Introducing Buildy. Turns any AI into a PERSONAL app builder. Apps you can use anywhere. Apps your AI can use for you. Try it with ChatGPT, Claude, Codex, or OpenClaw. Start with this one-line prompt: Read buildy[dot]so/start.md then help me create my first app.

any yc founders down for a quick mock interview?

doesn’t it feel like we have no AI UIs?

we released our react package build an ai chat w/ interactive components in a few lines of code. add it to your app with: npx tambo full-send we support: - streaming for both messages and components - message history and message threads - state manage for generated components - suggested actions based on available components - component library that uses the react package the react package is open-source. server package will be open-sourced later this year.

i joined s4 @_nightsweekends i got to the final 32. i was in @_buildspace sf2 5 things i wish someone told me when i started s4: 1. follow the process submit the weekly updates. it will be hard to do them all. don't try, just do. 2. focus on your journey don’t get distracted by other people: - going viral - making lots of money - getting highlighted by the buildspace team - etc. it’s about you making progress on your ideas. if you focus on your journey.... you will make progress. it's that simple. 3. don’t get ahead of yourself just take it one step at a time. you have to crawl before your run. it’s called “baby steps” for a reason. just focus on making small progress every week. small progress snowballs. don't focus on winning the grants or getting into sf3. just focus on making progress. they will notice you... or they won't. you can't control that. but you can make progress on your ideas either way. 4. pay-it-forward if your idea is not getting noticed by builders in S5... don’t go asking for attention. give other people some attention, encouragement, feedback, retweets, etc. but be genuine. people can tell when you aren't. someone will find you and do the same. but if they don't read #2 again. 5. enjoy it life is short. you could die tomorrow. working on your own ideas... will be stressful, frustrating, or disappointing at times. but if overall, if you aren’t having fun… you probably aren't working on the right idea. it’s that simple. the harsh truth is you probably aren’t going to become a billionaire or famous or win the nobel peace prize. so you better enjoy the journey no matter the outcome. that’s it. if you have any questions, comment below—i’ll answer what I can.

YC interview update: firstly I'm blown away by how supportive YC founders are. dozens of people offered to mock interview us. but our YC interviewers passed on us. their feedback: too early, "more like research" we have 2 weeks to prove them wrong. we are looking for 10 apps to add AI-powered UI. we will work around the clock to implement it for you. like how we just built this analytics chat for a friend in 12 hours:

Found my idea slide for S4. It's a little cringe... Drop your idea slide below and I'll give you my feedback! If I vibe with it, I may even retweet and follow. nitter.app/mrmagan_/status/168935…

finally dropping my nights & weekends slide. lost a couple of days to a cold 🤧 wdu think? cc @_buildspace @_nightsweekends @michael_milst

I just reviewed 100+ final demos from @_buildspace below are my top 8

I’m launching my first open-source project. If you are building an app like sage by @_buildspace It’s a generative UI framework for AI applications. This is the demo we created at the ai tinkerers hackathon this Saturday. I am looking for users & contributors. Drop a comment below with how you want to use it.

build a generative ui on top of mcp. render components from chat using react + zod. simple setup. just build. template below.

this "toy" from @crsamra & @avery_chiu is crazy. it's so simple yet revolutionary. here is a video of me using it. i'm still working on my toy. (coming soon) drop a video of your toy in the comments. i'll try a few and repost them later this week. cc @_buildspace @_nightsweekends

launching ai-powered component library today build AI chat into your app with: > full screen > collapsible > sidebar plus new generative components: > forms that build themselves > graphs from your data (link below) all open source. even the showcase site. coming soon: > building blocks (input, message list, thread history) > more generative components try it → npm create tambo-app demo

what a crazy week: 1. interview request from @ycombinator 2. then a rejection for F24 3. 316,000 views on x 4. our first 16+ users here is a rare peak behind the curtains of a startup:

1/ 😭 it's over @_buildspace is shutting down below are my honest thoughts about the team : farza, jeffrey, josh...👇 (don't miss the one on @FarzaTV) i spent 11 weeks building alongside them on campus

$100 in MRR 🥳

congrats to everyone who finished n&w drop your final demo below. I'll share my favorite with @FarzaTV cc @_buildspace

i got into s5. s4 changed my life. 🔥

founder video for yc fall batch only took 9 takes to not sound like robots should i share the outtakes?

