freeCodeCamp.org

We're a community of millions of people who are learning math, programming, and computer science together. A 501(c)(3) public charity. Tweets by @abbeyrenn.

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If you want to run an LLM, you don't have to rely on cloud-based APIs anymore - you can do it right on your local machine.

And in this tutorial, @chairahalkar helps you build your own local AI agent.

You'll use the Qwen 3 family of LLMs along with Ollama which simplifies running LLMs locally.

https://t.co/JgLjzAbTo0

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If you want to stay up to date on the latest AI and Machine Learning research, reading academic papers can help.

But they can be a bit intimidating and hard to understand sometimes.

In this course, you'll learn how to approach and understand the theory, math, and structure in academic papers.

https://t.co/FL6fOAI0yZ

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AI Engineers design, build, and deploy AI models and systems to solve complex real-world problems.

And if you want to get into the field, this handbook is for you.

In it, @tatevkaren7 discusses the skills you should have, shares tips for getting started, and goes through use cases for AI tools & technologies.

https://t.co/55cgy12Cxh

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If you're an aspiring Data Scientist, Data Science competitions can help improve your skills.

And this course teaches you about Kaggle, a popular competition platform & DS community.

It covers picking competitions, feature engineering, selecting a model, & more.

https://t.co/GRctZvtulI

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Potential employers may want to know that you have solid Kubernetes skills.

Well, to show them you do, you can earn the Certified Kubernetes Administrator cert. And this course helps you study.

In it, @beaucarnes covers cluster architecture, workloads and scheduling, networking, storage, and more with tons of demos.

https://t.co/cKN8xzRYGH

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You may have heard about the Model Context Protocol and wondered how it lets AI tools connect to other tools, APIs, and systems.

Well, it's all thanks to MCP servers.

In this guide, @manishmshiva explains how MCP servers work and helps you build your own with Python and the FastMCP library.

https://t.co/Ak7bbR7BMm

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For today's coding challenge, you'll be hunting for buried treasure...sounds fun, right? Check it out on the freeCodeCamp mobile app.

[freeCodeCamp.org @freeCodeCamp]

You can learn key cybersecurity concepts from Harvard professor Dr. David J. Malan right on the freeCodeCamp YouTube channel.

In this course, Dr. Malan teaches you how to secure your accounts, databases, software systems, and more.

You'll also learn how to protect your privacy and see examples of both high-level and low-level threats.

https://t.co/IHXleBiS3F

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Building software with AI is not all about prompting.

Adding rule-based checks and tests makes results safer and more reliable.

In this in-depth tutorial, @sumit_analyzen teaches you how to use a practical coding loop technique to get better results from AI.

https://t.co/uBuvz0Jz9s

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Getting a web dev job today is more competitive than ever.

You need more than just a portfolio to land a job.

Here, Ilyas goes over strategy, skills prep, applications, interviews, and more so you make smarter decisions while looking for your next role.

https://t.co/JcUBcNhbU6

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RAG can fail in various ways even when it finds the right chunk.

The problem is often context budgeting: the chunk was found, but it didn't fit into the final prompt.

In this guide, Sviatoslav shows how to handle small context windows with document summaries, chunk summaries, raw chunks, and traceable prompt budgets.

https://t.co/prODc2ohZs

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Large AI models can be powerful, but they’re also pretty expensive to run.

In this article, @ogbemi_ejegi explains how model distillation transfers learned behavior from a large teacher model to a smaller student model.

You’ll learn about the main distillation techniques and implement one in PyTorch.

https://t.co/IJlZkT4JJb

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A vite: not found error can be the last symptom of a dependency install that failed much earlier.

In this article, Ahmed shows you how to trace the failure back and see what actually made it into node_modules.

You’ll also learn how to safely rewrite public-package URLs and add checks that stop broken container builds sooner.

https://t.co/41fOPPFBB4

[freeCodeCamp.org @freeCodeCamp]

Can you believe the first iPod came out 25 years ago today?? Time does fly. For today's coding challenge, you'll get an array of song objects and will need to return the two most played songs, with the most played song first. Check it out on the freeCodeCamp mobile app.

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Wearable baselines are useful until major physiological changes make your old “normal” less meaningful.

In this article, Shradha looks at how pregnancy can affect your numbers, and how certain wearables respond.

You’ll also see what still needs to improve, from gestational-age context and symptom tracking to exercise guidance and more.

https://t.co/Axkugcm37I

[freeCodeCamp.org @freeCodeCamp]

Neural networks need more than straight lines when modeling complex relationships.

In this article, Samyukta explains how non-linearity lets neural networks change their behavior across different input ranges.

You’ll learn how piecewise linear functions, ReLU, and sigmoid work, plus how to use them to predict values and probabilities.

https://t.co/OkwV2M4FJV

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Search often needs both exact keyword matching and semantic understanding.

In this course, Beau shows you how to build a hybrid search engine right inside PostgreSQL using BM25 and vector retrieval.

You’ll combine a few different techniques to search 240,000 Wikipedia articles from one database.

https://t.co/HPSep9BTvd

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Some scheduled jobs don't need a separate worker, crontab, or Kubernetes CronJob.

If the work is already SQL, PostgreSQL can run it directly with pg_cron.

In this guide, @Iyiola_dev_ shows you how to schedule cleanup jobs, refresh materialized views, build rollup tables, manage permissions, and more.

https://t.co/Rs349wNz3C

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AI agents don't always fail by crashing. Sometimes they fail by running forever.

In this guide, @dannwaneri teaches you how to build a production-safe agent loop in Python.

You'll define exit conditions, enforce token and turn limits, write an append-only SQLite audit trail, and add human review before downstream systems receive output.

https://t.co/Kf4ljn1RRZ

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Your CI/CD pipeline doesn't have to just fail and wait for someone to investigate.

In this course, Farzeen shows how to build a self-healing DevOps workflow with GitHub, OpenAI, and n8n.

You'll analyze failing logs, generate patches, open pull requests, secure secrets, trigger webhooks, and notify your team automatically.

https://t.co/tZubZ7fY6A