diff --git a/package.json b/package.json
index 8a65ef12a..904ab52fb 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
   ],
   "scripts": {
     "dev": "./scripts/dev.sh",
+    "dev:win": "powershell ./scripts/dev.ps1",
     "dev:server": "npm run dev --workspace=@getpaseo/server",
     "dev:app": "npm run start --workspace=@getpaseo/app",
     "dev:website": "npm run dev --workspace=@getpaseo/website",
@@ -36,6 +37,7 @@
     "ios": "npm run ios --workspace=@getpaseo/app",
     "web": "npm run web --workspace=@getpaseo/app",
     "dev:desktop": "npm run dev --workspace=@getpaseo/desktop",
+    "dev:win:desktop": "npm run dev:win --workspace=@getpaseo/desktop",
     "build:desktop": "npm run version:sync-internal && npm run build:web --workspace=@getpaseo/app && npm run build --workspace=@getpaseo/desktop",
     "cli": "npx tsx packages/cli/src/index.js",
     "version": "npm run version:sync-internal && npm run release:prepare && git add -A",
diff --git a/packages/desktop/package.json b/packages/desktop/package.json
index 9b18e8e5b..7cf98e142 100644
--- a/packages/desktop/package.json
+++ b/packages/desktop/package.json
@@ -8,6 +8,7 @@
     "build": "npm --prefix ../.. run build:daemon && npm run build:main && electron-builder --config electron-builder.yml",
     "build:main": "tsc -p tsconfig.json",
     "dev": "./scripts/dev.sh",
+    "dev:win": "powershell ./scripts/dev.ps1",
     "test": "vitest run",
     "typecheck": "tsc --noEmit -p tsconfig.json"
   },
diff --git a/packages/desktop/scripts/dev.ps1 b/packages/desktop/scripts/dev.ps1
new file mode 100644
index 000000000..609704eac
--- /dev/null
+++ b/packages/desktop/scripts/dev.ps1
@@ -0,0 +1,36 @@
+$ErrorActionPreference = "Stop"
+
+$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$DesktopDir = (Resolve-Path "$ScriptDir\..").Path
+$AppDir = (Resolve-Path "$DesktopDir\..\app").Path
+$RootDir = (Resolve-Path "$DesktopDir\..\..").Path
+
+# Build the Electron main process
+npm run build:main
+
+# Get a random available port for Metro
+$env:EXPO_PORT = (npx get-port-cli).Trim()
+
+# Set EXPO_DEV_URL in the environment so Electron inherits it
+$env:EXPO_DEV_URL = "http://localhost:$($env:EXPO_PORT)"
+
+# Allow any origin in dev so Electron on random ports works.
+# SECURITY: wildcard CORS is unsafe in production — only acceptable here because
+# the daemon binds to localhost and this script is never used for production.
+$env:PASEO_CORS_ORIGINS = "*"
+
+Write-Host @"
+======================================================
+  Paseo Desktop Dev (Windows)
+======================================================
+  Metro:     http://localhost:$($env:EXPO_PORT)
+======================================================
+"@
+
+# Launch Metro + Electron together, kill both on exit
+& "$RootDir\node_modules\.bin\concurrently" `
+    --kill-others `
+    --names "metro,electron" `
+    --prefix-colors "magenta,cyan" `
+    "cd `"$AppDir`" && npx expo start --port $($env:EXPO_PORT)" `
+    "npx wait-on tcp:$($env:EXPO_PORT) && npx electron `"$DesktopDir`""
diff --git a/scripts/dev.ps1 b/scripts/dev.ps1
new file mode 100644
index 000000000..d86811c82
--- /dev/null
+++ b/scripts/dev.ps1
@@ -0,0 +1,65 @@
+$ErrorActionPreference = "Stop"
+
+# Ensure node_modules/.bin is in PATH
+$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$env:PATH = "$ScriptDir\..\node_modules\.bin;$env:PATH"
+
+# Derive PASEO_HOME: stable name for worktrees, temporary dir otherwise
+if (-not $env:PASEO_HOME) {
+    $GitDir = git rev-parse --git-dir 2>$null
+    $GitCommonDir = git rev-parse --git-common-dir 2>$null
+
+    if ($GitDir -and $GitCommonDir -and ($GitDir -ne $GitCommonDir)) {
+        # Inside a worktree — derive a stable home from the worktree name
+        $WorktreeRoot = git rev-parse --show-toplevel
+        $WorktreeName = (Split-Path -Leaf $WorktreeRoot).ToLower() -replace '[^a-z0-9-]', '-' -replace '-+', '-' -replace '^-|-$', ''
+        $env:PASEO_HOME = "$env:USERPROFILE\.paseo-$WorktreeName"
+        New-Item -ItemType Directory -Force -Path $env:PASEO_HOME | Out-Null
+    } else {
+        $env:PASEO_HOME = Join-Path ([System.IO.Path]::GetTempPath()) "paseo-dev-$([System.Guid]::NewGuid().ToString('N').Substring(0,6))"
+        New-Item -ItemType Directory -Force -Path $env:PASEO_HOME | Out-Null
+        # Register cleanup on exit
+        $TempPaseoHome = $env:PASEO_HOME
+        Register-EngineEvent PowerShell.Exiting -Action {
+            Remove-Item -Recurse -Force $TempPaseoHome -ErrorAction SilentlyContinue
+        } | Out-Null
+    }
+}
+
+# Share speech models with the main install to avoid duplicate downloads
+if (-not $env:PASEO_LOCAL_MODELS_DIR) {
+    $env:PASEO_LOCAL_MODELS_DIR = "$env:USERPROFILE\.paseo\models\local-speech"
+    New-Item -ItemType Directory -Force -Path $env:PASEO_LOCAL_MODELS_DIR | Out-Null
+}
+
+Write-Host @"
+======================================================
+  Paseo Dev (Windows)
+======================================================
+  Home:    $($env:PASEO_HOME)
+  Models:  $($env:PASEO_LOCAL_MODELS_DIR)
+  Daemon:  localhost:6767
+======================================================
+"@
+
+# Allow any origin in dev so Electron on random ports all work.
+# SECURITY: wildcard CORS is unsafe in production — only acceptable here because
+# the daemon binds to localhost and this script is never used for production.
+# Build dependencies required by the daemon (they only ship dist/)
+Write-Host "Building @getpaseo/highlight..."
+npm run build --workspace=@getpaseo/highlight
+Write-Host "Building @getpaseo/relay..."
+npm run build --workspace=@getpaseo/relay
+
+$env:PASEO_CORS_ORIGINS = "*"
+
+# Configure the app to auto-connect to this daemon on localhost
+$env:EXPO_PUBLIC_LOCAL_DAEMON = "localhost:6767"
+$env:BROWSER = "none"
+
+# Run both with concurrently
+concurrently `
+    --names "daemon,metro" `
+    --prefix-colors "cyan,magenta" `
+    "npm run dev:server" `
+    "cd packages/app && npx expo start"