As has been pointed out to me by my wife, I’m older now than before. That’s not to say that I’ve not learned things in that time. One of the more useful things I’ve learned is the Rust language. Life is about learning. I’ve developed a number of server-side applications over the years, and hit many issues with memory management and ensuring safety across threads in an environment where other developers don’t always understand the need for such things; it’s been a nightmare. Rust simply removes these bad experiences. This book could not have been written without my wife, Becki. She has taken up the slack when I’ve needed to work and not complained when, instead of sunning myself in Turkey on holiday, I’ve been away on other things, so only there in body. Her patience, love, companionship, and poking me are the reason why it’s been done. Thanks, baby. Willow, Ollie, George, Rich, Ash (as well as Lou and Angel) have not really helped, but I want to give them a mention, as no book I write would be complete without giving them a mention. I need to thank the folks over at Packt who, throughout the writing of this book, have seen staff changes, numerous rewrites, and many other ups and downs, but all along have had a happy smile and encouraging word. Here’s to the next book, folks!