diff --git a/README.md b/README.md
index 76f5f7e16..b24dee511 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,19 @@ The server component written in Go. This handles data synchronization, storage,
 ### **synkronus-cli**
 A command-line utility to interact with the Synkronus server. Use it to manage custom app data, handle user administration, export data to Parquet format, and perform various administrative tasks.
 
+You can install the CLI by running this command:
+
+#### Powershell
+```powershell
+irm https://raw.githubusercontent.com/OpenDataEnsemble/ode/main/scripts/install-synkronus-cli.ps1 | iex
+```
+
+#### Mac OS / zsh
+```sh
+curl -fsSL https://raw.githubusercontent.com/OpenDataEnsemble/ode/main/scripts/install-synkronus-cli.sh | bash
+```
+
+
 **License note:** this component is currently **GPL-2.0-or-later** (see `synkronus-cli/LICENSE`) while the QR PNG stack depends on GPL-classified libraries; we plan to swap in a stdlib-only renderer and return the CLI to **MIT**. See `synkronus-cli/FOLLOWUP-custom-qrcode-writer.md` and `THIRD_PARTY_NOTICES.md`.
 
 ### **synkronus-portal**
diff --git a/scripts/install-synkronus-cli.ps1 b/scripts/install-synkronus-cli.ps1
new file mode 100644
index 000000000..a2591b3e8
--- /dev/null
+++ b/scripts/install-synkronus-cli.ps1
@@ -0,0 +1,182 @@
+[CmdletBinding()]
+param(
+    [string]$Version = "latest",
+    [string]$Owner = "OpenDataEnsemble",
+    [string]$Repo = "ode",
+    [string]$AssetName = "synkronus-cli_Windows_x86_64.zip",
+    [string]$BinaryName = "synk.exe",
+    [string]$CommandName = "synk",
+    [string]$InstallDir = "$env:LOCALAPPDATA\Programs\synkronus-cli"
+)
+
+$ErrorActionPreference = "Stop"
+
+function Write-Step($Message) {
+    Write-Host "==> $Message"
+}
+
+function Ensure-CommandAvailable($CommandName) {
+    if (-not (Get-Command $CommandName -ErrorAction SilentlyContinue)) {
+        throw "Required command not found: $CommandName"
+    }
+}
+
+function Get-DownloadUrl {
+    param(
+        [string]$Owner,
+        [string]$Repo,
+        [string]$Version,
+        [string]$AssetName
+    )
+
+    if ($Version -eq "latest") {
+        return "https://github.com/$Owner/$Repo/releases/latest/download/$AssetName"
+    }
+
+    return "https://github.com/$Owner/$Repo/releases/download/$Version/$AssetName"
+}
+
+function Add-ToUserPathIfMissing {
+    param([string]$PathToAdd)
+
+    $currentUserPath = [Environment]::GetEnvironmentVariable("Path", "User")
+    $pathEntries = @()
+
+    if ($currentUserPath) {
+        $pathEntries = $currentUserPath.Split(";") | Where-Object { $_.Trim() -ne "" }
+    }
+
+    $alreadyPresent = $pathEntries | Where-Object {
+        [System.StringComparer]::OrdinalIgnoreCase.Equals($_.TrimEnd("\"), $PathToAdd.TrimEnd("\"))
+    }
+
+    if (-not $alreadyPresent) {
+        $newPath = if ($currentUserPath -and $currentUserPath.Trim() -ne "") {
+            "$currentUserPath;$PathToAdd"
+        } else {
+            $PathToAdd
+        }
+
+        [Environment]::SetEnvironmentVariable("Path", $newPath, "User")
+        Write-Host "Added to user PATH: $PathToAdd"
+        Write-Host "Open a new terminal for the PATH change to take effect."
+    }
+    else {
+        Write-Host "Install directory already present in user PATH."
