Tim Warner
@techtrainertim.bsky.social
Tim Warner
🌐 TechTrainerTim.com
📍 Nashville, TN, USA (Central Time Zone)
Tech educator specializing in DevOps with Microsoft Azure, GitHub Enterprise Cloud, and the Copilot generative AI ecosystem.
🌐 TechTrainerTim.com
📍 Nashville, TN, USA (Central Time Zone)
Tech educator specializing in DevOps with Microsoft Azure, GitHub Enterprise Cloud, and the Copilot generative AI ecosystem.
GitHub Copilot has multiple AI models now - GPT, Claude, Gemini - but most devs don't know that Claude Opus costs 10x more per prompt than the default models.
Just dropped a full breakdown of model selection & premium request pricing.
Watch here: youtu.be/j9A0STfMMJg
#GitHubCopilot #DevTools
Just dropped a full breakdown of model selection & premium request pricing.
Watch here: youtu.be/j9A0STfMMJg
#GitHubCopilot #DevTools
GitHub Copilot Models Explained
YouTube video by Tim Warner
youtu.be
October 25, 2025 at 6:24 PM
GitHub Copilot has multiple AI models now - GPT, Claude, Gemini - but most devs don't know that Claude Opus costs 10x more per prompt than the default models.
Just dropped a full breakdown of model selection & premium request pricing.
Watch here: youtu.be/j9A0STfMMJg
#GitHubCopilot #DevTools
Just dropped a full breakdown of model selection & premium request pricing.
Watch here: youtu.be/j9A0STfMMJg
#GitHubCopilot #DevTools
GitHub Copilot custom instructions just changed the game.
No more repeating your dev standards, security requirements, or dependencies in every prompt. I just dropped a tutorial showing exactly how to set up .instructions files at both repo-level and file-specific granularity.
youtu.be/Jt3i1a5tSbM
No more repeating your dev standards, security requirements, or dependencies in every prompt. I just dropped a tutorial showing exactly how to set up .instructions files at both repo-level and file-specific granularity.
youtu.be/Jt3i1a5tSbM
Master GitHub Copilot Custom Instructions
YouTube video by Tim Warner
youtu.be
October 24, 2025 at 4:48 PM
GitHub Copilot custom instructions just changed the game.
No more repeating your dev standards, security requirements, or dependencies in every prompt. I just dropped a tutorial showing exactly how to set up .instructions files at both repo-level and file-specific granularity.
youtu.be/Jt3i1a5tSbM
No more repeating your dev standards, security requirements, or dependencies in every prompt. I just dropped a tutorial showing exactly how to set up .instructions files at both repo-level and file-specific granularity.
youtu.be/Jt3i1a5tSbM
GitHub Copilot has TWO ways to understand your code:
#codebase → context variable (sculpts what it sees)
@workspace → chat participant (adds LLM reasoning)
Most devs use them interchangeably. They're not.
10-min breakdown: youtu.be/8GP42iEkt94
#GitHubCopilot #DevTools
#codebase → context variable (sculpts what it sees)
@workspace → chat participant (adds LLM reasoning)
Most devs use them interchangeably. They're not.
10-min breakdown: youtu.be/8GP42iEkt94
#GitHubCopilot #DevTools
GitHub Copilot Workspace Indexing: @workspace vs #codebase Explained
YouTube video by Tim Warner
youtu.be
October 23, 2025 at 4:28 PM
GitHub Copilot has TWO ways to understand your code:
#codebase → context variable (sculpts what it sees)
@workspace → chat participant (adds LLM reasoning)
Most devs use them interchangeably. They're not.
10-min breakdown: youtu.be/8GP42iEkt94
#GitHubCopilot #DevTools
#codebase → context variable (sculpts what it sees)
@workspace → chat participant (adds LLM reasoning)
Most devs use them interchangeably. They're not.
10-min breakdown: youtu.be/8GP42iEkt94
#GitHubCopilot #DevTools
Prompt files in GitHub Copilot = reusable slash commands for your standard prompts.
