I still haven't solved the CO2 bedroom challenge

1 May, 2026 · 2,244,859 views · 4,357 likes · 201 reposts

Health Automation Tech Science

I still haven't solved the CO2 bedroom challenge

You open the window and you wake up from a 6am garbage truck or barking dogs and sunlight

You close it, you suffocate in 1200 ppl at 5am

I guess you really need some mini tube in your wall with a vent that opens and closed based on internal CO2 but how do I build that?

Originally posted on X · 💬 2,330 replies — add yours

P.S. I'm on 𝕏 too if you'd like to follow more of my stories. And I wrote a book called MAKE about building startups without funding. See a list of my stories or contact me.

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2026

30 Jul You should change your flight from Tokyo to Shanghai to visit actual China 𝕏
29 Jul The West's biggest blindspot is repeatedly underestimating China's speed and capabilities 𝕏
29 Jul I've already seen Wispr Flow, Granola and WHOOP reverse engineered and open sourced with fully free versions today 𝕏
26 Jul BigAI is cannibalizing everything that used to be apps for indiehackers 𝕏
26 Jul I cancelled all my SaaS subscriptions and vibecoded 100% of them myself 𝕏
24 Jul Most guys over 35 now have the padel body and you need to fight it 𝕏
23 Jul The European union makes more money from fining us tech companies than taxing Europe's own public tech companies 𝕏
23 Jul Things I learnt after buying a house and going through lots of shitty products 𝕏
22 Jul The French and Germans will ban Tesla FSD to protect their car industry 𝕏
21 Jul AI raises everyone's app quality but customers now vibecode their own clones to skip paying 𝕏
20 Jul I increasingly have no idea about anything anymore because time is changing too fast with AI 𝕏
20 Jul Looking through 80+ seed incubator applications shows everyone's building similar AI slop 𝕏
20 Jul Superintelligence has passed us and we're all running after the carrot 𝕏
20 Jul Yesterday at a party we said maybe software is dead and everyone pretty much agreed 𝕏
18 Jul 5% ownership is probably the most common final stake for VC funded startup founders 𝕏
17 Jul Good guy Google removes 151 to 200 reviews from kebap haus due to defamation complaints 𝕏
17 Jul It's hard to imagine how much richer US is getting 𝕏
17 Jul How to buy S&P500, tech, bonds and commodities ETFs on IBKR as US or non-US citizen 𝕏
17 Jul How to code with Kimi K3 better than Fable and no restrictions 𝕏
17 Jul Kimi K3 from China hammers through my Windows XP Simulator todo list while Claude wastes 2 weeks on safety guardrails 𝕏
17 Jul macOS 27 in the browser created by Kimi K3 𝕏
17 Jul Google Maps in Germany now shows defamation complaint amounts, so here's a calculator to find a place's real rating
17 Jul US restricts AI models so China builds better ones and everyone switches 𝕏
15 Jul Every single time they have AC but you can't have AC 𝕏
14 Jul All you need to build a business is free open source software a VPS an AI API and R2/S3 𝕏
14 Jul How they want you to live tiny windows no AC vegan food nonstop work and medication 𝕏
14 Jul How you should live with sunlight AC whole foods and exercise 𝕏
14 Jul I invested in EthSystems to make Ethereum private for banks 𝕏
13 Jul Places the most attractive rich and educated nomads visit vs the least 𝕏
11 Jul 2 hours after a German signs up to your site 𝕏
11 Jul Open letter to the Portuguese government to approve Tesla FSD 𝕏
9 Jul EU chat control has passed allowing warrantless scanning of messages 𝕏
9 Jul Testing my iOS app on web with Claude Code and serve-sim on a headless Mac Mini 𝕏
9 Jul The Everything Chart
7 Jul EU keeps resubmitting chat control after 5 rejections proving it's undemocratic 𝕏
7 Jul One more week to escape the underclass 𝕏
4 Jul A working Atari ST inside a blog post with full internet
