Full time CEO @t3dotcodes & @t3dotchat. Part time YouTuber, investor, and developer
San Francisco, CA
Joined October 2016
- Tweets69.5K
- Following4.3K
- Followers41K
- Likes391K
Theo - t3.gg retweeted
Kept going, typing in the composer now does ~75% less work, streaming replies no longer re-render the whole chat, and switching threads is ~30% lighter.
Duo launch is closing in, will we have to freeze or will we keep going?
Theo - t3.gg retweeted
My god they're putting grok bots bot everywhere, they're now in:
- the desktop app
- the mobile app
- grok dot com
- x dot com dms
- teslas
- cursor
In the future I would also like my bots to be accessible from:
- a really good apple watch app
- my washer/dryer combo unit
- my fridge
- my lumix s5iix camera
- a microchip in Theo's brain
- my subaru crosstrek
- my nintendo wii u and switch 2 (I don't want it on switch 1)
- my steam deck
- the youtube creator dashboard
Theo - t3.gg retweeted
i respect that you're seeing this much traffic, and not building a massive repository of training data, or aiming get a billion dollar acquisition by some lab
not everyone would make something like t3 just for the love of the game
Theo - t3.gg retweeted
Just realized T3 Code can automatically update remote servers, too. If you’ve ever had to handle those updates yourself, you’ll understand why that matters.
We just shipped an updated T3 Code Stable release with over 1,400 changes 🤯
Quick highlight reel of my favorites:
- Massive perf wins on desktop and mobile
- Add a project to another machine from the "Run on" menu
- EAS Simulator remote hosts for iOS dev
- PR diffs now show code vs tests vs docs at a glance
- Idle Claude threads compact early so the cache stays warm (beta)
- Mobile got a big native pass. It finally feels native
- `t3 doctor` can reclaim database space
- `t3 connect` now checks your machine is reachable, and errors say how to fix them
- Webhook tasks got filters and dedupe
- Skill discovery is much more reliable
- Tons of Windows, terminal, and scroll fixes
Least favorite: I caved, LaTeX renders on web and mobile
Also heads up, we're getting a bit more experimental with how we treat Nightly, so now would be a good time to move back to stable :)
Theo - t3.gg retweeted
realizing theo shipped something useful that i'm going to have to install
We just shipped an updated T3 Code Stable release with over 1,400 changes 🤯
Quick highlight reel of my favorites:
- Massive perf wins on desktop and mobile
- Add a project to another machine from the "Run on" menu
- EAS Simulator remote hosts for iOS dev
- PR diffs now show code vs tests vs docs at a glance
- Idle Claude threads compact early so the cache stays warm (beta)
- Mobile got a big native pass. It finally feels native
- `t3 doctor` can reclaim database space
- `t3 connect` now checks your machine is reachable, and errors say how to fix them
- Webhook tasks got filters and dedupe
- Skill discovery is much more reliable
- Tons of Windows, terminal, and scroll fixes
Least favorite: I caved, LaTeX renders on web and mobile
Also heads up, we're getting a bit more experimental with how we treat Nightly, so now would be a good time to move back to stable :)
Theo - t3.gg retweeted
We're starting to see some agentic Rust forks (or alternative implementations) focused on iteration speed.
More-so than the specific projects, I'm interested in the ideas being explored (and how they could evolve upstream), so wanted to collate a few here...
Theo - t3.gg retweeted
W
Introducing tsrs: a Rust port of the TypeScript compiler 🦀
We are not forking TypeScript!
◆ In close collaborating with the TypeScript team
◆ Up to 8x faster than TS 7.0 & ~70% less memory
◆ Runs in WASM, so it works in your browser & on Workers
◆ Soon part of the Oxc toolchain
npx tsrs
blog.cloudflare.com/typescri…
Theo - t3.gg retweeted
Let me double down on this, because this is my exact business model
1. Get the job of your dreams with my free content
2. Get the job of your dreams to pay for my paid content
Do not "go into debt if you have to". Just use the crap out of my free stuff.
Obligatory call out:
Yes, the course is expensive. That's because we want your company/boss to pay for it.
If you can't expense it, please do NOT buy this course if you aren't making Real Dev Money™.
It's super focused on "how to apply your existing engineering knowledge to building with AI". Genuinely not that useful if you're not a full time dev yet.
Seriously: DO NOT PUT YOURSELF IN A BAD FINANCIAL POSITION TO TAKE THIS COURSE. My free YouTube videos will help you more with getting your first job, I promise 🙏
Theo - t3.gg retweeted
This is the video.
