diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..459ed0f
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,67 @@
+# CLAUDE.md
+
+Behavioral guidelines to reduce common LLM coding mistakes. Merge with project-specific instructions as needed.
+
+**Tradeoff:** These guidelines bias toward caution over speed. For trivial tasks, use judgment.
+
+**Important:** Use Chinese for information responses and thinking; use English for searching and querying.
+
+## 1. Think Before Coding
+
+**Don't assume. Don't hide confusion. Surface tradeoffs.**
+
+Before implementing:
+- State your assumptions explicitly. If uncertain, ask.
+- If multiple interpretations exist, present them - don't pick silently.
+- If a simpler approach exists, say so. Push back when warranted.
+- If something is unclear, stop. Name what's confusing. Ask.
+
+## 2. Simplicity First
+
+**Minimum code that solves the problem. Nothing speculative.**
+
+- No features beyond what was asked.
+- No abstractions for single-use code.
+- No "flexibility" or "configurability" that wasn't requested.
+- No error handling for impossible scenarios.
+- If you write 200 lines and it could be 50, rewrite it.
+
+Ask yourself: "Would a senior engineer say this is overcomplicated?" If yes, simplify.
+
+## 3. Surgical Changes
+
+**Touch only what you must. Clean up only your own mess.**
+
+When editing existing code:
+- Don't "improve" adjacent code, comments, or formatting.
+- Don't refactor things that aren't broken.
+- Match existing style, even if you'd do it differently.
+- If you notice unrelated dead code, mention it - don't delete it.
+
+When your changes create orphans:
+- Remove imports/variables/functions that YOUR changes made unused.
+- Don't remove pre-existing dead code unless asked.
+
+The test: Every changed line should trace directly to the user's request.
+
+## 4. Goal-Driven Execution
+
+**Define success criteria. Loop until verified.**
+
+Transform tasks into verifiable goals:
+- "Add validation" → "Write tests for invalid inputs, then make them pass"
+- "Fix the bug" → "Write a test that reproduces it, then make it pass"
+- "Refactor X" → "Ensure tests pass before and after"
+
+For multi-step tasks, state a brief plan:
+```
+1. [Step] → verify: [check]
+2. [Step] → verify: [check]
+3. [Step] → verify: [check]
+```
+
+Strong success criteria let you loop independently. Weak criteria ("make it work") require constant clarification.
+
+---
+
+**These guidelines are working if:** fewer unnecessary changes in diffs, fewer rewrites due to overcomplication, and clarifying questions come before implementation rather than after mistakes.
\ No newline at end of file
diff --git a/README.md b/README.md
index 229a7ae..f284340 100644
--- a/README.md
+++ b/README.md
@@ -9,22 +9,115 @@
 - 支持自定义输出宽度和目录
 - 内置图片优化功能，使用图片优化引擎进行无损压缩
 
-## 安装
+## 新手使用说明
 
-使用uv进行基本安装和工具设置。必要工具，推荐使用scoop进行安装。
+如果你是第一次使用命令行工具，请按以下步骤操作。
+
+### 准备工作
+
+- **PowerPoint**：需要安装 Microsoft PowerPoint（Office 2016 或更新版本）
+- **网络连接**：安装过程中需要下载工具
+
+### 第一步：安装 uv
+
+`uv` 是一个 Python 包管理器，用来安装 pptopic 及其依赖。
+
+打开 PowerShell（在开始菜单搜索 "PowerShell"），进入本项目的目录：
+
+```powershell
+cd pptopic
+```
+
+运行项目自带的安装脚本：
+
+```powershell
+.\uv-installer.ps1
+```
+
+该脚本会自动下载最新版本的 uv 并添加到系统 PATH。如果你在中国大陆，脚本已内置 GitHub 加速镜像，无需额外配置。
+
+安装完成后，**关闭并重新打开 PowerShell**，验证安装：
+
+```powershell
+uv --version
+```
+
+> 如果你已安装 [scoop](https://scoop.sh/)，也可以直接 `scoop install uv`。
+> 如果想安装特定版本的 uv，可以在运行脚本前设置环境变量：`$env:UV_INSTALLER_VERSION = "0.11.20"`
+
+### 第二步：安装 Python
+
+使用 uv 安装 Python 3.13 或更新版本：
+
+```powershell
+uv python install 3.13
+```
+
+### 第三步：安装 pptopic
+
+```powershell
+uv pip install -e .
+```
+
+### 第四步（可选）：安装 pngquant 图片优化工具
+
+虽然是可选安装，但我超级建议你安装，因为ppt导出后，图片通常较大，不进行图片无损压缩，会导致文件大小过大。
+
+如果你需要对导出的图片进行压缩优化，运行：
+
+```powershell
+.\install-pngquant.ps1
+```
+
+该脚本会：
+1. 如果你已安装 scoop → 通过 scoop 安装 pngquant
+2. 如果没有 scoop → 自动下载并安装到 `%APPDATA%\pngquant`，并添加到 PATH
+
+安装完成后，**重新打开 PowerShell**，验证安装：
+
+```powershell
+pngquant --version
+```
+
+> 自定义安装目录：`.\install-pngquant.ps1 -InstallDir "D:\Tools\pngquant"`
+> 强制重新安装：`.\install-pngquant.ps1 -Force`
+
+### 第五步：开始使用
+
+```powershell
+# 导出 PPTX 为长图
+pptopic export presentation.pptx
+
+# 优化图片
+pptopic optimize image.png
+```
+
+至此安装完成。如果任何步骤遇到问题，请参考下方详细说明。
+
+## 安装
 
 ### 安装 uv
 
+使用项目自带的安装脚本（推荐）：
+
+```powershell
+.\uv-installer.ps1
+```
+
+该脚本自动检测 uv 最新版本，支持国内 GitHub 加速镜像下载（`mirror.ghproxy.com`、`ghproxy.net`），并自动将 uv 添加到系统 PATH。
+
+也可以通过 scoop 安装：
+
 ```bash
-# 使用 scoop
 scoop install uv
 ```
 
 ### 安装 pptopic
 
 ```bash
-$ cd pptopic
-$ uv pip install -e .
