Programming ESP32 microcontroller using ESP-IDF with Wi-Fi, NTP sync, TM1637 display, DS3231 fallback timer, SHT3X environmental sensor, outside weather from API, HW-072 light sensor and OTA Wi-Fi updates.
Why do you think that https://github.com/ESP32-Musings/esp32_compressed_delta_ota_update is a good alternative to clocks