Reversing UK mobile rail tickets
The UK has used small credit-card sized tickets to pay for train travel for years and years, since long before I was born — originally the APTIS ticket1, which later got replaced by a slightly easier to read version printed onto the same stock. Nowadays, the industry would very much like you to ditch your paper ticket in favour of a fancy mobile barcode one (or an ITSO smartcard2); not only do the
Why asynchronous Rust doesn't work
In 2017, I said that “asynchronous Rust programming is a disaster and a mess”. In 2021 a lot more of the Rust ecosystem has become asynchronous – such that it might be appropriate to just say that Rust programming is now a disaster and a mess. As someone who used to really love Rust, this makes me quite sad. I’ve had a think about this, and I’m going to attempt to explain how we got here. Many peo
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