Systems Design & Architecture

When people talk about system design, the conversation often starts with diagrams. Continue reading on Medium »

Most software architectures end up looking like the Leaning Tower of Pisa: fundamentally flawed, structurally terrifying, but somehow held… Continue reading on

Simon Brown explains that the C4 Model started not as a grand design theory, but as a practical answer to an embarrassing problem. Furthermore, he answers the q

I started wanting to write Haskell in TypeScript and ended up with three helpers and a lesson. An honest breakdown of which functional patterns survive in a rea

You’ve probably written a class, added a few methods, maybe even thrown in some inheritance. And then one day a weird bug shows up because… Continue reading on

The failure modes that take systems down, and where to look for each one Continue reading on Medium »

How we decide is at the core of architecture, and the architecture advice process is a way to decentralize architectural decisions. It needs to be supported by

Stop memorising UML diagrams. Start seeing patterns in the code you write every day. Continue reading on Medium »

I went back to Dijkstra’s On the role of scientific thought this week , the 1974 essay that gave us “separation of concerns.” Continue reading on Medium »

At first, age calculation looks like one of the easiest problems in programming. You take today’s...

Three rejections. Same feedback every time. The fix took one weekend to understand. Continue reading on Medium »

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A Declaration of Computing Independence Continue reading on Light_OS »

We are building massive, distributed enterprise systems. Continue reading on Medium »

Every non-trivial business operation touches more than one system. An e-commerce order reserves...

There are basically 2 types of architectures in software development: Microservice...

“First solve the problem, then write the code. Before writing the code, design the system.”  Continue reading on Medium »

From spaghetti to scalable: How to build correct systems? Continue reading on Level Up Coding »

How I built SnapShelf, an always-on-top staging shelf for Windows, and the WebView2, OLE drag-and-drop, and MSIX rabbit holes I fell into along the way.

Until now, you picked a programming language based on what you knew, what your team knew, or what the...

A founder told me last year: "We need admin features shipped by Friday. Can we just hardcode the...

If you play D&D or tabletop RPGs, you know the map problem: either you spend hours drawing maps...

The fastest way to learn system design isn’t a course — it’s reading how real teams solved real problems at scale. Continue reading on Medium »

Managing state in a growing React application often starts simple but can quickly become chaotic. Components pass data through multiple… Continue reading on Med

Most applications perform well when traffic is small. A few hundred users. Maybe a few thousand. Continue reading on AlgoMart »

Years of experience don’t make you senior. Here’s what actually separates a junior Android, Flutter, or iOS developer from a senior one —… Continue reading on M

The Problem: Pushing Instant Notifications to Millions of Devices Answer-first: Uber's...

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

Why Most Python Developers Stay Stuck Writing Scripts While Top Engineers Build Systems Continue reading on Python in Plain English »

By RUGERO Tesla (@404Saint). Industrial protocols always felt like an intentional black box to...

A notification service grew over three years. The initial interface was clean: send a message, check if delivery succeeded. Continue reading on Medium »

A document management system had a clean class hierarchy. Document was the base class. ReadOnlyDocument and EditableDocument were… Continue reading on Medium »

How MediatR and the Mediator pattern can untangle your application logic and make your codebase genuinely maintainable Continue reading on Medium »

Phil Karlton said "There are only two hard things in Computer Science: cache invalidation and naming things and off-by-one errors." When I was new to programmin

What Are the Career Opportunities in SAP ABAP RAP? Introduction Many SAP professionals are looking...

Architectural drawings are the foundation of every construction project. Long before crews arrive on site, drawings define how a building… Continue reading on M

in minecraft, the world is composed of a nearly infinite amount of blocks. in noita, the world might be smaller, but there are way more pixels in it and in deep

Build modular, scalable Angular applications with shared code, independent deployments, and Nx-powered development workflows. Continue reading on Medium »

Architecture preempts the experiment. A single line. Hold it. More as the build matures. — chiefmojo79

Every Django tutorial teaches you the same workflow: define a model, write a view, render a template, ship it. That workflow works… Continue reading on Medium »

Topology rewrite not bug repair. A single line. Hold it. More as the build matures. — chiefmojo79

Astaroth Development Notes — MSR Permission Map Implementation Continue reading on Medium »

Understand Trie from basics with simple examples and code Continue reading on Medium »

Every architecture conversation starts the same way. Someone asks "what if we need to scale?" and...

Architecture preempts the experiment. A single line. Hold it. More as the build matures. — chiefmojo79

Understanding hash tables, buckets, collisions, and rehashing through simple examples. Continue reading on Medium »