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50 Steps to Master #AgenticAI in 2025 - 2026
by @Python_Dv
#GenerativeAI #ArtificialIntelligence #MI #MachineLearning
Everyone keeps asking:
“What is the best AI tool?”
Wrong question.
The better question is:
👉 What is the best AI tool for THIS job?
Most people use AI like a hammer and treat every problem like a nail.
But AI isn’t one tool anymore.
Different AI systems have evolved into specialists:
🧠 Brainstorming & Strategy → Claude
🔍 Research & Deep Research → Gemini
💻 Coding & Software Development → Claude Code
⚙️ Automation & Workflows → Zapier
🎨 Image Generation → Higgsfield
📚 Learning & Knowledge Management → NotebookLM
The biggest productivity gains don’t come from using more AI.
They come from using the RIGHT AI.
This is why many professionals are disappointed with AI.
They’re asking a research tool to brainstorm.
They’re asking a chatbot to teach.
They’re asking a writing assistant to automate workflows.
Wrong tool. Wrong outcome.
The winners over the next few years won’t necessarily be the people with the most AI tools.
They’ll be the people who know:
✓ Which AI to use
✓ When to use it
✓ How to combine them into systems
That’s the real competitive advantage.
The poster below summarizes the current AI landscape in 2026 and where each tool excels.
Which AI tool has given you the biggest productivity boost this year?
👇 Share your experience in the comments.
P.S. If you’re wondering where AI can create the biggest impact in your business, get a free AI diagnostic and join the 10xme newsletter at 10xme.biz.
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30 Backend Engineering Concepts every developer should know.
Grab the Backend Engineering Ebook: codewithdhanian.gumroad.com/…
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Dvz | Python Architect@PythonDvzJun 15
Viet Nam
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How long does it take to learn popular programming skills 🔥
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Dvz | Python Architect@PythonDvzJun 16
Viet Nam
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🐍 Comparison operators in Python are essential for making decisions in our programmes. Learning how to use ==, !=, >, <, >= and <= will enable you to create smarter conditions and develop more efficient applications.
#Python #Programming #Coding #PythonTips #WebDevelopment
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Dvz | Python Architect@PythonDvzJun 14
Viet Nam
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If Machine Learning and Deep Learning are both part of AI, why do people keep talking about them like they're completely different things?
🧠 Machine Learning is like teaching a student with notes, examples, and clear instructions.
🧠 Deep Learning is like giving that student millions of examples and letting them figure out the patterns on their own.
Some key differences:
✅ Machine Learning works great with structured data like spreadsheets and business records.
✅ It needs less data and less computing power.
✅ It's usually easier to understand why it made a decision.
On the other hand
🚀 Deep Learning shines when dealing with images, videos, text, and speech.
🚀 It can automatically learn important features from data.
🚀 It often delivers better results for complex problems, but it needs a lot more data and computing power.
Think of it this way:
📊 Credit scoring? Machine Learning.
📸 Face recognition? Deep Learning.
🎯 Customer segmentation? Machine Learning.
🎙️ Speech recognition? Deep Learning.
The biggest mistake I see people make is assuming Deep Learning is always better.
It's not.
The best choice depends on your data, your resources, and the problem you're trying to solve.
Sometimes the simpler model wins.
P. S. Which one have you worked with before: Machine Learning, Deep Learning, or you're just getting started with AI?
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🐧 Day 10/30 — #Linux
Linux is a multi-user operating system designed to allow multiple people and services to work securely on the same machine.
Managing users properly is one of the most important responsibilities of a Linux administrator.
Linux User Management – Adding, Modifying, and Deleting Users
Every user in Linux has a unique username, user ID (UID), home directory, and set of permissions.
Essential User Management Commands:
→ useradd
→ passwd
→ usermod
→ userdel
→ id
→ whoami
Adding a User
→ sudo useradd john
Creates a new user named john.
To set a password:
→ sudo passwd john
Linux will prompt you to create and confirm a password.
Viewing User Information
→ id john
Displays the user's UID, GID, and group memberships.
→ whoami
Displays the currently logged-in user.
Modifying a User
→ sudo usermod -l johnny john
Changes the username from john to johnny.
→ sudo usermod -aG developers john
Adds the user john to the developers group.
Deleting a User
→ sudo userdel john
Removes the user account.
→ sudo userdel -r john
Removes the user account and deletes the user's home directory.
Understanding User Groups
Groups simplify permission management by allowing multiple users to share access to files and resources.
Examples:
→ developers
→ admins
→ docker
Instead of assigning permissions individually, administrators can manage access through groups.
Why User Management Matters:
→ Improve system security
→ Control resource access
→ Manage team environments
→ Protect sensitive files
→ Administer Linux servers effectively
Mastering user management is a foundational skill for Linux administrators, DevOps engineers, cloud engineers, and cybersecurity professionals.
