This post has a glitch when you hit this instruction in step-by-step execution from scratch:

pipx install mitmproxy
Results in the following error:

Fatal error from pip prevented installation. Full pip output in file:
/home/pi/.local/pipx/logs/cmd_2022-11-13_17.01.13_pip_errors.log

pip seemed to fail to build package:
mitmproxy-wireguard<0.2,>=0.1.6

inspecting the log file, you see it's looking for Rust/Cargo to be installed. If you go and install the default rust install via: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

It still doesn't work, unfortunately.

This seems to be related to: https://github.com/mitmprox...

I keep getting the message "No subnet declaration for wlan0 (no IPv4 addresses) when starting the isc-dhcp-server. But did put the IP address and netmask /etc/dhcp/dhcpd.conf and I assigned a IP address to wlan0 as you described.

wlan0 is down BTW (ip addr show) and can't get it up, but the GUI displays the Visible networks.

Can you give me some directions to look into?

i have install mitmproxy and squid server in the raspbbery,the raspberry proxy is used from another network. can i intercept the traffic on the proxy channel?
Regards