4 Jul Degrowth is likely just masked foreign sabotage 𝕏
4 Jul Europe fights for 6 years whether to install AC or not while China produces an AC every 6 seconds 𝕏
2 Jul Is the stock market in a bubble right now?
2 Jul Korea's bus stops have AC to keep you cool in the heat 𝕏
1 Jul Foreign funding is behind the degrowth movement in Europe 𝕏
1 Jul Portugal's EU customs blocks every package from outside making modern products impossible to order 𝕏
29 Jun Degrowth killed 250,000 people by avoiding ACs in Europe 𝕏
28 Jun Bitcoin's 4-year cycles 𝕏
28 Jun I've been coding almost solely on my VPS with Claude Code for almost a year now 𝕏
28 Jun Congratulations Europe you killed 1,000 people with your degrowth bs 𝕏
26 Jun Degrowthers are literally opposed to life 𝕏
26 Jun An entire Herculaneum scroll has been read for the first time 𝕏
25 Jun Bus driver in France crashes after fainting from heat with no AC 𝕏
25 Jun Far left French newspaper against air conditioning has roof covered in AC units 𝕏
25 Jun How did AC become the political battleground of choice in Europe 𝕏
25 Jun Using Claude Code to psychoanalyze 5 years of chat logs 𝕏
24 Jun Having an AC in Europe now classifies you as far right 𝕏
24 Jun Europeans will ignore anti-AC rules and buy air conditioners in 2027 𝕏
24 Jun The craziest thing about Quake is how many modern FPS games originate from it 𝕏
23 Jun Europe had 248,875 heat-related deaths vs 9,436 in the US from 2020 to 2025 𝕏
21 Jun LVMH buys luxury brands like Tiffany and Rimowa then 10x prices while cutting costs 10x 𝕏
18 Jun In San Francisco everyone is saying software is commoditized by AI so smart people are moving to hardware 𝕏
17 Jun Vibe Jam 2026 winners and how the games are getting close to real production quality 𝕏
16 Jun America still has post offices unlike most of Europe 𝕏
16 Jun My first real investment exit with Cursor AI 𝕏
16 Jun SpaceX valuation seems crazy until you try airline WiFi without Starlink 𝕏
15 Jun Europe's GDP per capita will stagnate while the US grows to twice as rich by 2030 𝕏
14 Jun Europe has gotten very poor fast while America has only gotten richer 𝕏
14 Jun US hotels give way more value than Europe now with better AC and amenities 𝕏
11 Jun I ported Return to Castle Wolfenstein to the web with multiplayer in an hour using AI 𝕏
11 Jun I revived a 28 year old Quake 2 map with AI into web-based multiplayer 𝕏
10 Jun I built a web-based virtual null modem to play Quake I in MS-DOS in multiplayer online 𝕏
8 Jun My drum & bass double drop edit: Heavy Sound System x Shadow People
8 Jun Indie hackers build fancy AI factories but have no money or traffic 𝕏
7 Jun I built a web-based dot matrix printer that prints from Windows 3.11 𝕏
6 Jun Everyone can now build apps with AI so now distribution is the real challenge 𝕏
6 Jun Rimowa suitcase broke after Copenhagen to Lisbon flight and why avoid luxury brands 𝕏
4 Jun Revolut fixed my banking nightmares after Rabobank froze my card in Bali and made me homeless in the US 𝕏
3 Jun This is how you do a great startup video 𝕏
1 Jun European Commission lies and calls truth a narrative 𝕏
29 May Luxury brands like Rimowa and LVMH are mostly a scam 𝕏
29 May Luxury hotels are mathematically bad value 𝕏
29 May I cook friends a 400g steak with beef tallow and take them lifting to cure tiredness depression or lethargy 𝕏
28 May EU AI fund is all cronyism and taxpayer money burnt 𝕏
28 May Western Europe is so fucking tiring 𝕏
27 May Build on the side until it makes money before quitting your job 𝕏
27 May Hotel in the Netherlands sets AC minimum at 23°C and locks windows for security 𝕏
26 May My friend's Lisbon office got burglarized and Portuguese police refused to recover his Airtagged Apple display 𝕏
25 May Leiden might be the best Dutch city to visit instead of tourist Amsterdam 𝕏
23 May I don't write code anymore 𝕏
22 May My daily laptop and iPhone setup for sites on a VPS with Claude Code 𝕏
