Here my .ini, I just include Heltec ESP32 in the lib_deps.
[[env:heltec_wifi_lora_32_V3]
platform = espressif32
board = heltec_wifi_lora_32_V3
framework = arduino
lib_deps =
heltecautomation/Heltec ESP32 Dev-Boards @ ^2.1.2
adafruit/Adafruit GFX Library@^1.11.11
adafruit/Adafruit BusIO@^1.17.0
An here the topic I created.
Thanks