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How to Build a Local RAG with DeepSeek-R1, LangChain, and Ollama (Step-by-Step Guide)

TLDR Learn how to build a local Retrieval-Augmented Generation (RAG) system using DeepSeek-R1, LangChain, and Ollama. This guide details the installation, setup, and deployment of a RAG pipeline that processes PDFs locally, ensuring data privacy, cost efficiency, and customizability. The solution utilizes ChromaDB for document retrieval and Streamlit for a user-friendly interface.

🔗 https://blog.gopenai.com/how-to-build-a-privacy-first-rag-using-deepseek-r1-langchain-and-ollama-c5133a8514dd

The Real-Time Communication Library for Python

Key Features:

🗣 Automatic Voice Detection and Turn Taking built-in, only worry about the logic for responding to the user.

💻 Automatic UI - Use the .ui.launch() method to launch the webRTC-enabled built-in Gradio UI.

🔌 Automatic WebRTC Support - Use the .mount(app) method to mount the stream on a FastAPI app and get a webRTC endpoint for your own frontend!

⚡️ Websocket Support - Use the .mount(app) method to mount the stream on a FastAPI app and get a websocket endpoint for your own frontend!

📞 Automatic Telephone Support - Use the fastphone() method of the stream to launch the application and get a free temporary phone number!

🤖 Completely customizable backend - A Stream can easily be mounted on a FastAPI app so you can easily extend it to fit your production application. See the Talk To Claude demo for an example on how to serve a custom JS frontend.

💻 https://github.com/freddyaboulton/fastrtc

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When To Use the ?? And ||

TLDR The ?? (nullish coalescing) and || (logical OR) operators in JavaScript provide default values when the left-hand side expression is not provided. The ?? operator only checks for null and undefined, allowing other falsy values like 0, false, or an empty string to remain. The || operator checks for all falsy values. The ?? operator is particularly useful for APIs, optional parameters, or dynamic data that may not always be defined.

🔗 https://dorendev.hashnode.dev/when-to-use-the-and-in-javascript

Mastering Docker and Jenkins: Build Robust CI/CD Pipelines Efficiently

TLDR Learn how combining Docker and Jenkins can enhance CI/CD pipelines, ensuring consistent environments and faster deployments. The guide covers setup essentials, pipeline configuration, using plugins, optimizing pipelines, and troubleshooting. Key benefits include uniformity from development to production, scalability, and reduced errors.

🔗 https://www.docker.com/blog/docker-and-jenkins-build-robust-ci-cd-pipelines

Dify is an open-source LLM app development platform. Its intuitive interface combines agentic AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting you quickly go from prototype to production.

💻 https://github.com/langgenius/dify

17 Tips from a Senior React Developer

TLDR A senior React developer shares 17 essential tips gathered over 5+ years of experience at Palantir. These tips highlight the importance of mastering JavaScript before diving into React, leveraging official React documentation, focusing on building projects, using trusted libraries, problem-solving with Vanilla JS, and optimizing bundle size through lazy loading. The advice also includes keeping components simple, avoiding premature abstractions, adopting TypeScript early, and making time for regular code refactoring.

🔗 https://www.frontendjoy.com/p/17-tips-from-a-senior-react-developer

Learn to Use GitHub Actions: a Step-by-Step Guide

TLDR GitHub Actions allows developers to automate, build, test, and deploy their applications directly from GitHub. This guide provides step-by-step instructions for creating GitHub Actions using either the GitHub UI or locally via an IDE. It covers key concepts like workflows, events, jobs, and runners, and includes examples for setting up Node.js, Deno environments, zipping files, and deploying static websites to GitHub Pages.

🔗 https://www.freecodecamp.org/news/learn-to-use-github-actions-step-by-step-guide

Making Beautiful API Keys

TLDR To improve the aesthetic and usability of API keys, a startup created 'uuidkey', a package that encodes UUIDs into a readable format using Crockford Base32. This solution aims to provide secure, globally unique, sortable, and human-friendly API keys by leveraging the benefits of UUIDv7 and adding options such as removing dashes and adding prefixes for better management and security. The package is open source and available for programmers to implement in their own systems.

🔗 https://docs.agentstation.ai/blog/beautiful-api-keys

The 13 software engineering laws

TLDR Explore 13 key software engineering 'laws' like Parkinson’s Law, Hofstadter’s Law, Conway’s Law, and Murphy’s Law. These guidelines help engineering managers and developers understand and navigate common challenges in project estimation, team dynamics, product management, and feature creep.

🔗 https://newsletter.manager.dev/p/the-13-software-engineering-laws

Introducing the Supabase UI Library

TLDR Supabase has released an official UI Library consisting of ready-to-use components built on shadcn/ui, compatible with various React frameworks. The library includes components for password-based authentication, file uploads, real-time cursor sharing, user avatars, and chat functionalities. These components are fully customizable with Tailwind CSS and designed to simplify the integration of complex features in your projects. Additionally, Supabase provides AI code editor rules to enhance development with Supabase and Postgres.

🔗 https://supabase.com/blog/supabase-ui-library

How to Choose Between SQL, Query Builders, and ORMs in Node.js

TLDR When building Node.js applications with relational databases, developers can choose between raw SQL, query builders, and ORMs. Each approach has its strengths and weaknesses. Raw SQL offers fine-grained control and performance but is complex to manage. Query builders provide a balanced and secure way to create queries, while ORMs offer high-level abstraction for quick development and schema management. Ultimately, the best choice depends on the specific needs of the project and the developer's expertise. A hybrid approach combining these methods can also be effective.

🔗 https://blog.appsignal.com/2025/03/26/how-to-choose-between-sql-query-builders-and-orms-in-nodejs.html

Trends #7: TypeScript is getting 10x faster!

TLDR Microsoft has rewritten the TypeScript compiler in Go, leading to significant performance improvements like 10x faster builds and 50% less memory usage. JetBrains' State of Developer Ecosystem 2024 highlights TypeScript, Rust, and Python as the fastest-growing languages. AI tools are improving productivity but may degrade code quality and critical thinking skills. The World Economic Forum forecasts that skills in AI, big data, and creative thinking will be critical by 2030.

🔗 https://newsletter.techworld-with-milan.com/p/trends-6-typescript-is-getting-10x

Summer 2025 Tech Internships by Pitt CSC & Simplify

Use this repo to share and keep track of software, tech, CS, PM, quant internships for Summer 2025.

💻 https://github.com/SimplifyJobs/Summer2025-Internships

NVIDIA PhysX

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of NVIDIA CORPORATION nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

💻 https://github.com/NVIDIA-Omniverse/PhysX