http://danielas3rtn54uwmofdo3x2bsdifr47huasnmbgqzfrec5ubupvtpid.onion/github-ipv6-proxy.php
The proxy is only available on IPv6, to prevent IPv4 users from using unnecessary resources, as they can already clone from GitHub directly. Note, that my https proxy is serving a ssl certificate issued for my domain, which means I decrypt and re-encrypt your traffic (and could potentially look into it, but I don't).