environment Archives

Tech Optimizer

September 2, 2026

Connecting My LangGraph AI Agent to Postgres

A stateful LangGraph agent was developed to streamline a 15-minute booking process, mimicking a customer service representative. It features a user-friendly Streamlit UI and a backend powered by a Postgres database. The agent can respond to customer queries, calculate service prices, manage acceptance or rejection of services, propose appointment time slots, and confirm booking details. The agent operates in two persistence modes: in-memory for quick testing and Postgres for durability. Testing can be conducted locally with Streamlit or using Docker to simulate a production environment. Docker allows the application to interact with a PostgreSQL server without local installation, enhancing reproducibility. The project includes a docker-compose.yml file to initiate a PostgreSQL container, and users can also utilize a cloud-based Postgres solution. The application behavior remains consistent regardless of the database setup. The complete source code is available on GitHub for testing and further enhancements.

AppWizard

September 2, 2026

Android 17 QPR2 Beta 4 fixes a long-standing APK sideloading pain point

Google's Android 17 QPR2 Beta 4 introduces a streamlined approach to app permissions, particularly for installing unknown apps. Key features include an inline dialog for managing permissions without disrupting current activities, one-time install permissions that grant temporary access for a single installation, and three options for APK installation prompts: "Only this time," "Always allow," and "Don’t allow." Additionally, users can manage "Install unknown apps" settings with options for "Always allow" or "Ask every time." These updates enhance user control and security for app installations.

AppWizard

September 2, 2026

Resonance: A Plague Tale Legacy review

Resonance: A Plague Tale Legacy is a prequel in the Plague Tale series that shifts from puzzle-stealth mechanics to a third-person action-adventure format. Set during a Mediterranean treasure hunt, players control Sophia, a smuggler from the second game. The game introduces a new sword combat system focused on melee action, allowing for creative interactions with the environment. While it retains some stealth elements, the main emphasis is on exploration and combat, featuring beautifully rendered Minoan ruins and puzzles involving light manipulation. The visuals are complemented by a thematic score from composer Olivier Deriviere. The narrative evolves from a light-hearted adventure to a darker, horror-infused story. The game is priced at £44, available on Windows 11 and Steam Deck.

AppWizard

September 2, 2026

Fully Playable Scream Game Found in Steam Leak [2026]

A horror game based on the Scream film franchise was discovered in the Steam data leak that occurred from August 29 to 31, 2026. The game, an unfinished multiplayer prototype created by Fatshark, was found by a Twitter user named Roly Poly Reaper, who managed to run it on their computer and enable online multiplayer. The prototype included several unfinished builds, with one featuring operational networking code that allowed players to take on the roles of survivors evading a player-controlled Ghostface. The project appears to have been a pitch build, never fully greenlit for production, and was stored in Valve’s old Steam2 backend for approximately 15 years before the leak. Roly Poly Reaper used the Goldberg Steam emulator and Radmin VPN to run the game, circumventing the need for a live connection to Valve’s servers. Fatshark, known for cooperative shooters, had reportedly built the Scream prototype around 2011, coinciding with the release of Scream 4. The prototype's existence predates the popularization of the asymmetric horror genre by several years. The Steam2 leak itself involved approximately 12 to 13 terabytes of data, including various internal builds and beta versions from Valve and third-party developers. Valve has not publicly commented on the leak.

Winsage

September 1, 2026

ReactOS 0.4.16 serves ’90s Windows nostalgia with fewer bugs

ReactOS has released version 0.4.16, which includes a unified boot and live CD image, a graphical installer, and significant upgrades to video, audio, networking, and storage stacks. The update addresses compatibility issues with legacy software, particularly with video drivers and the kernel’s system page table entries, improving stability. A new HD audio bus driver has replaced an older implementation, and the UniATA driver has been replaced with a new ATA driver for better compatibility and boot times. Networking capabilities have improved with expanded support for adapters and asynchronous connections. A headless Server Core installation type has been introduced, and compatibility restrictions with Windows Server 2003 have been lifted. ReactOS remains in an alpha state, and version 0.4.16 is available for download.

