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Connecting My LangGraph AI Agent to Postgres
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.
silver Android smartphone
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.
ValleyRAT Backdoor Hides in Signed Adware That Users Add to Antivirus Exclusions
Tech Optimizer
August 31, 2026

ValleyRAT Backdoor Hides in Signed Adware That Users Add to Antivirus Exclusions

Silver Fox is linked to the distribution of a backdoor malware called ValleyRAT, disguised as the legitimate QN Wallpaper adware application. Once installed, ValleyRAT provides complete control over the compromised machine. The malware uses DLL sideloading to operate under the guise of a legitimate process, bypassing security measures. It disables Windows Defender and adds itself to autorun entries, and can mark its process as critical, causing system crashes if terminated. Kaspersky has identified specific indicators of compromise (IoCs) including hashes, command-and-control servers, and associated domains. In 2026, Kaspersky recorded over 100,000 detections of ValleyRAT affecting more than 1,500 unique users, mainly in China and India.
Gen Digital stock holds steady as investors await next earnings update
Tech Optimizer
August 31, 2026

Gen Digital stock holds steady as investors await next earnings update

Gen Digital Inc. (US3687361044) is a significant player in the consumer cybersecurity software market, with its stock trading steadily as of late August 2026. The company emerged from the merger of NortonLifeLock’s consumer security business and Avast, focusing on antivirus, identity protection, and privacy tools for individual and small-business users. It reported multi-billion-dollar revenue from consumer security subscriptions in its most recent fiscal year, demonstrating year-over-year revenue growth and solid profitability. The company’s management has provided guidance for stable to moderately rising revenue and strong operating margins for the current fiscal year. Analyst consensus indicates expectations of modest earnings per share growth. Gen Digital's strategy includes offering subscription bundles that integrate various security services, enhancing customer retention and average revenue per user. The company has a diversified global reach and reported substantial free cash flow, supporting debt servicing and product development investments. Its consumer security suite combines antivirus protection, VPN services, and identity monitoring into a single subscription offering. As of late August 2026, Gen Digital's stock trades on a major U.S. exchange, reflecting balanced expectations between earnings growth and competitive risks.
Replace another MS Office subscription with a $15 lifetime license
Winsage
August 31, 2026

Replace another MS Office subscription with a $15 lifetime license

Users can purchase a lifetime license for Microsoft Office Professional Plus 2019 for .97, reduced from the original price of 9. This offer is available until September 1. The suite includes seven applications: Word, Excel, PowerPoint, Outlook, OneNote, Publisher, and Access. Enhanced features include improved inking capabilities, advanced analysis functions in Excel, and new presentation tools in PowerPoint. Upon purchase, users receive immediate access to software with license keys and download links. Publisher will no longer receive support after October 2026, but the other applications will continue to be available for use.
Site provides instructions to get up to $175 back for your pre-installed Windows 11 license — new portal provides legal forms, but warns buyers not to wipe storage first
Winsage
August 29, 2026

Site provides instructions to get up to $175 back for your pre-installed Windows 11 license — new portal provides legal forms, but warns buyers not to wipe storage first

A significant portion of new PCs is sold with Windows 11 pre-installed, causing frustration among Linux enthusiasts. The Refund4Freedom initiative, launched by the Italian Linux Society and the Free Software Foundation Europe, aims to provide consumers with the option to purchase laptops without being tied to a specific operating system and to avoid paying for unwanted software. The initiative has three main demands: 1. Freedom of Choice: Consumers should not be forced to use or pay for pre-installed software. 2. Transparent Pricing: Consumers should be able to purchase hardware without pre-installed software and see price differences. 3. Clear Refund Processes: Manufacturers must provide clear guidelines for requesting refunds for pre-installed software. The Refund4Freedom website details various brands' reimbursement practices, noting that Acer and Lenovo have established refund processes for Windows, while Asus has a less visible route primarily in Italy. Dell and HP currently do not offer reimbursement options. For those wishing to reject Windows, Refund4Freedom advises documenting contract clauses, contacting customer service, and using a pre-made form for refunds, which is tailored for Italy. The typical reimbursement amount for a Windows license is around €50, though it varies by region and manufacturer.
Overcoming the Barriers of Commercial DBs with Open Source and AI… EDB Hosts 'PostgreSQL AI Summit'
Tech Optimizer
August 29, 2026

Overcoming the Barriers of Commercial DBs with Open Source and AI… EDB Hosts ‘PostgreSQL AI Summit’

A company's approach to artificial intelligence (AI) begins with determining the optimal structure for data storage and management, often facing challenges such as high costs of commercial databases and reliance on specific enterprise technologies. To effectively utilize AI, companies need to establish new infrastructures, including vector search capabilities, Search Augmentation Generative (RAG) systems, and data lakehouses. EDB is notable for connecting companies and technology partners that have transitioned to open-source databases. On September 3, EDB will host the 'EDB Postgres AI Summit Seoul 2026' at the Sofitel Ambassador Seoul, starting at 10:00 AM. This event is the largest PostgreSQL conference in Korea, themed 'Change the Game,' focusing on the shift from commercial databases to open-source and AI-driven frameworks, featuring real-world case studies. Approximately 300 C-level executives and IT decision-makers from various sectors are expected to attend, with participation by invitation only. The summit will include 15 sessions with customer case studies and technical presentations. Notable discussions will include IBK Industrial Bank of Korea's migration of 15 core systems to PostgreSQL, a semiconductor company's diversification of MPP databases on a DBaaS platform, and Kyobo Book Centre's database modernization strategy. Shopcast will present its development of an 'Agentic Lakehouse' integrating AI technology with a data lakehouse framework. The keynote address will be given by Kim Deok-joong, discussing organizational management strategies for integrating AI agents. The technical sessions will cover the architecture of the 'EDB Postgres AI' platform, which supports AI vector search and RAG, with live demonstrations of the analytics engine ClickHouse and LakeHouse technology for analyzing petabyte-scale data. EDB's domestic distributors and international partners will participate as sponsors. The summit aims to showcase technologies and case studies from the domestic ecosystem, addressing PostgreSQL adoption, system migration, operations, data analysis, and AI implementation. EDB manages transaction, analytics, and AI workloads using Postgres in cloud environments, serving over 1,500 global customers. Herve Timsit, EDB's Chief Revenue Officer, emphasized the event's focus on sharing tangible results and addressing the challenges of commercial databases while investing in AI infrastructure.
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