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Before I get to this project known as netcrab, I thought it'd be fun to share some history from Xbox's past... call it the origin story of this tool. Let's go back in time a little bit. The year was 2012 and I had joined the Xbox console operating system team a year or so before. We'd wrapped up working on one of the last major updates for the Xbox 360 and were well underway with the next project, the thing that would eventually release as the Xbox One.
So I started by using Tokio, a popular async runtime. The docs and samples helped me get a simple outbound TCP connection working. The Rust async book also had a lot of good explanations, both practical and digging into the details of what a runtime does.
For the second problem, I found a useful crate called console. This gives the ability to read one character at a time without the user needing to hit Enter. It has a weird bug on Unix-type systems though, so it currently defaults to the -i stdin-nochar input mode there.
By this time I had already gotten tired of parsing arguments by myself and had looked for something to help with that. I found a really dang good argument parsing library called clap. What makes it so cool is it's largely declarative for common uses. You simply mark up a struct with attributes, and the parser automatically generates the usage and all the argument parsing code.