Programming
Languages, algorithms, memory and runtimes. Deep dives with working examples you can paste into a terminal.
$ ls -t ~/programming
Rust eliminates entire categories of bugs — null pointer dereferences, buffer overflows, data races, use-after-free — at compile time with no runtime overhead. Microsoft, Google, Amazon, and the Linux kernel all use it for systems code.
Java has been declared dead approximately forty times since 1995. It still runs Minecraft, Android, LinkedIn, Twitter's backend, and the financial systems that process your paycheck. Here is what the language actually is, how the JVM works, and why it refuses to die.
Python runs Instagram, Dropbox, Netflix, Spotify, and Reddit. It trains the models that power modern AI. It processes petabytes of data in enterprise pipelines. And I ignored it for years because I thought it was just for academics. Here is what changed my mind.
You know what's funny about parallelStream() in Java? Everyone acts like it's this magic performance switch. Just slap .parallel() on your stream and suddenly
Enumerations (Enums) provide a powerful way to represent a set of named values. Enums bring clarity, maintainability, and readability to code by replacing numeric or string constants with
asyncio isn't magic. It's a while loop that checks a queue. Once you understand the event loop model, async/await stops being confusing and starts being the most useful tool in your Python kit. Here's the mental model, the real code, and the mistakes that will ruin your day.
1,000 threads. All of them blocked on future.get(). That's the production nightmare that forced a full rewrite — and the journey through reactive callbacks, exception swallowing pitfalls, and finally a clean within() utility that handles timeouts without giving up the async model.
This guide walks through designing a fixed-size memory pool, implementing reference counting with cycle detection, coding Mark & Sweep, Mark & Compact, and Copying GC algorithms, and wiring root object identification and sweeping into a working CustomGarbageCollector class.
You tuned G1 flags for a week. Your pod has one CPU, which means the JVM quietly picked a single-threaded collector at startup and ignored every flag you set. Here is the OpenJDK source that made that decision.
Every guarantee you have been sold about Rust is real. It is also propped up on raw pointer arithmetic sitting in the standard library, held together by comments that nothing verifies. Here is what is actually back there.
Finding a matrix inverse is very useful not only in Computer Science but when solving equations by hand. However, using the formula Adj(A) / det(A) can be
The Goal By the end of this tutorial, you will be able to compile a binary written for the avr instruction set targeting the AtMega328P microcontroller on an
$ ssh community@sudosecurity
Ask in the forums, share a snippet, or work through a course on Learn.
