Lazar Nikolov
@nikolovlazar.com
Software Engineer & Educator. Works @sentry.io. Check out my YouTube: youtube.com/@nikolovlazar. Join my Discord creatures.sh.
I'm throwing an MCP meetup / mini-hack-thingy next week in Toronto. Free entry, free food, free mind-blowage. Come on by, and grab your laptop!
Hi Toronto 👋
Come hang out with @getsentry and @blockopensource for an evening of AI agent hacking and free food!
RSVP at the link below lu.ma/ruit2le5
Come hang out with @getsentry and @blockopensource for an evening of AI agent hacking and free food!
RSVP at the link below lu.ma/ruit2le5
Toronto AI Agent HackNight with MCP ft. Codename Goose & Sentry · Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work. Let's explore this together! Join…
lu.ma
June 17, 2025 at 3:56 PM
I'm throwing an MCP meetup / mini-hack-thingy next week in Toronto. Free entry, free food, free mind-blowage. Come on by, and grab your laptop!
Reposted by Lazar Nikolov
Calling all Canada Geese 🇨🇦
We’re flying into Toronto for Tech Week.
Come learn how folks are building with Model Context Protocol and hack alongside Goose, a local-first, open source AI agent.
In collaboration with @sentry.io
Save your spot: lu.ma/ruit2le5
We’re flying into Toronto for Tech Week.
Come learn how folks are building with Model Context Protocol and hack alongside Goose, a local-first, open source AI agent.
In collaboration with @sentry.io
Save your spot: lu.ma/ruit2le5
Toronto AI Agent HackNight with MCP ft. Codename Goose & Sentry · Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work.
Let's explore this together! Join…
lu.ma
June 11, 2025 at 4:30 PM
Calling all Canada Geese 🇨🇦
We’re flying into Toronto for Tech Week.
Come learn how folks are building with Model Context Protocol and hack alongside Goose, a local-first, open source AI agent.
In collaboration with @sentry.io
Save your spot: lu.ma/ruit2le5
We’re flying into Toronto for Tech Week.
Come learn how folks are building with Model Context Protocol and hack alongside Goose, a local-first, open source AI agent.
In collaboration with @sentry.io
Save your spot: lu.ma/ruit2le5
Reposted by Lazar Nikolov
@nikolovlazar.com shows us how to debug these errors anyway—piecing together the missing context across systems so you can actually fix the problem instead of just guessing.
Curious? Check out the video to see how we make it a bit less painful youtu.be/wb4Km8pCZRY
Curious? Check out the video to see how we make it a bit less painful youtu.be/wb4Km8pCZRY
Debugging Errors in Background Jobs
YouTube video by Sentry
youtu.be
May 29, 2025 at 7:05 PM
@nikolovlazar.com shows us how to debug these errors anyway—piecing together the missing context across systems so you can actually fix the problem instead of just guessing.
Curious? Check out the video to see how we make it a bit less painful youtu.be/wb4Km8pCZRY
Curious? Check out the video to see how we make it a bit less painful youtu.be/wb4Km8pCZRY
Reposted by Lazar Nikolov
Today, @nikolovlazar.com shows you how to use custom attributes to trace the end-to-end workflows you care about.
Check it 👇 www.youtube.com/watch?v=PooH...
Check it 👇 www.youtube.com/watch?v=PooH...
Monitoring Critical Experiences
YouTube video by Sentry
www.youtube.com
May 22, 2025 at 1:36 PM
Today, @nikolovlazar.com shows you how to use custom attributes to trace the end-to-end workflows you care about.
Check it 👇 www.youtube.com/watch?v=PooH...
Check it 👇 www.youtube.com/watch?v=PooH...
Reposted by Lazar Nikolov
Remember when that SELECT * felt reasonable?
Watch @nikolovlazar.com show you how to track down rogue DB queries quietly dragging down your response times in our this month's first Breakpoint episode.
youtu.be/m9veTPLYqBM
Watch @nikolovlazar.com show you how to track down rogue DB queries quietly dragging down your response times in our this month's first Breakpoint episode.
youtu.be/m9veTPLYqBM
Monitoring Slow Database Queries
YouTube video by Sentry
youtu.be
April 15, 2025 at 6:30 PM
Remember when that SELECT * felt reasonable?
Watch @nikolovlazar.com show you how to track down rogue DB queries quietly dragging down your response times in our this month's first Breakpoint episode.
youtu.be/m9veTPLYqBM
Watch @nikolovlazar.com show you how to track down rogue DB queries quietly dragging down your response times in our this month's first Breakpoint episode.
youtu.be/m9veTPLYqBM
Reposted by Lazar Nikolov
@nikolovlazar.com will be hosting a live workshop on Wednesday the 12th at 9 AM PT. Think of it as a "build it live" event so bring your computer and questions.
sentry.io/resources/in...
sentry.io/resources/in...