22 May My latest Termius and tmux setup for every site 𝕏
21 May Luxury products are really just meant for poor people to fake they're rich 𝕏
17 May Barcelona has drug dens and violent crime in El Raval that Google Maps won't show 𝕏
17 May Hoodmaps.com now has crime data 𝕏
15 May Ignoring mind viruses leads to a slippery slope of meat allergies from engineered ticks 𝕏
10 May Cloudflare is now the cheapest email provider at $354/mo 𝕏
9 May Most EV chargers in Portugal are out of service thanks to EU subsidies 𝕏
5 May How keeping CO2 low with a bathroom fan gave me 100% sleep score 𝕏
5 May My gf banned from reviewing places on Google Maps in Europe after one 1-star review 𝕏
2 May Airthings is the best air sensor after trying fakes and dodgy ones 𝕏
1 May I still haven't solved the CO2 bedroom challenge 𝕏
30 Apr Winning my first big Stripe dispute in a decade with a vibe coded responder 𝕏
23 Apr Claude was dumbified on March 4 exactly when we noticed 𝕏
23 Apr I open sourced my first Chrome extension SuperLevels 𝕏
18 Apr My sites get 4 billion requests a year but I only pay $244/mo to host them on my own VPS 𝕏
16 Apr Europeans are all captivated by the mind virus 𝕏
6 Apr Made an auto-dispute response system for Interior AI to see how easy it'd be 𝕏
5 Apr Tech insiders avoid touchscreens and smart homes because they know the downsides 𝕏
2 Apr Brazil's CPF catch-22 makes booking hotels impossible for tourists 𝕏
1 Apr April fool's pizzas in US are real pizzas in Brazil 𝕏
1 Apr I made a free open source xdr boost app for macOS using claude code in 5 minutes 𝕏
30 Mar Why Portuguese businesses don't want more customers or to grow 𝕏
28 Mar Give us more data to make sure it's you after we've been breached 𝕏
27 Mar Argentinean meat is one of the worst in the world now 𝕏
26 Mar ChatControl is back with a vengeance 𝕏
21 Mar Daniel Radcliffe makes $660,000/mo from investments in perfect fire story 𝕏
16 Mar The irony that traveling on less than $1,000 a month is more fun than luxury travel 𝕏
16 Mar Quake III server now runs in the browser 7 years later 𝕏
14 Mar European governments reject net positive Italian brazilians but welcome culture destroying immigrants 𝕏
6 Mar OpenClaw's real power user is my girlfriend chatting with it in Telegram 𝕏
6 Mar Photoai.com is a 40,870 line index.php making 105,000/mo revenue and 80,000/mo profit 𝕏
28 Feb I ran Claude Code on the server in bypass mode and outran my todo list 𝕏
24 Feb Built my own gaussian splat viewer for Interior AI 𝕏
24 Feb How to build a bootstrapped startup without funding 𝕏
21 Feb 1983 Wall Street Raiders game reverse engineered from 115,000 lines of BASIC 𝕏
17 Feb Steipete on why Europe can't retain talent due to regulations and labor laws 𝕏
16 Feb Added dark mode to my http proxy for reading on kindle 𝕏
9 Feb Things in your house slowly poisoning you and what to change them to 𝕏
7 Feb Visiting Brazil's biggest indie hacker meetup 𝕏
5 Feb My dad the cardiologist got free family holidays from Pfizer to prescribe their drugs 𝕏
4 Feb My friend on SSRIs tried to convince me I have generational trauma 𝕏
3 Feb EU countries are now trying to censor speech on social media nationally after DSA failed 𝕏
2 Feb You absolutely cannot trust Germans with nukes 𝕏
2 Feb I'm so done with real estate agents 𝕏
20 Jan Europe's 28th regime could create a Delaware for startups 𝕏
20 Jan Europe's tax system discourages hard work and new businesses 𝕏
15 Jan The era of fake e-girl influencers has started 𝕏
13 Jan Moved all my sites LLM APIs now to xAI 𝕏
12 Jan Women are most attracted to men who believe in astrology 𝕏
11 Jan Freezing bread from the local bakery solves sellouts and lowers blood sugar spikes 𝕏
4 Jan Luxury is absolutely done in the West but still exists in Asia and the Gulf states 𝕏
3 Jan Map of South America as the United States of Amazonia 𝕏

