System Architecture

Vacation auto-responders got you feeling down? Try something a bit more imaginative and take email system customization to the max! See how the best of old-school sysadmin meets bleeding edge extensibility technology.

While I was probably late to learn the concept of strategy testing, I might have learned about systems modeling too early in my career, stumbling on Donella Meadows’ Thinking in Systems: A Primer before I began my career in software. Over the years, I’ve discovered a number of ways to miuse systems modeling, but it remains the most effective, flexible tool I’ve found to debugging complex problems. In this chapter, we’ll work through:

USB 2 hubs are, by now, omnipresent. it doesn’t cost much to add to your board, and you truly have tons of options. The standard option is 4-port hubs – one uplink port to your host, fo…

When we think of an m.2 slot in our laptop or similar, it’s usually in the context of its PCI connectivity for high-speed applications such as solid state disks. It’s a connector that o…

I’m liking my new talk about Empirical Software Design.

Technology Readiness Levels (TRL) are a type of measurement system used to assess the maturity level of a particular technology. Each technology project is

Ubuntu releases are made semiannually by Canonical Ltd, its developers, using the year and month of the release as a version number. The first Ubuntu release, for example, was Ubuntu 4.10 and was released on 20 October 2004. Consequently, version numbers for future versions are provisional; if the release is delayed until a different month than planned, the version number will change accordingly.

Discover how each HTTP header works, how to troubleshoot issues, and enhance user experience.

Large Action Models and Large Language Models are transforming AI. Explore the myths, realities, and their impact on AI evolution and data resilience.

The PACELC theorem provides a more comprehensive framework for reasoning about distributed systems, ensuring we consider both partition scenarios and the real-time impact of latency.

Given that events play such a central role in event-driven architecture, there’s an astonishing lack of agreement on what should be contained in an event. This may be rooted in the fact that, depending on your perspective, events fulfill different purposes.

Technology readiness levels (TRLs) are a method for estimating the maturity of technologies during the acquisition phase of a program. TRLs enable consistent and uniform discussions of technical maturity across different types of technology. TRL is determined during a technology readiness assessment (TRA) that examines program concepts, technology requirements, and demonstrated technology capabilities. TRLs are based on a scale from 1 to 9 with 9 being the most mature technology.

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Today’s vector databases disconnect embeddings from their source data. We should treat embeddings more like database indexes—here’s how.

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Timezones are weird. But only finitely so. Here's the exact conceptual model you should have of them.

I have been operating a tree of millions of nodes in PostgreSQL. Here are some of the things I wish I knew before I started.

An introduction to storing hierarchical tree and graph data structures in a PostgreSQL database, using recursive CTE, ltree materialized paths and other schema design techniques.

Staff engineers hate this!

The HTTP Deprecation header informs clients that an API endpoint is or will be deprecated. The date can be in the past (deprecated) or future (to be deprecated).

Cloudflare's security features could be blocking RSS feed users from accessing your website

Instead of copying the data over into user space, BPF-DB executes many common database operations in the kernel itself.

The Participatory Culture Foundation (PCF) is a non-profit organization based in Worcester, Massachusetts.[1] Its primary project is a free and open-source software Internet television platform called Miro, formerly called the Democracy player.[2][3] It is also the developer of Broadcast Machine, an open-source video publishing tool.[1]

NT is often touted as a "very advanced" operating system. Why is that? What made NT better than Unix, if anything? And is that still the case?

Parallelism can exist without concurrency, but concurrency can enable parallelism as it provides a structure to solve a problem with parts that may be parallelized.

The biggest players’ scaling tricks are becoming increasingly relevant for the rest of us, which has led to the proliferation of architecture inversion.

While most USB-C docks are small enough to toss in your bag, the Aurora is anything but portable. This 47.3" wide monitor stand packs bays for four SATA

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