No more copy-pasting. Just /azure-bicep or /powershell-script and your conventions are already loaded.
youtu.be/nNiDplJqU6w
#GitHubCopilot #DevTools
No more copy-pasting. Just /azure-bicep or /powershell-script and your conventions are already loaded.
youtu.be/nNiDplJqU6w
#GitHubCopilot #DevTools
How to Use Prompt Files in GitHub Copilot VS Code
YouTube video by Tim Warner
youtu.be
October 22, 2025 at 7:42 PM
Prompt files in GitHub Copilot = reusable slash commands for your standard prompts.
No more copy-pasting. Just /azure-bicep or /powershell-script and your conventions are already loaded.
youtu.be/nNiDplJqU6w
#GitHubCopilot #DevTools
No more copy-pasting. Just /azure-bicep or /powershell-script and your conventions are already loaded.
youtu.be/nNiDplJqU6w
#GitHubCopilot #DevTools
Your Copilot agent hitting "degraded state" because you loaded 15 MCP servers at once?
Chat modes = surgical tool selection. Documentation MCPs for writing, GitHub tools for PRs, clean context for each.
Short tutorial: youtu.be/kw5GNtihCh0
#GitHubCopilot #DevProductivity
Chat modes = surgical tool selection. Documentation MCPs for writing, GitHub tools for PRs, clean context for each.
Short tutorial: youtu.be/kw5GNtihCh0
#GitHubCopilot #DevProductivity
How to Use GitHub Copilot Chat Modes in VS Code (MCP Management)
YouTube video by Tim Warner
youtu.be
October 21, 2025 at 4:41 PM
Your Copilot agent hitting "degraded state" because you loaded 15 MCP servers at once?
Chat modes = surgical tool selection. Documentation MCPs for writing, GitHub tools for PRs, clean context for each.
Short tutorial: youtu.be/kw5GNtihCh0
#GitHubCopilot #DevProductivity
Chat modes = surgical tool selection. Documentation MCPs for writing, GitHub tools for PRs, clean context for each.
Short tutorial: youtu.be/kw5GNtihCh0
#GitHubCopilot #DevProductivity
Big thanks to my friends at WFSB TV, the CBS affiliate in Hartford, Connecticut, for having me back on Great Day Connecticut! 🎥 I had a blast sharing practical, safe ways anyone can use generative AI in everyday life.
📺 Watch the segment here: www.wfsb.com/video/2025/0...
📺 Watch the segment here: www.wfsb.com/video/2025/0...
3 Ways to use AI Everyday
Author, AI Educator, and Technology Advisor Tim Warner shared 3 simple ways AI can make your life easier.
www.wfsb.com
April 2, 2025 at 6:43 PM
Big thanks to my friends at WFSB TV, the CBS affiliate in Hartford, Connecticut, for having me back on Great Day Connecticut! 🎥 I had a blast sharing practical, safe ways anyone can use generative AI in everyday life.
📺 Watch the segment here: www.wfsb.com/video/2025/0...
📺 Watch the segment here: www.wfsb.com/video/2025/0...
Hello hello again! If you support Windows Server 2025, consider checking out my brand-new Pluralsight course "Windows Server 2025 Security Essentials for IT Professionals"!
www.pluralsight.com/courses/wind...
www.pluralsight.com/courses/wind...
Windows Server 2025 Security Essentials for IT Professionals
www.pluralsight.com
April 1, 2025 at 7:04 PM
Hello hello again! If you support Windows Server 2025, consider checking out my brand-new Pluralsight course "Windows Server 2025 Security Essentials for IT Professionals"!
www.pluralsight.com/courses/wind...
www.pluralsight.com/courses/wind...
🚀 Have you explored Cline AI in Visual Studio Code? It now includes a Model Context Protocol (MCP) Servers gallery. This is a game-changer for those building or learning about AI agents.
🧠 Cline: cline.bot
🧠 Cline: cline.bot
March 31, 2025 at 9:40 PM
🚀 Have you explored Cline AI in Visual Studio Code? It now includes a Model Context Protocol (MCP) Servers gallery. This is a game-changer for those building or learning about AI agents.