2025

23 Dec I glued an AirTag to a yogurt box to track if recycling is real 𝕏
23 Dec The oceans are full of plastic exactly because you recycle 𝕏
17 Dec I bought over $1M in Google because Sergey returned and they're winning AI 𝕏
15 Dec Sergey Brin got so bored of his $450M yacht he had to create things again 𝕏
14 Dec Qatar Airways business class gets you special arrival reception at Doha 𝕏
14 Dec Why Koreans didn't get richer 𝕏
13 Dec I got 100+ mbps plane internet on Qatar Airways with Starlink 𝕏
13 Dec Amap is my favorite navigation app in China 𝕏
13 Dec Chinese EVs are beating German cars with better software and innovation 𝕏
13 Dec The EU is in control of what you see online thanks to the Digital Services Act 𝕏
13 Dec NIO is another very popular EV brand in China 𝕏
11 Dec Advice I give 5 minutes after meeting somebody new 𝕏
9 Dec The European Commission is the cancer rotting the EU from within 𝕏
7 Dec China can be very cheap with $300 Chongqing hotel suites and $20 rooms 𝕏
7 Dec Chinese tourism is 95% domestic making China feel like the only foreigner there 𝕏
6 Dec Restaurants in China show their menus as photos on the wall 𝕏
6 Dec Never fly directly into Lisbon from outside Europe to skip immigration 𝕏
5 Dec Chongqing looks gray and derelict without its night lights and needs better maintenance 𝕏
4 Dec Chinese high speed trains are now faster than the Japanese Shinkansen 𝕏
4 Dec Arriving in Chongqing and China's LED lit skyline versus Europe saving energy 𝕏
4 Dec I took the high speed train in China today 𝕏
4 Dec Western double standards on China versus Japan city lights 𝕏
3 Dec China's train security is stricter than TSA 𝕏
3 Dec Getting the China flu after arriving and why to wear an N95 on planes 𝕏
3 Dec Never bring a knife to China because DHL and customs make shipping impossible 𝕏
29 Nov I got the China cough after 4 days in China 𝕏
29 Nov Rich BigTech wives destabilizing society from 2016 to 2023 via giant NGO donations 𝕏
28 Nov Chinese brands replacing Western brands in China 𝕏
28 Nov Rentable powerbanks in China scan with Alipay but would get stolen in US or Europe 𝕏
28 Nov Western people used in Chinese marketing to represent quality 𝕏
28 Nov We've literally just lost power in Europe 𝕏
27 Nov Beijing uses robot arms at toll booths 𝕏
27 Nov China airport confiscated our power banks without CCC certification 𝕏
27 Nov The Russian connection in China doesn't stop 𝕏
27 Nov Woke up in Beijing's Summer Palace built in 1750 as a birthday gift 𝕏
26 Nov Got Alipay to work in China as proxy for Didi Meituan and Baidu 𝕏
26 Nov Russians are traveling to China a lot because they're blocked from most places 𝕏
26 Nov I started lifting weights at 30 and gained 30kg of muscle 𝕏
25 Nov China isn't easy to travel 𝕏
21 Nov Netherlands changes stock options tax to US system for startups 𝕏
20 Nov EU is finally scaling down GDPR, AI Act and cookie banner laws 𝕏
17 Nov Only the US and China have actual substantial startup activity now 𝕏
13 Nov EU ChatControl is back with even more far reaching surveillance through the back door 𝕏
10 Nov Singapore too is now compromised by degrowthers 𝕏
27 Oct European Commission denies my request for GPUs 𝕏