+cd pptopic
+uv sync
+uv pip install -e .
 ```
 
 ## 使用
@@ -67,21 +160,30 @@ pptopic optimize image.png --max-height 20000 --engine pngquant
 ## 图片优化
 
 为了获得最佳的图片压缩效果，推荐使用 [pngquant](https://pngquant.org/) 进行图片压缩。
-当然，使用自己熟悉的图片优化压缩引擎是一样的。
 
 ### 自动安装脚本
 
-使用提供的 PowerShell 脚本自动安装 pngquant：
+使用提供的 PowerShell 脚本安装 pngquant：
 
 ```powershell
 .\install-pngquant.ps1
 ```
 
-该脚本会自动：
-1. 检查 pngquant 是否已安装
-2. 如果未安装，检查 scoop 是否已安装
-3. 如果 scoop 未安装，自动安装 scoop
-4. 使用 scoop 安装 pngquant
+该脚本支持两种安装方式：
+
+1. **已安装 scoop** → 通过 `scoop install pngquant` 安装
+2. **未安装 scoop** → 从 pngquant 官网下载并安装到 `%APPDATA%\pngquant`，自动添加到 PATH
+
+```powershell
+# 自定义安装目录
+.\install-pngquant.ps1 -InstallDir "D:\Tools\pngquant"
+
+# 强制重新安装
+.\install-pngquant.ps1 -Force
+
+# 不修改 PATH
+.\install-pngquant.ps1 -NoModifyPath
+```
 
 ### 手动安装
 
@@ -89,6 +191,8 @@ pptopic optimize image.png --max-height 20000 --engine pngquant
 scoop install pngquant
 ```
 
+或从 [pngquant.org](https://pngquant.org/) 下载 Windows 版本手动配置。
+
 ## License
 
-MIT License
\ No newline at end of file
+MIT License
diff --git a/install-pngquant.ps1 b/install-pngquant.ps1
index d77012c..4d8c371 100644
--- a/install-pngquant.ps1
+++ b/install-pngquant.ps1
@@ -1,8 +1,11 @@
 param(
-    [switch]$Force
+    [switch]$Force,
+    [string]$InstallDir = "$env:APPDATA\pngquant",
+    [switch]$NoModifyPath
 )
 
 $ErrorActionPreference = "Stop"
+$DownloadUrl = "https://pngquant.org/pngquant-windows.zip"
 
 function Test-PngquantInstalled {
     try {
@@ -21,51 +24,102 @@ function Test-ScoopInstalled {
         Write-Host "scoop 已安装: $($result.Source)" -ForegroundColor Green
         return $true
     } catch {
-        Write-Host "scoop 未安装" -ForegroundColor Yellow
         return $false
     }
 }
 
-function Install-Scoop {
-    Write-Host "正在安装 scoop..." -ForegroundColor Cyan
-    
-    $scoopInstallScript = "irm get.scoop.sh | iex"
-    
-    try {
-        Invoke-Expression $scoopInstallScript
-        Write-Host "scoop 安装成功" -ForegroundColor Green
-        
-        $env:Path = [System.Environment]::GetEnvironmentVariable("Path","User") + ";" + [System.Environment]::GetEnvironmentVariable("Path","Machine")
-        
-        return $true
-    } catch {
-        Write-Host "scoop 安装失败: $_" -ForegroundColor Red
-        return $false
-    }
-}
-
-function Install-Pngquant {
+function Install-ViaScoop {
     Write-Host "正在使用 scoop 安装 pngquant..." -ForegroundColor Cyan
-    
     try {
         scoop install pngquant
         Write-Host "pngquant 安装成功" -ForegroundColor Green
         return $true
     } catch {
-        Write-Host "pngquant 安装失败: $_" -ForegroundColor Red
+        Write-Host "scoop 安装 pngquant 失败: $_" -ForegroundColor Red
         return $false
     }
 }
 
+function Install-Manual {
+    Write-Host "正在从 $DownloadUrl 下载 pngquant..." -ForegroundColor Cyan
+
+    $zipPath = "$env:TEMP\pngquant-windows.zip"
+    $extractTemp = "$env:TEMP\pngquant_extract"
+
+    try {
+        # Download
+        $wc = New-Object System.Net.WebClient
+        $wc.DownloadFile($DownloadUrl, $zipPath)
+
+        # Clean up previous temp extract
+        if (Test-Path $extractTemp) {
+            Remove-Item $extractTemp -Recurse -Force
+        }
+
+        # Extract
+        Expand-Archive -Path $zipPath -DestinationPath $extractTemp
+
+        # Create install dir
+        if (-not (Test-Path $InstallDir)) {
+            New-Item -ItemType Directory -Path $InstallDir -Force | Out-Null
+        }
+
+        # Copy exe files to install dir
+        $exeFiles = Get-ChildItem -Path $extractTemp -Filter "*.exe" -Recurse
+        foreach ($exe in $exeFiles) {
+            Copy-Item -Path $exe.FullName -Destination $InstallDir -Force
+            Write-Host "  已安装: $($exe.Name)" -ForegroundColor Green
+        }
+
+        # Cleanup
+        Remove-Item $zipPath -Force -ErrorAction SilentlyContinue
+        Remove-Item $extractTemp -Recurse -Force -ErrorAction SilentlyContinue
+
+        # Add to PATH
+        if (-not $NoModifyPath) {
+            Add-ToPath $InstallDir
+        }
+
+        return $true
+    } catch {
+        Write-Host "手动安装失败: $_" -ForegroundColor Red
+        return $false
+    }
+}
+
+function Add-ToPath($LiteralPath) {
+    $RegistryPath = 'registry::HKEY_CURRENT_USER\Environment'
+    $CurrentDirs = (Get-Item -LiteralPath $RegistryPath).GetValue(
+        'Path', '', 'DoNotExpandEnvironmentNames'
+    ) -split ';' -ne ''
+
+    if ($LiteralPath -in $CurrentDirs) {
+        Write-Host "安装目录已在 PATH 中: $LiteralPath" -ForegroundColor Green
+        return
+    }
+
