https://nuvyntralabs.github.io/ Independent applied R&D company for mobile infrastructure. We research hard field problems, prove them in public, and ship focused .NET MAUI NuGet packages. en https://nuvyntralabs.github.io/packages/maui-essentials/ https://nuvyntralabs.github.io/packages/maui-essentials/ package A curated catalog of Android/iOS .NET MAUI plugins — each in its own repository, referenced as git submodules — covering location, networking, sync, security, BLE, NFC, printing, VoIP, and observability. https://nuvyntralabs.github.io/packages/plugin-maui-geolocator/ https://nuvyntralabs.github.io/packages/plugin-maui-geolocator/ package A .NET MAUI location plugin for Android and iOS covering single fixes, continuous tracking, and reverse geocoding for field and mapping apps. https://nuvyntralabs.github.io/packages/plugin-maui-network-monitor/ https://nuvyntralabs.github.io/packages/plugin-maui-network-monitor/ package Reports validated public internet, captive portals, offline and local-only states, and Wi-Fi versus cellular transitions on Android and iOS. https://nuvyntralabs.github.io/packages/plugin-maui-background-tasks/ https://nuvyntralabs.github.io/packages/plugin-maui-background-tasks/ package Schedules one-time and periodic background work on Android JobScheduler and iOS BGTaskScheduler from a shared MAUI API. https://nuvyntralabs.github.io/packages/plugin-maui-job-queue/ https://nuvyntralabs.github.io/packages/plugin-maui-job-queue/ package A durable in-app job queue backed by SQLite, with named queues, retry/backoff, network constraints, and a dead-letter path. https://nuvyntralabs.github.io/packages/plugin-maui-smart-upload/ https://nuvyntralabs.github.io/packages/plugin-maui-smart-upload/ package Chunked, resumable file uploads for MAUI with retry and recovery after the process is killed mid-transfer. https://nuvyntralabs.github.io/packages/plugin-maui-device-session/ https://nuvyntralabs.github.io/packages/plugin-maui-device-session/ package Stable device, installation, and analytics session identifiers for MAUI apps — the identity layer other plugins can attach to telemetry. https://nuvyntralabs.github.io/packages/plugin-maui-offline-sync/ https://nuvyntralabs.github.io/packages/plugin-maui-offline-sync/ package Offline-first local writes, a queued sync engine, and conflict resolution for MAUI apps that must work without a network. https://nuvyntralabs.github.io/packages/plugin-maui-push-router/ https://nuvyntralabs.github.io/packages/plugin-maui-push-router/ package Parses FCM and APNs payloads and routes them to handlers or Shell pages, including cold-start taps and duplicate-message dedupe. https://nuvyntralabs.github.io/packages/plugin-maui-permission-flow/ https://nuvyntralabs.github.io/packages/plugin-maui-permission-flow/ package Declares named permission flows with in-app rationale, one-at-a-time requests, denial cooldown, and Settings fallback when the OS will not prompt again. https://nuvyntralabs.github.io/packages/plugin-maui-app-health/ https://nuvyntralabs.github.io/packages/plugin-maui-app-health/ package Collects app, device, and environment health signals so support and observability layers can see why a session failed. https://nuvyntralabs.github.io/packages/plugin-maui-secure-storage-plus/ https://nuvyntralabs.github.io/packages/plugin-maui-secure-storage-plus/ package An extra AES-256-GCM layer over MAUI SecureStorage, with integrity tags, expiry, key listing, typed JSON, and migration from legacy stores. https://nuvyntralabs.github.io/packages/plugin-maui-secure-session/ https://nuvyntralabs.github.io/packages/plugin-maui-secure-session/ package Session ownership for MAUI: login, refresh, expiry, logout, multi-device revoke, and biometric unlock — tokens persist in SecureStoragePlus. https://nuvyntralabs.github.io/packages/plugin-maui-api-resilience/ https://nuvyntralabs.github.io/packages/plugin-maui-api-resilience/ package Resilient HttpClient policies for MAUI: retry, circuit breaker, offline queue, and cooperation with token refresh. https://nuvyntralabs.github.io/packages/plugin-maui-file-vault/ https://nuvyntralabs.github.io/packages/plugin-maui-file-vault/ package Encrypted on-device file storage with key protection and lifecycle controls — the vault target for MediaPipeline and sensitive documents. https://nuvyntralabs.github.io/packages/plugin-maui-media-pipeline/ https://nuvyntralabs.github.io/packages/plugin-maui-media-pipeline/ package A fluent pipeline: camera or gallery → resize, compress, strip EXIF, correct orientation, watermark, blur/redact, encrypt → FileVault or SmartUpload. https://nuvyntralabs.github.io/packages/plugin-maui-voip-core/ https://nuvyntralabs.github.io/packages/plugin-maui-voip-core/ package A SIP/VoIP session model for MAUI with a pluggable signaling stack — the shared core for