView target for beat 5: **Power BI Desktop** with a report page visible
+   (any demo model — it only needs to look alive). Second monitor, or behind the app.
+5. New empty board, Pen tool, default zoom.
+
+## The beats
+
+Timings are the *edited* target. Record each beat at natural speed; the cuts and
+speed-ups happen in the edit. Total real time per take: 3–5 minutes.
+
+| # | Edited | Action, exactly | Must be visible |
+| --- | --- | --- | --- |
+| 1 | 0–5 s | On the empty board, handwrite **"Contoso — sales review"** and underline it. Vary pressure; this beat stays real-time in the edit, it is the "feel" shot. | Wet ink following the pen with no lag; pressure width variation; the hover dot before contact. |
+| 2 | 5–11 s | Click empty canvas below the title, **Ctrl+V**. The measure appears as a DAX container, highlighted, crammed on long lines. Press **F6**. It reformats in place. | Syntax colors on paste; the visible before/after of F6. |
+| 3 | 11–16 s | Drag **`demo-board.wimport`** from Explorer onto the right half of the board. Five containers materialize: two images, DAX, SQL, notes. | The one-gesture board build. Pause a beat so the layout registers. |
+| 4 | 16–21 s | With the pen, circle the December column on the **Sales by month** chart and draw a short arrow — strokes must stay entirely on that one image. Then left-drag the chart container to a clearer spot. | The ink travels with the container. This is the "aha" beat; move it far enough to be unmistakable. |
+| 5 | 21–26 s | **View → LiveView**, pick the Power BI Desktop window in the system picker, place it. Ink one arrow onto the live feed, then **View → Freeze**. | A real application, live inside the board, annotated. The picker dialog gets jump-cut to ~1 s in the edit. |
+| 6 | 26–30 s | Click empty canvas, then **double-click empty canvas**: the camera fits the whole board. Hold two seconds. | The zoom-to-fit reveal: title ink, formatted DAX, the dropped board, annotated chart, frozen LiveView — one composition. |
+
+Notes that keep beats honest:
+
+- Beat 4's strokes link only if they touch **exactly one** container — keep the circle and
+  arrow fully on the chart image, not grazing a neighbor.
+- The tab strip appears on camera in beat 5 (View tab) — that covers the tab-strip
+  requirement without its own beat.
+- Optional touch: one short two-finger pan somewhere between beats 3 and 4 shows touch
+  navigation. Finger drawing gets its Store screenshot instead; 30 s cannot carry it.
+- Optional end card: before the take, handwrite **whiteboard.sqlbi.com** small near the
+  board's edge; beat 6's fit reveals it without an overlay.
+
+## Takes
+
+Rehearse the full sequence twice without recording — the handwriting beats are the only
+part that cannot be fixed in post. Then record **three to five full takes**, letting
+mistakes run (restart the beat on the same board rather than the take; the edit keeps the
+best pass of each beat). Name recordings `take-01.mkv`, `take-02.mkv`, …
+
+## Edit
+
+- Jump cuts only. Every cut lands on the same white board with more content — no
+  transitions needed.
+- Beat 1 stays 1× always. Dialogs (capture picker) and any dead pen travel get cut or
+  sped to 4×. Keep at least one second of stillness after beats 3 and 6.
+- Keystroke callouts: overlay `overlays/ctrl-v.png` on the paste and `overlays/f6.png` on
+  the format in beat 2 — transparent PNGs, drawn large; scale to taste (a keycap about
+  1/10 of the frame height reads well), bottom-right corner, quick fade in and out.
+- No voiceover. Music optional, added at upload; the clip must work silent.
+- Export master: **2560 × 1440, 60 fps, H.264 high bitrate** (or ProRes/DNxHR if the
+  editor offers it), audio track only if music was added.
+
+## Publish
+
+The site serves the clip itself (decision 19). From the 4K master, encode the two
+renditions and the poster straight into `site/`; they deploy with the next site publish.
+
+```bash
+ffmpeg -y -i master.mp4 -vf "scale=2560:-2:flags=lanczos" -c:v libsvtav1 -crf 38 -preset 6 -movflags +faststart -an site/teaser-av1.mp4
+```
+
+```bash
+ffmpeg -y -i master.mp4 -vf "scale=1920:-2:flags=lanczos" -c:v libx264 -crf 22 -preset slow -pix_fmt yuv420p -movflags +faststart -an site/teaser-h264.mp4
+```
+
+```bash
+ffmpeg -y -ss 41.0 -i master.mp4 -frames:v 1 -vf "scale=1920:-2:flags=lanczos" -q:v 3 site/teaser-poster.jpg
+```
+
+The `<video>` element in `site/index.html` lists the AV1 source first and H.264 as the
+fallback; if a re-encode changes resolution, frame rate, or codec profile, update its
+`codecs=` strings (read them with `ffprobe -show_entries stream=profile,level`). Keep
+the master outside the repository, and reuse it for the Store trailer per
+`installer/msix/STORE-LISTING.md`.
diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-16.png b/installer/msix/Assets/Square44x44Logo.targetsize-16.png
new file mode 100644
index 0000000..84236d8
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-16_altform-lightunplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-16_altform-lightunplated.png
new file mode 100644
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-16_altform-unplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-16_altform-unplated.png
new file mode 100644
index 0000000..84236d8
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-24.png b/installer/msix/Assets/Square44x44Logo.targetsize-24.png
new file mode 100644
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-24_altform-lightunplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-24_altform-lightunplated.png
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-24_altform-unplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-24_altform-unplated.png
new file mode 100644
index 0000000..bca4005
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-256.png b/installer/msix/Assets/Square44x44Logo.targetsize-256.png
new file mode 100644
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-256_altform-lightunplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-256_altform-lightunplated.png
new file mode 100644
index 0000000..8f9cb60
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-256_altform-unplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-256_altform-unplated.png
new file mode 100644
index 0000000..8f9cb60
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-32.png b/installer/msix/Assets/Square44x44Logo.targetsize-32.png
new file mode 100644
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-32_altform-lightunplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-32_altform-lightunplated.png
new file mode 100644
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-32_altform-unplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-32_altform-unplated.png
new file mode 100644
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-48.png b/installer/msix/Assets/Square44x44Logo.targetsize-48.png
new file mode 100644
index 0000000..34af5e4
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diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-48_altform-lightunplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-48_altform-lightunplated.png
new file mode 100644
index 0000000..34af5e4
Binary files /dev/null and b/installer/msix/Assets/Square44x44Logo.targetsize-48_altform-lightunplated.png differ
diff --git a/installer/msix/Assets/Square44x44Logo.targetsize-48_altform-unplated.png b/installer/msix/Assets/Square44x44Logo.targetsize-48_altform-unplated.png
new file mode 100644
index 0000000..34af5e4
Binary files /dev/null and b/installer/msix/Assets/Square44x44Logo.targetsize-48_altform-unplated.png differ
diff --git a/installer/msix/STORE-LISTING.md b/installer/msix/STORE-LISTING.md
index dc6d521..d3692de 100644
--- a/installer/msix/STORE-LISTING.md
+++ b/installer/msix/STORE-LISTING.md
@@ -111,8 +111,8 @@ repeat.
    Nothing in this repository can stand in: the site artwork is the wrong
    shape, and the launch card carries both the product title and a competitor's
    name. What to shoot is under the listing fields below, and reshooting is
-   needed whenever the UI moves on. The teaser in TODO.md is independent of
-   these stills.
+   needed whenever the UI moves on. The teaser video on the landing page is
+   independent of these stills.
 8. **The listing text** — every field is written out below. Paste it, then edit
    freely in Partner Center.
 