Instrument, monitor, fix: a hands-on debugging session
Join Lazar for a hands-on session where you’ll build it, watch it break, debug it, and go from “no idea what’s wrong” to fixing issues—all in one go.
sentry.io
March 10, 2025 at 9:20 PM
@nikolovlazar.com will be hosting a live workshop on Wednesday the 12th at 9 AM PT. Think of it as a "build it live" event so bring your computer and questions.
sentry.io/resources/in...
sentry.io/resources/in...
Got my video featured in this week’s WebPerformance Report!
🎉 WebPerformance Report Week #09 is out! ✅
🔍 Ready for Week #10? Don’t miss out!
Join our growing community of #WebPerformance enthusiasts and subscribe today:
👉 webperformancereport.com
#webperf #corewebvitals #ux #seo
🔍 Ready for Week #10? Don’t miss out!
Join our growing community of #WebPerformance enthusiasts and subscribe today:
👉 webperformancereport.com
#webperf #corewebvitals #ux #seo
March 2, 2025 at 1:13 PM
Got my video featured in this week’s WebPerformance Report!
Next.js-like routing in TanStack Start
YouTube video by Lazar Nikolov
www.youtube.com
February 5, 2025 at 11:50 PM
hey friends! I’m live working on my full stack TanStack Start app. Let’s hang out! youtube.com/live/ctIiE60...
TanStack Start Trivia App
YouTube video by Lazar Nikolov
youtube.com
February 5, 2025 at 2:02 PM
hey friends! I’m live working on my full stack TanStack Start app. Let’s hang out! youtube.com/live/ctIiE60...
Just finished @aaronfrancis.com’s screencasting.com and it inspired me to change up my setup for the millionth time. Also, I wish this course existed years ago. I’ve had to learn most of the things Aaron teach by trial an error, but also learned a few new things. screencasting.com is worth it!
February 2, 2025 at 6:54 PM
Just finished @aaronfrancis.com’s screencasting.com and it inspired me to change up my setup for the millionth time. Also, I wish this course existed years ago. I’ve had to learn most of the things Aaron teach by trial an error, but also learned a few new things. screencasting.com is worth it!
Going live! We’ve got Chapter 3 of Fundamentals of Software Architecture today and we’ll continue building our own Redis in TypeScript. Jump in! youtube.com/live/xnEl84v...
Breakpoint - Fundamentals of Software Architecture + CodeCrafters.io Redis
YouTube video by Lazar Nikolov
youtube.com
January 22, 2025 at 2:01 PM
Going live! We’ve got Chapter 3 of Fundamentals of Software Architecture today and we’ll continue building our own Redis in TypeScript. Jump in! youtube.com/live/xnEl84v...
I’m starting a new app - trivia app built with TanStack Router, Supabase, and shadcn/ui. This trivia app is going to be used by attendees of in-person meetups. Let’s hang! youtube.com/live/AJSerCS...
TanStack Start Trivia App
YouTube video by Lazar Nikolov
youtube.com
January 20, 2025 at 2:03 PM
I’m starting a new app - trivia app built with TanStack Router, Supabase, and shadcn/ui. This trivia app is going to be used by attendees of in-person meetups. Let’s hang! youtube.com/live/AJSerCS...
Just published the Chapter 2 summary - "Architectural Thinking". We define what "architectural thinking" means, Architecture vs Design, the importance of having a technical breadth, analyzing trade-offs, and understanding business drivers.
youtu.be/zMfc58hHwA4
youtu.be/zMfc58hHwA4
January 15, 2025 at 5:52 PM
Just published the Chapter 2 summary - "Architectural Thinking". We define what "architectural thinking" means, Architecture vs Design, the importance of having a technical breadth, analyzing trade-offs, and understanding business drivers.
youtu.be/zMfc58hHwA4
youtu.be/zMfc58hHwA4
Continuing with Chapter 2 - Architectural Thinking of “Fundamentals of Software Architecture”, and then continuing with codecrafters.io. Let’s hang out! youtu.be/3KDNIPYCSo8
Breakpoint - Fundamentals of Software Architecture + CodeCrafters.io Redis
YouTube video by Lazar Nikolov
youtu.be
January 15, 2025 at 2:03 PM
Continuing with Chapter 2 - Architectural Thinking of “Fundamentals of Software Architecture”, and then continuing with codecrafters.io. Let’s hang out! youtu.be/3KDNIPYCSo8
I'm starting a Book Club! Every Wednesday at 9 AM EST on my YouTube channel me and my community are going to summarize engineering books, starting with "Fundamentals of Software Architecture" by Mark Richards and Neil Ford. See you next Wednesday!
youtu.be/WXIuQQGrUsQ
youtu.be/WXIuQQGrUsQ
Chapter 1: Fundamentals of Software Architecture | Book Club
YouTube video by Lazar Nikolov
youtu.be
January 8, 2025 at 10:56 PM
I'm starting a Book Club! Every Wednesday at 9 AM EST on my YouTube channel me and my community are going to summarize engineering books, starting with "Fundamentals of Software Architecture" by Mark Richards and Neil Ford. See you next Wednesday!
youtu.be/WXIuQQGrUsQ
youtu.be/WXIuQQGrUsQ
Reposted by Lazar Nikolov
Goodbye kitty 😿 Configuring WezTerm from scratch!
