ESP32-based Precision Wattmeter

I was looking for something to build with an ESP32 microcontroller and a little bit of analog electronics twist for fun. I came up with the idea to build a digital watt-meter, like one of those cheap RC hobby ones, but with three improvements - 1. High precision (and accuracy), 2. Datalogging, 3. WiFi connectivity so that multiple of these devices can talk together and calculate efficiency of power supplies.
That means if you hook up one of these at the input and the output of your DC-DC converter and have them connected to the same WiFi network, you will have live feed of efficiency and be able to log the data over time without any manual fiddling in spreadsheet softwares.

For precision measurement, I have chosen the ADS1256 24-bit op amp and paired it with B grade ADR4525 voltage reference. Voltage divider and current shunt resistors are low ppm as well (10 and 20ppm/C respectively). Right now I have a complete schematic and PCB design waiting for a education sponsorship from a PCB manufacturing company. I wish to share all the resources publicly and hopefully turn it into a community project where more people join in and help improve the design.