diff --git a/installer/msix/listing/BoxArt-1080x1080.png b/installer/msix/listing/BoxArt-1080x1080.png
index ec26d03..af404a1 100644
Binary files a/installer/msix/listing/BoxArt-1080x1080.png and b/installer/msix/listing/BoxArt-1080x1080.png differ
diff --git a/installer/msix/listing/PosterArt-720x1080.png b/installer/msix/listing/PosterArt-720x1080.png
index 8b7e829..840c872 100644
Binary files a/installer/msix/listing/PosterArt-720x1080.png and b/installer/msix/listing/PosterArt-720x1080.png differ
diff --git a/scripts/build-msix.ps1 b/scripts/build-msix.ps1
index 503d159..a985077 100644
--- a/scripts/build-msix.ps1
+++ b/scripts/build-msix.ps1
@@ -65,6 +65,9 @@ if (-not (Test-Path $handler)) { throw "Thumbnail handler not found: $handler" }
 if (-not (Test-Path (Join-Path $assets 'StoreLogo.png'))) {
     throw "Store assets are missing. Run scripts/build-assets.ps1 first."
 }
+if (-not (Test-Path (Join-Path $assets 'Square44x44Logo.targetsize-24_altform-unplated.png'))) {
+    throw "Unplated icon variants are missing. Run scripts/build-assets.ps1 first."
+}
 