+    $NewPath = (,$LiteralPath + $CurrentDirs) -join ';'
+    Set-ItemProperty -Type ExpandString -LiteralPath $RegistryPath Path $NewPath
+
+    # 通知系统环境变量已更新
+    $DummyName = 'pngquant-install-' + [guid]::NewGuid().ToString()
+    [Environment]::SetEnvironmentVariable($DummyName, 'dummy', 'User')
+    [Environment]::SetEnvironmentVariable($DummyName, [NullString]::value, 'User')
+
+    Write-Host "已将 $LiteralPath 添加到用户 PATH" -ForegroundColor Green
+}
+
+# ============================================================
 Write-Host "========================================" -ForegroundColor Cyan
 Write-Host "  pngquant 安装脚本" -ForegroundColor Cyan
 Write-Host "========================================" -ForegroundColor Cyan
 Write-Host ""
 
 if (Test-PngquantInstalled) {
-    Write-Host ""
-    Write-Host "pngquant 已经安装，无需重复安装。" -ForegroundColor Green
     if (-not $Force) {
+        Write-Host ""
+        Write-Host "pngquant 已经安装，无需重复安装。" -ForegroundColor Green
+        Write-Host "如需强制重新安装，请使用 -Force 参数。" -ForegroundColor Yellow
         exit 0
     }
     Write-Host "使用 -Force 参数强制重新安装..." -ForegroundColor Yellow
@@ -73,42 +127,40 @@ if (Test-PngquantInstalled) {
 
 Write-Host ""
 
-if (-not (Test-ScoopInstalled)) {
-    Write-Host ""
-    Write-Host "scoop 未安装，正在安装 scoop..." -ForegroundColor Yellow
-    
-    if (-not (Install-Scoop)) {
+if (Test-ScoopInstalled) {
+    Write-Host "检测到 scoop，使用 scoop 安装..." -ForegroundColor Cyan
+    if (Install-ViaScoop) {
         Write-Host ""
-        Write-Host "scoop 安装失败，请手动安装后重试。" -ForegroundColor Red
-        Write-Host "手动安装命令: irm get.scoop.sh | iex" -ForegroundColor Yellow
-        exit 1
+        pngquant --version
+        exit 0
     }
-    
-    Write-Host ""
-    Write-Host "请重新运行此脚本以继续安装 pngquant。" -ForegroundColor Yellow
-    Write-Host "或者手动运行: scoop install pngquant" -ForegroundColor Yellow
-    exit 0
+    Write-Host "scoop 安装失败，回退到手动安装方式..." -ForegroundColor Yellow
+} else {
+    Write-Host "未检测到 scoop，使用手动安装方式..." -ForegroundColor Cyan
 }
 
+Write-Host "安装目录: $InstallDir" -ForegroundColor Cyan
 Write-Host ""
 
-if (Install-Pngquant) {
+if (Install-Manual) {
     Write-Host ""
     Write-Host "========================================" -ForegroundColor Green
     Write-Host "  pngquant 安装完成！" -ForegroundColor Green
     Write-Host "========================================" -ForegroundColor Green
-    
-    $pngquantPath = Get-Command pngquant -ErrorAction SilentlyContinue
-    if ($pngquantPath) {
-        Write-Host "安装路径: $($pngquantPath.Source)" -ForegroundColor Cyan
+    Write-Host "安装路径: $InstallDir" -ForegroundColor Cyan
+
+    try {
+        $env:Path = "$InstallDir;$env:Path"
+        Write-Host ""
+        Write-Host "验证安装:" -ForegroundColor Cyan
+        pngquant --version
+    } catch {
+        Write-Host ""
+        Write-Host "安装文件已就绪，请重启终端后运行 pngquant --version 验证。" -ForegroundColor Yellow
     }
-    
-    Write-Host ""
-    Write-Host "验证安装:" -ForegroundColor Cyan
-    pngquant --version
 } else {
     Write-Host ""
     Write-Host "pngquant 安装失败。" -ForegroundColor Red
-    Write-Host "请尝试手动安装: scoop install pngquant" -ForegroundColor Yellow
+    Write-Host "请尝试手动下载: $DownloadUrl" -ForegroundColor Yellow
     exit 1
 }
diff --git a/uv-installer.ps1 b/uv-installer.ps1
new file mode 100644
index 0000000..180f7f1
--- /dev/null
+++ b/uv-installer.ps1
@@ -0,0 +1,683 @@
+# Licensed under the MIT license
+# <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+<#
+.SYNOPSIS
+
+The installer for uv (auto-detects latest release)
+
+.DESCRIPTION
+
+This script auto-detects the latest uv release from GitHub and fetches an appropriate archive from
+various download sources, then unpacks the binaries and installs them to the first of the following locations
+
+    $env:XDG_BIN_HOME
+    $env:XDG_DATA_HOME/../bin
+    $HOME/.local/bin
+
+It will then add that dir to PATH by editing your Environment.Path registry key
+
+.PARAMETER NoModifyPath
+Don't add the install directory to PATH
+
+.PARAMETER Help
+Print help
+
+#>
+
+param (
+    [Parameter(HelpMessage = "Don't add the install directory to PATH")]
+    [switch]$NoModifyPath,
+    [Parameter(HelpMessage = "Print Help")]
+    [switch]$Help
+)
+function Get-LatestVersion {
+  if ($env:UV_INSTALLER_VERSION) {
+    return $env:UV_INSTALLER_VERSION
+  }
+
+  $fallback_version = "0.11.20"
+
+  try {
+    $http = New-Object System.Net.Http.HttpClient
+    $http.Timeout = [TimeSpan]::FromSeconds(5)
+    $http.DefaultRequestHeaders.Add("User-Agent", "PowerShell/uv-installer")
+    $http.DefaultRequestHeaders.Add("Accept", "application/vnd.github+json")
