proxmark3-web can be run inside Docker for ease of use, it should work on any Docker host, including a Raspberry Pi.
From the directory with the Dockerfile, run:
$ docker build -t proxmark3-web .
This will create a new Docker container with the latest Proxmark3 code as well as this proxmark3-web repository
$ docker run -it --rm --name proxmark \
-p 8080:8080 \
--device=/dev/ttyACM0 \
proxmark3-web
Be sure to pass the Proxmark device to the container, it should be /dev/ttyACM0
on most Linux systems.