+    }
+}
+
+function Add-SynkProfileBlock {
+    param(
+        [string]$ProfilePath,
+        [string]$InstallDir,
+        [string]$BinaryName,
+        [string]$CommandName
+    )
+
+    $profileDir = Split-Path $ProfilePath -Parent
+    if (-not (Test-Path $profileDir)) {
+        New-Item -ItemType Directory -Path $profileDir -Force | Out-Null
+    }
+
+    if (-not (Test-Path $ProfilePath)) {
+        New-Item -ItemType File -Path $ProfilePath -Force | Out-Null
+    }
+
+    $existing = Get-Content $ProfilePath -Raw -ErrorAction SilentlyContinue
+    if ($null -eq $existing) {
+        $existing = ""
+    }
+
+    $markerStart = "# >>> synkronus-cli >>>"
+    $markerEnd = "# <<< synkronus-cli <<<"
+
+    $block = @"
+
+$markerStart
+`$synkExe = Join-Path "$InstallDir" "$BinaryName"
+if (Test-Path `$synkExe) {
+    Set-Alias -Name $CommandName -Value `$synkExe -Scope Global
+    try {
+        $CommandName completion powershell | Out-String | Invoke-Expression
+    } catch {
+        Write-Verbose "Failed to load $CommandName PowerShell completion."
+    }
+}
+$markerEnd
+"@
+
+    if ($existing -match [regex]::Escape($markerStart)) {
+        $pattern = [regex]::Escape($markerStart) + '.*?' + [regex]::Escape($markerEnd)
+        $updated = [regex]::Replace(
+            $existing,
+            $pattern,
+            [System.Text.RegularExpressions.MatchEvaluator]{ param($m) $block },
+            [System.Text.RegularExpressions.RegexOptions]::Singleline
+        )
+        Set-Content -Path $ProfilePath -Value $updated
+        Write-Host "Updated existing synkronus-cli profile block in $ProfilePath"
+    }
+    else {
+        if ($existing.Length -gt 0 -and -not $existing.EndsWith([Environment]::NewLine)) {
+            Add-Content -Path $ProfilePath -Value ""
+        }
+        Add-Content -Path $ProfilePath -Value $block
+        Write-Host "Added synkronus-cli alias and completion to $ProfilePath"
+    }
+}
+
+Ensure-CommandAvailable "Invoke-WebRequest"
+Ensure-CommandAvailable "Expand-Archive"
+
+$downloadUrl = Get-DownloadUrl -Owner $Owner -Repo $Repo -Version $Version -AssetName $AssetName
+$tempRoot = Join-Path $env:TEMP ("synkronus-cli-install-" + [guid]::NewGuid().ToString("N"))
+$archivePath = Join-Path $tempRoot $AssetName
+$extractDir = Join-Path $tempRoot "extract"
+$binaryPath = Join-Path $InstallDir $BinaryName
+
+try {
+    Write-Step "Preparing temporary workspace"
+    New-Item -ItemType Directory -Path $tempRoot -Force | Out-Null
+    New-Item -ItemType Directory -Path $extractDir -Force | Out-Null
+
+    Write-Step "Downloading $downloadUrl"
+    Invoke-WebRequest -Uri $downloadUrl -OutFile $archivePath
+
+    Write-Step "Extracting archive"
+    Expand-Archive -Path $archivePath -DestinationPath $extractDir -Force
+
+    Write-Step "Finding executable"
+    $exe = Get-ChildItem -Path $extractDir -Recurse -File | Where-Object { $_.Name -eq $BinaryName } | Select-Object -First 1
+    if (-not $exe) {
+        throw "Could not find $BinaryName inside archive $AssetName"
+    }
+
+    Write-Step "Installing to $InstallDir"