🧠 Cline: cline.bot
🧠 Cline: cline.bot
Hey friends! Please consider checking out my brand-new Pluralsight course "System Administration with Windows Server 2025." It's a short-form journey through some of Windows Servers' latest and greatest advancements. Lemme know what you think! www.pluralsight.com/courses/syst...
System Administration with Windows Server 2025
www.pluralsight.com
March 25, 2025 at 12:43 PM
Hey friends! Please consider checking out my brand-new Pluralsight course "System Administration with Windows Server 2025." It's a short-form journey through some of Windows Servers' latest and greatest advancements. Lemme know what you think! www.pluralsight.com/courses/syst...
Big thanks to the team at CBS affiliate WFSB Eyewitness News 3 in Hartford, CT, for having me on Great Day Connecticut to talk about why AI training matters for everyone—regardless of age or profession. @wfsb.com
📺 Watch the segment: AI in Everyday www.wfsb.com/video/2025/0...
📺 Watch the segment: AI in Everyday www.wfsb.com/video/2025/0...
February 22, 2025 at 12:05 PM
Big thanks to the team at CBS affiliate WFSB Eyewitness News 3 in Hartford, CT, for having me on Great Day Connecticut to talk about why AI training matters for everyone—regardless of age or profession. @wfsb.com
📺 Watch the segment: AI in Everyday www.wfsb.com/video/2025/0...
📺 Watch the segment: AI in Everyday www.wfsb.com/video/2025/0...
Hey friends! If you know someone (of any age) interested in learning more about networking fundamentals, guide 'em over to my new Pluralsight micro-course "Network Configuration: Exploring Network Equipment and Topologies"! www.pluralsight.com/courses/netw...
Network Configuration: Exploring Network Equipment and Topologies
www.pluralsight.com
February 14, 2025 at 11:38 AM
Hey friends! If you know someone (of any age) interested in learning more about networking fundamentals, guide 'em over to my new Pluralsight micro-course "Network Configuration: Exploring Network Equipment and Topologies"! www.pluralsight.com/courses/netw...
Hey, how are you? If you're a subscriber, check out my final Pluralsight course of the year: "Practical Strategies for AIOps Success." It's a tiny short-form executive briefing type of deal. Hope you enjoy! www.pluralsight.com/courses/prac...
Practical Strategies for AIOps Success
Join Tim Warner and a guest as they unpack what IT professionals need to know about AIOps, from practical implementation strategies to leveraging generative AI for transformative results.
www.pluralsight.com
December 21, 2024 at 7:22 PM
Hey, how are you? If you're a subscriber, check out my final Pluralsight course of the year: "Practical Strategies for AIOps Success." It's a tiny short-form executive briefing type of deal. Hope you enjoy! www.pluralsight.com/courses/prac...
New video! GitHub Foundations Certification Exam Review: youtu.be/AhZjxA5fj8g
GitHub Foundations Certification Review
YouTube video by Tim Warner
youtu.be
November 22, 2024 at 8:08 PM
New video! GitHub Foundations Certification Exam Review: youtu.be/AhZjxA5fj8g
📢 Considering GitHub Advanced Security (GHAS) certification? 🚀
I’ve shared my exam review to help you prepare: Watch it here.
Looking for resources? Check out my public gist: timw.info/ghasreview.
Let me know your thoughts or questions in the comments! 💬
I’ve shared my exam review to help you prepare: Watch it here.
Looking for resources? Check out my public gist: timw.info/ghasreview.
Let me know your thoughts or questions in the comments! 💬
November 15, 2024 at 8:22 PM
📢 Considering GitHub Advanced Security (GHAS) certification? 🚀
I’ve shared my exam review to help you prepare: Watch it here.
Looking for resources? Check out my public gist: timw.info/ghasreview.
Let me know your thoughts or questions in the comments! 💬
I’ve shared my exam review to help you prepare: Watch it here.
Looking for resources? Check out my public gist: timw.info/ghasreview.
