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Visualizing Options Market Data in Python: Implied Volatility, Open Interest, and Max Pain

This post covers visualizing options market data in Python focusing on implied volatility, open interest, and max pain.
Options traders analyze implied volatility and open interest for market sentiment, liquidity, and price expectations. The Max Pain theory helps predict stock price behavior near expiry.
The code provided loads and cleans options data, calculates key metrics like ATM strike and expected price move, and visualizes open interest and implied volatility.
This analysis requires exporting options data to CSV files, running a Python script for processing, and interpreting charts to understand market activity and sentiment.

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⚙️ 10 More Fast-Build AI Database Ideas to Dominate a Niche (and Monetize Like a Pro)

The article presents 10 unique and fast-build AI database ideas with monetization strategies.
One idea is a 'Niche Stack Hunter' database of startup tech stacks, monetized through ebooks and affiliate links.
Another idea is 'The Failed Startup Graveyard,' featuring dead startups with post-mortems, monetized through PDFs and case study access.
The 'Viral Idea Analyzer' breaks down viral content, monetized by selling templates and offering tweet rewriting services.
The 'Landing Page SwipeDB' offers landing pages for inspiration, monetized through premium packs and subscriptions.
'Roasts-as-a-Service' provides brutally honest roasts for startups, monetized by PDF offers and AI pitch fixes.
Other ideas include 'Weird Niche Job Titles DB,' 'Fictional Startup Pitch Generator,' and 'ChatGPT Prompt Outcome Gallery.'
The 'SaaS Pain Point Dictionary' idea focuses on common SaaS pain points, monetized by content hooks and subscription plans.
These ideas can be implemented with tools like Airtable, Notion, and Twitter threads, enabling fast build, sharing, and monetization.
The article also offers a toolkit for building websites for local businesses and a system to rank simple websites for local keywords.
Both the AI database ideas and website building toolkit emphasize simplicity, speed, and early monetization opportunities.

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Dev

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🧠 From Zero to Hero: Building Your First LangChain Agent with RAG

This tutorial guides beginners on building an AI agent from scratch, incorporating tools, and Retrieval Augmented Generation (RAG) for knowledge access.
The tutorial covers creating a Python-based AI agent capable of chatting, using tools like a calculator, accessing a knowledge base for answers, and interacting via a web UI.
Prerequisites include basic Python knowledge and a willingness to learn and experiment.
Core components of the AI agent include the Brain (Large Language Model), Tools for performing actions, Knowledge Base (RAG) for external information access, and a User Interface (UI) for interaction.
Setting up the development environment involves Python installation, creating project directories, setting up a virtual environment, and installing necessary libraries like Flask and Requests.
Integration with Google's Gemini API key is crucial for language model interactions.
The tutorial progresses to building the agent's brain using Flask, implementing tools like a calculator, and integrating RAG for knowledge retrieval.
A User Interface is created using HTML, Tailwind CSS, and JavaScript for chat interactions with the AI agent.
Next steps include enhancing agent functionalities with more sophisticated tools, advanced RAG techniques, agent memory capabilities, better prompt engineering, error handling, asynchronous operations, agent frameworks, and UI improvements.
This comprehensive guide equips learners with the essential skills to build AI agents and encourages further exploration and experimentation.

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Medium

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Navigating the Tech Job Market in 2026: What Every Engineer Needs to Know

Layoffs, competition between junior developers and veterans, and rapid advancements in AI are shaping the tech job market in 2026.
Despite challenges, software engineering remains worth pursuing for those willing to adapt to the changing landscape.
Between 2022 and 2024, more than 400,000 tech jobs were cut, leading to hiring freezes and challenges for job seekers.
However, this period of correction is seen as an opportunity for companies to reassess their hiring practices and for engineers to thrive in the evolving industry.

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Writing Your First Smart Contract in Solidity (Hello World)

Smart contracts are small pieces of code that run automatically on the blockchain when certain conditions are met, making transactions immutable, transparent, and decentralized.
Solidity is a special language used to write smart contracts for Ethereum-based networks, unlike traditional programs that cannot be coded in languages like Python.
The basic 'Hello World' program in Solidity consists of a contract named HelloWorld with a message that initializes to 'Hello, World!' and can be updated through a public function.
By deploying and running the given code in Remix IDE, individuals can create and interact with their first smart contract on a network, showcasing the power and simplicity of Solidity development.

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Medium

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We Were the Stack

Reflecting on the past when people put effort into providing thorough answers on Stack Overflow from formatting code to clear explanations.
Acknowledging the disappearing act of those who shared their knowledge on the platform, leaving behind valuable contributions.
Recalling a time when Stack Overflow felt like a supportive community, where individuals genuinely cared about helping and sharing knowledge.
Emphasizing the sentimental value of being an active contributor on Stack Overflow, where answering a question and receiving the green checkmark was more rewarding than just gaining reputation points.

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Dev

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The Truth About Preloading in Modern Web

Code splitting divides application into smaller chunks to optimize bundle size.
Splitting by page is a common approach improving initial load time.
However, navigation delays can occur between pages.
Preloading is introduced to load code before user requests, reducing navigation delays.
Challenges include determining what to preload and when to preload it.
Various preloading strategies exist, such as mouseover-based and viewport-based.
Timing challenges include preloading too early or too late.
Browsers provide limited APIs for designing smart preloading.
Declarative navigation is crucial for effective preloading.
Legacy codebases with imperative navigation may face difficulties in implementing preloading.
Different frameworks have varying levels of support for preloading strategies.

