programming language Archives

Tech Optimizer

November 27, 2025

How Letta builds production-ready AI agents with Amazon Aurora PostgreSQL

AI agents benefit from persistent memory, enabling them to recall past interactions and maintain context, which enhances customer experience in scenarios like customer service. The Letta Developer Platform allows developers to create stateful agents with advanced context management features. It supports self-hosting within a virtual private cloud and uses Amazon Aurora PostgreSQL for long-term memory storage. Aurora PostgreSQL offers capabilities such as efficient similarity searches with the pgvector extension, sub-second query latency, and dynamic storage scaling. Letta operates as a persistent service, allowing agents to function independently and scale horizontally using Kubernetes. The platform supports multi-tenancy and includes enterprise features for security and monitoring. To set up an Aurora Serverless cluster for Letta, users must create a database on Amazon RDS, configure security group access, and install the pgvector extension. Letta connects to Aurora using a PostgreSQL connection string. After establishing the connection, users can create agents, send messages, and view agent states and conversation histories stored in Aurora. Letta organizes data in 42 tables, including those for agents, messages, and memory blocks. Users can explore the database schema and examine the structure of stored messages and embeddings. Finally, it is recommended to delete the Aurora cluster and associated resources after completing the integration to avoid charges.

AppWizard

October 17, 2025

What Is XChat? Musk’s Private Messaging App With Blockchain-Style Encryption

XChat is an encrypted messaging and calling feature integrated into X (formerly Twitter), designed to enhance user privacy and functionality. It offers end-to-end encryption, self-destructing messages, versatile file sharing, and cross-platform audio and video calls without requiring a phone number for registration. Currently in beta testing for select paid subscribers, XChat aims to transform X into an “everything app” similar to WeChat, combining social networking, messaging, payments, and more while prioritizing user privacy. Developed using Rust, it employs public-key cryptography and may incorporate blockchain-inspired techniques for enhanced security. The platform seeks to merge social interaction with private communication and commerce, allowing for anonymous engagement. Challenges include ensuring reliable encryption, addressing metadata leaks, and gaining user trust to transition from established messaging apps.

AppWizard

October 12, 2025

This automation sandbox turns Minecraft and Stardew Valley into a super-satisfying way to make you smarter in real life

The Farmer Was Replaced is a farming game developed by Timon Herzog that recently launched its 1.0 version after two years in early access. Priced under , it teaches basic coding through gameplay, allowing players to create rules for a drone while managing a farm. The game features a continuous progression system and uses a programming language similar to Python, with tutorials that gradually introduce coding concepts. It has received an 'overwhelmingly positive' rating on Steam, with 96% of user reviews praising the experience. The game is currently available for .99 with a 20% discount until October 24.

Winsage

October 11, 2025

A new default text editor is coming soon to Windows 11

In 1991, MS-DOS 5.0 introduced the MS-DOS Editor, a text editing tool. A modern version called Windows Edit was recently launched, designed for the command line and supporting Unicode. It has removed the previous 300 KB file limit, allowing for files up to gigabyte sizes. Windows Edit is set to become the default text editor in the Windows 11 Command Prompt and is available for download on GitHub. It is open source, developed in Rust, and works on macOS and Linux as well.

Winsage

October 11, 2025

Starship is the customizable shell prompt every Windows user needs

Starship is a customizable command prompt tool designed to enhance the terminal experience across various shells, including PowerShell, Bash, Zsh, Fish, and Command Prompt. Built on Rust, it operates as a layer over existing terminal applications, dynamically constructing prompts that display relevant information such as the current directory, Git branch status, programming language versions, and system metrics. Configuration is managed through a starship.toml file, allowing users to customize modules, colors, and formatting. Installation on Windows can be done with the command "winget install starship." Starship provides real-time updates and feedback tailored to the user's context, enhancing both aesthetics and productivity in terminal use.