24 Oct EU's AI factory plan requires proposals while Lambda gives you 8x H100s in 5 minutes 𝕏
24 Oct I can't use the EU's GPUs because Horizon 2020 closed in 2020 𝕏
23 Oct EU AI factories have 500x less compute than xAI 𝕏
23 Oct EU AI factories require proposal calls and endless ethical questionnaires instead of simple GPU access 𝕏
1 Oct levels.vc - my investment fund
29 Sep Get a VPS at Hetzner already 𝕏
28 Sep Counter-law to let all European citizens read any EU politician's chats 𝕏
24 Sep CdK Podcast: A brutal foreigner's view on Portugal
18 Sep It turns out Mark Manson was mostly right about Brazil 𝕏
30 Aug Jesus was a Jewish hippie that went backpacking in India 𝕏
25 Aug Correlation between screen size and your importance in the company 𝕏
19 Jul 10g of creatine per day 𝕏
11 Jul Europe must stop restricting air conditioning or heat deaths will hit 500,000 per year 𝕏
9 Jul Stripe Podcast: A Cheeky Pint with John Collison
6 Jul Chinese pigs are treated better than the average European 𝕏
6 Jul Spain's meteorological agency says healthy people should not use air conditioning 𝕏
5 Jul Silence is high IQ 𝕏
4 Jul More Europeans die from heat than Americans from shootings 𝕏
2 Jul My friend lives in a tent in his house in Portugal because neighbors ban real AC 𝕏
22 Jun I made a trailer for the future of humanity (e/acc) 𝕏
17 Jun South Asian immigrants in Portugal game welfare for passports and EU access 𝕏
15 Jun I randomly discovered Dubai has an absolutely massive solar farm 𝕏
21 May Visiting my API provider FAL in San Francisco 𝕏
11 May Visiting OpenAI's office in San Francisco and seeing the city's improvements 𝕏
28 Apr Electricity is down in entire Portugal and Spain peninsula 𝕏
26 Apr The only thing young people in Southern Europe can do is drink and smoke 𝕏
23 Apr Winners of the 2025 vibe code game jam 𝕏
10 Apr Europe wants to reduce its anti-AI act and GDPR to compete in AI 𝕏
10 Apr Andrej Karpathy visited my weekly coworking in Portugal 𝕏
9 Apr So Trump is vibe presidenting 𝕏
7 Apr Europe to slash GDPR privacy law in weeks to compete with US and China 𝕏
3 Apr Europe is cooked as Italy bans AC below 26°c 𝕏
28 Mar Being an entrepreneur now has more job security than a job 𝕏
25 Mar What ChatGPT says the devil would do to keep an entire nation sick 𝕏
4 Mar What's crazy when you read about Taiwan Semiconductors is you realize Nvidia are essentially dropshippers 𝕏
22 Feb fly.pieter.com, my first vibecoded flight simulator which reached $1M ARR in 17 days 𝕏
16 Feb Man investigated after calling German vice-chancellor ‘idiot’ 𝕏
30 Jan Leaked EU competitiveness compass draft emphasizes accelerate and cut red tape 𝕏
29 Jan We need a federal union of Europe to compete with US and China 𝕏
26 Jan Europeans have collective memory loss from just 35 years ago 𝕏
19 Jan Dating apps don't work in 2025 so meet people through hobbies and friends 𝕏
17 Jan Meeting Bryan Johnson at Din Tai Fung and his don't die health cult 𝕏
12 Jan Make Europe great again 𝕏
11 Jan Europe slowly realizing it's losing the last control it had on the world with ignored censorship requests 𝕏
9 Jan The Brazilian real currency should be on crypto exchanges because it's the biggest shitcoin ever 𝕏

