Aman Raj (@huamanraj)

Where RAG Fails: Understanding the Limitations of Retrieval-Augmented Generation

Large language models can answer questions, write content, summarize information, and help with many other tasks. However, they have one important limitation: they do not automatically know everything

Jul 17 · 20 min readblogs.amanraj.me

Secure Image Uploads from Expo to Amazon S3 Using Presigned URLs

Uploading images directly from an Expo app to Amazon S3 can make your uploads faster and reduce work on your backend server. However, you should never put AWS access keys inside your Expo app. Anyone

Jul 14 · 11 min readblogs.amanraj.me

How to Run Open-Source AI Models Locally for Free on Mac and Windows

Today, you do not need to pay for an AI API just to test AI models. You can run many open-source or open-weight AI models directly on your own laptop or PC. This means the model runs on your machine,

Jun 18 · 12 min readblogs.amanraj.me

Deploying Qwen3 235B on JarvisLabs with vLLM

This guide explains how to deploy Qwen3 235B on JarvisLabs and expose it as an OpenAI-compatible API endpoint. We will deploy this model: Qwen/Qwen3-235B-A22B-Instruct-2507-FP8 We will serve it with

Jun 17 · 7 min readblogs.amanraj.me

Stop Committing Your .env Files: The Global Gitignore Hack Every Developer Forgets

Okay, real talk. How many times have you cloned a fresh repo, opened it in VS Code, started hacking away, only to realize—crap—you just committed your .env file with your database password in plaintex

Apr 5 · 7 min readblogs.amanraj.me

Aman Raj

About

Available for

Aman Raj's blogs

Where RAG Fails: Understanding the Limitations of Retrieval-Augmented Generation

Secure Image Uploads from Expo to Amazon S3 Using Presigned URLs

How to Run Open-Source AI Models Locally for Free on Mac and Windows

Deploying Qwen3 235B on JarvisLabs with vLLM

Stop Committing Your .env Files: The Global Gitignore Hack Every Developer Forgets

Aman Raj

About

Available for

Aman Raj's blogs

Where RAG Fails: Understanding the Limitations of Retrieval-Augmented Generation

Secure Image Uploads from Expo to Amazon S3 Using Presigned URLs

How to Run Open-Source AI Models Locally for Free on Mac and Windows

Deploying Qwen3 235B on JarvisLabs with vLLM

Stop Committing Your .env Files: The Global Gitignore Hack Every Developer Forgets

Aman Raj

About

Available for

Aman Raj's blogs

Where RAG Fails: Understanding the Limitations of Retrieval-Augmented Generation

Secure Image Uploads from Expo to Amazon S3 Using Presigned URLs

How to Run Open-Source AI Models Locally for Free on Mac and Windows

Deploying Qwen3 235B on JarvisLabs with vLLM

Stop Committing Your .env Files: The Global Gitignore Hack Every Developer Forgets

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Aman Raj

About

Available for

Aman Raj's blogs

Where RAG Fails: Understanding the Limitations of Retrieval-Augmented Generation

Secure Image Uploads from Expo to Amazon S3 Using Presigned URLs

How to Run Open-Source AI Models Locally for Free on Mac and Windows

Deploying Qwen3 235B on JarvisLabs with vLLM

Stop Committing Your .env Files: The Global Gitignore Hack Every Developer Forgets