introducing customhack a global hackathon over a weekend to build: build software that feels personal to your users. whatever that means to you. $5,000+ in cash prizes + thousands more in credits. join: @lingodotdev, @autumnpricing, @tambo_ai, @supabase, @resend, @firecrawl, @better_auth apply now. ✌️ p.s. we have limited spots. p.s.s. comment what you want to build, and i'll see what i can do.

i got this email it kind of changed my life. i was about to quit and get a "normie" job. not for the money... for the affirmation. weird i know right, but it's the truth. i'm not sure @FarzaTV realized what a lifeline this email was. now he's starting over. just like i did in december of 2025 no idea what he's building & not sure he knows either.... you should take your shot 👇

Tambo is now 100% open-source. 🫣 @tambo_ai is an AI orchestration framework for your React front-end. Have your AI assistant render react components in-line or update the state of components in your UI all via natural language. Add tool calls with MCP or existing fetch requests. Plus thread history, authentication, context hooks, streaming support, and more. Now all free and open-source.

What's the difference between this and google showing your likeness when I search for MKBHD?

Buildspace brings together the coolest people. cc @_buildspace

applying to ai grant with this demo do you think they will give us $250k?

i scrapped 4500+ yc companies now i'm creating a generative ui rag on top of it. check out the demo below 👇

i’m tired of waiting for google, apple, and microsoft to... create an ai-powered calendar, notes, tasks, and email in one user experience. so @michael_milst and i are building it open source & free to self-host what should we name it?

Homecoming

a few things i'm thankful for: - living in sf for 3-months (🏄‍♂️) - building my first viral app (which sent 1.5M+ msgs) - founding a 'generational' company (🐙) but what I am most thankful for are the people👇

sea —> sf who am I going to meet at irl?

i'm officially a gaudmire for S5.... no shade to my sprectreseek fam. @amit_ajwani has spoken... jk. after careful consideration, it feels...right. what house are you & why? cc @_buildspace

👋 good bye sf it’s been a blast now time to go build the future of ui.

I reviewed ~150 @_buildspace idea slides. Below are my top 10 idea slides. What they have in common simple sentence structure they are very specific. they use jargon to narrow down their idea they make me curious or solve a clear problem they often have a narrow focus what you won't see unnecessary adjectives like ultimate or revolutionary; if you have them just cut those words long lists or multiple outcomes; try to simplify marketing phrases like "printing money" Here are my favorite 10 slides I read. Did I miss any cool projects?

i'm back

ty. this is for all the builders in @customhack_

i just scraped all 4516 YC companies. pretty much all the data available publically. fun stats: - 394 locations - 1022 launches - 8782 founders (prev and current) - 3260 founder twitter handles - 8509 founder linkedins more coming soon... columns: - name - one-liner - batch - location - type - categories - profile-href - url-href - status - founded - description - launches - founder-name - twitter-href - linkedin-href - company-linkedin-href - company-twitter-href - company-crunchbase-href - company-github - number-jobs - team-size - latest_news - latest_news-href got ideas of what i should do with it?

who is still running the @_nightsweekends account?

My app has been live for 7 weeks. - 15,000+ Direct Messages with Links - 50+ Instagram Accounts signed Up - 5 Paying Customers - Ranging from 10k to 400k followers I spent the last 3 months with 35 other builders in SF. I was surprised by what I learned from it:

a big milestone for me as a founder: i'm going from attending... to sponsoring & hosting our first hackathon—CustomHack, a global hackathon to build personalized software. We're giving away $5,000 in cash prizes so apply below in the comments! thank you to our amazing sponsors: @lingodotdev, @autumnpricing, @tambo_ai, @supabase, @resend, @firecrawl, @better_auth

you can just do things. 48 hours to build something personal. 66 ideas people are building this weekend. (in no particular order) it's not too late to join them. there are $4700 worth of prizes left: 1st place: $2,000 2nd place: $750 3rd place: $500 social favorite: $1,000 instant prizes: $450+

> grew up in maryland > k-12 was hard (dyslexia) > received a scholarship > graduated magna cum laude > stumbled on product management > shipped a lot of stuff over 10 years > took time off > wandered through the "desert" > sold ultralight dog quilts > almost won $25k 2024: > moved to SF for 12 weeks > surrounded myself with cracked people > built a viral social media app > learned to "blaze my own path" > landed back in seattle > my brother got married > tried on a few new ideas > met a dope co-founder > found the right one for me > started a company > got runway 2024: 🎢 2025: 👷 let's go

here is our founder's video:

hydra chat demo video v2 thanks for the feedback on v1 would you give us $250k?

