Tutorials

Python is now one of the most widely used languages in the world and the standard in artificial intelligence and data science. What it is, what it’s good for, its history, and how to take your first steps with version 3.14.

The Raft algorithm solves how a distributed cluster elects a single leader and replicates its log without corrupting data during node failures. Etcd, Kubernetes, Consul, and CockroachDB use it in production to maintain strong consistency.

Running SQLite in production is not just about copying the .db file: you need to understand ANALYZE, WAL mode, and how to make backups that actually restore. This guide covers all three with exact commands and code examples.

A developer who lands on a data team hears ETL, warehouse, lakehouse, and reverse ETL in the first meeting and understands none of it. This article maps the full data lifecycle, from source to dashboard, with code examples in SQL, Python, and dbt so any engineer can grasp what each tool does and when to use it.

Job queues decouple the producer from the consumer, but they hide hard problems: duplicate retries, non-idempotent jobs, and messages that never resolve. This article walks through each piece with code examples in BullMQ, SQS, and RabbitMQ.

A technical walkthrough of the most curious quirks in K&R C, the origin of the null pointer problem in C and C++, and how the for loop syntax changed from 1978 to C++20. Includes progressive code examples and commands to reproduce each quirk in your own terminal.