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Nuvyntra Labs

A component library, and a whole ecosystem, for .NET MAUI

A component library. A whole ecosystem.

We research hard mobile problems, prove them in public, and ship the reusable pieces as independently versioned .NET MAUI products. Use one NuGet in an existing host, or start a new app on the full Nuvyntra stack. Neither path is a fallback.

Browse componentsStart with NuvynGetting startedRead the white paperPlaygroundJoin the community

Nuvyntra Labs is independently maintained. Sponsorship helps keep the organization, packages, and research in good order — thank you for considering it.

R&D projects
8
POCs
6
NuGet packages
53

Built for .NET MAUI teams on Android, iOS, Mac Catalyst, and Windows

Two ways to start

You choose. Neither path is a fallback.

Use Nuvyntra Labs as a component library in the app you already have, or as a whole ecosystem for a new MAUI host. The packages are the same either way.

Getting started

Spec-driven CLI

Nuvyn

The whole-ecosystem door: spec-driven CLI for .NET MAUI apps on the Nuvyntra stack

Nuvyn overview

NuvyntraLabs.Nuvyn.Cli · 1.2.0New

Spec-driven MAUI, locked to the Nuvyntra stack

Nuvyn is a standalone PackAsTool CLI. It depends only on System.CommandLine and Spectre.Console. nuvyn init copies an embedded three-project host, adds the default Nuvyntra packages from nuget.org, writes .nuvyn/ standing law, and installs slash commands for the Spec Kit coding-agent set — Cursor, GitHub Copilot, Claude Code, Gemini CLI, Codex, Windsurf, and 30+ more. nuvyn adopt attaches that slash chain to an existing MAUI app and writes .nuvyn/, skills, and adopt-report.md only — it does not change host architecture, UI kit, or HTTP. init never overlays an existing folder. init / adopt / check compose maui-dev doctor --path when MauiDev is on PATH. On an interactive terminal it asks every 4 hours whether to update from nuget.org.

dotnet tool install -g NuvyntraLabs.Nuvyn.Cli --source https://api.nuget.org/v3/index.json
nuvyn init ClinicApp --agent cursor

Technical docs

What SDD is, and why agents need it

Spec-driven development, agentic coding, and how the PackAsTool CLI, payload host, and slash chain are built.

User guide

Install, init, grow the app

New folder only. Pick a Spec Kit agent (Cursor, Copilot, Claude, Gemini, Codex, Windsurf, …). Then run constitution → specify → plan → implement.

White paper

Three pillars, then the gallery

UIKit paints screens. MVVMExpress hosts the app. HttpForge talks to the API. The catalog fills in local data, network truth, security, and operations — adopt only what the product needs.

Read the white paper

Embedded database

NuvexaDB

Embedded NoSQL database — one engine, one .nvx file, many hosts

NuvexaDB docs

Nuventra.NuvexaDB · 1.0.7

One engine, one .nvx file

NuvexaDB is a standalone embedded NoSQL engine: collections, NQL (Nuvexa Query Language), optional AES-256-GCM, one .nvx application file, and an IDE. It runs in-process. It is not a network server. .NET and MAUI call the managed engine directly; every other language loads a Native AOT build of that same engine through nuvexa.h (ABI v2). A file written from Kotlin is the same file Data Studio, a MAUI app, and a Swift host open.

White paper, NQL, and integration guides for every supported host

Getting started

Ten platform guides

.NET / MAUI, Java, Kotlin, Android, Swift, Flutter, React Native, Python, Node.js, Go, and C++. Each guide names the Release zip, empty project, CRUD, and encryption password.

Plugin.Maui.LocalStore · 1.1.0

Room-style MAUI local store

Host picks SQLite, NuvexaDB, Realm, LiteDB, or another shipped engine. Application code stays on the same ILocalStore / IStoreCollection methods. 1.1 adds AutoMigrate, QueryAsync, and generated [StoreDao] interfaces.

Message broker

NuvexaMQ

Durable message broker — one append-only log, queues, exchanges, and replayable streams

NuvexaMQ docs

Broker · 0.1.1

One log, three ways to read it

NuvexaMQ 0.1.1 stores every message in one append-only log. A queue, a pub/sub fan-out, and a replayable stream are three ways to read that log. An acknowledged publish is on disk. The installer ships the broker and the desktop app for Windows, macOS, and Linux. Applications open TCP 5761 and exchange NuvexaMQ frames. The server, engine, and protocol projects are not NuGet packages.

Installer, management console, and client samples

Documentation

Full broker manuals

Technical reference, admin panel, client integration, language samples, and the localhost benchmark. Data port 5761. Console at http://127.0.0.1:5763/.

