How to support espidf esps3?

[zghnx]

How to support espidf esps3?

[smersh1307n2]

Hi @zghnx,

Porting the full libzt to ESP-IDF is very difficult. It expects a full POSIX environment and includes a heavy virtual Ethernet stack that quickly eats up all the RAM on the ESP32.

If you just need secure P2P communication through NAT for IoT (like sending telemetry, sensor data, or relay commands) without needing a full virtual IP network on the device, you should check out ZtLiteESP:
👉 https://github.com/smersh1307n2/ZtLiteESP

Why it's much better for ESP32:

• VL1-only: It skips the heavy virtual network/TAP layer and uses ZeroTier's native USER_MESSAGE for direct, secure peer-to-peer messaging.
• Lightweight: Designed specifically for ESP-IDF and FreeRTOS. Uses minimal RAM and Flash.
• Smart Crypto: ZeroTier identity is generated offline on your PC before flashing, so the MCU doesn't waste resources on heavy math at boot.

⚠️ Quick heads-up: Please note that this is currently an early-stage experiment / proof-of-concept. It's not a fully finished, production-ready SDK yet. However, it's an excellent foundation and a great starting point if you want to build lightweight IoT P2P messaging.

There is a detailed article explaining the architecture and ESP32 integration here:
https://dev.to/andrey_asx_6a2421d07b6d62/zerotier-without-native-managed-ztsharp-and-native-vl1-only-ztlite-for-esp32-3dmg

If you strictly need a full virtual IP stack on the ESP32 itself, libzt will require massive custom POSIX wrappers. But for simple IoT use cases, ZtLiteESP is a great lightweight alternative to explore!