+    $response = $http.GetStringAsync("https://api.github.com/repos/astral-sh/uv/releases/latest").Result
+    $json = $response | ConvertFrom-Json
+    $version = $json.tag_name
+    if ($version) {
+      Write-Information "Latest uv version: $version"
+      return $version
+    }
+  } catch {
+    Write-Information "Could not reach GitHub API, using fallback version $fallback_version"
+  }
+
+  return $fallback_version
+}
+
+$app_name = 'uv'
+$app_version = Get-LatestVersion
+if ($env:UV_DOWNLOAD_URL) {
+  $ArtifactDownloadUrls = @($env:UV_DOWNLOAD_URL)
+} elseif ($env:INSTALLER_DOWNLOAD_URL) {
+  $ArtifactDownloadUrls = @($env:INSTALLER_DOWNLOAD_URL)
+} elseif ($env:UV_INSTALLER_GHE_BASE_URL) {
+  $installer_base_url = $env:UV_INSTALLER_GHE_BASE_URL
+  $ArtifactDownloadUrls = @("$installer_base_url/astral-sh/uv/releases/download/$app_version")
+} elseif ($env:UV_INSTALLER_GITHUB_BASE_URL) {
+  $installer_base_url = $env:UV_INSTALLER_GITHUB_BASE_URL
+  $ArtifactDownloadUrls = @("$installer_base_url/astral-sh/uv/releases/download/$app_version")
+} else {
+  $ArtifactDownloadUrls = @(
+    "https://releases.astral.sh/github/uv/releases/download/$app_version",
+    "https://mirror.ghproxy.com/https://github.com/astral-sh/uv/releases/download/$app_version",
+    "https://ghproxy.net/https://github.com/astral-sh/uv/releases/download/$app_version",
+    "https://github.com/astral-sh/uv/releases/download/$app_version"
+  )
+}
+
+$auth_token = $env:UV_GITHUB_TOKEN
+
+$receipt = @"
+{"binaries":["CARGO_DIST_BINS"],"binary_aliases":{},"cdylibs":["CARGO_DIST_DYLIBS"],"cstaticlibs":["CARGO_DIST_STATICLIBS"],"install_layout":"unspecified","install_prefix":"AXO_INSTALL_PREFIX","modify_path":true,"provider":{"source":"cargo-dist","version":"0.31.0"},"source":{"app_name":"uv","name":"uv","owner":"astral-sh","release_type":"github"},"version":"$app_version"}
+"@
+if ($env:XDG_CONFIG_HOME) {
+  $receipt_home = "${env:XDG_CONFIG_HOME}\uv"
+} else {
+  $receipt_home = "${env:LOCALAPPDATA}\uv"
+}
+
+if ($env:UV_DISABLE_UPDATE) {
+  $install_updater = $false
+} else {
+  $install_updater = $true
+}
+
+if ($NoModifyPath) {
+    Write-Information "-NoModifyPath has been deprecated; please set UV_NO_MODIFY_PATH=1 in the environment"
+}
+
+if ($env:UV_NO_MODIFY_PATH) {
+    $NoModifyPath = $true
+}
+
+$unmanaged_install = $env:UV_UNMANAGED_INSTALL
+
+if ($unmanaged_install) {
+  $NoModifyPath = $true
+  $install_updater = $false
+}
+
+function Install-Binary($install_args) {
+  if ($Help) {
+    Get-Help $PSCommandPath -Detailed
+    Exit
+  }
+
+  Initialize-Environment
+
+  # Platform info injected by dist
+  $platforms = @{
+    "aarch64-pc-windows-gnu" = @{
+      "artifact_name" = "uv-aarch64-pc-windows-msvc.zip"
+      "bins" = @("uv.exe", "uvx.exe", "uvw.exe")
+      "libs" = @()
+      "staticlibs" = @()
+      "zip_ext" = ".zip"
+      "aliases" = @{
+      }
+      "aliases_json" = '{}'
+    }
+    "aarch64-pc-windows-msvc" = @{
+      "artifact_name" = "uv-aarch64-pc-windows-msvc.zip"
+      "bins" = @("uv.exe", "uvx.exe", "uvw.exe")
+      "libs" = @()
+      "staticlibs" = @()
+      "zip_ext" = ".zip"
+      "aliases" = @{
+      }
+      "aliases_json" = '{}'
+    }
+    "i686-pc-windows-gnu" = @{
+      "artifact_name" = "uv-i686-pc-windows-msvc.zip"
+      "bins" = @("uv.exe", "uvx.exe", "uvw.exe")
+      "libs" = @()
+      "staticlibs" = @()
+      "zip_ext" = ".zip"
+      "aliases" = @{
+      }
+      "aliases_json" = '{}'
+    }
+    "i686-pc-windows-msvc" = @{
+      "artifact_name" = "uv-i686-pc-windows-msvc.zip"
+      "bins" = @("uv.exe", "uvx.exe", "uvw.exe")
+      "libs" = @()
+      "staticlibs" = @()
+      "zip_ext" = ".zip"
+      "aliases" = @{
+      }
+      "aliases_json" = '{}'
+    }
+    "x86_64-pc-windows-gnu" = @{
+      "artifact_name" = "uv-x86_64-pc-windows-msvc.zip"
+      "bins" = @("uv.exe", "uvx.exe", "uvw.exe")
+      "libs" = @()
+      "staticlibs" = @()
+      "zip_ext" = ".zip"
+      "aliases" = @{
+      }
+      "aliases_json" = '{}'
+    }
+    "x86_64-pc-windows-msvc" = @{
+      "artifact_name" = "uv-x86_64-pc-windows-msvc.zip"
+      "bins" = @("uv.exe", "uvx.exe", "uvw.exe")
+      "libs" = @()
+      "staticlibs" = @()
+      "zip_ext" = ".zip"
+      "aliases" = @{
+      }
+      "aliases_json" = '{}'
+    }
+  }
+
+  $arch = Get-TargetTriple $platforms
+  if (-not $platforms.ContainsKey($arch)) {
+    $platforms_json = ConvertTo-Json $platforms
+    throw "ERROR: could not find binaries for this platform. Last platform tried: $arch platform info: $platforms_json"
