Looks like the core of this is done via https://developer.apple.com/documentation/networkextension https://developer.apple.com/documentation/networkextension s

Looks like the core of this is done via https://developer.apple.com/documentation/networkextension https://developer.apple.com/documentation/networkextension some cool stuff here: - Content Filter Providers: https://developer.apple.com/documentation/networkextension/content_filter_providers https://developer.apple.com/documentation/networkextension/c... - DNS Proxy Provider: https://developer.apple.com/documentation/networkextension/dns_proxy_provider https://developer.apple.com/documentation/networkextension/d...