call state, not a single vendor SDK wrapper. https://nuvyntralabs.github.io/packages/plugin-maui-feature-flags/ https://nuvyntralabs.github.io/packages/plugin-maui-feature-flags/ package Feature flags for MAUI with mobile targeting and remote config, so rollouts and experiments are not hardcoded builds. https://nuvyntralabs.github.io/packages/plugin-maui-deep-links/ https://nuvyntralabs.github.io/packages/plugin-maui-deep-links/ package Handles Android App Links, iOS Universal Links, custom URL schemes, and auth-restore flows in one MAUI plugin. https://nuvyntralabs.github.io/packages/plugin-maui-performance/ https://nuvyntralabs.github.io/packages/plugin-maui-performance/ package A lightweight MAUI profiler that times startup, page loads, API calls, image loading, SQLite, and memory so regressions are visible on device. https://nuvyntralabs.github.io/packages/plugin-maui-diagnostics/ https://nuvyntralabs.github.io/packages/plugin-maui-diagnostics/ package Captures crashes, ANRs, unhandled exceptions, and pre-crash breadcrumbs so mobile failures are diagnosable after the fact. https://nuvyntralabs.github.io/packages/plugin-maui-observability/ https://nuvyntralabs.github.io/packages/plugin-maui-observability/ package One registration fans health, network, API, upload, sync, background, device, and crash events into a single export path. https://nuvyntralabs.github.io/packages/plugin-maui-app-update/ https://nuvyntralabs.github.io/packages/plugin-maui-app-update/ package Google Play In-App Updates, App Store version checks, mandatory or recommended prompts, and maintenance-mode messaging. https://nuvyntralabs.github.io/packages/plugin-maui-network-diagnostics/ https://nuvyntralabs.github.io/packages/plugin-maui-network-diagnostics/ package On-demand connectivity diagnostics for MAUI. NetworkMonitor watches the path; this plugin runs a layered probe so support can see where production connectivity broke. https://nuvyntralabs.github.io/packages/plugin-maui-retry-queue/ https://nuvyntralabs.github.io/packages/plugin-maui-retry-queue/ package A failed-operation retry queue for MAUI — telemetry, orders, forms, and payments that must keep trying after a 503, timeout, or process death. Not JobQueue. https://nuvyntralabs.github.io/packages/plugin-maui-api-cache/ https://nuvyntralabs.github.io/packages/plugin-maui-api-cache/ package Lightweight HTTP/API response cache for MAUI. ApiResilience retries; this package remembers GET responses so screens stay fast offline and on flaky networks. https://nuvyntralabs.github.io/packages/plugin-maui-bluetooth-manager/ https://nuvyntralabs.github.io/packages/plugin-maui-bluetooth-manager/ package A high-level BLE device connection manager for MAUI — permissions, scan, connect, retry, RSSI, notify, and reconnect. Not another low-level GATT library. https://nuvyntralabs.github.io/packages/plugin-maui-share-plus/ https://nuvyntralabs.github.io/packages/plugin-maui-share-plus/ package Share for MAUI that goes beyond the generic sheet: title, subject, MIME, preview, target app, and temporary-file handling for WhatsApp, Email, Messages, Files, Nearby Share, and AirDrop. https://nuvyntralabs.github.io/packages/plugin-maui-clipboard-plus/ https://nuvyntralabs.github.io/packages/plugin-maui-clipboard-plus/ package Clipboard for MAUI that is more useful than MAUI Clipboard: sensitive text, automatic expiry, presence flags, and ContentChanged — including keeping secrets off Universal Clipboard on iOS. https://nuvyntralabs.github.io/packages/plugin-maui-device-info-plus/ https://nuvyntralabs.github.io/packages/plugin-maui-device-info-plus/ package Application and device fingerprint plus hardware capabilities for MAUI — screen, RAM, NFC, Bluetooth, camera, biometric, GPS, and flash — for telemetry, support tickets, and feature targeting. https://nuvyntralabs.github.io/packages/plugin-maui-nfc-plus/ https://nuvyntralabs.github.io/packages/plugin-maui-nfc-plus/ package Session-based NFC for MAUI: NDEF, tag IDs, read/write, foreground dispatch / reader sessions, and availability — for retail, attendance, assets, and vehicle apps. https://nuvyntralabs.github.io/packages/plugin-maui-app-lock/ https://nuvyntralabs.github.io/packages/plugin-maui-app-lock/ package Application-security workflow for MAUI: lock timer, lifecycle, and gate. Face ID, Touch ID, fingerprint, and device PIN are how the user unlocks — they are not the product. https://nuvyntralabs.github.io/packages/plugin-maui-printing/ https://nuvyntralabs.github.io/packages/plugin-maui-printing/ package Print for MAUI: PDF, images, text, system / AirPrint, Bluetooth, and ESC/POS thermal printers — invoices, receipts, labels, tickets, and inspection reports. https://nuvyntralabs.github.io/packages/plugin-maui-device-orientation-plus/ https://nuvyntralabs.github.io/packages/plugin-maui-device-orientation-plus/ package Lock, unlock, and listen for screen orientation in MAUI. DeviceDisplay orientation is read-only; this package is the missing write path for video, scanning, POS, and inspection. https://nuvyntralabs.github.io/packages/plugin-maui-keyboard-manager/ https://nuvyntralabs.github.io/packages/plugin-maui-keyboard-manager/ package Soft-keyboard control for MAUI: hide, show, dismiss-on-tap, resize/pan/safe-area avoidance, visibility, height, and focus — without platform #if on every page. https://nuvyntralabs.github.io/packages/plugin-maui-form-validation/ https://nuvyntralabs.github.io/packages/plugin-maui-form-validation/ package Mobile-first validation for MAUI: fluent rules on the view-model (required, email, phone, URL, min/max) and a XAML Validation.For attached property. https://nuvyntralabs.github.io/research/assure-cars/ https://nuvyntralabs.github.io/research/assure-cars/ research A self-hosted, single-tenant platform for SMB dealers: branded website and apps, 200-point inspection reports, leads, and concurrent-slot test-drive booking. Not a marketplace. https://nuvyntralabs.github.io/research/vehicle-inspection-kotlin/ https://nuvyntralabs.github.io/research/vehicle-inspection-kotlin/ research Kotlin + Jetpack Compose Android app: configurable checklist, VIN OCR, Gemini/manual damage marking, and branded PDF + JSON reports. Offline-first; Firebase and AI are optional. https://nuvyntralabs.github.io/research/online-conference/ https://nuvyntralabs.github.io/research/online-conference/ research A Flutter, Android-first 1:1 video app: host creates a meeting, guest joins with an invite code. Built with GitHub Spec Kit. Signed APK and demo video included. https://nuvyntralabs.github.io/research/vobiz-voip-call/ https://nuvyntralabs.github.io/research/vobiz-voip-call/ research Android 12+ Jetpack Compose softphone for inbound and outbound PSTN via Vobiz: SIP over secure WebSocket, WebRTC audio, recents/keypad UI, and a TypeScript Answer URL / FCM backend. https://nuvyntralabs.github.io/research/gps-sensor-tracking-service/ https://nuvyntralabs.github.io/research/gps-sensor-tracking-service/ research A Kotlin Android study that computes distance travelled from filtered GPS fixes and the Haversine formula — no map or Directions API. Road-tested at 97% versus a vehicle trip meter. https://nuvyntralabs.github.io/research/location-tracking-jobscheduler/ https://nuvyntralabs.github.io/research/location-tracking-jobscheduler/ research A Xamarin.Android project that uses JobScheduler for periodic location tracking — an earlier native-Android approach to the same field-tracking problem later explored in Kotlin and MAUI. https://nuvyntralabs.github.io/research/twilio-voice-android-xamarin-binding/ https://nuvyntralabs.github.io/research/twilio-voice-android-xamarin-binding/ research A Xamarin Android binding library for the Twilio Voice SDK, used to bring programmable voice into Xamarin and early cross-platform calling apps. https://nuvyntralabs.github.io/research/twilio-voice-ios-xamarin-binding/ https://nuvyntralabs.github.io/research/twilio-voice-ios-xamarin-binding/ research A Xamarin iOS binding library for the Twilio Voice SDK, complementary to the Android binding and CallKit sample work. https://nuvyntralabs.github.io/pocs/solar-sales-automation/ https://nuvyntralabs.github.io/pocs/solar-sales-automation/ poc Static HTML prototype of a connected manager portal, quotation/BOQ module, and sales-rep mobile app — assignment, SLAs, site surveys, proposals, and conversion. Live on Netlify. https://nuvyntralabs.github.io/pocs/bluetooth-mic-recording/ https://nuvyntralabs.github.io/pocs/bluetooth-mic-recording/ poc A .NET MAUI proof of concept: multi-hour microphone recording from a Bluetooth headset, kept alive by a foreground service, notification actions, and a battery-optimization exemption. https://nuvyntralabs.github.io/pocs/file-processor-test/ https://nuvyntralabs.github.io/pocs/file-processor-test/ poc A public C# harness for exercising file-processing pipelines — a sandbox for batch, transform, and validation logic before it lands in product code. https://nuvyntralabs.github.io/pocs/callkit-sample/ https://nuvyntralabs.github.io/pocs/callkit-sample/ poc A public fork of a Xamarin CallKit sample wired with PushKit and Twilio VoIP — system call UI for incoming voice on iOS. https://nuvyntralabs.github.io/pocs/html-label-plugin/ https://nuvyntralabs.github.io/pocs/html-label-plugin/ poc A fork of the Xamarin.Forms HtmlLabel plugin — display HTML content in a label when a full WebView is too heavy. https://nuvyntralabs.github.io/pocs/plugin-firebase-analytics/ https://nuvyntralabs.github.io/pocs/plugin-firebase-analytics/ poc A public fork of Plugin.FirebaseAnalytics for wiring Firebase Analytics events from Xamarin and related .NET mobile apps.