In Bash, `/dev/tcp` is a special file that allows you to establish network connections using the TCP/IP protocol. It provides a simple way to communicate with remote servers over a network.

But really, what is it? CSP, which stands for ‘Content Security Policy’, is a policy added to our request headers to the browser as an added layer of security to protect against Cross-Site Scripting (XSS) and data injection attacks. As a review, data injection attacks can be used for data theft, site defacement, and/or malware distribution.

There's a misconception that dead code causes no harm. Since it's not being used then it has no effect, positive or negative.. or so the logic goes. Wrong! not only is it a serious condition but can be fatal, just like Gangrene.

As most well-behaved programming languages, Ruby handles a zero division (1 / 0) by raising an error and, in doing so, alerts you of your grave mistake with a bold, in-your-face, ZeroDivisionError. However, when either dividing a float value by zero, an integer by float zero (0.0), or dividing a float value by float zero, there is no error...

An example of how we keep our database tidy with database-level tests.

How — and why — we migrated from ActiveRecord and Rollup Tables to Raw SQL and Materialized Views

Parallels and differences between system scalability and the second 'law' proposed in Engel's work - The Dialectics of Nature

How to speed up your RSpec boot time, and how to profile it when something goes wrong to speed it up correctly.

Our engineering job ladder

Here's how to use a Gitlab CI environment with R to make building, hosting, and sharing packages with your team incredibly simple.

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What we value the most