If you're creating crazy AI workflows and trying to figure out the best prompts to get some crazy output.
Watch this.
Prompting isn't some big brain engineering task. It's a language and steering problem.
Theo - t3.gg retweeted
Theo wrote that he feels sick about charging $1,300.
Adam wrote that he locks himself away until the job is done.
Joel wrote he was f'n nervous to pitch.
I'm the one who set the price, asked Joel and Adam if they'll do it. So let me be real too.
I'm in education for 20+ years, my whole adult and professional life. Over the years we've trained over 400 000 people, helping build the culture of value, skills, and curiosity in Poland.
In many ways education feels like giving back to the community that shaped me. The thing I learned is that the price is not where the trust is won or lost. It's won in week two, when someone realizes it was worth it, or lost in week two, when they realize it wasn't.
So here's what the $1,300 pays for
Five amazing Authors each one working on their own projects, pushing the limits of practical ai in development. @kentcdodds @techgirl1908 @johnlindquist @theo @_overment were all brave enough to trust us and we'll always put their reputation above ours.
A team of 20+ that spent months building a program that runs inside your own harness, because we wanted you working, not watching.
A few things we built that I've never seen in a course before because pushing limits is fun.
Who should buy it: a developer whose company pays for training. A senior developer who already works with agents every day and wants the next level, paid from money that isn't rent. That's who we built this for.
Who shouldn't: the person Theo described. If you're early, scared of falling behind, and this would come from savings, don't. We are building a vast library of free resources: drops, skills, podcasts. The assessment is free. The Kickoff on Monday is free. Take those, stay with us we'll be shipping tons of free stuff, consider MEGA next year.
2,000+ developers are already in. It's the largest first edition we've ever run and the first global one, and I'm nervous in exactly the way Theo and Adam are: not about whether they'll come, but about whether we'll be worth it.
I think it will. Let's find out together.
And if you're not joining, wish us luck anyway ✌️
"I trust him with my life."
I'm the guy responsible for the concept, outline and core content of the upcoming cohort.
over the past three and a half years, my courses have reached 16k+ developers and thousands of digital creators and business owners in Poland. 4.5k developers joined the last edition alone.
after that, Greg and I sat down with Joel and decided to make something together. that's how the idea of MEGA was born.
at the same time, we knew we couldn't make it happen alone. or maybe we could, but we didn't want to. so we reached out to the best people we could think of and told them about MEGA.
now, you need to know that here in Poland, people know me. they know what to expect from my projects, and many of them have been with me since the very first one.
they trust me, and I don't want to let them down.
and yet, I never know if they find enough value in my work, or if they enjoy what they get. so every single time, I lock myself away and put my whole heart into it until the job is done.
but this time there's something more. I feel responsible not only to the people who know me, but also to Theo, Angie, Kent, John, Joel, Greg, our entire team, and everyone who trusts us enough to join the first edition of MEGA.
today, I have no idea what the outcome will be. what I do know is that we're doing our best to build something we've always wanted to build. something that will inspire all of us to become even better engineers and humans... to become MEGA developers.
lastly, I agree with Theo.
don't buy this course.
get your boss to buy it.
and whether or not you join us,
wish us luck.
Theo - t3.gg retweeted
This is the real Theo btw. If you stop for a second and actually engage with what the says and does regardless of the stupid YouTube persona - sorry dude - he’s actually a decent human being and will go out of his way to actually bring value and help
Can I be real for a sec? I'm super nervous about this launch. It's something I never thought I would do, and I want to be as transparent as possible.
This course is $1,300. You should not buy it. Let me explain.
I've done YouTube for over 5 years now. I've never done a paid course of any form before. I have worked hard to keep all of my content freely available.
I'm lucky to have found so many awesome companies that will sponsor short sections of my videos, enabling me to employ an incredible team without compromising my content.
I have always hated the idea of charging my viewers. If I can't convince a company to cover our costs, that's my failure, and I don't like putting that failure on my audience.
On October 26th, my first-ever paid course with @megadevhq goes live. It's $1300 a seat. That's really expensive.
I keep imagining a scenario and it makes me feel sick. I think of a young, excited dev who's recently gotten into my content. They're scared of falling behind, so they cut their expenses and save up the money, because they believe my course might be the key to getting a real dev job.
Even now as I type this, I feel my heart rate increasing and my stomach flipping over itself. The thought of anyone putting themselves in a harder financial position, all because of me?
This might actually be my biggest fear.
I don't want to sell promises. I don't want people paying me for hope.
So why did I do this course with Mega?
Two reasons: the people and the content.