Long, but good day.

i spent 11 weeks a @_buildspace working on my project during sf2 my notes of what I learned are still pinned in apple notes.

i'm calling the next gpt4o trend: claymation what should i try next?

everything is temporary, even buildspace i’m just thankful to @farzaTV and team for everything i owe betting big on myself to the community they built just wishing the whole team good luck on their next adventure not that any of them need it.

I can’t believe it’s over…

I'm boarding my flight to SF to attend @_buildspace sf2 for the next 3 months! I'm building linkinchat - a product to help Instagram creators send links to their fans. Excited to meet the rest of the sf2 batch. 👋 It's going to be wild.

i met max in 2023. we were both finalists in an online hackathon. rip buildspace 🪦 our projects got selected out of 10k+ builders. i didn’t win anything. but it still did change my life. max and i are cooking up something to pay it forward. we are announcing the details soon. i hope it changes your life, at least a little bit.

Feeling sad building alone? I know I am. I'm hosting demos next Friday at an undisclosed location. Guaranteed you won't be sad anymore. Want the link to sign up? Comment below.

made this landing page in 4 hours. #speedrun what do you think?

i reviewed 100+ @_buildspace demos my top 8 list has 70k views. if I missed yours, drop it below. i'll review another 100.

haha i feel this

i turned 33 over the weekend. i'm reflecting on adventure. life is unequivocally one. wether you recognize it or not.

MRR 0-> $5

what i learned from @_buildspace sf2 ​ sf2 is an 11-week on campus school for people working on their ideas ​ i think about what i learned at @sharifshameem "roundtable" almost every day ​ after irl -- lesson #3 is critical ​ sharif is the founder of @LexicaArt ​ lexica turns your imagination into reality. ​ you should check it out. it's pretty cool. ​ he didn't start out building Lexica. ​ he was working on an entirely different startup. ​ a low code builder called Debuild. ​ but he was interested in image generation with ai. ​ so he started building an app to help him generate images for himself. ​ he posted it and was getting more traction than the product he had been building for two years. ​ he pivoted ​ this is lesson #1 ​ the best products are the ones you build for yourself first. ​ if you love it, then there will probably be other people who will love it too. ​ i can't tell you how many times i worked on products that i didn't love ​ or even understand or care about. ​ it showed in my work. ​ he talked a lot about his team and how he likes to hire friends. ​ but not just any friends. ​ this is lesson #2 ​ friends who want to "build the room". not just come into a room already built. ​ this is so critical for early-stage teams. ​ but back to why friends. ​ it has to do with the most overlooked type of capital ​ emotional capital. ​ this brings me to lesson #3 ​ the money will outlast your emotional runway ​ damn, that hits hard. ​ i always worried about the money. ​ money has never been the issue. ​ it's always been the emotional part. ​ working with your friends (or people you vibe with) and people who are builders ​ extends your emotional runway. ​ lesson #4 (bonus) ​ @brawnsome asked the most interesting question: ​ what if your friends aren't as skilled or over time the needs of the business go beyond their skill level? ​ what then. ​ sharif made a profound point: ​ the fact that they helped you get to that point is all that matters. ​ that's their #1 purpose to keep you going. ​ for all founders at some point, the needs of the business will and should outstrip your ability. ​ in summary: #1 build products for yourself that you love #2 hire builders #3 your emotional runway will outlast your financial runway #4 the goal of a co-founder is keeping you in the game ​ this is like 5% of my notes from sf2 ​ i'm dropping the rest over the next couple of weeks. ​ stay tuned

0 --> 1 million views in 5 months the 9 tweets that got me there:

the customhack judges be judging. 60+ final demos. they kind of blew me away. most importantly good vibes. i wanted to take a moment to thank our judges/organizers. this was way harder than i expected. we did give ourselves only 2 weeks to figure it out. thank you. special thanks to @MaxPrilutskiy and @vrcprl

just landed. successful trip to sf. can’t wait to share more.

rejected by @ycombinator? my dm's are open!

a robotic arm

study from youtube did I mention she just graduated from highschool?

how do i deal with irl withdrawl? 'm creating unofficial @_buildspace swag.

solving social media addiction. did i mention he's still in highschool!

There isn't a way to chat with your gcal, yet. So, I started building it. What would you ask ur calendar?

Should I start a hacker house in Seattle?

Why is outdoor dog gear so heavy, bulky, and behind the times? I want to change that, starting with the dog sleeping quilt, a superior alternative to the dog sleeping bag. Thoughts? CC @_nightsweekends @_buildspace

a spoon for people with tremors

Thanks for the inspo

First demo of my murder mystery night generator. Just enter your theme and who you want to invite. It generates the entire script, characters, and plot. Comment your craziest party theme ideas.