+  }
+  Write-Information "downloading $app_name $app_version ($arch)"
+
+  $download_result = $false
+  $first_url = $true
+  foreach ($url in $ArtifactDownloadUrls) {
+    if (-not $first_url) {
+      Write-Information "trying alternative download URL"
+    }
+    $first_url = $false
+
+    try {
+      $fetched = Download -download_url "$url" -platforms $platforms -arch $arch
+      $download_result = $true
+      break
+    } catch {
+      Write-Information "failed to download from $url"
+      # keep going, maybe we have backup download URLs
+    }
+  }
+  if (-not $download_result) {
+    throw "failed to download binaries"
+  }
+
+  # FIXME: add a flag that lets the user not do this step
+  try {
+    Invoke-Installer -artifacts $fetched -platforms $platforms "$install_args"
+  } catch {
+    throw @"
+We encountered an error trying to perform the installation;
+please review the error messages below.
+
+$_
+"@
+  }
+}
+
+function Get-TargetTriple($platforms) {
+  $double = Get-Arch
+  if ($platforms.Contains("$double-msvc")) {
+    return "$double-msvc"
+  } else {
+    return "$double-gnu"
+  }
+}
+
+function Get-Arch() {
+  try {
+    # NOTE: this might return X64 on ARM64 Windows, which is OK since emulation is available.
+    # It works correctly starting in PowerShell Core 7.3 and Windows PowerShell in Win 11 22H2.
+    # Ideally this would just be
+    #   [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture
+    # but that gets a type from the wrong assembly on Windows PowerShell (i.e. not Core)
+    $a = [System.Reflection.Assembly]::LoadWithPartialName("System.Runtime.InteropServices.RuntimeInformation")
+    $t = $a.GetType("System.Runtime.InteropServices.RuntimeInformation")
+    $p = $t.GetProperty("OSArchitecture")
+    # Possible OSArchitecture Values: https://learn.microsoft.com/dotnet/api/system.runtime.interopservices.architecture
+    # Rust supported platforms: https://doc.rust-lang.org/stable/rustc/platform-support.html
+    switch ($p.GetValue($null).ToString())
+    {
+      "X86" { return "i686-pc-windows" }
+      "X64" { return "x86_64-pc-windows" }
+      "Arm" { return "thumbv7a-pc-windows" }
+      "Arm64" { return "aarch64-pc-windows" }
+    }
+  } catch {
+    # The above was added in .NET 4.7.1, so Windows PowerShell in versions of Windows
+    # prior to Windows 10 v1709 may not have this API.
+    Write-Verbose "Get-TargetTriple: Exception when trying to determine OS architecture."
+    Write-Verbose $_
+  }
+
+  # This is available in .NET 4.0. We already checked for PS 5, which requires .NET 4.5.
+  Write-Verbose("Get-TargetTriple: falling back to Is64BitOperatingSystem.")
+  if ([System.Environment]::Is64BitOperatingSystem) {
+    return "x86_64-pc-windows"
+  } else {
+    return "i686-pc-windows"
+  }
+}
+
+function WebProxyFromUrl {
+    param([string]$ProxyUrl)
+
+    if ([string]::IsNullOrWhiteSpace($ProxyUrl)) {
+        return $null
+    }
+
+    try {
+        # Parse the proxy URL
+        $uri = [System.Uri]$ProxyUrl
+
+        # Create WebProxy instance
+        $webProxy = New-Object System.Net.WebProxy($uri)
+
+        # Set credentials if provided in URL
+        if (-not [string]::IsNullOrEmpty($uri.UserInfo)) {
+            $userInfo = $uri.UserInfo.Split(':')
+            $username = [System.Uri]::UnescapeDataString($userInfo[0])
+            $password = if ($null -eq $userInfo[1]) { "" } else { [System.Uri]::UnescapeDataString($userInfo[1]) }
+            $webProxy.Credentials = New-Object System.Net.NetworkCredential($username, $password)
+        }
+
+        return $webProxy
+    }
+    catch {
+        Write-Verbose("Failed to parse proxy URL '$ProxyUrl': $($_.Exception.Message)")
+        return $null
+    }
+}
+
+function WebProxyFromEnvironment {
+    $httpsProxy = [System.Environment]::GetEnvironmentVariable("HTTPS_PROXY")
+    $allProxy = [System.Environment]::GetEnvironmentVariable("ALL_PROXY")
+    $proxyUrl = if (-not [string]::IsNullOrWhiteSpace($httpsProxy)) { $httpsProxy } else { $allProxy }
+    $webProxy = WebProxyFromUrl -ProxyUrl $proxyUrl
+    return $webProxy
+}
+
+function Download($download_url, $platforms, $arch) {
+  # Lookup what we expect this platform to look like
+  $info = $platforms[$arch]
+  $zip_ext = $info["zip_ext"]
+  $bin_names = $info["bins"]
+  $lib_names = $info["libs"]
+  $staticlib_names = $info["staticlibs"]
+  $artifact_name = $info["artifact_name"]
+
+  # Make a new temp dir to unpack things to
+  $tmp = New-Temp-Dir
+  $dir_path = "$tmp\$app_name$zip_ext"
+
+  # Download and unpack!
