Manage Zephyr devices via LwM2M

flownexus combines a Leshan LwM2M server, a Django backend, and a Tabler UI into a local-first platform for data, firmware rollouts, device operations, and multi-site access control.

Runs on a single core VPS Developer Friendly, simulate everything locally Firmware OTA Updates
flownexus dashboard showing telemetry cards, device overview, and charts
Zephyr Works with Zephyr targets, simulations, and example firmware
LwM2M Built around device-native management and observation flows
SQL DB SQL Database that is accessed through ORM for simplicity
Django Stores telemetry, powers APIs, and provides the web interface
Capabilities

An Open Source IoT Server that focuses on user experience and iteration speed!

flownexus focuses on the real work of device operations: observing resources, writing configuration, tracking firmware updates, visualizing events, and keeping site-level access under control.

Build on your own machine

Build and simulate the whole stack on a single machine allows for fast iteration.

Mock Sensors Simulate devices on Zephyr native_sim Co-Develop Firmware and Server infrastructure!

Firmware delivery with tracked state

Manage OTA updates through the LwM2M firmware object, follow each device through download and update states, and keep rollout results visible in the database.

Package URI based HTTP(S) pull updates Result and state tracking per endpoint Mock simulation support for fast verification

Direct device operations

Use LwM2M-centric interactions to write resources, observe changes, and queue endpoint operations without inventing a parallel control plane.

Write and observe workflows rooted in the protocol Queued operations with explicit status tracking Certificate-based authentication and encryption

Multi-site access control

Segment devices into sites, assign users by role, and give operators only the firmware, device, and administrative permissions they actually need.

Site user, site admin, and global admin roles Scoped access to device data and operations Designed for practical single-deployment teams