Ajit Kumar

I am a researcher and python programmer since 2012. Currently, exploring full time AI researcher and developer job role with my current position. I have been also developing and maintaining evnx tool.

Seoul, South Korea Joined on Jul 11, 2024 https://evnx.dev

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Ajit Kumar

Aug 15 '24

Dumping JSON data to Django Models: Using Django Setup and Commands

#python #django #json #restapi

6 min read

Ajit Kumar

Oct 30

Moving a production API to Hetzner, part 3: migrating data and cutting over

#devops #postgres #docker #dns

15 min read

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Ajit Kumar

Oct 30

Moving a production API to Hetzner, part 2: hardening and configuring the server

#devops #linux #security #ssh

11 min read

Ajit Kumar

Oct 30

Moving a production API to Hetzner, part 1: choosing and creating the server

#devops #linux #hetzner #selfhosting

11 min read

Ajit Kumar

Oct 27

One .env file, three answers: measuring how dotenv readers disagree

#env #dotenv #config #devops

27 min read

Ajit Kumar

Oct 22

The Railway Env-Var Breach: What Happened and How to Be Ready Next Time

#security #devops #env #vault

14 min read

Ajit Kumar

Apr 1

From AWS Key Leak to evnx: The Origin Story of a Developer's Safety Net

#rust #cli #devops #dotenv

6 min read

Ajit Kumar

Mar 13

Python 3 & Security: A Deep-Dive Tutorial

#python #security #ai #programming

43 min read

Ajit Kumar

Mar 13

PyTorch Tensors & Matrix Operations: A Deep-Dive Tutorial

#pytorch #python #matrix #ai

36 min read

Ajit Kumar

Feb 25

API Testing in VS Code Using `api.http` (REST Client) — A Practical Guide for Experienced Developers

#restapi #testing #api #backend

3 min read

Ajit Kumar

Feb 16

Stop Clicking Around: API Testing with `.http` Files (From Beginner to Pro)

#http #rest #api #testing

3 min read

Ajit Kumar

Feb 16

The Complete Guide to Ollama: Run Large Language Models Locally

#ollama #llm #rag #ai

10 min read

Ajit Kumar

Feb 16

Why Your Deep Learning Job Dies After SSH Logout — A Practical Guide to Persistent Linux Sessions

#linux #devops #ssh

4 min read

Ajit Kumar

Feb 13

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis- Part 7 - Deployment

#devops #django #nextjs #tutorial

27 min read

Ajit Kumar

Feb 11

When `venv` Lies: Debugging a Ghost Python 3.4 on Ubuntu

#python #ubuntu #virtualenv #devops

3 min read

Ajit Kumar

Feb 10

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis- Part 6: Image Optimization

#cdn #webdev #nextjs #latency

32 min read

Ajit Kumar

Feb 6

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis - Part -5 : Frontend

#nextjs #swr #webdev #redis

33 min read

Ajit Kumar

Feb 4

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis - Part 4 : Optimization Pillars

#django #python #sql #redis

17 min read

Ajit Kumar

Feb 4

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis- Part 3

#redis #devops #python #django

21 min read

Ajit Kumar

Feb 3

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis — Part 2: The Data Layer

#postgres #schema #database #django

21 min read

Ajit Kumar

Feb 3

From Zero to Cached: Building a High-Performance Housing Portal with Django, Next.js, and Redis

#django #python #nextjs #redis

19 min read

Ajit Kumar

Feb 2

Mastering Multi-Tier Caching: Solving the "Invisible Cache" Problem in Next.js + Django + Redis Architecture

#caching #nextjs #django #redis

15 min read

Ajit Kumar

Jan 28

Understanding Mixins in Python, Django, and Django REST Framework

#python #django #drf #mixin

6 min read

Ajit Kumar

Jan 28

Learning Rust by Building nginx-discovery: A Beginner's Journey with AI

#ai #beginners #rust #tutorial

10 min read

Ajit Kumar

Jan 27

Speed Up Your Django App: A Beginner's Guide to Redis Caching

#beginners #django #performance #python

4 min read

Ajit Kumar

Jan 26

Parsing NGINX Configurations with Rust: A Complete Guide to nginx-discovery

#automation #devops #rust #tutorial

9 min read

Ajit Kumar

Jan 22

The Complete Guide to Publishing Your First Rust Crate to crates.io

#rust #crates #package #opensource

13 min read

Ajit Kumar

Jan 20

Scaling Your Content Globally: Mastering Google Cloud Batch Translation for Developers

#programming #translation #googlecloud #python

9 min read

Ajit Kumar

Jan 20

Mastering Google Cloud Translation API with Python: A Developer's Guide

#googlecloud #translation #python #deeplearning

5 min read

Ajit Kumar

Jan 20

Production-Ready Rust Project Setup: From Zero to CI/CD

#rust #github #devops #development

10 min read

Ajit Kumar

Jan 19

Building an NGINX Log Discovery Tool in Rust - A Beginner's Journey

#rust #nginx #tool #regex

9 min read

Ajit Kumar

Jan 19

Django Static Files: The Complete Guide - From Local Dev to S3 Production with Tailwind CSS

#webdev #django #docker #githubactions

7 min read

Ajit Kumar

Jan 16

Learning Nginx Log Parsing using rsnx and Rust

#nginx #rust #log #devops

9 min read

Ajit Kumar

Jan 16

Why Your Images Fail to Upload on ImageKit and How to Fix It (With Ubuntu, Shell, and Python Scripts)

#imagekit #webdev #s3 #bash

3 min read

Ajit Kumar

Jan 13

When Cloud Storage Fails: The DevOps Playbook for EC2 Disk Crises

#aws #ec2 #memory #devops

4 min read

Ajit Kumar

Jan 12

Mastering Django Image Migrations: Local to S3, CDNs, and Beyond!

