hey there,
first of all, I’m very inexperienced with compiling software for OpenWRT, so bear with me.
What I’ve done:
Installing a fresh VM with Debian 10 and downloaded the OpenWRT SDK to it and configured it via make menuconfig to only build packages for the Omnia (target-arm_cortex-a9+vfpv3-d16_musl_eabi)
downloaded the mitmproxy source from github to the directory /package/mitmproxy
But I’m not really sure, what to be done next, I suppose there should be a Makefile in the source code folder of mitmproxy?