Let me know your thoughts or questions in the comments! 💬
petri.com/powershell-t...
Check out my latest on Petri IT Knowledgebase! I cover PowerShell's Trim methods—perfect for making your scripts cleaner and more efficient. Essential for anyone working cross-platform with user data, paths, or logs.
Check out my latest on Petri IT Knowledgebase! I cover PowerShell's Trim methods—perfect for making your scripts cleaner and more efficient. Essential for anyone working cross-platform with user data, paths, or logs.
Mastering the PowerShell Trim Method
This guide explores the PowerShell Trim methods in detail, with real-world examples and practical tips on how to use each method effectively in PowerShell scripts.
petri.com
November 14, 2024 at 12:52 AM
petri.com/powershell-t...
Check out my latest on Petri IT Knowledgebase! I cover PowerShell's Trim methods—perfect for making your scripts cleaner and more efficient. Essential for anyone working cross-platform with user data, paths, or logs.
Check out my latest on Petri IT Knowledgebase! I cover PowerShell's Trim methods—perfect for making your scripts cleaner and more efficient. Essential for anyone working cross-platform with user data, paths, or logs.
Taking the GitHub Copilot Certification Exam? Just shared a video guide to help you prepare—covering the exam format, essential topics, and tips for tackling it with confidence.
Video: youtu.be/lNco-xDft0E
Resources: timw.info/copilotreview
Video: youtu.be/lNco-xDft0E
Resources: timw.info/copilotreview
November 11, 2024 at 11:16 PM
Taking the GitHub Copilot Certification Exam? Just shared a video guide to help you prepare—covering the exam format, essential topics, and tips for tackling it with confidence.
Video: youtu.be/lNco-xDft0E
Resources: timw.info/copilotreview
Video: youtu.be/lNco-xDft0E
Resources: timw.info/copilotreview
GitHub Copilot Extensions: Multi-IDE or VS Code API?
Watch here 👉 youtu.be/t9d7ag03oy8
Resources: timw.info/gcext
Watch here 👉 youtu.be/t9d7ag03oy8
Resources: timw.info/gcext
October 31, 2024 at 6:33 PM
GitHub Copilot Extensions: Multi-IDE or VS Code API?
Watch here 👉 youtu.be/t9d7ag03oy8
Resources: timw.info/gcext
Watch here 👉 youtu.be/t9d7ag03oy8
Resources: timw.info/gcext
🎸 Quick Fix: Get Your Lost Window Back! 🖥️
Lost a window off-screen? Here’s a 2.5-minute guide to fix it fast on any Windows version:
1️⃣ Bring the window to the foreground
2️⃣ Alt + Spacebar for control
3️⃣ Arrow keys to move it back
🔗 Watch: youtu.be/1E8w7PnoO1s
#WindowsTips #QuickFix #TechTutorial
Lost a window off-screen? Here’s a 2.5-minute guide to fix it fast on any Windows version:
1️⃣ Bring the window to the foreground
2️⃣ Alt + Spacebar for control
3️⃣ Arrow keys to move it back
🔗 Watch: youtu.be/1E8w7PnoO1s
#WindowsTips #QuickFix #TechTutorial
Quick Fix: Get Your Lost Window Back in Seconds on Any Windows Version
YouTube video by Tim Warner
youtu.be
October 9, 2024 at 2:53 PM
🎸 Quick Fix: Get Your Lost Window Back! 🖥️
Lost a window off-screen? Here’s a 2.5-minute guide to fix it fast on any Windows version:
1️⃣ Bring the window to the foreground
2️⃣ Alt + Spacebar for control
3️⃣ Arrow keys to move it back
🔗 Watch: youtu.be/1E8w7PnoO1s
#WindowsTips #QuickFix #TechTutorial
Lost a window off-screen? Here’s a 2.5-minute guide to fix it fast on any Windows version:
1️⃣ Bring the window to the foreground
2️⃣ Alt + Spacebar for control
3️⃣ Arrow keys to move it back
🔗 Watch: youtu.be/1E8w7PnoO1s
#WindowsTips #QuickFix #TechTutorial
Hands-On with GitHub Copilot Extensions! | www.youtube.com/watch?v=Z0tj...
