multi-blynk
There are 2 repositories under multi-blynk topic.
khoih-prog/Blynk_WM
Blynk and WiFiManager Library for configuring/auto(re)connecting ESP8266/ESP32 modules to the best or available MultiWiFi APs and MultiBlynk servers at runtime, with or without SSL. Configuration data saved in either SPIFFS or EEPROM.
khoih-prog/Blynk_WiFiNINA_WM
Simple WiFiNINA Manager for Blynk and AVR, UNO WiFi Rev2, SAMD, SAM DUE, STM32, Teensy, RP2040-based boards, with or without SSL, configuration data saved in EEPROM, FlashStorage_SAMD,FlashStorage_STM32 or LittleFS.