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Medium

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How to Define, Handle, and Specify Errors in Swift

In Swift, error handling is elegantly managed using the do-catch syntax, allowing programs to respond gracefully to errors during runtime.
Errors in Swift are defined by creating custom types that conform to the Error protocol, typically by using an enum or a struct.
Swift allows for handling specific error types distinctly by using type-casting in do-catch statements and evaluating catch blocks from top to bottom.
Starting from Swift 6.0, functions can explicitly declare which specific error types they may throw, ensuring clearer and safer error handling.

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Dev

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AltSchool Of Engineering Tinyuka’24 Month 4 Week 1

CSS responsiveness allows websites to adapt to various screen sizes, ensuring optimal user experience across devices like smartphones and desktops.
Responsive design addresses issues of text size and layout on different devices, eliminating the need for excessive scrolling or zooming.
Flexible layouts using percentages or ems resize elements proportionally as screen sizes change, enhancing user experience.
Media queries in CSS apply styles based on screen size or device type, aiding responsiveness and usability across various platforms.
Flexible images ensure that pictures and videos resize within containers, maintaining aspect ratios for a responsive design.
Container units like cqw and cqi offer a flexible way to design based on container size rather than viewport, enhancing responsiveness.
Animations in CSS improve visual appeal and interactivity, creating dynamic user experiences that encourage return visits.
Transform functions in CSS allow manipulation of element appearance by rotating, scaling, skewing, or translating, enhancing visual effects.
Understanding order of transform functions is crucial for desired effects in animations, with effects processed right to left when combining multiple transforms.
Practicing and experimenting with these concepts is key to honing skills in responsive design and enhancing user experiences on websites.

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Medium

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Book Review: But How Do It Know?

The book 'But How Do It Know?' aims to demystify how computers work by breaking down their components into simpler concepts, changing readers' perspectives on computers.
The author simplifies complex computer concepts to make them understandable for people of all backgrounds, requiring no prior technical knowledge.
Readers build a simple CPU step by step while reading the book, using logic gates as building blocks and understanding the interaction between various parts of a computer.
Although lacking exercises for practical application and a deeper dive into modern hardware evolution, the book effectively fulfills its goal of explaining computer functioning in an accessible manner.

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Medium

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What Is Machine Learning, Data Science, and Deep Learning? — A Simple Guide

Machine Learning is when a computer learns tasks without being explicitly programmed, making predictions based on data.
Data Science involves analyzing data to gain insights and make informed decisions through reports and charts.
Deep Learning, a powerful type of Machine Learning, uses neural networks to tackle complex tasks by learning deep patterns from data.
Businesses are increasingly using AI and Data Science to enhance growth and efficiency, making understanding these concepts important for everyone.

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Medium

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‘China already has AI, but will it run on American platforms?’…

Nvidia reported a strong quarter with 69% growth, but warned of threats to its business due to US-China technology disputes.
China's ban on open-source AI models like DeepSeek and Qwen could harm Nvidia's business.
Nvidia CEO expressed mixed views on US export rules, praising Trump for repealing one but criticizing new restrictions imposed later.
Despite limitations, Nvidia expects second-quarter sales of around $45 billion, showing a 50% increase from the previous year.

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Dev

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Debugging Stripe Webhook Signature Verification Errors in Production

One common issue faced during the integration of Stripe in a Node.js backend is webhook signature verification failures.
The problem in production was due to using the Test Mode webhook signing secret for Live Mode events.
The fix involved updating environment variables and Stripe initialization code to handle different modes based on the environment.
A bonus tip was to use the Stripe CLI for local testing of webhooks to ensure correct functioning.

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Dev

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Getting Started with FastAPI: A Beginner’s Guide Using Python 🐍

FastAPI is a modern, high-performance web framework for building APIs with Python.
FastAPI is fast, uses Python type hints for validation, and is asynchronous by design.
FastAPI is more scalable than Flask and more minimal and lightning fast than Django REST Framework.
FastAPI is used in production for GenAI backends, microservices, ML model deployment, and startups.
To get started with FastAPI, ensure Python is installed and create a virtual environment.
Using PyCharm for development, install FastAPI and create your first FastAPI app.
FastAPI generates interactive Swagger docs and uses Pydantic for data validation.
A mini project is demonstrated - building a Simple Calculator API with addition and subtraction endpoints.
The code creates endpoints for adding and subtracting numbers, using Pydantic for data validation.
The FastAPI automatically parses JSON input, validates data, and generates interactive docs.

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Dev

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Google Cloud Auth Issue

Facing a Google Cloud authentication issue while trying to copy a file to a new cloud storage bucket, resulting in a '401 Anonymous caller does not have storage.objects.create access' error.
Steps to recreate the issue include downloading a cat image using 'wget', followed by attempting to copy the image to a cloud storage bucket using 'gsutil cp' command.
To resolve the issue, users can use 'gcloud auth login' command, follow the prompt to grant permission, receive a key, paste it in Google Cloud Console, and try running the command 'gsutil cp' again.

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