🐧 Grab Linux Ebook: codewithdhanian.gumroad.com/…
#Linux #LinuxTutorial #LinuxCommands #UserManagement #SystemAdministration #DevOps #CloudComputing #CyberSecurity #OpenSource #100DaysOfCode
🐧 Day 9/30 — #Linux
One of Linux's greatest strengths is the ability to connect commands together and control where data flows.
Instead of manually copying output between programs, Linux allows commands to communicate seamlessly.
Linux Redirection and Pipes – stdin, stdout, stderr and |
Every Linux command works with three standard data streams:
→ stdin (Standard Input)
→ stdout (Standard Output)
→ stderr (Standard Error)
Understanding these streams is essential for automation, scripting, and system administration.
stdin (Standard Input)
stdin is the input a command receives.
Example:
→ sort < names.txt
The contents of names.txt are provided as input to the sort command.
stdout (Standard Output)
stdout is the normal output generated by a command.
Example:
→ ls > files.txt
Saves the output of ls into files.txt instead of displaying it on the screen.
stderr (Standard Error)
stderr contains error messages generated by commands.
Example:
→ ls missingfile 2> errors.txt
Saves error messages to errors.txt.
Redirection Operators
→ > = Overwrite output to a file
→ >> = Append output to a file
→ < = Read input from a file
→ 2> = Redirect error output
Examples:
→ echo "Hello Linux" > message.txt
Creates a file and writes text into it.
→ echo "More text" >> message.txt
Appends text to an existing file.
Pipes (|)
The pipe operator (|) sends the output of one command directly as input to another command.
Example:
→ ls | grep ".txt"
Lists only text files.
→ ps aux | grep nginx
Finds running nginx processes.
→ cat users.txt | sort
Sorts the contents of a file.
Why Redirection and Pipes Matter:
→ Automate repetitive tasks
→ Combine multiple commands efficiently
→ Filter and process large amounts of data
→ Build powerful shell scripts
→ Troubleshoot systems more effectively
Mastering redirection and pipes is a major step toward becoming productive in the Linux command line environment.
🐧 Grab Linux Ebook: codewithdhanian.gumroad.com/…
#Linux #LinuxTutorial #LinuxCommands #ShellScripting #Terminal #DevOps #SystemAdministration #OpenSource #Programming #100DaysOfCode
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Day 20/100 of Learning System Design.
Design a Web Crawler – Scalable Scraping and Storage.
Grab the System Design Ebook: codewithdhanian.gumroad.com/…
Day 19/100 of Learning System Design.
Design a URL Shortener – TinyURL System Deep Dive.
Grab the System Design Ebook: codewithdhanian.gumroad.com/…
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Dvz | Python Architect@PythonDvzJun 10
Viet Nam
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🚀 Think API Testing is just sending requests?
Think again. 👇
✅ Functional Testing
✅ Load Testing
✅ Security Testing
✅ Performance Testing
✅ Reliability Testing
✅ Validation Testing
✅ UI Testing
✅ End-to-End Testing
A single API bug can break your entire application, expose sensitive data, or slow down your system.
Master API Testing before it becomes your next production nightmare. 🔥
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Dvz | Python Architect@PythonDvzJun 9
Viet Nam
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Most people learn SQL to clear interviews💯👇
The best engineers learn SQL to build scalable systems.
There's a huge difference between writing queries... and understanding what actually happens behind them.
Over time, I realized SQL is not just:
SELECT * FROM table
Joins and filters
Solving LeetCode DB problems
It's about:
Designing schemas that scale
Understanding execution plans
Optimizing slow queries
Managing transactions & concurrency
Scaling databases with replication & sharding
Building production-grade data systems
This roadmap covers the journey from:
Query basics
Advanced querying
Database design
Performance optimization
Transactions
Distributed SQL
Production systems
Modern data stack
If you're into:
Backend Engineering
Data Engineering
System Design
Analytics Engineering
Database Optimization
...then mastering SQL is non-negotiable.
One underrated skill in tech:
The ability to think in data models, not just code.
Save this roadmap for later - it's one of the most complete SQL learning paths I've come across.
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Dvz | Python Architect@PythonDvzJun 9
Viet Nam
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🧠 Most developers spend hours choosing a programming language...
But almost nobody talks about the best editor for each one. 🚀
The right IDE can make you code faster, debug easier, and become more productive every single day.
📌 Save this chart. It might save you weeks of trial and error.
#Programming #VSCode #DeveloperTools #Coding #SoftwareDevelopment
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Dvz | Python Architect@PythonDvzJun 7
Viet Nam
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The Life of a Python Developer
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Dvz | Python Architect@PythonDvzJun 8
Viet Nam
Viet NamConnected via Viet Nam App StoreAccount-level information, not a live location or per-post device.
Retrieval systems answer questions. AI Agents take actions. 🧠⚡
If you are still confusing RAG (Retrieval-Augmented Generation) with AI Agents, you are missing the shift happening in enterprise AI right now.