4 min read

Ajit Kumar

Jan 12

Mastering Emails in Django: From Hardcoded Strings to Branded Templates

#django #email #template #python

3 min read

Ajit Kumar

Jan 12

The Silent Registration Killer: When Auto-Formatters and Linters Collide

#linter #ruff #python #django

4 min read

Ajit Kumar

Dec 29 '25

Demystifying YAML: Your Essential Guide to Configuration Mastery

#yaml #yml #config #devops

9 min read

Ajit Kumar

Dec 27 '25

Bridging the Gap: Adding a `dev` Subdomain to Your Production EC2 Environment

#docker #aws #devops #tutorial

3 min read

Ajit Kumar

Dec 27 '25

From IP to Identity: The Complete Guide to Deploying Django with SSL, Nginx, and Docker

#nginx #django #docker #ssl

3 min read

Ajit Kumar

Dec 25 '25

Breathing Room: Expanding Your AWS EC2 Storage for a Smooth Docker Deployment

#docker #aws #devops #tutorial

5 min read

Ajit Kumar

Dec 25 '25

Production Deployment: Django, Docker Compose, & Nginx on AWS

#docker #aws #devops #django

3 min read

Ajit Kumar

Dec 24 '25

The Silent Truncator: Debugging Django's Vague `DataError`

#django #postgres #database #pdb

2 min read

Ajit Kumar

Dec 19 '25

Taming the Internal Loop: Why Your Next.js App is DDoSing Itself (and How to Fix It)

#nginx #webdev #devops #django

6 min read

Ajit Kumar

Dec 17 '25

Building a Daily Python Lesson Telegram Bot with Supabase and React

#react #telegram #supabase #webdev

3 min read

Ajit Kumar

Dec 17 '25

Blocking Web Scrapers with Fail2Ban + Nginx (Production Guide)

#fail2ban #nginx #devops #linux

3 min read

Ajit Kumar

Dec 17 '25

Blocking Web Scrapers and Crawlers Using Nginx (Without Cloudflare or AWS WAF)

#nginx #linux #hardening #devops

3 min read

Ajit Kumar

Dec 16 '25

Deploying a complex Django application to AWS Elastic Beanstalk (EB)

#aws #django #beanstalk #automation

3 min read

Ajit Kumar

Dec 16 '25

Visualize Your System Logs: Web-based dashboard

#webserver #dashboard #logs #linux

3 min read

Ajit Kumar

Dec 16 '25

Nginx Log Analytics with GoAccess: Local Logs, S3 Backups, and Beyond

#nginx #linux #ubuntu #backup

4 min read

Ajit Kumar

Dec 16 '25

Backing Up Nginx Logs the Right Way: From Basics to Automation

#backup #nginx #linux #logrotate

4 min read

Ajit Kumar

Dec 12 '25

Building Your First Agentic AI: Complete Guide to MCP + Ollama Tool Calling

#mcp #llm #ai

14 min read

Ajit Kumar

Dec 12 '25

Making Pytest Beautiful: A Complete Guide to Improving Test Output (with Plugins & Examples)

#pytest #testing #output #formatting

3 min read

Ajit Kumar

Dec 12 '25

Django + DRF Practical Testing: Blog, Writer, Category, SocialMediaMeta (Full Use Case) - Part 2

#testing #tutorial #django #python

3 min read

Ajit Kumar

Dec 12 '25

Introducing Automated Testing Late in a Django + DRF Project: Setup, Requirements, and Best Practices - Part-1

#django #pytest #drf #testing

3 min read

Ajit Kumar

Dec 11 '25

A Rough day with Ruff --fix in Django's apps

#django #ruff #python #commit

2 min read

Ajit Kumar

Dec 10 '25

Fixing Social Preview Images: Understanding Meta Tags, Correct Paths, and Cache Busting

#webdev #seo #socialmedia #website

3 min read

Ajit Kumar

Dec 8 '25

Refactoring a Mature Airflow Project: A Practical Guide to Scaling from Solo Development to Team Collaboration

#airflow #python #datascience #dataengineering

4 min read

Ajit Kumar

Dec 3 '25

Chasing the NVIDIA Ghost: A Linux Desktop GPU Odyssey

#ubuntu #nvidia #gpu #devops

2 min read

Ajit Kumar

Dec 3 '25

How I Escaped the Commit-Hook Loop in My Django Project

#git #commit #devops #python

2 min read

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