After a long wait, I was accepted into the GitHub Copilot Extensions Limited Public Beta program. Because I'm an educator, of course I'm obligated to show you what it is and how it works.
After a long wait, I was accepted into the GitHub Copilot Extensions Limited Public Beta program. Because I'm an educator, of course I'm obligated to show you what it is and how it works.
September 17, 2024 at 4:01 PM
Hands-On with GitHub Copilot Extensions! | www.youtube.com/watch?v=Z0tj...
After a long wait, I was accepted into the GitHub Copilot Extensions Limited Public Beta program. Because I'm an educator, of course I'm obligated to show you what it is and how it works.
After a long wait, I was accepted into the GitHub Copilot Extensions Limited Public Beta program. Because I'm an educator, of course I'm obligated to show you what it is and how it works.
Bluesky now has over 10 million users, and I was #68,071!
September 17, 2024 at 4:00 PM
Bluesky now has over 10 million users, and I was #68,071!
My new Pluralsight training course is hot off the presses! (Note: Please don't ask what kind(s) of presses we use in electronic publishing. ) | Network Operations for CompTIA Network+ | www.pluralsight.com/courses/netw...
September 14, 2024 at 3:11 PM
My new Pluralsight training course is hot off the presses! (Note: Please don't ask what kind(s) of presses we use in electronic publishing. ) | Network Operations for CompTIA Network+ | www.pluralsight.com/courses/netw...
What's up? Check out my latest Pluralsight video training course! | Network Security for CompTIA Network+ (N10-009) | www.pluralsight.com/courses/netw...
September 5, 2024 at 1:41 PM
What's up? Check out my latest Pluralsight video training course! | Network Security for CompTIA Network+ (N10-009) | www.pluralsight.com/courses/netw...
How to Use GitHub Copilot Knowledge Bases | youtu.be/GsGmSequ8Eg
August 19, 2024 at 3:24 PM
How to Use GitHub Copilot Knowledge Bases | youtu.be/GsGmSequ8Eg
Tune Out With Tim: The Association, "Never My Love" (1967) | youtu.be/RPNoappkyME
Give it a listen if you want to learn what a guitar capo is and/or you care about 1960s psychedelia.
Original recording's isolated vocal track: www.youtube.com/watch?v=2SsJ...
Give it a listen if you want to learn what a guitar capo is and/or you care about 1960s psychedelia.
Original recording's isolated vocal track: www.youtube.com/watch?v=2SsJ...
- YouTube
Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
youtu.be
August 8, 2024 at 8:24 PM
Tune Out With Tim: The Association, "Never My Love" (1967) | youtu.be/RPNoappkyME
Give it a listen if you want to learn what a guitar capo is and/or you care about 1960s psychedelia.
Original recording's isolated vocal track: www.youtube.com/watch?v=2SsJ...
Give it a listen if you want to learn what a guitar capo is and/or you care about 1960s psychedelia.
Original recording's isolated vocal track: www.youtube.com/watch?v=2SsJ...
Brushes with Greatness: Scott Allen and John Savill | youtu.be/52tOA6m11Jc
Here I honor a couple professional colleagues who positively influenced my teaching and learning.
John Savill's Technical Training: www.youtube.com/@NTFAQGuy/vi...
Here I honor a couple professional colleagues who positively influenced my teaching and learning.
John Savill's Technical Training: www.youtube.com/@NTFAQGuy/vi...
August 3, 2024 at 5:46 PM
Brushes with Greatness: Scott Allen and John Savill | youtu.be/52tOA6m11Jc
Here I honor a couple professional colleagues who positively influenced my teaching and learning.
John Savill's Technical Training: www.youtube.com/@NTFAQGuy/vi...
Here I honor a couple professional colleagues who positively influenced my teaching and learning.
John Savill's Technical Training: www.youtube.com/@NTFAQGuy/vi...