1. Introduction
2. 1. liltcp
3. 1. 1.1. Initializing and polling Ethernet peripheral
   2. 1.2. Polled TCP client
   3. 1.3. Intermezzo - sharing smoltcp stack across tasks
   4. 1.4. Async TCP client
   5. 1.5. Conclusion
4. 2. Sharing resources in no-std environments