YouTube video by Lazar Nikolov
youtu.be
December 24, 2024 at 2:01 PM
Python / DDD Live on YouTube. Let's hang out! youtu.be/p_qMfSlxKUI
E11: Building AI-powered Resume App
YouTube video by Lazar Nikolov
youtu.be
December 20, 2024 at 3:04 PM
Python / DDD Live on YouTube. Let's hang out! youtu.be/p_qMfSlxKUI
Introducing "Breakpoint" - my new streaming program. Live right now. Jump in! youtu.be/-yFPbMlksBM
Introducing New Streaming Program "Breakpoint"
YouTube video by Lazar Nikolov
youtu.be
December 18, 2024 at 2:02 PM
Introducing "Breakpoint" - my new streaming program. Live right now. Jump in! youtu.be/-yFPbMlksBM
I just posted this in my Discord creatures.sh. I'm thinking of diversifying my live streams - one day a week where we continue building projects, and another day where we check out links, explore libraries, read books! LMK what you think of this idea, and which book we should start with.
December 17, 2024 at 1:19 AM
I just posted this in my Discord creatures.sh. I'm thinking of diversifying my live streams - one day a week where we continue building projects, and another day where we check out links, explore libraries, read books! LMK what you think of this idea, and which book we should start with.
DDD / Python / Let's go! youtu.be/hS1OMYpjssc
E10: Building AI-powered Resume App
YouTube video by Lazar Nikolov
youtu.be
December 16, 2024 at 2:12 PM
DDD / Python / Let's go! youtu.be/hS1OMYpjssc
Hey friends! I need your help.
I’m interested to hear about how you’re experiencing my live streams. I’m thinking the current pace is pretty slow, so I’m open to suggestions on how I can improve it.
(continuing below)
I’m interested to hear about how you’re experiencing my live streams. I’m thinking the current pace is pretty slow, so I’m open to suggestions on how I can improve it.
(continuing below)
December 14, 2024 at 10:08 PM
Hey friends! I need your help.
I’m interested to hear about how you’re experiencing my live streams. I’m thinking the current pace is pretty slow, so I’m open to suggestions on how I can improve it.
(continuing below)
I’m interested to hear about how you’re experiencing my live streams. I’m thinking the current pace is pretty slow, so I’m open to suggestions on how I can improve it.
(continuing below)
I'm live on YouTube doing DDD in Python. Let's hang out! youtu.be/Ukx-EgVME94
E9: Building AI-powered Resume App
YouTube video by Lazar Nikolov
youtu.be
December 13, 2024 at 2:01 PM
I'm live on YouTube doing DDD in Python. Let's hang out! youtu.be/Ukx-EgVME94
Reposted by Lazar Nikolov
OK. So, here we go! #bskycourse is officially live! Originally published on Twitter I am once again glad to welcome you all, future developers, curious lurkers, and fellow engineers. This first course is going to be about a very cool language called Go (or golang for short).
November 18, 2024 at 11:04 AM
OK. So, here we go! #bskycourse is officially live! Originally published on Twitter I am once again glad to welcome you all, future developers, curious lurkers, and fellow engineers. This first course is going to be about a very cool language called Go (or golang for short).
Reposted by Lazar Nikolov
I've been working with @guthals.com to define a content framework that is optimised for DevRel success at @sentry.io, which started with an exercise to categorise existing content.
Bonus: I've created a spreadsheet template you can use to do the classification exercise with your own content.
Bonus: I've created a spreadsheet template you can use to do the classification exercise with your own content.
Stop writing SEO-first! These are the 4 types of DevRel content (plus their Leading Themes)
Discover how to classify DevRel content to understand what works for your team. Learn about 4 content types, their goals, and leading themes.
whitep4nth3r.com
December 11, 2024 at 9:50 AM
I've been working with @guthals.com to define a content framework that is optimised for DevRel success at @sentry.io, which started with an exercise to categorise existing content.
Bonus: I've created a spreadsheet template you can use to do the classification exercise with your own content.
Bonus: I've created a spreadsheet template you can use to do the classification exercise with your own content.