2024

29 Dec The only planes left with zero fatal accidents now 𝕏
22 Dec A tractor is a great parallel to AI because it helps people do their work easier and faster 𝕏
19 Dec Renting saves you money over buying if you own the house for less than 15 years 𝕏
18 Dec Self driving cars react 150x faster than a human driver 𝕏
14 Dec Europe is ruled by rich nepotist families and unelected corporatist cronies killing startups 𝕏
11 Dec EU/acc goals now on euacc.com 𝕏
10 Dec How Elon does politics is smartest and my 6 goals for Europe 𝕏
9 Dec I got 1 billion views on X in the last 12 months 𝕏
9 Dec Both a16z and YC's request for startups for 2025 just came out 𝕏
8 Dec I put an AirTag in my plastic recycling to see if it actually gets recycled 𝕏
2 Dec OnlyFans just hacked basic human biology 𝕏
26 Nov Started lifting at 30 and that has avoided the pains most of my in-thirties friends have 𝕏
24 Nov Europe's end game might be to become like Japan a cheap tourist destination 𝕏
22 Nov My minimal solo founder setup with 100% automation and 99% profit margins 𝕏
12 Nov Lift weights to grow neurons MIT study shows 𝕏
1 Nov The difference between free users and paying users is about 1,000x from my experience 𝕏
1 Nov What is happening to Google now is pretty much textbook of what happened to Xerox PARC, but worse 𝕏
1 Nov Sundar Pichai fumbled Google's AI head start and it'll be studied for decades 𝕏
31 Oct Rent an empty office space and invent the future 𝕏
6 Oct Every European with talent moves to the US for startups or Bali and Chiang Mai for indie hacking 𝕏
6 Oct Macron warns EU has only 2 or 3 years before total US and China dominance 𝕏
5 Oct The poor get free gov money the rich avoid taxes and the middle class gets rekt 𝕏
2 Oct Surround yourself with builders not talkers 𝕏
30 Sep Travel and fitness are two of the most important things you can do for your brain 𝕏
26 Sep Will there be anyone left at OpenAI in the future? 𝕏
26 Sep Sam Altman will give himself 7% of OpenAI worth $10.5B 𝕏
23 Sep Nomad List is one of the first network states 𝕏
22 Sep Fireside chat with Balaji Srinivasan at Network State Conference 2024
22 Sep I hit a new $420,000/mo revenue record thanks to the Lex Fridman podcast 𝕏
16 Sep Thierry Breton resigns after EU AI Act and DSA criticism 𝕏
12 Sep Arresting Jack Ma was the dumbest thing China has ever done 𝕏
9 Sep My recommendations for mario draghi's EU competitiveness report 𝕏
5 Sep Bali broke ground on a subway that will connect the entire island 𝕏
5 Sep Google APIs are the worst APIs on the web to work with 𝕏
31 Aug European founder had to move to the US to build a humanoid robot company 𝕏
25 Aug Pavel Durov arrested in France 𝕏
24 Aug I still meet programmers who are not using AI to code 𝕏
24 Aug The web development industrial complex has lied to your face 𝕏
20 Aug Lex Fridman Podcast 𝕏
19 Aug Apple Maps vs Google Maps in 2024 𝕏
19 Aug I made a deadlift ETF with CEOs that lift weights or fight sports outperforming the S&P 500 by 140% 𝕏
8 Aug I only wear Alo Yoga shorts but they are made from polyester that disrupts your endocrine system 𝕏
8 Aug Someone needs to invent cotton yoga shorts 𝕏
6 Aug Europe's governments made energy expensive on purpose to stop you from using it 𝕏
5 Aug Could air conditioning explain why more top US companies were founded after 1950 than in the EU? 𝕏
5 Aug In Bali the heat puts your brain into power save idle mode 𝕏
5 Aug If you wanna get rich install AC 𝕏
30 Jul Amazon is a showroom for Aliexpress which is a showroom for Taobao 𝕏
30 Jul Building Pieter.com, my retro PC in the browser 𝕏
28 Jul I'm on 6 grams of creatine per day for the last 2 years 𝕏
24 Jul Finally met my hero Patrick Collison founder of Stripe 𝕏
13 Jul Thierry Breton represents 100+ year old European dinosaur companies as EU tech policy director 𝕏
10 Jul All Airbus models made in the last 25 years have zero fatal crashes 𝕏
9 Jul If cars were invented today the European Union would have regulated them out of existence in favor of horses 𝕏
7 Jul A majority of the worst ranked airports in the world are run by Da Vinci Airports 𝕏
7 Jul Imagine traveling to Europe to spend your hard-earned money and getting sprayed with water guns by degrowth protesters 𝕏
5 Jul American restaurants kick you out after one meal unlike Europe 𝕏
4 Jul Japan is not futuristic it's a fossil stuck in 1990 unlike China Korea and Vietnam 𝕏
2 Jul Jack Ma met Jerry Yang at the great wall of China in 1997 𝕏
1 Jul The rise and fall of Lisbon (2020-2024) 𝕏
30 Jun I made luggage losers a live ranking of airlines by lost luggage 𝕏
24 Jun Everything in Europe comes from Germany and everything in Germany comes from China 𝕏
17 Jun Degrowth propaganda is everywhere you look now 𝕏
15 Jun Learn Python for remote AI jobs paying median 80k 𝕏
14 Jun Guy sells his $50k/mo business for $10m but it's just an acquihire 𝕏
13 Jun So many VC funded exits are actually massive failures 𝕏
7 Jun If you wanna get rich fastest make a premium product for Switzerland UAE US and Singapore 𝕏
5 Jun US proposes ban on DJI drones after it became world's biggest manufacturer 𝕏
19 May US bans Chinese companies after they become market leaders 𝕏
17 May The euro kinda destroyed southern Europe's economies 𝕏
14 May EU company landscape is run by dinosaurs founded 50 years before US ones 𝕏
14 May My first interaction with a WIRED journalist 10 years ago 𝕏
5 May New York City was founded by the Dutch as New Amsterdam 400 years ago 𝕏
29 Apr It's time to start EU/acc the European version of e/acc 𝕏
29 Apr Most Europeans don't realize how stagnant Europe has become 𝕏
29 Apr Made EU/acc logo 𝕏
7 Apr South America uses remote security people and doormen 𝕏
27 Mar Wayfair used my AI interior design tool to build their own 𝕏
21 Mar Got scammed with the extra zero trick at Órale Juanito Palermo in Buenos Aires 𝕏
21 Mar Uber is completely useless in Argentina because of a hardcoded price check 𝕏
10 Mar British people are now the 2nd most miserable people in the world 𝕏
14 Feb MMA turned him from an awkward nervous wreck into a confident guy 𝕏
8 Feb Every day it gets a little easier but you gotta do it every day 𝕏

