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Tech Optimizer

March 4, 2026

Troubleshoot RDS PostgreSQL High CPU Utilization

Vetrivel presents a guide on troubleshooting high CPU utilization in Amazon RDS and Amazon Aurora PostgreSQL-Compatible databases, focusing on three primary techniques to identify CPU spikes: 1. **Amazon CloudWatch**: Provides real-time monitoring and operational data to visualize CPU utilization trends and identify anomalies. 2. **Enhanced Monitoring**: Offers deeper insights into performance metrics for a more granular analysis of CPU usage. 3. **Database Engine Insights**: Allows diagnosis of performance issues directly through the database engine for better workload management. The video is segmented into chapters for easy navigation, covering the methods in detail.

Tech Optimizer

February 15, 2026

Manage PostgreSQL Databases Directly in VS Code with Microsoft’s Extension

Microsoft's PostgreSQL extension for VS Code streamlines database management by allowing users to connect to databases, write and execute queries, visualize schemas, and engage with GitHub Copilot without switching applications. It includes Entra authentication for Azure Database for PostgreSQL, enhancing security. The extension features a @pgsql GitHub Copilot agent that assists with PostgreSQL tasks, enabling users to rewrite queries, clarify functions, and analyze performance metrics. The Copilot Chat Agent Mode allows for multi-step tasks like debugging and schema optimization, requiring user permission for database changes. Users can visualize database schemas, manage connections for local and cloud-hosted databases, and utilize context-aware IntelliSense for writing SQL queries. Additional features include a server dashboard, schema migration capabilities, and Docker support for local PostgreSQL instances. Users can install the extension from the VS Code Marketplace.

Tech Optimizer

February 14, 2026

Creating a Data Pipeline to Monitor Local Crime Trends

The dataset utilized consists of police log entries from the Cambridge Police Department (CPD), which includes the date and time of incidents, type of incident, location, and a detailed description. The project follows a structured ETL process that involves extracting data via the Socrata Open Data API, validating the data for integrity, transforming it for optimal storage, and loading it into a PostgreSQL database. The extraction is performed using a Python client for the API, and validation checks ensure the presence of expected columns and the integrity of the data. The transformation process includes removing duplicates and splitting the datetime column into separate components. The data is then loaded into PostgreSQL, where a table is created to store the incidents. The entire ETL process is automated using Prefect, allowing for daily execution. Finally, the data is visualized using Metabase, which connects to the PostgreSQL database to create dashboards that display crime trends over time.

AppWizard

February 10, 2026

Google’s sentimental Gemini Super Bowl ad is a visionary showcase for your projects

Google's latest Super Bowl advertisement showcases its advanced AI tool, Gemini, through a narrative of a mother and son preparing to move into a new home. The ad demonstrates Gemini's image generation capabilities by retrieving cherished photos and visualizing their future space. The Super Bowl LX will air on February 8 at 6:30 PM ET on NBC. Additionally, the ad highlights a feature called Nano Banana, an intuitive image editing tool that allows users to create scenes by combining elements from various photos. Google also launched Gemini 3 last year, enhancing the AI's understanding and reasoning abilities. The advertisement aims to illustrate the practical applications of AI in helping individuals visualize their aspirations.

AppWizard

January 17, 2026

Arnis Brings The World To Minecraft: Bedrock Edition

Arnis, developed by Louis Erbkamm, is an open-source project that allows users to transform real-world locations into Minecraft blocks and maps. Initially limited to the Java edition, it has been updated to support the Bedrock Edition, enabling integration across various devices. The tool has improved elevation generation using NASA data, allowing users to visualize landscapes like the Alps and Himalayas, as well as explore a map of the Moon. The accuracy of the generated landscapes has been recognized for use in research studies on flood mitigation education. The project's advancements are attributed to a dedicated community that supports its development.

AppWizard

January 13, 2026

6 Free Apps To Automate Tasks on Android

In daily life, people engage in repetitive phone actions that shape their routines, such as turning off Wi-Fi or silencing notifications. Android devices offer basic automation features, but true automation potential lies in apps that allow personalized routines. Samsung Galaxy users can utilize Modes and Routines, integrated into One UI 5.1, to create preset profiles and custom automations based on triggers like time and location. Google’s Action Blocks enable users to create customizable shortcuts for complex tasks with a single tap, leveraging Google Assistant. Automate by LlamaLab uses a visual flowchart interface for routine creation, allowing users to design automation flows with over 320 building blocks available. aProfiles focuses on profile-based automation, adjusting settings based on time and location, while IFTTT allows users to create applets for connected services, with limitations on custom applets for free users. MacroDroid offers a three-part structure for automations, with over 100 triggers and actions, and a template library for pre-made macros, while the free version limits users to five macros.

