Initial commit: NexusOS - local AI assistant platform

launch_nexus.ps1

@@ -0,0 +1,68 @@
+# NexusOS launcher for Windows (native, no WSL, no Vite).
+#
+# Single-process app: the backend on :8000 serves the built web UI itself, so
+# this starts only the memory service + backend, then opens the UI as an Edge
+# app window. The AI (Ollama) does NOT auto-start - turn it on from the UI's
+# Start AI button. Closing the app window stops the services.
+#
+#   Right-click -> Run with PowerShell   (or:  powershell -File launch_nexus.ps1)
+
+$ErrorActionPreference = "Stop"
+$Root = $PSScriptRoot
+$Py = Join-Path $Root "Promethean\Scripts\python.exe"
+if (-not (Test-Path $Py)) { $Py = "python" }  # fall back to PATH
+
+$Runtime = Join-Path $Root "runtime"
+$Logs = Join-Path $Runtime "logs"
+New-Item -ItemType Directory -Force -Path $Runtime, $Logs | Out-Null
+
+function Start-Svc($log, $argList) {
+    return Start-Process -FilePath $Py -ArgumentList $argList `
+        -WorkingDirectory $Root -WindowStyle Hidden -PassThru `
+        -RedirectStandardOutput $log -RedirectStandardError "$log.err"
+}
+
+Write-Host "Starting NexusOS..." -ForegroundColor Cyan
+# Only start a service if its port is free. If it's already listening (a prior
+# launch, or started by hand) reuse it instead of spawning a duplicate that
+# fails to bind and stalls the readiness wait below.
+$memory = $null
+if (-not (Get-NetTCPConnection -LocalPort 8001 -State Listen -ErrorAction SilentlyContinue)) {
+    $memory = Start-Svc (Join-Path $Runtime "memory.log")  @("-m","uvicorn","synapse.memory.service:app","--host","127.0.0.1","--port","8001")
+}
+$backend = $null
+if (-not (Get-NetTCPConnection -LocalPort 8000 -State Listen -ErrorAction SilentlyContinue)) {
+    $backend = Start-Svc (Join-Path $Runtime "backend.log") @("-m","uvicorn","synapse.main:sio_app","--host","127.0.0.1","--port","8000")
+}
+
+# Wait for the backend to answer on :8000.
+$ok = $false
+foreach ($i in 1..30) {
+    try {
+        Invoke-WebRequest -UseBasicParsing -Uri "http://localhost:8000/status" -TimeoutSec 2 | Out-Null
+        $ok = $true; break
+    } catch { Start-Sleep -Seconds 1 }
+}
+if (-not $ok) {
+    Write-Host "Backend did not come up - check runtime\backend.log" -ForegroundColor Red
+}
+
+# Open the UI in a native window (pywebview / WebView2) - no browser, no Edge
+# profile cold-start. bin\nexus_window.py blocks until the window is closed and
+# falls back to the default browser if WebView2 is unavailable.
+$app = Start-Process -FilePath $Py -ArgumentList @((Join-Path $Root "bin\nexus_window.py")) `
+    -WorkingDirectory $Root -PassThru
+
+Write-Host "NexusOS is running at http://localhost:8000  (AI is off - start it in the UI)" -ForegroundColor Green
+# Block until the app window (or a service we started) exits, so this process
+# stays alive to hold and later stop the services. No blind Read-Host: the
+# shortcut runs hidden, where a prompt no one can answer would hang forever.
+if ($app) { $app.WaitForExit() }
+elseif ($backend) { $backend.WaitForExit() }
+elseif ($memory) { $memory.WaitForExit() }
+
+# Shut the services down.
+Write-Host "Stopping NexusOS..." -ForegroundColor Cyan
+foreach ($p in @($backend, $memory)) {
+    if ($p -and -not $p.HasExited) { Stop-Process -Id $p.Id -Force -ErrorAction SilentlyContinue }
+}