 $makeAppxPath = $null
 $makeAppxCmd = Get-Command makeappx.exe -ErrorAction SilentlyContinue
@@ -84,6 +87,11 @@ if (-not $makeAppxPath) {
     throw "makeappx.exe was not found. Install the Windows 10/11 SDK (MakeAppx)."
 }
 
+$makePriPath = Join-Path (Split-Path $makeAppxPath) 'makepri.exe'
+if (-not (Test-Path $makePriPath)) {
+    throw "makepri.exe was not found beside makeappx.exe. Install the Windows 10/11 SDK (MakePri)."
+}
+
 $staging = Join-Path $OutputFolder '.msix-staging'
 if (Test-Path $staging) { Remove-Item $staging -Recurse -Force }
 New-Item -ItemType Directory -Path $staging | Out-Null
@@ -101,6 +109,25 @@ try {
     $manifest = $manifest.Replace('__VERSION__', $identityVersion)
     Set-Content -Path (Join-Path $staging 'AppxManifest.xml') -Value $manifest -Encoding utf8
 
+    # The taskbar resolves the targetsize-*_altform-unplated icon variants through the
+    # package resource index; without resources.pri those files are dead weight and the
+    # shell falls back to plating Square44x44Logo on the accent color. The index is
+    # built from a root holding only the manifest and Assets: indexing the staged
+    # binaries would sweep the .NET satellite-assembly folders into per-language
+    # split PRI files, and the runtime loads those satellites itself.
+    Write-Host "==> makepri new" -ForegroundColor Cyan
+    $priRoot = Join-Path $OutputFolder '.msix-pri-index'
+    $priConfig = Join-Path $OutputFolder '.msix-priconfig.xml'
+    if (Test-Path $priRoot) { Remove-Item $priRoot -Recurse -Force }
+    if (Test-Path $priConfig) { Remove-Item $priConfig -Force }
+    New-Item -ItemType Directory -Path $priRoot | Out-Null
+    Copy-Item (Join-Path $staging 'AppxManifest.xml') $priRoot
+    Copy-Item (Join-Path $staging 'Assets') (Join-Path $priRoot 'Assets') -Recurse
+    & $makePriPath createconfig /cf $priConfig /dq lang-en-US_scale-100 /o
+    if ($LASTEXITCODE -ne 0) { throw "makepri createconfig failed with exit code $LASTEXITCODE" }
+    & $makePriPath new /pr $priRoot /cf $priConfig /mn (Join-Path $priRoot 'AppxManifest.xml') /of (Join-Path $staging 'resources.pri') /o
+    if ($LASTEXITCODE -ne 0) { throw "makepri new failed with exit code $LASTEXITCODE" }
+
     $msixPath = Join-Path $OutputFolder "SQLBI.Whiteboard.$Version.$Architecture.msix"
     # Print the identity. A Store rejection reads as three separate errors, so
     # having the packed values in the build log is what makes it one glance.
@@ -115,4 +142,8 @@ try {
 }
 finally {
     if (Test-Path $staging) { Remove-Item $staging -Recurse -Force }
+    $priRoot = Join-Path $OutputFolder '.msix-pri-index'
+    if (Test-Path $priRoot) { Remove-Item $priRoot -Recurse -Force }
+    $priConfig = Join-Path $OutputFolder '.msix-priconfig.xml'
+    if (Test-Path $priConfig) { Remove-Item $priConfig -Force }
 }
diff --git a/site/index.html b/site/index.html
index fd8fe09..8cc820c 100644
--- a/site/index.html
+++ b/site/index.html
@@ -79,14 +79,16 @@ <h1>The whiteboard for <span class="accent">teaching</span></h1>
 