AppWizard

December 27, 2025

How to Properly Benchmark your PC Games Using CapFrameX

Average Frames Per Second (FPS) is a common metric in PC gaming performance, but consistency in gameplay experience is equally important, highlighted by metrics such as 1% low and 0.1% low average FPS. CapFrameX is a tool used for capturing and analyzing detailed performance data, including frametimes, which provide a more accurate assessment of gaming performance than basic FPS counters. Key metrics generated by CapFrameX include: - Average FPS: Overall framerate averaged across the capture session. - 1% low average FPS: Average of the worst 1% of framerates, indicating sustained performance. - 0.1% low average FPS: Average of the worst 0.1% of framerates, highlighting rare but significant performance dips. To ensure accurate benchmarking results with CapFrameX, users should update their UEFI BIOS, operating system, and drivers, clear unnecessary applications, configure power settings for maximum performance, monitor temperatures, and conduct multiple benchmark runs under consistent conditions. The setup process for CapFrameX includes downloading the software, configuring capture options, and verifying the setup through test captures. After capturing benchmark runs, users can analyze the data using the Analysis and Comparison tabs in CapFrameX to evaluate performance metrics and identify potential issues. Common pitfalls in benchmarking include inconsistent scenes, overlooking frametime variance, and not preparing the system properly.

AppWizard

December 11, 2025

Minecraft Java Edition 1.21.11

Modifiers in the Environment Attributes system can either override specific attribute values or apply a modifier to a value from a source of lower priority. For example, the overworld dimension sets a waterfogenddistance of 96.0, and the plains biome modifies this distance with a multiply modifier of 0.85, resulting in an effective distance of 81.6 in the plains biome, while it remains 96.0 in other Overworld biomes. The most basic modifier is the override modifier, which replaces the previous value, and if no modifier is specified, the system defaults to override. Interpolation blends values within a single source, allowing for smooth transitions between multiple values, such as sky colors when moving between biomes. Interpolation occurs after modifiers have been applied and can be defined within a timeline using keyframes. Dimension types and biome definitions include an attributes field that links Environment Attribute IDs to their respective values, which default to the override modifier. An Attribute Track in a timeline includes fields like ease for interpolation and keyframes that specify value changes over time. Easing Types determine how interpolation occurs between keyframes, with various built-in options available. The Environment Attributes system also uses common data types such as RGB and ARGB color formats, particle options, and mob activity identifiers for consistency in implementation.

Winsage

December 4, 2025

Announcing the Microsoft Store Awards 2025 winners

The Microsoft Store Awards recognized exceptional applications that enhance user experiences within the Windows ecosystem. AI Assistants category: - Winner: Perplexity by Perplexity AI - Features native voice dictation, multi-modal AI search, and deep desktop integration for rapid research. - Winner: ChatGPT by OpenAI - Provides instant answers, direct image and file uploads, and enterprise-level privacy controls. Business category: - Winner: Invoice Maker & Estimate Creator by Moon Technolabs Pvt. Ltd. - Streamlines finance tasks with customizable templates and real-time payment tracking. Computer-Using Agents (CUA) category: - Winner: Manus by Manus AI - Automates complex tasks within a secure sandbox and allows users to guide ongoing actions. Creativity category: - Winner: n-Track Studio by n-Track S.r.I. - Transforms devices into recording studios with support for unlimited tracks and advanced effects. Developer Tools category: - Winner: ngrok by ngrok - Facilitates secure tunneling and remote access with automatic updates and compatibility with Windows Defender. Education category: - Winner: Scratch 3 by Scratch Foundation - Empowers students in computational thinking through engaging projects and block coding. Game category: - Winner: Castle Craft by Clever Apps Pte Ltd - Offers an immersive gaming experience with dynamic resource merging and family-friendly design. Music category: - Winner: Moises Live by Moises Systems, Inc - Leverages real-time AI audio separation technology for remixing and practice. Productivity category: - Winner: Notion by Notion Labs Inc - Consolidates tasks and notes into a searchable workspace with automation features. Each winner will receive a Store Award Winner badge in the Microsoft Store.

AppWizard

November 23, 2025

Classic text adventure Zork is going open source, but I’m side-eyeing Microsoft’s announcement about it hard

Microsoft has announced that the classic text adventure game Zork and its sequels are now available as open source software under the MIT License. This initiative follows Microsoft's acquisition of the Zork license through its purchase of Activision, which had previously acquired Infocom. The collaboration involves Microsoft, the Xbox Team, Activision, and digital archivist Jason Scott from the Internet Archive. Zork, Zork 2, and Zork 3 have been available on GitHub for several years, and Microsoft has officially submitted upstream pull requests to historical source repositories. The decision to make Zork open source highlights the game's celebrated writing and narrative depth.