Winsage

September 1, 2026

Windows has been hiding these 4 powerful features in plain sight this whole time

Windows has several advanced features that can enhance productivity, including: - Clipboard History: Activated by pressing Windows+V, this feature stores the last 25 copied items and can be enabled through Settings > System > Clipboard. Users can pin frequently used items for easy access. - Virtual Desktops: Allows users to create multiple workspaces on a single monitor by pressing Windows+Ctrl+D. Users can switch between desktops using Windows+Ctrl+Left Arrow/Right Arrow or Windows+Tab. - Focus Sessions: A built-in Pomodoro timer in the Clock app that promotes productivity by working for 25 minutes followed by a 5-minute break. - Snipping Tool: Accessible via Windows+Shift+S, it allows users to capture screenshots and includes features like screen recording, a color picker, and a Text Extractor for converting text from images. - PowerToys: A suite of free and open-source tools from Microsoft that enhances Windows functionalities, including additional utilities and personalized templates.

Winsage

September 1, 2026

Don’t miss Windows 11 Pro for one PC for only $7.97

Windows 11 Pro is available for .97, reduced from its regular price of 9. This limited-time promotion expires at 11:59 p.m. PT on September 1. The upgrade offers a modern interface, improved multitasking, and robust security features, including Hyper-V, Windows Sandbox, BitLocker encryption, and Azure AD integration. It also includes Copilot, an AI-powered assistant for various tasks. The offer is available through StackSocial.

Winsage

September 1, 2026

Why governments worldwide are abandoning Windows for homegrown Linux alternatives

Windows is the most widely used desktop operating system, but Linux is gaining popularity among government entities globally, driven by a desire for independence from Western software due to geopolitical tensions. France plans to transition government workstations from Windows to Linux as part of a broader European movement for digital sovereignty, with the national police force having migrated 97% of its computers to a customized version of Ubuntu called GendBuntu. Germany is also adopting Linux, with Munich creating a customized distribution called LiMuX and other states like Mecklenburg-Vorpommern shifting to open-source platforms like Nextcloud. In Russia, the government is deploying Astra Linux to reduce reliance on Microsoft products following the Ukraine conflict. China is promoting Kylin OS, a Linux-based system, to achieve software self-sufficiency after the end of support for Windows 10. Governments are increasingly turning to Linux to diminish dependence on American technology and foster digital autonomy.

Tech Optimizer

September 1, 2026

Connecting My LangGraph AI Agent to Postgres

A stateful LangGraph agent was developed to streamline a 15-minute booking process, featuring a user-friendly Streamlit UI and a backend powered by a Postgres database. The agent responds to customer queries, calculates service pricing, manages service acceptance, suggests time slots, and confirms appointment details. It operates in two modes: in-memory for rapid testing and Postgres for persistent storage. Testing can be done locally using Docker, which simulates a Postgres environment, or with a hosted Postgres instance. The project includes a docker-compose.yml file to initiate a PostgreSQL 16 container, allowing the application to connect to the database. Data persistence is ensured through Docker volumes, and the application can be run with specific commands after setting up the environment variables. The system has been tested successfully, demonstrating its ability to manage bookings and maintain data integrity across sessions. Future enhancements are planned to improve the booking workflow and integrate additional communication channels.

Tech Optimizer

September 1, 2026

Autoscaling Lakebase Postgres

Choosing a database instance size without prior knowledge of the workload can lead to inefficiencies and excessive compute usage. Lakebase Postgres addresses this with an autoscaling feature that eliminates manual sizing, utilizing in-place VM resizing and a monitoring algorithm for CPU, memory, and working set size. Lakebase Postgres separates compute and storage layers, allowing independent resizing of compute nodes without affecting the database. The autoscaling algorithm relies on three signals: CPU load (cpuGoalCU), memory use (memGoalCU), and compute-cache working set size (lfcGoalCU). The CPU load is monitored every five seconds, aiming to maintain it at or below 90% capacity. Memory usage is tracked at two frequencies: overall memory every five seconds and Postgres-specific memory every 100 milliseconds, with a goal to keep usage below 75% of allocated RAM. The compute cache evaluates active data access efficiency, adjusting size based on workload. The working set is estimated using a modified HyperLogLog algorithm that records timestamps for page accesses, allowing for distinct page estimates over various time frames. The algorithm projects future working-set growth to allocate sufficient cache while capping it at 75% of RAM. Resizing the compute involves four components: the autoscaler-agent, vm-monitor, Kubernetes scheduler, and NeonVM. Scaling up occurs when any of the three goals indicate a need for more resources, while scaling down includes verification to ensure sufficient memory remains for operations. Timely adjustments in both directions are prioritized to minimize costs.