2023

22 Dec AI generated images are 10,000x cheaper than any human could charge 𝕏
20 Dec How I imagined my future million dollar startup office vs my actual million dollar startup office 𝕏
10 Dec Open source LLMs reaching GPT-4 levels way earlier than we thought is the most exciting thing now to me 𝕏
9 Dec There are more regulators in this room than AI scientists in all of EU 𝕏
6 Dec Nobody will build apps on Gemini because Google always shuts things down 𝕏
4 Dec Minimal architect sketches turned into renders with Interior AI v2 𝕏
2 Dec You're just lucky 𝕏
27 Nov Open sourced my entire ChatGPT code for image text adventures 𝕏
21 Nov Trying self hosting alpaca a finetuned llama model after OpenAI drama 𝕏
16 Nov I made my first video game with ChatGPT DALL-E RunwayML and ElevenLabs 𝕏
13 Nov How I'd validate 30 startup ideas in 2023 with TikTok and Stripe preorders 𝕏
1 Nov Nestle's Nesquik gets nutri-score a from EU Commission and WHO 𝕏
25 Oct The Bootstrapped Founder Podcast: Indie hacking is dead, now what?
24 Oct Headspace was started at 38 by former monk Andy Puddicombe who exited at 50 𝕏
5 Oct If I was 18 today I’d skip uni and go nomad building startups 𝕏
25 Sep Actionable marketing tactic to get tiktok videos about your app for $100-$300 𝕏
9 Sep I asked GPT4 which countries you should invest in real estate 𝕏
7 Sep Unbothered writing vanilla JavaScript while web dev Twitter fights over TypeScript 𝕏
6 Sep Why national postal services are so bad at delivering packages and Amazon is so good 𝕏
24 Aug Office trends cycle every 7 years from cubicles to open offices and back 𝕏
8 Aug Invested in Brazil after traveling there for a month 𝕏
4 Aug Good example is GoJEK a super app in Asia where you can do everything from ordering an Uber to massage and investing 𝕏
2 Aug Why fold into wall beds never became a big thing 𝕏
29 Jul $1,000,000 mortgage costs $2,217,160 total with interest 𝕏
22 Jul How to feel like you're getting ahead but actually procrastinate 𝕏
13 Jul Luxury restaurant in Portugal won't accept Visa or MasterCard but barefoot food cart guy in Brazil does 𝕏
13 Jul MacBook adaptor costs $220 in Brazil instead of $99 due to import taxes 𝕏
13 Jul Portuguese have a weird love/hate obsession with Brazil 𝕏
3 Jul Photo AI is almost 14,000 lines of raw PHP making $61,808 per month 𝕏
29 Jun Aspartame is proven to cause cancer in soda drinks 𝕏
24 Jun Wagner coup is like when you hire a web dev and give GitHub access and he takes over your site 𝕏
22 Jun Almost nobody I know in Asia wants to move to America anymore 𝕏
20 Jun Big Dutch dairy company wants me to help create their AI strategy 𝕏
17 Jun While the EU fights about nuclear energy China plans 150 new reactors 𝕏
15 Jun I wish everywhere had these power outlets that accept any plug from US UK EU plus USB-C 𝕏
14 Jun Photo AI adds try on mode for AI clothing models 𝕏
13 Jun So why do you have a sticker over your webcam 𝕏
10 Jun First class in America vs first class in Asia 𝕏
5 Jun US flag stripes come from Indonesia's Majapahit empire 𝕏
4 Jun Drinking alcohol negatively affects the liver and leads to fatty liver called cirrhosis 𝕏
20 May Thailand is a third world country 𝕏
14 May Only losers go to networking events 𝕏
29 Apr Easiest hack to save lots of money is registering as a company 𝕏
15 Apr Casio watch face for Apple Watch 𝕏
6 Apr Buenos Aires is now #1 on Nomad List thanks to cheap currency 𝕏
18 Mar Two types of people now 𝕏
11 Mar If I was just out of school I'd fly to Bangkok to bootstrap my startup for $240 a month 𝕏
5 Mar We need more makers less coaches 𝕏
18 Feb VC startup $100M exit nets 4 cofounders $47 per hour after dilution and taxes 𝕏
11 Feb Digital nomads you are fucking disgusting graffiti in Portugal 𝕏
10 Feb My new project Photo AI a photorealistic AI photo studio 𝕏
6 Feb Google AI launches are all press releases without functioning products 𝕏
16 Jan My new AI model is great 𝕏

