Jared from subway and blockchain sandwiches

Recently, the algorithmic trading firm Wintermute launched the Alpha Challenge. One of the topics that caught my attention and sparked my interest was a task titled “Jared-from-Subway.“: You are click trading a newly launched memecoin and notice you are being sandwiched by Jared. You see that Jared made a bunch of money doing this, and you’re interested in checking their...

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When an FTP Transfer Breaks Your Software: A Troubleshooting Tale

Upgrading software can sometimes be more of an adventure than you’d expect. Recently, I decided to upgrade kdb+ to version 4.1 on my Ubuntu server. Seemed simple enough, right? I downloaded the archive to my Mac, unzipped it, and then connected to the server via FTP using Filezilla. From there, I dragged and dropped the q.k and l64 folders over to the server. With everything in place, I...

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