#Beginner
3 articles on Beginner. Practical notes, patterns, and lessons from building software.
Blockchain from Scratch: A Technical Intro with a Toy App You Can Actually Run
A ground-up, technical introduction to blockchains — hashes, blocks, Merkle trees, proof-of-work, consensus — paired with a ~200-line TypeScript toy chain you can run, fork, and break. The version of the explanation that assumes you're a developer, not an investor.
Kafka for Beginners: What It Is, When to Use It, and Producer/Consumer Examples in Java, Python, Node.js, and Go
A ground-up introduction to Apache Kafka — what it actually is, the handful of features that matter, the use cases it's genuinely good at, and working producer/consumer snippets in four languages so you can run your first topic in under ten minutes.
Redis for Beginners: What It Is, When to Use It, and Client Examples in Java, Python, Node.js, and Go
A ground-up introduction to Redis — what it actually is, the handful of data structures that matter, the use cases it's genuinely good at, and working client snippets in four languages so you can run your first cache, queue, and pub/sub in under ten minutes.