+  $url = "$download_url/$artifact_name"
+  Write-Verbose "  from $url"
+  Write-Verbose "  to $dir_path"
+  $wc = New-Object Net.Webclient
+  $proxy = WebProxyFromEnvironment
+  if ($null -ne $proxy) {
+    $wc.Proxy = $proxy
+  }
+  if ($auth_token) {
+    $wc.Headers["Authorization"] = "Bearer $auth_token"
+  }
+  $wc.downloadFile($url, $dir_path)
+
+  Write-Verbose "Unpacking to $tmp"
+
+  # Select the tool to unpack the files with.
+  #
+  # As of windows 10(?), powershell comes with tar preinstalled, but in practice
+  # it only seems to support .tar.gz, and not xz/zstd. Still, we should try to
+  # forward all tars to it in case the user has a machine that can handle it!
+  switch -Wildcard ($zip_ext) {
+    ".zip" {
+      Expand-Archive -Path $dir_path -DestinationPath "$tmp";
+      Break
+    }
+    ".tar.*" {
+      tar xf $dir_path --strip-components 1 -C "$tmp";
+      Break
+    }
+    Default {
+      throw "ERROR: unknown archive format $zip_ext"
+    }
+  }
+
+  # Let the next step know what to copy
+  $bin_paths = @()
+  foreach ($bin_name in $bin_names) {
+    Write-Verbose "  Unpacked $bin_name"
+    $bin_paths += "$tmp\$bin_name"
+  }
+  $lib_paths = @()
+  foreach ($lib_name in $lib_names) {
+    Write-Verbose "  Unpacked $lib_name"
+    $lib_paths += "$tmp\$lib_name"
+  }
+  $staticlib_paths = @()
+  foreach ($lib_name in $staticlib_names) {
+    Write-Verbose "  Unpacked $lib_name"
+    $staticlib_paths += "$tmp\$lib_name"
+  }
+
+  if (($null -ne $info["updater"]) -and $install_updater) {
+    $updater_id = $info["updater"]["artifact_name"]
+    $updater_url = "$download_url/$updater_id"
+    $out_name = "$tmp\uv-update.exe"
+
+    $wc.downloadFile($updater_url, $out_name)
+    $bin_paths += $out_name
+  }
+
+  return @{
+    "bin_paths" = $bin_paths
+    "lib_paths" = $lib_paths
+    "staticlib_paths" = $staticlib_paths
+  }
+}
+
+function Invoke-Installer($artifacts, $platforms) {
+  # Replaces the placeholder binary entry with the actual list of binaries
+  $arch = Get-TargetTriple $platforms
+
+  if (-not $platforms.ContainsKey($arch)) {
+    $platforms_json = ConvertTo-Json $platforms
+    throw "ERROR: could not find binaries for this platform. Last platform tried: $arch platform info: $platforms_json"
+  }
+
+  $info = $platforms[$arch]
+
+  # Forces the install to occur at this path, not the default
+  $force_install_dir = $null
+  $install_layout = "unspecified"
+  # Check the newer app-specific variable before falling back
+  # to the older generic one
+  if (($env:UV_INSTALL_DIR)) {
+    $force_install_dir = $env:UV_INSTALL_DIR
+    $install_layout = "flat"
+  } elseif (($env:CARGO_DIST_FORCE_INSTALL_DIR)) {
+    $force_install_dir = $env:CARGO_DIST_FORCE_INSTALL_DIR
+    $install_layout = "flat"
+  } elseif ($unmanaged_install) {
+    $force_install_dir = $unmanaged_install
+    $install_layout = "flat"
+  }
+
+  # Check if the install layout should be changed from `flat` to `cargo-home`
+  # for backwards compatible updates of applications that switched layouts.
+  if (($force_install_dir) -and ($install_layout -eq "flat")) {
+    # If the install directory is targeting the Cargo home directory, then
+    # we assume this application was previously installed that layout
+    # Note the installer passes the path with `\\` separators, but here they are
+    # `\` so we normalize for comparison. We don't use `Resolve-Path` because they
+    # may not exist.
+    $cargo_home = if ($env:CARGO_HOME) { $env:CARGO_HOME } else {
+        Join-Path $(if ($HOME) { $HOME } else { "." }) ".cargo"
+    }
+    if ($force_install_dir.Replace('\\', '\') -eq $cargo_home) {
+      $install_layout = "cargo-home"
+    }
+  }
+
+  # The actual path we're going to install to
+  $dest_dir = $null
+  $dest_dir_lib = $null
+  # The install prefix we write to the receipt.
+  # For organized install methods like CargoHome, which have
+  # subdirectories, this is the root without `/bin`. For other
+  # methods, this is the same as `_install_dir`.
+  $receipt_dest_dir = $null
+  # Before actually consulting the configured install strategy, see
+  # if we're overriding it.