+    if (Test-Path $InstallDir) {
+        Remove-Item -Path $InstallDir -Recurse -Force
+    }
+    New-Item -ItemType Directory -Path $InstallDir -Force | Out-Null
+    Copy-Item -Path $exe.FullName -Destination $binaryPath -Force
+
+    Write-Step "Updating PATH"
+    Add-ToUserPathIfMissing -PathToAdd $InstallDir
+
+    Write-Step "Updating PowerShell profile"
+    Add-SynkProfileBlock `
+        -ProfilePath $PROFILE.CurrentUserAllHosts `
+        -InstallDir $InstallDir `
+        -BinaryName $BinaryName `
+        -CommandName $CommandName
+
+    Write-Step "Done"
+    Write-Host ""
+    Write-Host "Installed: $binaryPath"
+    Write-Host "Open a new PowerShell window, then try:"
+    Write-Host "  $CommandName --help"
+}
+finally {
+    if (Test-Path $tempRoot) {
+        Remove-Item -Path $tempRoot -Recurse -Force -ErrorAction SilentlyContinue
+    }
+}
\ No newline at end of file
diff --git a/scripts/install-synkronus-cli.sh b/scripts/install-synkronus-cli.sh
new file mode 100644
index 000000000..48a9bc859
--- /dev/null
+++ b/scripts/install-synkronus-cli.sh
@@ -0,0 +1,215 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+VERSION="latest"
+OWNER="OpenDataEnsemble"
+REPO="ode"
+ASSET_NAME="synkronus-cli_Darwin_arm64.tar.gz"
+BINARY_NAME="synk"
+COMMAND_NAME="synk"
+INSTALL_DIR="${HOME}/.local/bin"
+ZSH_COMPLETIONS_DIR="${HOME}/.zsh/completions"
+
+usage() {
+  cat <<EOF
+Usage: install-synkronus-cli.sh [options]
+
+Options:
+  --version <tag|latest>    Release tag to install (default: latest)
+  --owner <owner>           GitHub owner/org (default: OpenDataEnsemble)
+  --repo <repo>             GitHub repo (default: ode)
+  --asset <name>            Release asset name (default: synkronus-cli_Darwin_arm64.tar.gz)
+  --install-dir <dir>       Install directory (default: ~/.local/bin)
+  --help                    Show this help
+EOF
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --version)
+      VERSION="$2"
+      shift 2
+      ;;
+    --owner)
+      OWNER="$2"
+      shift 2
+      ;;
+    --repo)
+      REPO="$2"
+      shift 2
+      ;;
+    --asset)
+      ASSET_NAME="$2"
+      shift 2
+      ;;
+    --install-dir)
+      INSTALL_DIR="$2"
+      shift 2
+      ;;
+    --help)
+      usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown argument: $1" >&2
+      usage >&2
+      exit 1
+      ;;
+  esac
+done
+
+step() {
+  echo "==> $1"
+}
+
+need_cmd() {
+  command -v "$1" >/dev/null 2>&1 || {
+    echo "Required command not found: $1" >&2
+    exit 1
+  }
+}
+
+get_download_url() {
+  if [[ "$VERSION" == "latest" ]]; then
+    echo "https://github.com/$OWNER/$REPO/releases/latest/download/$ASSET_NAME"
+  else
+    echo "https://github.com/$OWNER/$REPO/releases/download/$VERSION/$ASSET_NAME"
+  fi
+}
+
+ensure_install_dir_on_path_in_zshrc() {
+  local zshrc="$HOME/.zshrc"
+  local marker_start="# >>> synkronus-cli path >>>"
+  local marker_end="# <<< synkronus-cli path <<<"
+
+  mkdir -p "$(dirname "$zshrc")"
+  touch "$zshrc"
+
+  local block
+  block=$(cat <<EOF
+$marker_start
+if [[ ":\$PATH:" != *":$INSTALL_DIR:"* ]]; then
