diff --git a/Docs/installer-build-guide.md b/Docs/installer-build-guide.md
index 33d7a1f127..e6f4702803 100644
--- a/Docs/installer-build-guide.md
+++ b/Docs/installer-build-guide.md
@@ -21,26 +21,20 @@ Use the installer setup script to validate your environment:
 ### Required Software
 
 1. **Visual Studio 2026 or 2022** with Desktop workloads (C++ and .NET). Official installers are produced from Visual Studio 2022 (v143) builds; a v145 build gets a warning because the bundled VC++ redistributables predate that toolset.
-2. **WiX Toolset v3.14** for the legacy WiX 3 build (default), plus the **Visual Studio WiX Toolset v3 extension** so `Wix.CA.targets` is available under MSBuild
+2. **WiX Toolset v3.11** for the legacy WiX 3 build (default), plus the **Visual Studio WiX Toolset v3 extension** so `Wix.CA.targets` is available under MSBuild (see [ReadMe](../ReadMe.md) for instructions)
 3. **WiX Toolset v6** via `WixToolset.Sdk` for the opt-in WiX 6 build (restored via NuGet as part of the build)
 4. **MSBuild** (included with Visual Studio)
 5. **.NET Framework 4.8 SDK** (included with Visual Studio)
 
 ### One-Time Setup
 
-Run the developer machine setup script to install WiX and configure your environment:
+Run the developer machine setup script to clone additional repositories:
 
 ```powershell
-# Install WiX and configure PATH/environment variables (including WiX 3 VS extension)
-.\Setup-Developer-Machine.ps1
-
-# Also clone installer helper repositories
 .\Setup-Developer-Machine.ps1 -InstallerDeps
 ```
 
-### Repository Setup
-
-If not using `Setup-Developer-Machine.ps1 -InstallerDeps`, clone manually:
+Alternatively, clone manually:
 
 ```powershell
 # Clone main repository
@@ -50,6 +44,7 @@ cd fieldworks
 # Clone required helper repositories
 git clone https://github.com/sillsdev/FwHelps.git DistFiles/Helps
 git clone https://github.com/sillsdev/FwLocalizations.git Localizations
+git clone https://github.com/sillsdev/genericinstaller.git PatchableInstaller
 git clone https://github.com/sillsdev/liblcm.git Localizations/LCMRepo
 ```
 
diff --git a/ReadMe.md b/ReadMe.md
index f6346635d0..4f21908826 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -43,19 +43,15 @@ You can tag lock ownership for diagnostics with `FW_BUILD_STARTED_BY=user|agent`
 
 ## Building Installers (WiX 3 default, WiX 6 opt-in)
 
-Installer builds default to **WiX 3** (legacy batch pipeline) using inputs in `FLExInstaller/` and `PatchableInstaller/`. The **Visual Studio WiX Toolset v3 extension** is required so `Wix.CA.targets` is available under the MSBuild extensions path. Use `-InstallerToolset Wix6` to opt into the WiX 6 SDK-style path (restored via NuGet).
+Installer builds default to **WiX 3** (legacy batch pipeline) using inputs in `FLExInstaller/` and `PatchableInstaller/`. Use `-InstallerToolset Wix6` to opt into the WiX 6 SDK-style path (restored via NuGet; no setup required).
 
-### WiX 3.14 setup (required for WiX 3 installer builds)
+### WiX 3.11 setup (required for WiX 3 installer builds)
 
-We expect the WiX 3.14 toolset to be installed under:
-
-- `%LOCALAPPDATA%\FieldWorksTools\Wix314`
-
-Required:
-
-- Ensure `candle.exe`, `light.exe`, `heat.exe`, and `insignia.exe` are available. The WiX 3.14 tools are in the **root** of that folder (not a `bin` subfolder).
-- Set the `WIX` environment variable to the toolset root (e.g., `%LOCALAPPDATA%\FieldWorksTools\Wix314`).
-- Add the toolset root to `PATH` (or rerun `Setup-Developer-Machine.ps1` to do it for you).
+WiX 3.11 can be installed with Chocolatey:
+```
+choco install wixtoolset --version 3.11.2
+```
+- Ensure tools (`heat.exe` etc.) are available in `%WIX%\bin` or on the PATH.
 - Install the **Visual Studio WiX Toolset v3 extension** so `Wix.CA.targets` is available to MSBuild.
 
 ### Running installer builds
diff --git a/Setup-Developer-Machine.ps1 b/Setup-Developer-Machine.ps1
index 42872f1500..dddccce4e3 100644
--- a/Setup-Developer-Machine.ps1
+++ b/Setup-Developer-Machine.ps1
@@ -79,37 +79,15 @@ if (-not $SkipVSCheck) {
 
 #endregion
 
-#region Tool Installation
-
-Write-Host "`n--- Installing Development Tools ---" -ForegroundColor Yellow
-
-# Determine install locations (use standard paths, not C:\ root for dev machines)
-$toolsBase = "$env:LOCALAPPDATA\FieldWorksTools"
-if (-not (Test-Path $toolsBase)) {
-	New-Item -ItemType Directory -Path $toolsBase -Force | Out-Null
-}
-
-# Check what's already installed
-
-# WiX Toolset
-# This worktree builds installers with WiX v6 via NuGet PackageReference (restored during build).
-# No separate WiX 3.x installation (candle/light) is required.
-Write-Host "[INFO] WiX Toolset v6 is restored via NuGet during build (no WiX 3 install needed)" -ForegroundColor Gray
-
-# Note: Serena MCP language servers auto-download on first use:
-# - C# (csharp): Microsoft.CodeAnalysis.LanguageServer (Roslyn) from Azure NuGet
-# - C++ (cpp): clangd from GitHub releases
-# No manual installation needed!
-Write-Host ""
-Write-Host "[INFO] Serena language servers (C# Roslyn, clangd) auto-download on first use" -ForegroundColor Gray
-
-#endregion
-
 #region Installer Dependencies (Optional)
 
 if ($InstallerDeps) {
 	Write-Host "`n--- Setting Up Installer Dependencies ---" -ForegroundColor Yellow
 
+	# WiX Toolset
+	Write-Host "[INFO] WiX Toolset v6 is restored via NuGet during build." -ForegroundColor Gray
+	Write-Host "[INFO] WiX Toolset v3 installation is your responsibility." -ForegroundColor Yellow
+
 	# Detect if we're in a git worktree
 	$gitDir = git rev-parse --git-dir 2>$null
 	$isWorktree = $gitDir -and (Test-Path "$gitDir/commondir")