How to Run LLMs Locally with Ollama and Python
Install Ollama, pull an open model, and call it from Python with streaming, error handling, and a speed…
Category
Backend Development
These backend development guides cover the parts users never see: data, queues and services. Most posts compare two options and explain when each wins.
For example, SQL vs NoSQL and Kafka vs RabbitMQ help with common choices. Also, monolith vs microservices tackles the biggest one. Language series live in the Java, Python and Node.js sections below.
149 articles
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Threads in Java: Creation, Lifecycle, and Coordination
Executive Summary: A Java thread runs a Runnable once you call start, and it moves through a defined…
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Practice: Build a Small Network Client or File Tool
Executive Summary: This practice project builds LinkCheck, a Java tool that reads URLs from a file, fetches each…
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How to Build a RAG App in Python Without a Framework
Retrieval-augmented generation in about 150 lines of plain Python: chunking, retrieval, a grounded prompt with citations, a refusal…
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Monolith vs Microservices: The Decision, Not the Fashion
Monolith vs microservices decided honestly: the side-by-side comparison on team shapes, scaling, and operational maturity, the modular monolith…
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Modern Java Features: var, Text Blocks, and Pattern Matching
Executive Summary: Modern Java gives you var for local type inference, text blocks for multi-line strings, switch expressions…
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Python Embeddings and Semantic Search: Build It from Scratch
Turn text into vectors, store them in a NumPy matrix, and rank by cosine similarity. A complete semantic…
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Spring Boot REST API
Executive Summary: Java REST services without clear layering end up with fat controllers and brittle contracts. Here I…
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Spring Boot Auto-Configuration: Your First REST Endpoint, Explained
Executive Summary: Spring Boot auto-configuration sets up the server, dependency injection, and JSON handling, so a REST endpoint…
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Networking Basics in Java: Sockets and HTTP Clients
Executive Summary: Java networking ranges from raw TCP sockets to the built-in HttpClient. I cover ServerSocket and Socket…
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Dependency Injection Concepts in Java
Executive Summary: Dependency injection means a class receives its collaborators, usually as interfaces through the constructor, instead of…
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How Kafka Works: Topics, Partitions, and Consumer Groups
How Kafka works from the log out: topics and partitions as the units of order and parallelism, consumer…
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Serialization in Java: How It Works and Why to Avoid It
Executive Summary: Java serialization turns an object graph into bytes through Serializable, with serialVersionUID and transient controlling compatibility…
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Understanding JVM Internals: From Source Code to Runtime
Executive Summary: Treating the JVM as a black box makes tuning and production debugging guesswork. Here I walk…
