Creating a simple DIY VPN (Virtual Private Network) in Python involves setting up a basic client-server architecture that encrypts traffic between the client and server. However, please note that creating a fully secure and robust VPN solution requires a deep understanding of networking, encryption, and security best practices. The code below is a very basic example for educational purposes and should not be used in production or for securing sensitive data.

To connect your Shopify store with Google Product Ads (Google Shopping), follow these steps:

Automating Google Shopping can significantly streamline the management of product listings, ad campaigns, and performance monitoring. Here’s how you can automate various aspects of Google Shopping:

To access Indian Railway train ticket data via an API using **IRCTC**, you would typically rely on the Indian Railways Catering and Tourism Corporation (IRCTC) APIs. However, direct access to IRCTC's train ticket booking APIs is usually restricted and requires official permission or partnerships due to security and privacy concerns. You can use the **Indian Railway API** provided by **IRCTC** or third-party services for train information, PNR status, and seat availability.

FlixBus provides an API that allows developers to integrate services like bus search, seat availability, booking, and more. The API is typically accessible only through a partnership or affiliate program, meaning you'll need to contact FlixBus directly to request access to their API.

Instagram API automation can be a powerful tool for managing tasks like posting, fetching data, and analyzing insights. However, Instagram has strict rules regarding automation to prevent spam and maintain quality. Below is a guide on how to safely automate tasks using Instagram’s official API.

Setting up a shopping cart on Instagram involves using **Instagram Shopping**, a feature that allows businesses to showcase products directly on their Instagram profile and enable users to purchase products without leaving the app. Below are the steps to set up Instagram Shopping and enable a shopping cart for your business:

TradingView doesn’t provide a free API for direct data extraction, but you can still access data using various methods, including:

Creating a **VR application** with **SFML** is challenging because SFML (Simple and Fast Multimedia Library) is not inherently designed for VR. However, it can still be done by combining SFML with an **OpenVR** library (such as [OpenVR by Valve](https://github.com/ValveSoftware/openvr)) or **OpenXR** for VR headset support, while using SFML for rendering. Here’s a guide to help you set up a basic VR application using SFML and OpenVR on a Windows machine.

LibreCAD is a free, open-source 2D CAD application for creating and editing technical drawings. It supports a variety of commands for drafting and editing. Below is a list of key LibreCAD commands categorized by functionality: