Personally, I’d look at using Node-Red.
It has plug-ins for Blynk (which I use) and HomeBridge (which I don’t use).
My set-up for using Blynk with Node-Red doesn’t run any Blynk specific code on my ESP devices, just MQTT to talk to Node-Red. Node-Red talks to Blynk, and with other sytsrems as well (in my case Amazon Alexa, Ikea Tradfri via Node-Red plug-ins and a few other services via API calls).