Tech Blogs - Tutorials Dojo

Automating Publications with Claude, Canva, and n8n
Every business that runs a social media page knows the same repetitive cycle. Pick a topic. Write a caption. Design a graphic. Post it on schedule. Repeat tomorrow. Multiply that by every campaign, every seasonal push, every recurring content series, and it becomes a real operational cost, not just [...]
AI Ethics Explained: How to Use Artificial Intelligence Responsibly
Have you ever used ChatGPT to help explain a difficult topic? Maybe you've asked Gemini to summarize a lengthy article, generate ideas for a school project, write an email, or even use Claude for brainstorming concepts. If you're a student, you've probably wondered: "Is it okay to use AI [...]
Fine-tuning an LLM for natural Tagalog speech
If you're an ML engineer or a technical lead planning to pre-train a large language model (LLM) for Tagalog or Taglish, how do you start? In this article, we walk through the process of defining a target voice, building a data pipeline, running a QLoRA training experiment, and evaluating [...]
Building Diffender: A Serverless AI Security Reviewer for GitHub Pull Requests with Amazon Bedrock
A pull request can pass its tests, satisfy its acceptance criteria, and still expose a production credential in one line of code. Diffender is an Amazon Bedrock pull request reviewer built to identify that kind of risk before the change reaches the main branch. However, human review remains essential, [...]
AWS Certification Maintenance: Recertify Without an Exam
Many AWS-certified professionals face the same challenge every few years: preparing for another certification exam while balancing work, projects, and personal commitments. While certifications remain a valuable way to validate cloud expertise, the traditional recertification process can be time-consuming and stressful. To address this, AWS has introduced a new [...]
CCDV-F Claude Certified Developer Foundations Study Guide
Bookmarks CCDV-F Exam Domains CCDV-F Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Developer – Foundations (CCDV-F) certification is designed for technical professionals who build, [...]
CCAR-P Claude Certified Architect Professional Study Guide
Bookmarks CCAR-P Exam Domains CCAR-P Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Architect – Professional (CCAR-P) certification is designed for experienced professionals who build [...]
CCAO-F Claude Certified Associate Foundations Study Guide
Bookmarks CCAO-F Exam Domains CCAO-F Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Associate – Foundations (CCAO-F) certification is designed for professionals who use Claude [...]
CI/CD Crash Course: From Junior to Senior Developer
Continuous Integration and Continuous Delivery/Deployment (CI/CD) is the backbone of modern software teams. It's not just a buzzword for your resume — it's the automated pipeline that takes code from "it works on my machine" to "it works in production, reliably, every time." Understanding CI/CD deeply, not just using [...]
Everything You Need to Know About Harness Engineering
AI agents can now write code, browse the web, and run for hours without a human watching. Ask one to build a feature, and it might open ten files and call five tools. It can make a hundred small decisions before it ever shows you a result. That is [...]

Troubleshooting AWS Lambda and Amazon DynamoDB Connection Issues

Many consider Amazon DynamoDB to be one of the most effective solutions for handling vast amounts of data in the AWS Cloud. Its serverless architecture and highly scalable design ensure reliable performance, making it suitable for applications that demand fast, consistent, and low-latency access to data. DynamoDB's ability to handle large datasets while having steady integration with other AWS services further makes it appropriate for data-driven features. Its serverless design and usability help AWS [...]

Automating File Uploads from Slack to Amazon S3: Harnessing AWS Lambda and Slack API

Efficient management and storage of files is vital for any team’s productivity. Automating the process of uploading files from Slack directly to Amazon S3 using AWS Lambda provides a streamlined and secure method for file storage. This integration guarantees that files shared on Slack are systematically stored in a scalable manner, ensuring they are easily accessible for future reference. Leveraging AWS Lambda and the Slack API, this solution minimizes the risk of data loss [...]

How Content Chunking Works in Amazon Bedrock Knowledge Bases: How AI Really Reads Your Documents

Modern generative AI systems often appear to “read” entire documents instantly, returning precide answers form long PDFs or dense technical manuals. In reality, large language models do not consume documents holistically. Instead, they rely on carefully prepared context that is retrieved and supplied at query time. One of the most critical and often misunderstood mechanisms behind this process is content chunking. At its core, content chunking determines how raw documents such as PDFs, webpages, [...]

Unlocking the Secrets of DNA: Analyzing Genomic Data with AWS

Your DNA has the blueprint for your life. Much like everybody else, as it determines everything from our physical characteristics to our susceptibility to diseases. However, there is the challenge of decoding this complexity efficiently and accurately. With AWS HealthOmics—an AWS service for storing, querying, analyzing, and generating insights from genomics and other biological data. AWS HealthOmics helps scientists and researchers to unlock the mysteries of DNA at scale with its efficiency. Is this [...]

Understanding Resource Groups in Azure

Have you ever wondered how to manage and organize resources in the cloud effectively? With over 95% of companies using Microsoft Azure, mastering Resource Groups is crucial for efficient cloud management. Azure Resource Groups are the cornerstone of managing and organizing resources in Microsoft Azure. Whether you're new to Azure or looking to optimize your existing infrastructure, understanding Resource Groups is essential. This article will walk you through the fundamentals of Resource Groups and [...]

Cost Notifier: Keep Track of Your Google Cloud Platform Expenses

Have you ever had that moment when you realize your cloud costs have unexpectedly increased? Keeping track of your Google Cloud Platform (GCP) expenses usually requires manual effort, as you need to visit the console regularly. But what if you could receive daily updates on your costs automatically? Enter Slack notifications! Imagine receiving a daily report about your GCP billing directly in your favorite messaging app. It’s like having a personal assistant to help [...]

AWS Reserved Instance Management Made Easy with Slack Alerts

In today's fast-changing world of cloud computing, it's crucial to manage AWS resources efficiently. One important task is keeping track of Reserved Instances (RIs) to save costs and use resources wisely. This guide will show you how to set up a simple system that sends AWS Reserved Instance alerts to Slack, helping you stay on top. Reserved Instances (RIs) can save you a lot of money compared to On-Demand pricing in AWS. But if [...]

Build a Web-Based Linux Terminal Playground

In this blog, I will guide you through creating a Simple Web-Based Linux Terminal Playground that enables running Linux commands directly in the browser. We will use technologies such as Podman for containerization, React for the UI, and Express and node-pty for the backend. WebSockets will handle real-time communication between the frontend and backend, creating a seamless, secure, and interactive environment to learn and execute Linux commands. Each connection will be isolated and ephemeral [...]

AZ-400 Microsoft DevOps Engineer Expert Exam Study Path

Bookmarks Prerequisites Study Materials Azure Services to Focus On Validate Your Knowledge Final Remarks The AZ-400 Microsoft DevOps Engineer Expert certification is designed for professionals who want to demonstrate their expertise in implementing DevOps practices using Microsoft Azure technologies. This certification validates your ability to design, implement, and manage DevOps processes, including version control, build and release management, testing, and infrastructure as code. It optimizes development [...]

Understanding AWS Responsible AI: Key Concepts and Dimensions

As AI becomes a bigger part of our lives, it’s important to make sure it’s used responsibly. Responsible AI means building and using AI systems in ways that are ethical, fair, and accountable. AWS provides a range of tools to help organizations build AI systems that follow these principles. In this blog, we’ll look at what responsible AI is, the key dimensions of responsible AI on AWS, and the tools available to support these practices. [...]