Hello Riccardo
I read your feature list for cross platform proxy service you require
I will provide you transparent proxy application that works both on windows and Linux, it provides you socks5 or http proxy on a desired port, we add reverse proxy feature to it so all traffic are able to redirected to an upstream proxy and a virtual adapter or interface with support of all authentication type including username/password.
These application will be build on docker environment so whatever platform you use, it's completely portable specially on windows and linux.
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[ + ] Check our recent works on proxy scripting, reverse proxy, socks, http, Squid, 3proxy and so on:
https://www.freelancer.com/projects/linux/Use-Squid-Route-Proxies-Dashboard
https://www.freelancer.com/projects/bash-scripting/reseller-residential-proxies
https://www.freelancer.com/projects/nodejs/NodeJS-TCP-Server-25049714
https://www.freelancer.com/projects/linux/Write-Centos-server-configuration-script
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* I'm a Senior Backend-Developer and DevOps Engineer with over 15+ years of Experience in scripting and programming such as :
# PHP # Node.js # Perl # Python # BASH Script and so on...
Let's Discuss - READY TO START NOW!
Regards
Archill