feat: add native Windows PowerShell installation script and update release workflow to support .zip artifacts

Author: fajarhide

.github/workflows/release.yml

@@ -84,7 +84,7 @@ jobs:
         uses: actions/upload-artifact@v7
         with:
           name: omni-${{ matrix.target }}
-          path: dist/omni-${{ github.ref_name }}-${{ matrix.target }}.tar.gz*
+          path: dist/omni-${{ github.ref_name }}-${{ matrix.target }}.*
 
   release:
     name: Create Release
@@ -101,7 +101,7 @@ jobs:
       - name: Collect release files
         run: |
           mkdir -p release
-          find artifacts -type f \( -name '*.tar.gz' -o -name '*.sha256' \) -exec cp {} release/ \;
+          find artifacts -type f \( -name '*.tar.gz' -o -name '*.zip' -o -name '*.sha256' \) -exec cp {} release/ \;
 
           echo "=== Release files ==="
           ls -la release/
@@ -118,6 +118,7 @@ jobs:
           generate_release_notes: true
           files: |
             release/*.tar.gz
+            release/*.zip
             release/SHA256SUMS
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

INSTALL.md

@@ -14,6 +14,12 @@ brew install fajarhide/tap/omni
 curl -fsSL https://omni.weekndlabs.com/install | sh
 ```
 
+### Via PowerShell (Windows Native)
+
+```powershell
+irm https://raw.githubusercontent.com/fajarhide/omni/main/scripts/install.ps1 | iex
+```
+
 ### From Source
 
 ```bash

README.md

@@ -135,11 +135,16 @@ omni doctor --fix
 omni init --status
 ```
 
-On universal setup 
+On universal setup (macOS / Linux / WSL)
 ```bash 
 curl -fsSL https://omni.weekndlabs.com/install | bash
 ```
 
+On Windows (Native PowerShell)
+```powershell
+irm https://raw.githubusercontent.com/fajarhide/omni/main/scripts/install.ps1 | iex
+```
+
 ## Custom Filters (TOML)
 
 You can define your own distillation rules for custom internal tools:

scripts/install.ps1

@@ -0,0 +1,109 @@
+<#
+.SYNOPSIS
+OMNI - Universal Windows Install Script
+
+.DESCRIPTION
+Installs the latest OMNI binary to $HOME\.local\bin\omni.exe.
+Supports: Windows (x86_64)
+
+.EXAMPLE
+irm https://raw.githubusercontent.com/fajarhide/omni/main/scripts/install.ps1 | iex
+#>
+
+$ErrorActionPreference = "Stop"
+
+$Repo = "fajarhide/omni"
+$InstallDir = if ($env:OMNI_INSTALL_DIR) { $env:OMNI_INSTALL_DIR } else { "$env:USERPROFILE\.local\bin" }
+$Version = if ($env:OMNI_VERSION) { $env:OMNI_VERSION } else { "latest" }
+
+Write-Host ""
+Write-Host "  ┌─────────────────────────────────────┐" -ForegroundColor Cyan
+Write-Host "  │  OMNI Installer                     │" -ForegroundColor Cyan
+Write-Host "  │  Less noise. More signal.           │" -ForegroundColor Cyan
+Write-Host "  └─────────────────────────────────────┘" -ForegroundColor Cyan
+Write-Host ""
+
+# --- Version Resolution ---
+if ($Version -eq "latest") {
+    Write-Host "[omni] Fetching latest version from GitHub..." -ForegroundColor Cyan
+    try {
+        $ReleaseInfo = Invoke-RestMethod -Uri "https://api.github.com/repos/$Repo/releases/latest"
+        $Version = $ReleaseInfo.tag_name
+    } catch {
+        Write-Error "[omni] Failed to fetch latest version from GitHub."
+        exit 1
+    }
+}
+
+$Platform = "x86_64-pc-windows-msvc"
+$TargetUrl = "https://github.com/$Repo/releases/download/$Version/omni-$Version-$Platform.zip"
+$TmpDir = Join-Path $env:TEMP "omni_install_$([guid]::NewGuid().ToString().Substring(0,8))"
+$ZipFile = Join-Path $TmpDir "omni.zip"
+
+Write-Host "[omni] Platform: $Platform" -ForegroundColor Cyan
+Write-Host "[omni] Version:  $Version" -ForegroundColor Cyan
+Write-Host "[omni] Target:   $InstallDir\omni.exe" -ForegroundColor Cyan
+Write-Host ""
+
+# --- Download & Install ---
+if (-not (Test-Path $TmpDir)) {
+    New-Item -ItemType Directory -Force -Path $TmpDir | Out-Null
+}
+
+Write-Host "[omni] Downloading omni $Version for $Platform..." -ForegroundColor Cyan
+try {
+    Invoke-WebRequest -Uri $TargetUrl -OutFile $ZipFile
+} catch {
+    Write-Error "[omni] Download failed. Check if version $Version exists at: $TargetUrl"
+    exit 1
+}
+
+Write-Host "[omni] Extracting archive..." -ForegroundColor Cyan
+Expand-Archive -Path $ZipFile -DestinationPath $TmpDir -Force
+
+if (-not (Test-Path $InstallDir)) {
+    New-Item -ItemType Directory -Force -Path $InstallDir | Out-Null
+}
+
+$ExtractedExe = Join-Path $TmpDir "omni.exe"
+if (-not (Test-Path $ExtractedExe)) {
+    Write-Error "[omni] Extract failed: omni.exe not found in downloaded archive."
+    exit 1
+}
+
+Copy-Item -Path $ExtractedExe -Destination "$InstallDir\omni.exe" -Force
+
+# --- Cleanup ---
+Remove-Item -Path $TmpDir -Recurse -Force | Out-Null
+
+Write-Host ""
+Write-Host "[omni] ✓ OMNI installed to $InstallDir\omni.exe" -ForegroundColor Green
+
+# --- Verify ---
+try {
+    $ExeVersion = & "$InstallDir\omni.exe" version
+    Write-Host "[omni] Verified: $ExeVersion" -ForegroundColor Green
+} catch {
+    Write-Host "[omni] Unable to verify executable easily." -ForegroundColor Yellow
+}
+
+# --- PATH Check ---
+$UserPath = [Environment]::GetEnvironmentVariable("Path", "User")
+if ($UserPath -notmatch [regex]::Escape($InstallDir)) {
+    Write-Host ""
+    Write-Host "[omni] $InstallDir is not in your PATH." -ForegroundColor Yellow
+    Write-Host "[omni] Adding $InstallDir to your User PATH..." -ForegroundColor Cyan
+    
+    $NewPath = "$UserPath;$InstallDir"
+    [Environment]::SetEnvironmentVariable("Path", $NewPath, "User")
+    
+    Write-Host "[omni] ✓ PATH updated successfully." -ForegroundColor Green
+    Write-Host "[omni] IMPORTANT: You must restart your terminal or open a new PowerShell window to use the 'omni' command." -ForegroundColor Yellow
+}
+
+Write-Host ""
+Write-Host "  Next steps:"
+Write-Host "    omni init --hook   # Activate Claude Code hooks"
+Write-Host "    omni doctor        # Verify installation"
+Write-Host "    omni stats         # View savings after first session"
+Write-Host ""