It almost seems like a joke, php-baremetal that brings php to microcontrollers with the new sdk that will be released soon it will be possible to emulate it on the web,

We are working with solutions that allow us to emulate microcontrollers online and the first tests are fantastic.

to give you an example today it is already compatible with the official emulator of espressif https://espressif.github.io/esp-emulator/

in this case the firmware is executed bit by bit as normal firmware made for esp32

Funny how you go back to origins, right?

EDIT 1 :

I'm adding this sentence (which is an answer I gave to a user here) because I think you're not understanding what exactly it is

I'm not emulating php, I'm compiling php for esp32 which is a microcontroller like arduino so without operating system and I run it on the board, what I'm emulating is taking the firmware for the board and using an online emulator to emulate the board and it behaves exactly as expected