     <section class="teaser" aria-label="Product teaser">
       <div class="teaser-frame">
-        <!-- Replace 763673561 with the teaser id when that clip is published. -->
-        <iframe
-          src="https://player.vimeo.com/video/763673561?badge=0&amp;dnt=1&amp;title=0&amp;byline=0&amp;portrait=0"
-          allow="fullscreen; picture-in-picture"
-          referrerpolicy="strict-origin-when-cross-origin"
-          title="SQLBI Whiteboard, thirty seconds"></iframe>
+        <!-- Served from this site: no third party, and it plays where embeds are
+             blocked. Decision 19 in docs/decisions.md. -->
+        <video controls playsinline preload="metadata"
+               poster="teaser-poster.jpg"
+               title="SQLBI Whiteboard, forty seconds">
+          <source src="teaser-av1.mp4" type='video/mp4; codecs="av01.0.12M.08"'>
+          <source src="teaser-h264.mp4" type='video/mp4; codecs="avc1.640032"'>
+        </video>
       </div>
-      <p class="launch-caption">Thirty seconds on a board.</p>
+      <p class="launch-caption">Forty seconds on a board.</p>
     </section>
   </div>
 </header>
diff --git a/site/privacy.html b/site/privacy.html
index 362cfcb..3f507a3 100644
--- a/site/privacy.html
+++ b/site/privacy.html
@@ -61,7 +61,7 @@ <h2>This website</h2>
     <ul>
       <li>The download button on the home page reads <code>stable.json</code> from this site so the installer link can carry the current version. If that file is missing, it asks <code>api.github.com</code>. Without scripting, the same links go to the GitHub releases page.</li>
       <li>The changelog page asks <code>api.github.com</code> to list published releases.</li>
-      <li>The home page embeds a player from <code>player.vimeo.com</code>, with <code>dnt=1</code>. Vimeo is a third party and may set its own cookies. There is no Vimeo JavaScript API on this site.</li>
+      <li>The teaser on the home page is a video file served from this site. Playing it contacts no third party.</li>
     </ul>
 
     <h2>What we do not do</h2>
diff --git a/site/styles.css b/site/styles.css
index f61ad3c..d579329 100644
--- a/site/styles.css
+++ b/site/styles.css
@@ -346,7 +346,7 @@ footer .ico-inline { vertical-align: -2px; margin-right: 5px; }
   overflow: hidden;
   background: #F7F6F2;
 }
-.teaser-frame iframe {
+.teaser-frame video {
   position: absolute;
   inset: 0;
   width: 100%;
diff --git a/site/teaser-av1.mp4 b/site/teaser-av1.mp4
new file mode 100644
index 0000000..c85c409
Binary files /dev/null and b/site/teaser-av1.mp4 differ
diff --git a/site/teaser-h264.mp4 b/site/teaser-h264.mp4
new file mode 100644
index 0000000..999f939
Binary files /dev/null and b/site/teaser-h264.mp4 differ
diff --git a/site/teaser-poster.jpg b/site/teaser-poster.jpg
new file mode 100644
index 0000000..da9be52
Binary files /dev/null and b/site/teaser-poster.jpg differ
diff --git a/tools/AssetGenerator/Program.cs b/tools/AssetGenerator/Program.cs
index 1f031ce..fd65581 100644
--- a/tools/AssetGenerator/Program.cs
+++ b/tools/AssetGenerator/Program.cs
@@ -88,6 +88,18 @@ private static int Main(string[] args)
         Console.WriteLine("Store");
         Write(Path.Combine(msixAssets, "StoreLogo.png"), EncodePng(RenderTile(50)));
         Write(Path.Combine(msixAssets, "Square44x44Logo.png"), EncodePng(RenderTile(44)));
+        // Without altform-unplated variants the taskbar shows Square44x44Logo shrunken
+        // on an accent-colored plate. The tile carries its own rounded square, so every
+        // form is the same artwork; what matters is that the names exist and are indexed
+        // into resources.pri, which scripts/build-msix.ps1 builds at pack time.
+        int[] taskbarSizes = [16, 24, 32, 48, 256];
+        foreach (var size in taskbarSizes)
+        {
+            var frame = EncodePng(RenderTile(size));
+            Write(Path.Combine(msixAssets, $"Square44x44Logo.targetsize-{size}.png"), frame);
+            Write(Path.Combine(msixAssets, $"Square44x44Logo.targetsize-{size}_altform-unplated.png"), frame);
+            Write(Path.Combine(msixAssets, $"Square44x44Logo.targetsize-{size}_altform-lightunplated.png"), frame);
+        }
         Write(Path.Combine(msixAssets, "Square150x150Logo.png"), EncodePng(RenderTile(150)));
         Write(Path.Combine(msixAssets, "Wide310x150Logo.png"), EncodePng(RenderWideTile(310, 150)));
         Write(Path.Combine(msixAssets, "SplashScreen.png"), EncodePng(RenderWideTile(620, 300)));
@@ -199,10 +211,10 @@ private static BitmapSource RenderFullBleed(int size) => Render(size, size, cont
     });
 