+  export PATH="$INSTALL_DIR:\$PATH"
+fi
+$marker_end
+EOF
+)
+
+  if grep -Fq "$marker_start" "$zshrc"; then
+    python3 - "$zshrc" "$marker_start" "$marker_end" "$block" <<'PY'
+import re
+import sys
+path, start, end, block = sys.argv[1:]
+with open(path, "r", encoding="utf-8") as f:
+    content = f.read()
+pattern = re.escape(start) + r".*?" + re.escape(end)
+updated = re.sub(pattern, block, content, flags=re.S)
+with open(path, "w", encoding="utf-8") as f:
+    f.write(updated)
+PY
+    echo "Updated PATH block in $zshrc"
+  else
+    {
+      [[ -s "$zshrc" ]] && tail -c 1 "$zshrc" | read -r _ || true
+      echo
+      echo "$block"
+    } >> "$zshrc"
+    echo "Added PATH block to $zshrc"
+  fi
+}
+
+setup_zsh_completion() {
+  local zshrc="$HOME/.zshrc"
+  local completion_file="$ZSH_COMPLETIONS_DIR/_${COMMAND_NAME}"
+  local marker_start="# >>> synkronus-cli completion >>>"
+  local marker_end="# <<< synkronus-cli completion <<<"
+
+  mkdir -p "$ZSH_COMPLETIONS_DIR"
+  touch "$zshrc"
+
+  step "Generating zsh completion"
+  "$INSTALL_DIR/$BINARY_NAME" completion zsh > "$completion_file"
+
+  local block
+  block=$(cat <<EOF
+$marker_start
+fpath=("$ZSH_COMPLETIONS_DIR" \$fpath)
+autoload -Uz compinit
+compinit
+$marker_end
+EOF
+)
+
+  if grep -Fq "$marker_start" "$zshrc"; then
+    python3 - "$zshrc" "$marker_start" "$marker_end" "$block" <<'PY'
+import re
+import sys
+path, start, end, block = sys.argv[1:]
+with open(path, "r", encoding="utf-8") as f:
+    content = f.read()
+pattern = re.escape(start) + r".*?" + re.escape(end)
+updated = re.sub(pattern, block, content, flags=re.S)
+with open(path, "w", encoding="utf-8") as f:
+    f.write(updated)
+PY
+    echo "Updated completion block in $zshrc"
+  else
+    {
+      [[ -s "$zshrc" ]] && tail -c 1 "$zshrc" | read -r _ || true
+      echo
+      echo "$block"
+    } >> "$zshrc"
+    echo "Added completion block to $zshrc"
+  fi
+
+  echo "Installed zsh completion to $completion_file"
+}
+
+need_cmd curl
+need_cmd tar
+need_cmd mktemp
+need_cmd python3
+
+DOWNLOAD_URL="$(get_download_url)"
+TMP_DIR="$(mktemp -d)"
+ARCHIVE_PATH="$TMP_DIR/$ASSET_NAME"
+
+cleanup() {
+  rm -rf "$TMP_DIR"
+}
+trap cleanup EXIT
+
+step "Preparing install directory"
+mkdir -p "$INSTALL_DIR"
+
+step "Downloading $DOWNLOAD_URL"
+curl -fsSL "$DOWNLOAD_URL" -o "$ARCHIVE_PATH"
+
+step "Extracting archive"
+tar -xzf "$ARCHIVE_PATH" -C "$TMP_DIR"
+
+step "Finding executable"
+BIN_PATH="$(find "$TMP_DIR" -type f -name "$BINARY_NAME" | head -n 1 || true)"
+if [[ -z "$BIN_PATH" ]]; then
+  echo "Could not find $BINARY_NAME inside archive $ASSET_NAME" >&2
+  exit 1
+fi
+
+step "Installing $BINARY_NAME to $INSTALL_DIR"
+install -m 0755 "$BIN_PATH" "$INSTALL_DIR/$BINARY_NAME"
+
+step "Updating zsh PATH config"
+ensure_install_dir_on_path_in_zshrc
+
+step "Updating zsh completion config"
+setup_zsh_completion
+
+step "Done"
+echo
+echo "Installed: $INSTALL_DIR/$BINARY_NAME"
+echo
+echo "Open a new terminal, or run:"
+echo "  source ~/.zshrc"
+echo
+echo "Then try:"
+echo "  $COMMAND_NAME --help"
\ No newline at end of file