I was hit up by Joel about this course late last year. I trust him with my life. Even then, it wouldn't have been enough to convince me.
Then I learned the other instructors who would be involved. Kent, Angie and John. All three were fundamental in my growth as an engineer. Getting to work with all of them was far too exciting. Made it really hard to say no.
If I had nothing unique to say, I still would have said no. I'm incredibly busy as-is, and I'm running low on space to even show you guys all the stuff I do.
What pushed me over the line was the realization that there is so much I want to say that doesn't fit in a YouTube video.
I just did a video about "prompting better". It's a deep dive on my real world workflows and how I think about building with AI. The only way I could get people to watch it was clickbaiting the title, "your prompts suck".
What if I wasn't bound by clickability? What if I didn't have to focus on being entertaining for the whole video runtime? What if I was freed from the constrains of making content for the 500,000+ people who watch my videos?
I love YouTube. I love my audience. I love the videos I make. But I'd also love to do a multi-part deep dive on "building with AI in real world code bases" that I know would bomb on YouTube.
That's what I filmed for Mega. I'm so proud of it. It's fundamentally different from any videos I've done before, but still feels like me just doing my thing.
Is it worth $1,300, though? If that $1,300 comes out of the same bank account that you pay rent with, probably not.
Is it worth $1,300 per person to a company trying to help their eng teams use AI properly at work? In my opinion, this is a bargain.
If you're paying your engineers $100k a year, and this course makes them 5% more effective at their jobs, that's a 4x ROI.
What I'm trying to say is simple: Don't buy this course.
Get your boss to buy it.
(If you have an education budget at your job that works too. Just please don't pay for this yourself. Seriously.)
Sorry for the rant. If you can't tell, I'm genuinely quite nervous about this 🙃
Theo - t3.gg retweeted
i peddle (badass) courses for a living, and if you've followed theo for any length of time you know he's traditionally not a huge fan of "courses" in general
*i* was super f'n nervous to pitch him on the idea of doing a course
he insanely busy (like if you think you get how hard this man is locked in, you are not even close, it's more locked in than that), he's intensely focused, he definitely isn't going to pivot to course creator
BUT all of that is exactly why working on this with him is appealing in the first place
if you watch theo regularly you'll also know that he is hands down one of the best educators in the AI space, his videos are topical and "in the moment" but if you watch they are also deeply informative and educational (it's why i love them)
i'm stoked for this cohort and think we are lucky that it exists
but also, holy shit, that's not all
angie.
john.
kent.
yall.
a full month of soaking it up. lfg.
Can I be real for a sec? I'm super nervous about this launch. It's something I never thought I would do, and I want to be as transparent as possible.
This course is $1,300. You should not buy it. Let me explain.
I've done YouTube for over 5 years now. I've never done a paid course of any form before. I have worked hard to keep all of my content freely available.
I'm lucky to have found so many awesome companies that will sponsor short sections of my videos, enabling me to employ an incredible team without compromising my content.
I have always hated the idea of charging my viewers. If I can't convince a company to cover our costs, that's my failure, and I don't like putting that failure on my audience.
On October 26th, my first-ever paid course with @megadevhq goes live. It's $1300 a seat. That's really expensive.
I keep imagining a scenario and it makes me feel sick. I think of a young, excited dev who's recently gotten into my content. They're scared of falling behind, so they cut their expenses and save up the money, because they believe my course might be the key to getting a real dev job.
Even now as I type this, I feel my heart rate increasing and my stomach flipping over itself. The thought of anyone putting themselves in a harder financial position, all because of me?
This might actually be my biggest fear.
I don't want to sell promises. I don't want people paying me for hope.
So why did I do this course with Mega?
Two reasons: the people and the content.
I was hit up by Joel about this course late last year. I trust him with my life. Even then, it wouldn't have been enough to convince me.
Then I learned the other instructors who would be involved. Kent, Angie and John. All three were fundamental in my growth as an engineer. Getting to work with all of them was far too exciting. Made it really hard to say no.
If I had nothing unique to say, I still would have said no. I'm incredibly busy as-is, and I'm running low on space to even show you guys all the stuff I do.
What pushed me over the line was the realization that there is so much I want to say that doesn't fit in a YouTube video.
I just did a video about "prompting better". It's a deep dive on my real world workflows and how I think about building with AI. The only way I could get people to watch it was clickbaiting the title, "your prompts suck".
What if I wasn't bound by clickability? What if I didn't have to focus on being entertaining for the whole video runtime? What if I was freed from the constrains of making content for the 500,000+ people who watch my videos?
