mkdir esptool
cd esptool
python3 -m venv
source bin/activate
pip install esptool

Et Zou !

$ esptool.py chip_id
esptool.py v4.8.1
Found 2 serial ports
Serial port /dev/ttyACM1
Connecting....
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting.......
Detecting chip type... ESP32
Chip is ESP32-PICO-D4 (revision v1.0)
Features: WiFi, BT, Dual Core, 240MHz, Embedded Flash, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: 98:cd:ac:f3:d1:e0
Uploading stub...
Running stub...
Stub running...
Warning: ESP32 has no Chip ID. Reading MAC instead.
MAC: 98:cd:ac:f3:d1:e0
Hard resetting via RTS pin...
(esptool) 

https://meshtastic.org/docs/getting-started/flashing-firmware/esp32/cli-script/