     /// <summary>Composition the Store listing images share: the mark reversed out of the brand
-    /// gradient, over the product name. Full bleed, because the Store applies its own corners,
-    /// and titled, because these are the main logo on surfaces that do not print the name
-    /// beside them.</summary>
-    private static void DrawListingArt(DrawingContext context, double width, double height, double glyph, double titleSize)
+    /// gradient. Full bleed, because the Store applies its own corners. Untitled: the Store
+    /// prints the product name beside this art in search results and the product header, and
+    /// the titled version read as the name twice.</summary>
+    private static void DrawListingArt(DrawingContext context, double width, double height, double glyph)
     {
         context.DrawRectangle(
             new LinearGradientBrush(BrandRed, BrandRedDeep, new Point(0, 0), new Point(width, height))
@@ -212,56 +224,21 @@ private static void DrawListingArt(DrawingContext context, double width, double
             null,
             new Rect(0, 0, width, height));
 
-        var title = Text("SQLBI Whiteboard", Segoe(FontWeights.SemiBold), titleSize, Colors.White);
-        var tagline = Text(
-            "Pen, touch, and live capture",
-            Segoe(FontWeights.Normal),
-            titleSize * 0.48,
-            Color.FromArgb(0xD0, 0xFF, 0xFF, 0xFF));
-
-        // The glyph occupies the middle 18 of its 24-unit box, so only that part is measured
-        // into the block; centring on the nominal square would sit the artwork low.
+        // The glyph occupies the middle 18 of its 24-unit box, so only that part is
+        // centered; centring on the nominal square would sit the artwork low.
         var glyphInk = glyph * 18.0 / 24.0;
-        var titleGap = glyph * 0.2;
-        var taglineGap = titleSize * 0.3;
-        // Measured rather than positioned by hand, so the block stays centered at either size.
-        var block = glyphInk + titleGap + title.Height + taglineGap + tagline.Height;
-
-        var y = (height - block) / 2;
-        DrawGlyph(context, (width - glyph) / 2, y - (glyph * 3.0 / 24.0), glyph, Brushes.White);
-        y += glyphInk + titleGap;
-        context.DrawText(title, new Point((width - title.Width) / 2, y));
-        y += title.Height + taglineGap;
-        context.DrawText(tagline, new Point((width - tagline.Width) / 2, y));
-
-        if (title.Width > width * 0.88)
-        {
-            Console.Error.WriteLine(
-                $"  warning: listing title reaches {title.Width:F0}px of {width * 0.88:F0}px");
-        }
+        var y = (height - glyphInk) / 2 - (glyph * 3.0 / 24.0);
+        DrawGlyph(context, (width - glyph) / 2, y, glyph, Brushes.White);
     }
 
     /// <summary>9:16 poster art, which Windows 10 and 11 use as the main listing logo.</summary>
     private static BitmapSource RenderPosterArt() =>
-        Render(720, 1080, context => DrawListingArt(context, 720, 1080, 320, 62));
+        Render(720, 1080, context => DrawListingArt(context, 720, 1080, 360));
 
     /// <summary>1:1 box art, which the Store substitutes into layouts the poster does not fit,
     /// and falls back to as the main logo when no poster art is supplied.</summary>
     private static BitmapSource RenderBoxArt() =>
-        Render(1080, 1080, context => DrawListingArt(context, 1080, 1080, 420, 84));
-
-    private static Typeface Segoe(FontWeight weight) =>
-        new(new FontFamily("Segoe UI"), FontStyles.Normal, weight, FontStretches.Normal);
-
-    private static FormattedText Text(string value, Typeface typeface, double size, Color color) =>
-        new(
-            value,
-            CultureInfo.InvariantCulture,
-            FlowDirection.LeftToRight,
-            typeface,
-            size,
-            new SolidColorBrush(color),
-            1.0);
+        Render(1080, 1080, context => DrawListingArt(context, 1080, 1080, 480));
 
     private static BitmapSource RenderWideTile(int width, int height) => Render(width, height, context =>
     {