I love YouTube. I love my audience. I love the videos I make. But I'd also love to do a multi-part deep dive on "building with AI in real world code bases" that I know would bomb on YouTube.
That's what I filmed for Mega. I'm so proud of it. It's fundamentally different from any videos I've done before, but still feels like me just doing my thing.
Is it worth $1,300, though? If that $1,300 comes out of the same bank account that you pay rent with, probably not.
Is it worth $1,300 per person to a company trying to help their eng teams use AI properly at work? In my opinion, this is a bargain.
If you're paying your engineers $100k a year, and this course makes them 5% more effective at their jobs, that's a 4x ROI.
What I'm trying to say is simple: Don't buy this course.
Get your boss to buy it.
(If you have an education budget at your job that works too. Just please don't pay for this yourself. Seriously.)
Sorry for the rant. If you can't tell, I'm genuinely quite nervous about this 🙃
Theo - t3.gg retweeted
this is also why we're working with @theo
you don't hear things like this from course authors
THE ATTITUDE 🙏🙏🙏
Obligatory call out:
Yes, the course is expensive. That's because we want your company/boss to pay for it.
If you can't expense it, please do NOT buy this course if you aren't making Real Dev Money™.
It's super focused on "how to apply your existing engineering knowledge to building with AI". Genuinely not that useful if you're not a full time dev yet.
Seriously: DO NOT PUT YOURSELF IN A BAD FINANCIAL POSITION TO TAKE THIS COURSE. My free YouTube videos will help you more with getting your first job, I promise 🙏
Theo - t3.gg retweeted
So well said. Get your boss to buy you a ticket to Mega. We'll see you next week.
Can I be real for a sec? I'm super nervous about this launch. It's something I never thought I would do, and I want to be as transparent as possible.
This course is $1,300. You should not buy it. Let me explain.
I've done YouTube for over 5 years now. I've never done a paid course of any form before. I have worked hard to keep all of my content freely available.
I'm lucky to have found so many awesome companies that will sponsor short sections of my videos, enabling me to employ an incredible team without compromising my content.
I have always hated the idea of charging my viewers. If I can't convince a company to cover our costs, that's my failure, and I don't like putting that failure on my audience.
On October 26th, my first-ever paid course with @megadevhq goes live. It's $1300 a seat. That's really expensive.
I keep imagining a scenario and it makes me feel sick. I think of a young, excited dev who's recently gotten into my content. They're scared of falling behind, so they cut their expenses and save up the money, because they believe my course might be the key to getting a real dev job.
Even now as I type this, I feel my heart rate increasing and my stomach flipping over itself. The thought of anyone putting themselves in a harder financial position, all because of me?
This might actually be my biggest fear.
I don't want to sell promises. I don't want people paying me for hope.
So why did I do this course with Mega?
Two reasons: the people and the content.
I was hit up by Joel about this course late last year. I trust him with my life. Even then, it wouldn't have been enough to convince me.
Then I learned the other instructors who would be involved. Kent, Angie and John. All three were fundamental in my growth as an engineer. Getting to work with all of them was far too exciting. Made it really hard to say no.
If I had nothing unique to say, I still would have said no. I'm incredibly busy as-is, and I'm running low on space to even show you guys all the stuff I do.
What pushed me over the line was the realization that there is so much I want to say that doesn't fit in a YouTube video.
I just did a video about "prompting better". It's a deep dive on my real world workflows and how I think about building with AI. The only way I could get people to watch it was clickbaiting the title, "your prompts suck".
What if I wasn't bound by clickability? What if I didn't have to focus on being entertaining for the whole video runtime? What if I was freed from the constrains of making content for the 500,000+ people who watch my videos?
I love YouTube. I love my audience. I love the videos I make. But I'd also love to do a multi-part deep dive on "building with AI in real world code bases" that I know would bomb on YouTube.
That's what I filmed for Mega. I'm so proud of it. It's fundamentally different from any videos I've done before, but still feels like me just doing my thing.
Is it worth $1,300, though? If that $1,300 comes out of the same bank account that you pay rent with, probably not.
Is it worth $1,300 per person to a company trying to help their eng teams use AI properly at work? In my opinion, this is a bargain.
If you're paying your engineers $100k a year, and this course makes them 5% more effective at their jobs, that's a 4x ROI.
What I'm trying to say is simple: Don't buy this course.
Get your boss to buy it.
(If you have an education budget at your job that works too. Just please don't pay for this yourself. Seriously.)
Sorry for the rant. If you can't tell, I'm genuinely quite nervous about this 🙃