Tech Optimizer

October 3, 2025

Implementing A Kalman Filter In PostgreSQL To Smooth GPS Data

PostgreSQL, through its PL/pgSQL programming language, allows users to perform complex operations beyond standard SQL. The team at Traconiq implemented a Kalman Filter within PostgreSQL, which streamlines data analysis by eliminating the need for an external filtering pipeline. This method is beneficial for vehicle tracking, as it reduces noise from GPS inaccuracies. Transitioning state information between rows can be achieved with creative SQL techniques. PL/pgSQL is similar to Oracle’s PL/SQL, allowing for easy adaptation of code to Oracle environments. Code implementations and benchmarks are available on GitHub, showing that the most efficient strategy involves offline aggregate processing routines, aligning with typical batch processing tasks to optimize storage and performance.

Winsage

September 8, 2025

MostereRAT Targets Windows Users With Stealth Tactics

A recent investigation by cybersecurity experts revealed a sophisticated phishing campaign utilizing a new strain of malware called MostereRAT, which targets Microsoft Windows systems. This Remote Access Trojan (RAT) allows attackers extensive control over compromised devices and employs advanced evasion techniques, including being crafted in the Easy Programming Language (EPL). MostereRAT can disable security tools, obstruct antivirus traffic, and establish secure communications with its command-and-control server through mutual TLS (mTLS). The attack begins with phishing emails aimed at Japanese users, leading to the download of a Word document that contains a concealed archive. This prompts the user to execute an embedded executable, activating the malware, which installs itself in the system directory and creates services with SYSTEM-level privileges. It also displays a deceptive message in Simplified Chinese to further spread the malware. MostereRAT can disable Windows Update, terminate antivirus processes, and impersonate the TrustedInstaller account to escalate privileges. Its functionalities include keylogging, system information collection, downloading and executing payloads, creating hidden administrator accounts, and running remote access tools like AnyDesk and TightVNC. Some components of MostereRAT's infrastructure were previously linked to a banking trojan reported in 2020.

Tech Optimizer

August 25, 2025

Python Dev Survey: PostgreSQL, AI Agents, Rust Drive Trends

- PostgreSQL is the preferred database for Python projects, with 45% of surveyed developers choosing it, up from 38% the previous year. - MySQL usage has declined to 30% among developers. - Over 80% of developers regularly use AI coding tools like GitHub Copilot and OpenAI’s ChatGPT. - 65% of AI tool users report productivity gains of at least 20%. - Concerns exist regarding over-reliance on AI tools, particularly in generating nuanced logic. - Rust's usage for Python package development has surged by 22% year-over-year. - Rust is favored for its memory safety and performance in creating secure extensions. - 86.7% of Stack Overflow users expressed a desire to continue using Rust. - Projections suggest AI agents could manage up to 40% of routine coding tasks by 2026. - Rust's integration is expected to reduce bugs in critical Python packages by 30%.

Tech Optimizer

August 21, 2025

New Malvertising Attack Spreads Crypto Stealing PS1Bot Malware

Cisco Talos researchers have identified a new malware framework called PS1Bot, active since early 2025, which spreads primarily through malvertising. PS1Bot is crafted using PowerShell and can steal sensitive information, log keystrokes, take screenshots, and gain unauthorized control over systems. It is capable of extracting passwords, browser cookies, and cryptocurrency wallet seed phrases. The malware operates stealthily using in-memory execution to avoid detection by antivirus software and checks for antivirus presence before launching attacks. It spreads through malicious online advertising, where users may download a compressed file containing the malware. Cisco Talos has noted ongoing enhancements to PS1Bot, with similarities to other malware families suggesting a connection among cybercriminals.

TrendTechie

August 18, 2025

Медиа-сервер на основе Telegram-бота / Питонист пробует Go

The project involved creating a Telegram bot to streamline the process of downloading and viewing movies in a home theater setup. The bot integrates with DLNA technology, allowing films to be played on various devices within a home network. Key functionalities include downloading films from torrents and streaming sites, automatic re-encoding for compatibility with older televisions, download monitoring, file management, and a role-based access system. The bot supports multiple languages and can issue temporary access for guests. Initially developed in Python, the bot was later rewritten in Go for better performance and compatibility across hardware platforms. It requires at least 1 GB of RAM and a Linux operating system to function effectively. The source code is available on GitHub.