While both leverage Large Language Models (LLMs), their architecture, capabilities, and purposes are fundamentally different. Here is the breakdown you need to know:
🔹 RAG: The Smart Librarian 📚
Think of RAG as a hyper-efficient research assistant. It takes a user query, searches an enterprise database or document archive, finds the right context, and uses an LLM to generate a grounded, accurate answer.
Workflow: Linear and single-step (Query ➡️ Search ➡️ Generate ➡️ Answer).
Memory: Limited to the immediate context window.
Autonomy: Reactive. It only speaks when spoken to.
Best For: Enterprise search, document Q&A, and customer support chatbots.
🔸 AI Agents: The Intelligent Operator ⚙️
AI Agents don’t just find information—they execute multi-step workflows autonomously to achieve a high-level goal. They reason, plan, adapt, and use external tools.
Workflow: Dynamic and recursive loops (Goal ➡️ Plan ➡️ Use Tool ➡️ Evaluate ➡️ Repeat until done).
Memory: Persistent (remembers past actions and learns over time).
Autonomy: Proactive. It determines its own sub-tasks and calls APIs, writes code, or automates browsers.
Best For: Autonomous research, end-to-end workflow automation, and AI copilots.
The Bottom Line:
RAG is phenomenal for bridging the gap between static LLM knowledge and your private enterprise data. But if you want to automate actual business processes, orchestrate workflows, and let AI execute tasks independently, you are building an AI Agent.
#AIAgents #RAG #GenerativeAI #ArtificialIntelligence #LLM #MachineLearning
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Dvz | Python Architect@PythonDvzJun 6
Viet Nam
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HTTP Types Explained!
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Dvz | Python Architect@PythonDvzJun 7
Viet Nam
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Different Ways to Declare Variables in Programming Languages 🚀💻
Every programming language has its own way of declaring variables 👨💻✨
This cheat sheet covers variable declaration styles in:
✔ Python
✔ JavaScript
✔ Java
✔ C / C++
✔ C#
✔ Go
✔ TypeScript
Learn the difference between var, let, const, type declarations, and modern best practices in one simple guide 🔥
Perfect for beginners, students, and developers switching between languages 📚
Save this post for later 📌
Which programming language did you start with? 👇
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Dvz | Python Architect@PythonDvzJun 4
Viet Nam
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𝐓𝐡𝐞 𝐟𝐚𝐬𝐭𝐞𝐬𝐭 𝐰𝐚𝐲 𝐭𝐨 𝐤𝐢𝐥𝐥 𝐚𝐧 𝐀𝐈 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐢𝐬 𝐭𝐨 𝐢𝐠𝐧𝐨𝐫𝐞 𝐭𝐨𝐤𝐞𝐧𝐨𝐦𝐢𝐜𝐬.
A working AI feature with a runaway bill is a closed AI feature. The teams shipping sustainably are not just better at prompting. They are disciplined about cost at every layer.
12 LLM cost optimization techniques worth knowing:
1. Choose the Right Model
• Use the smallest, cheapest model that meets quality needs
• Evaluate model families for price-performance trade-offs
2. Reduce Input Tokens
• Remove unnecessary examples, repeated text, and extra prompt details
• Write concise instructions and compress long context
3. Limit Output Tokens
• Set strict token limits for shorter, focused outputs
• Request bullet summaries or structured responses instead of long prose
4. Use Caching
• Cache repeated prompts and reuse responses for similar requests
• Apply embedding similarity matching to avoid regenerating identical outputs
5. RAG Done Right
• Retrieve only highly relevant context for the current request
• Keep chunks short, focused, and trimmed before passing to the model
6. Batch Requests
• Combine multiple prompts into a single API call
• Reduce request overhead and improve throughput
7. Function Calling and Structured Output
• Generate structured outputs apps can process automatically
• Use schemas or function calls instead of verbose natural explanations
8. Prompt Reuse and Templates
• Reuse proven templates across recurring tasks
• Parameterize prompts instead of rewriting similar instructions
9. Tiered / Two-Step Approach
• Use cheaper models first for filtering, drafting, or simple processing
• Send only complex cases to stronger, more expensive models
10. Monitor, Measure, Optimize
• Track token consumption, request costs, and feature-level AI spend
• Identify expensive prompts and optimize them regularly
11. Use the Right Pricing and Providers
• Compare provider pricing before selecting APIs for production
• Use discounts or reserved pricing plans whenever available
12. Optimize Embeddings Usage
• Batch embedding generation to reduce API overhead
• Remove duplicate or highly similar content before creating embeddings
The takeaway
Cost optimization is not a one-time exercise. It is a discipline applied at every layer: model choice, prompt design, retrieval, caching, batching, and monitoring. The orgs winning with AI in 2026 treat tokens like compute and architect accordingly.
he teams winning AI in 2026 don't compete on prompts. They compete on cost discipline.
Which technique has saved your team the most - caching, batching, or routing?
#RAG #AIEngineering #LLMSystems #LLM




