Lumina UI library

UIKit(MAUI)

Lumina UI kit — NV* controls and page recipes for .NET MAUI

UIKit(MAUI) docs

NuvyntraLabs.UIKit · 1.6.0

201 NV* controls, 66 page recipes

NuvyntraLabs.UIKit 1.6.0 is the Lumina catalog for a typical MAUI app: foundation tokens, 201 NV* controls from primitives through advanced and Next chrome, and 66 NV*View page recipes. Register with UseNuvyntraUIKit(), then use xmlns nv. 1.6.0 is a Lumina look refresh — lifted fills, hairline, glow, recessed fields — plus NVChrome paint recipes and derived tokens. Hosts that pin 1.5.x keep compiling. 1.5.0 renamed NVEmailField to NVInputField. 1.5.1 added type scale, RTL flow, contrast-safe ink, and Escape / Ctrl+K overlay shortcuts. Kit-level APIs stay a working Lumina surface — not Telerik or Syncfusion parity. PDF, Docx, and Spreadsheet are viewers. NVBarcode generates; it does not scan. Compose FormValidation, KeyboardManager, and MVVMExpress at the host. This library does not PackageReference Plugin.Maui.*.

Register with UseNuvyntraUIKit(), then use xmlns nv

Host composition

Paint with UIKit, host with MVVMExpress

The kit does not PackageReference Plugin.Maui.*. Compose MVVMExpress, FormValidation, and KeyboardManager in the app.

.NET libraries

ApiLens

Why an ASP.NET Core request was slow or failed

ApiLens docs

NuvyntraLabs.NET.ApiLens · 0.1.0

One request, explained

ApiLens stores a timeline for each MVC or minimal API request, attributes overlapping work as a share of wall-clock time, and flags a repeated SQL shape as a possible N+1. The dashboard is served only in Development. SQL parameter values, request bodies, response bodies, and HTTP query strings are never stored.

Development dashboard at /_apilens

Getting started

ASP.NET Core, EF Core, HttpClient

Register AddApiLens, the EF Core probe, and the HTTP probe. The timeline attributes overlapping work once. SQL parameter values and request bodies are never stored.

How we work

Research, prove, then publish

Every product starts as a field problem. We document the research, prove the pattern in public, and ship only what is reusable.

01

Research

8 studies

Longer investigations: inspection products, VoIP stacks, GPS accuracy, and platform bindings.

02

Prove

6 prototypes

Public proofs and maintained forks — short enough to evaluate, complete enough to reuse.

03

Ship

53 on GitHub Packages

Focused .NET MAUI plugins. Install only the package that matches the requirement.

Component library

Infrastructure mobile apps actually need

Product teams who want one focused NuGet in an existing MAUI app, and teams who want a new host on the Nuvyntra stack — plus people evaluating longer research in inspection, VoIP, and field accuracy.

  • Location & field

    On-demand fixes, tracking sessions, reverse geocoding, circular geofences, and trip-meter accuracy research.

  • Connectivity

    Real internet checks, captive portals, layered diagnostics, and HttpClient TLS / SPKI pinning.

  • Offline & sync

    Background jobs, durable queues, retries, chunked uploads, and offline-first pipelines.

  • Voice

    VoIP session models, CallKit research, SIP/WebRTC stacks, and platform bindings.

  • Security & identity

    Secure storage, sessions, app lock, one-shot biometric, screenshot guard, device identity, and permission-aware device APIs.

  • Device & UX

    NFC, BLE, classic Bluetooth serial, printing, clipboard, video pipeline, keep-awake, deep links, feature flags, and form validation.

Nuvyntra Labs — Applied R&D

Join our community

Welcome to Nuvyntra Labs

A developer-focused community dedicated to building, sharing, and supporting open-source tools, libraries, and solutions.

Connect with fellow developers, explore our open-source projects, share ideas, get technical help, and collaborate with the community.

Build. Share. Learn. Collaborate.

Component library

Focused MAUI plugins

60 catalog entries, 53 published on GitHub Packages. Install one package. Compose only what the app needs.

Full catalog

Whole ecosystem

Start the host, then diagnose

Nuvyn scaffolds a spec-driven MAUI app on the Nuvyntra stack. MauiDev 1.2.2 then doctors the machine and the project. NuvLoc 1.1.2 diffs sibling .resx files and lets your coding agent write the cultures. Plugins and UIKit stay installable without these tools.

All toolkits

Research

Investigations that become products

Inspection, calling, GPS accuracy, and Xamarin bindings — documented as research, not flattened into a plugin list.

All research

Proofs of concept

Public proofs, then packages

Short prototypes and maintained forks. Evaluate the idea here; adopt the NuGet package when the pattern is reusable.

All POCs

Next step

Build with Nuvyntra Labs

Use the component library in an existing app, or start a new host with Nuvyn. Same packages either way.

Browse componentsStart with NuvynContact the lab