I just want to add the overall experience with YC has been great. The feedback from their team was both clear and encouraging.

finally set up my desk at "the garage". now I just need some builders.

there will be a Netflix docuseries in the next 10 years about this crew who wants to take the other side of that bet?

a preview of the future of UX we just added calendar support to origin check it out: 1/ Schedule meetings from free-text (more below 👇) cc @_buildspace

threw my first party for founders - 50+ cracked founders - live beats by eric (link below) - drinks + dope spot (foundations) - vibes can't wait to run it back soon ✌️

7/ Farza was probably the most surprising person to meet in person. from the live streams you'd think he was some mega extrovert. he's actually one of the most thoughtful introverts i have ever met. the guy spends more time thinking than anything else. he just has this way of seeing through the bullshit and getting to the core i asked for feedback from him once on something... instead of telling me what he thought i could better he asked one question: "would you watch this?" in four words, he told me more than he could in an essay. i still use this feedback every day. before buildspace, i was building for all the wrong reasons. farza builds for the only right reason: "love". it's why he closed down buildspace. as much as it makes me sad, i not only respect it, i see it as his final lesson to me, and maybe all of us. he says, "follow your excitement" but i think he should really say: "follow what you love" sometimes, that means breaking up. ty farza for all the good times.

I've sent 500k dms on Instagram. I launched LinkinChat six months ago. It sets up ig comment and message automation with AI. Check out the link below to see the live message stats. ty @_buildspace and my sf2 fam for the support.

Pumped to be working on origin with this cracked team! Link in my bio.

i'm 31 and I am flunking out of school. i'm a student @_buildspace a school for people working on their ideas. the principle: @amit_ajwani, told me if I "can't get 100 people to sign up for my product by the end of this week I need to pivot" 👀 getlinkin.chat 🙏

if you are a guy in your early 20s go travel the world. go into the debt if you have to. this is not satire. if your smart you can do this for 4 grand. it will not help you get women or future business relationships. if you do it right you will care a lot less about money and status.

👏

soham parekh just joined the customhack should i boot him? or see what he builds?

here is what we are building: github.com/michaelmagan/hydr…

I got another sale today. It’s not $25,000 but a win nonetheless.

i'm hosting a hackathon they need to record a <2-minute demo. i created an example final demo help them by roasting it 👇 i will share this thread with the 420 participants

something special is happening here

check out @georgiaaa108 demoing: co-finder to help find a co-founder... or just a friend. built with love at the @AITinkerers hackathon. team: @marthakelly, @heronalps cc @jheitzeb, @dexhorthy

keeping those @_buildspace irl vibes going in seattle with @MsModernChi

Whose hustlin in Seattle? I want to meet you.

Forgot to turn on waterproof mode. Now it’s $90,000 paper weight.

"I watched two youtube videos and then made this sick video" f**king gen-z'rs making everything look so easy. ;)

where should we go next?

i went to this thing called @_buildspace irl last weekend and stayed in a hostel with a roommate. finally on the last night at 12am i met my roommate @MrBinspire. he was also in sf for @_buildspace irl. then of course we stayed up late coming up with rhymes using his app.

chesski's ig marketing strategy: @_broskitweets creates short-form chess content. If people want to sign up for his app, they can comment on a code word on his post. Then he will DM them the link. He was spending all his time manually DMing people. His account was "blocked" because he wasn't using the "right" messaging features. I set him up with LinkinChat in for about 2 minutes. Now, my app automatically sends the link to every comment. Now this is what his DM's look like:

Inflection point...maybe?

npm create tambo-app tambo.co/mcp

let’s make ui magical

we just talked to hundreds of people building with ai across: - fintech - edtech - b2b saas - web3 - dev tools - healthtech - hrtech - legaltech 80%+ were building ai assistants. 50% of them had already built some form of generative ui into their assistants. most weren’t happy with what they built — and many were excited to see how we had solved those problems (and more). the other half hadn’t built it yet, but were pumped by how simple we made it to get started. we are accelerating the future of gen UI. thanks @michael_milst, @heyavi_, @alecf for giving back to back demos for hours straight :)

build a better youtube search with mcp + generative ui 1. type a query 2. it searches. 3. reads transcripts. 4. jumps to the right moment 5. inside embedded video player you can build this in minutes ty @SmitheryDotAI @nextjs @zodtypes

next stop fort mason