I used Seeed Studio XIAO ESP32C3 and was able to pub/sub.

[yamati-kz]

It's a report, not an issue. algyan/XIAOGYAN#55

Seeed Studio XIAO ESP32C3.
Ubuntu 20.04.6 (JetPack 5.1.1, Nvidia Jetson Xavier NX Developer Kit)

Pub/sub worked directly between two Seeed Studio XIAO ESP32C3s.
Pub/Sub worked directly with Seeed Studio XIAO ESP32C3 and ESP32-DevKitC-32D.

The target when building ESP32-DevKitC-32D is esp32.
I installed CH340 driver. to use ESP32-DevKitC-32D with Nvidia jetpack5.1.

[takasehideki]

@yamati-kz thank you so much for your fantastic report!
I added this board as the supported environment by eb64170 🎉
(this branch will be merged to main soon, I promise)

[yamati-kz]

This is the verification result.

algyan/XIAOGYAN#55