W6100 with lwIP or other 3rd-party software stack

The io6Library seems to provide a good foundation for a socket-level interface to TCP and UDP, but the higher level examples found on WIZnet ioLibrary & io6Library examples · GitHub seem more for demonstration purposes rather than development due to lack of updates and documentation. Are there any examples, resources, or suggestions for integrating 3rd-party software stacks to support TLS, HTTP, ICMPv6, MQTT, with the W6100?