+  if (($force_install_dir)) {
+    switch ($install_layout) {
+      "hierarchical" {
+        $dest_dir = Join-Path $force_install_dir "bin"
+        $dest_dir_lib = Join-Path $force_install_dir "lib"
+      }
+      "cargo-home" {
+        $dest_dir = Join-Path $force_install_dir "bin"
+        $dest_dir_lib = $dest_dir
+      }
+      "flat" {
+        $dest_dir = $force_install_dir
+        $dest_dir_lib = $dest_dir
+      }
+      Default {
+        throw "Error: unrecognized installation layout: $install_layout"
+      }
+    }
+    $receipt_dest_dir = $force_install_dir
+  }
+  if (-Not $dest_dir) {
+    # Install to $env:XDG_BIN_HOME
+    $dest_dir = if (($base_dir = $env:XDG_BIN_HOME)) {
+      Join-Path $base_dir ""
+    }
+    $dest_dir_lib = $dest_dir
+    $receipt_dest_dir = $dest_dir
+    $install_layout = "flat"
+  }
+  if (-Not $dest_dir) {
+    # Install to $env:XDG_DATA_HOME/../bin
+    $dest_dir = if (($base_dir = $env:XDG_DATA_HOME)) {
+      Join-Path $base_dir "../bin"
+    }
+    $dest_dir_lib = $dest_dir
+    $receipt_dest_dir = $dest_dir
+    $install_layout = "flat"
+  }
+  if (-Not $dest_dir) {
+    # Install to $HOME/.local/bin
+    $dest_dir = if (($base_dir = $HOME)) {
+      Join-Path $base_dir ".local/bin"
+    }
+    $dest_dir_lib = $dest_dir
+    $receipt_dest_dir = $dest_dir
+    $install_layout = "flat"
+  }
+
+  # Looks like all of the above assignments failed
+  if (-Not $dest_dir) {
+    throw "ERROR: could not find a valid path to install to; please check the installation instructions"
+  }
+
+  # The replace call here ensures proper escaping is inlined into the receipt
+  $receipt = $receipt.Replace('AXO_INSTALL_PREFIX', $receipt_dest_dir.replace("\", "\\"))
+  $receipt = $receipt.Replace('"install_layout":"unspecified"', -join('"install_layout":"', $install_layout, '"'))
+
+  $dest_dir = New-Item -Force -ItemType Directory -Path $dest_dir
+  $dest_dir_lib = New-Item -Force -ItemType Directory -Path $dest_dir_lib
+  Write-Information "installing to $dest_dir"
+  # Just copy the binaries from the temp location to the install dir
+  foreach ($bin_path in $artifacts["bin_paths"]) {
+    $installed_file = Split-Path -Path "$bin_path" -Leaf
+    Copy-Item "$bin_path" -Destination "$dest_dir" -ErrorAction Stop
+    Remove-Item "$bin_path" -Recurse -Force -ErrorAction Stop
+    Write-Information "  $installed_file"
+
+    if (($dests = $info["aliases"][$installed_file])) {
+      $source = Join-Path "$dest_dir" "$installed_file"
+      foreach ($dest_name in $dests) {
+          $dest = Join-Path $dest_dir $dest_name
+          $null = New-Item -ItemType HardLink -Target "$source" -Path "$dest" -Force -ErrorAction Stop
+      }
+    }
+  }
+  foreach ($lib_path in $artifacts["lib_paths"]) {
+    $installed_file = Split-Path -Path "$lib_path" -Leaf
+    Copy-Item "$lib_path" -Destination "$dest_dir_lib" -ErrorAction Stop
+    Remove-Item "$lib_path" -Recurse -Force -ErrorAction Stop
+    Write-Information "  $installed_file"
+  }
+  foreach ($lib_path in $artifacts["staticlib_paths"]) {
+    $installed_file = Split-Path -Path "$lib_path" -Leaf
+    Copy-Item "$lib_path" -Destination "$dest_dir_lib" -ErrorAction Stop
+    Remove-Item "$lib_path" -Recurse -Force -ErrorAction Stop
+    Write-Information "  $installed_file"
+  }
+
+  $formatted_bins = ($info["bins"] | ForEach-Object { '"' + $_ + '"' }) -join ","
+  $receipt = $receipt.Replace('"CARGO_DIST_BINS"', $formatted_bins)
+  $formatted_libs = ($info["libs"] | ForEach-Object { '"' + $_ + '"' }) -join ","
+  $receipt = $receipt.Replace('"CARGO_DIST_DYLIBS"', $formatted_libs)
+  $formatted_staticlibs = ($info["staticlibs"] | ForEach-Object { '"' + $_ + '"' }) -join ","
+  $receipt = $receipt.Replace('"CARGO_DIST_STATICLIBS"', $formatted_staticlibs)
+  # Also replace the aliases with the arch-specific one
+  $receipt = $receipt.Replace('"binary_aliases":{}', -join('"binary_aliases":',  $info['aliases_json']))
+  if ($NoModifyPath) {
+    $receipt = $receipt.Replace('"modify_path":true', '"modify_path":false')
+  }
+
+  # Write the install receipt
+  if ($install_updater) {
+    $null = New-Item -Path $receipt_home -ItemType "directory" -ErrorAction SilentlyContinue
+    # Trying to get Powershell 5.1 (not 6+, which is fake and lies) to write utf8 is a crime
+    # because "Out-File -Encoding utf8" actually still means utf8BOM, so we need to pull out
+    # .NET's APIs which actually do what you tell them (also apparently utf8NoBOM is the
+    # default in newer .NETs but I'd rather not rely on that at this point).
+    $Utf8NoBomEncoding = New-Object System.Text.UTF8Encoding $False
+    [IO.File]::WriteAllLines("$receipt_home/uv-receipt.json", "$receipt", $Utf8NoBomEncoding)
+  }
+
+  # Respect the environment, but CLI takes precedence
+  if ($null -eq $NoModifyPath) {
+    $NoModifyPath = $env:INSTALLER_NO_MODIFY_PATH
+  }
+
+  Write-Information "everything's installed!"
+  if (-not $NoModifyPath) {
+    Add-Ci-Path $dest_dir
+    if (Add-Path $dest_dir) {
+        Write-Information ""
+        Write-Information "To add $dest_dir to your PATH, either restart your shell or run:"
+        Write-Information ""
+        Write-Information "    set Path=$dest_dir;%Path%   (cmd)"
+        Write-Information "    `$env:Path = `"$dest_dir;`$env:Path`"   (powershell)"
+    }
+  }
+}
+
+# Attempt to do CI-specific rituals to get the install-dir on PATH faster
+function Add-Ci-Path($OrigPathToAdd) {
+  # If GITHUB_PATH is present, then write install_dir to the file it refs.
+  # After each GitHub Action, the contents will be added to PATH.
+  # So if you put a curl | sh for this script in its own "run" step,
+  # the next step will have this dir on PATH.
+  #
+  # Note that GITHUB_PATH will not resolve any variables, so we in fact
+  # want to write the install dir and not an expression that evals to it
+  if (($gh_path = $env:GITHUB_PATH)) {
+    Write-Output "$OrigPathToAdd" | Out-File -FilePath "$gh_path" -Encoding utf8 -Append
+  }
+}
+
+# Try to permanently add the given path to the user-level
+# PATH via the registry
+#
+# Returns true if the registry was modified, otherwise returns false
+# (indicating it was already on PATH)
+#
+# This is a lightly modified version of this solution:
+# https://stackoverflow.com/questions/69236623/adding-path-permanently-to-windows-using-powershell-doesnt-appear-to-work/69239861#69239861
+function Add-Path($LiteralPath) {
+  Write-Verbose "Adding $LiteralPath to your user-level PATH"
+
+  $RegistryPath = 'registry::HKEY_CURRENT_USER\Environment'
+
+  # Note the use of the .GetValue() method to ensure that the *unexpanded* value is returned.
+  # If 'Path' is not an existing item in the registry, '' is returned.
+  $CurrentDirectories = (Get-Item -LiteralPath $RegistryPath).GetValue('Path', '', 'DoNotExpandEnvironmentNames') -split ';' -ne ''
+
+  if ($LiteralPath -in $CurrentDirectories) {
+    Write-Verbose "Install directory $LiteralPath already on PATH, all done!"
+    return $false
+  }
+
+  Write-Verbose "Actually mutating 'Path' Property"
+
+  # Add the new path to the front of the PATH.
+  # The ',' turns $LiteralPath into an array, which the array of
+  # $CurrentDirectories is then added to.
+  $NewPath = (,$LiteralPath + $CurrentDirectories) -join ';'
+
+  # Update the registry. Will create the property if it did not already exist.
+  # Note the use of ExpandString to create a registry property with a REG_EXPAND_SZ data type.
+  Set-ItemProperty -Type ExpandString -LiteralPath $RegistryPath Path $NewPath
+
+  # Broadcast WM_SETTINGCHANGE to get the Windows shell to reload the
+  # updated environment, via a dummy [Environment]::SetEnvironmentVariable() operation.
+  $DummyName = 'cargo-dist-' + [guid]::NewGuid().ToString()
+  [Environment]::SetEnvironmentVariable($DummyName, 'cargo-dist-dummy', 'User')
+  [Environment]::SetEnvironmentVariable($DummyName, [NullString]::value, 'User')
+
+  Write-Verbose "Successfully added $LiteralPath to your user-level PATH"
+  return $true
+}
+
+function Initialize-Environment() {
+  If (($PSVersionTable.PSVersion.Major) -lt 5) {
+    throw @"
+Error: PowerShell 5 or later is required to install $app_name.
+Upgrade PowerShell:
+
+    https://docs.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell
+
+"@
+  }
+
+  # show notification to change execution policy:
+  $allowedExecutionPolicy = @('Unrestricted', 'RemoteSigned', 'Bypass')
+  If ((Get-ExecutionPolicy).ToString() -notin $allowedExecutionPolicy) {
+    throw @"
+Error: PowerShell requires an execution policy in [$($allowedExecutionPolicy -join ", ")] to run $app_name. For example, to set the execution policy to 'RemoteSigned' please run:
+
+    Set-ExecutionPolicy RemoteSigned -scope CurrentUser
+
+"@
+  }
+
+  # GitHub requires TLS 1.2
+  If ([System.Enum]::GetNames([System.Net.SecurityProtocolType]) -notcontains 'Tls12') {
+    throw @"
+Error: Installing $app_name requires at least .NET Framework 4.5
+Please download and install it first:
+
+    https://www.microsoft.com/net/download
+
+"@
+  }
+}
+
+function New-Temp-Dir() {
+  [CmdletBinding(SupportsShouldProcess)]
+  param()
+  $parent = [System.IO.Path]::GetTempPath()
+  [string] $name = [System.Guid]::NewGuid()
+  New-Item -ItemType Directory -Path (Join-Path $parent $name)
+}
+
+# PSScriptAnalyzer doesn't like how we use our params as globals, this calms it
+$Null = $ArtifactDownloadUrls, $NoModifyPath, $Help
+# Make Write-Information statements be visible
+$InformationPreference = "Continue"
+
+# The default interactive handler
+try {
+  Install-Binary "$Args"
+} catch {
+  Write-Information $_
+  exit 1
+}