2022

29 Dec Airbnb hosts with strict rules and deposits versus easy hotels 𝕏
19 Dec I proved people now have AI bots using ChatGPT to reply to tweets 𝕏
15 Dec Music generated by finetuning Stable Diffusion on spectrograms then generating any song possible 𝕏
10 Dec The real opportunity in AI for most people is building a front end around it 𝕏
2 Dec Indonesia makes sex outside marriage illegal even in Bali while Thailand gets more progressive 𝕏
25 Nov My biggest idea people aren't ready for is 2 dishwashers 𝕏
11 Nov My GitHub contribution graph from 2014 to 2022 𝕏
7 Nov Sold $100,000 in AI-generated avatars with AvatarAI.me in 10 days 𝕏
28 Oct Create your own AI avatars with my new mini project avatarAI.me 𝕏
18 Oct People asked me about my ergonomic desk set up 𝕏
10 Oct Asking successful people about their tech stack is focusing on the wrong thing 𝕏
4 Oct How I built Interiorai.com from scratch in 5 days 𝕏
26 Sep Don't make the goddamn app build a functional mobile site instead 𝕏
18 Sep This House Does Not Exist
9 Sep The best jobs are 100% remote 100% async with no scheduled meetings no whiteboard interviews and no monitoring systems 𝕏
5 Sep My new project thishousedoesnotexist.org lets you generate AI ArchDaily style houses 𝕏
3 Sep Ordered custom tailored 100% cotton shirts from son of a tailor 𝕏
2 Sep How to generate AI images with Stable Diffusion on MacBook M1/M2 for free 𝕏
19 Aug Non-alcohol socializing will be a big industry as people drink less alcohol now and in the future 𝕏
17 Aug Craigslist has the most usable UX ever made 𝕏
31 Jul Edgy opinions that will be mainstream within 10 years 𝕏
28 Jul Todo.txt users sit at both ends of the IQ bell curve 𝕏
14 Jul My First Million Podcast: Sam Parr + Shaan Puri asked me about bootstrapping, open startups and lifestyle inflation
5 Jul The secret of Portugal is to leave Lisbon as fast as possible 𝕏
11 Jun Why offices suck 𝕏
6 Jun European sign calls remote workers a plague and tells them to leave 𝕏
16 May Life Done Differently Podcast: Thinking and doing for yourself
15 May Top rising and falling destinations for remote workers in 2022 𝕏
10 May Building Remotely Podcast: Relocation of remote workers
16 Apr Flying is so stressful it's not a luxury product anymore 𝕏
28 Mar How to avoid microplastics 𝕏
24 Feb I just became a supporter of Ukraine's army for $1,000/mo 𝕏
22 Feb The endless loop of getting ideas starting projects and telling everyone 𝕏
21 Feb EU will require all job postings to show a salary range from August 𝕏
7 Feb A crazy thing I realized about people more and less successful than you 𝕏
26 Jan Indie Hackers Podcast: Money, happiness and productivity as a solo founder
25 Jan A corner office in 2002 vs 2022 𝕏
20 Jan Wannabe Entrepreneur Podcast: Bootstrapping, moving to Portugal and setting up Rebase
11 Jan What advertising wants you to think makes you happy 𝕏

2021

15 Dec If you have $100,000 in savings you're losing $2,000 per month from inflation 𝕏
12 Dec If I didn't travel in my early 20s I'd be working an office job instead of a $10m+ business 𝕏
23 Nov Web4 will be finally closing our computer and going outside 𝕏
7 Nov Only 4 out of 70+ projects I ever did made money and grew 𝕏
31 Oct Me when I deploy to production without testing 𝕏
30 Oct Pov building an immigration-as-a-service startup 𝕏
13 Oct Building a product in the dark without letting people use it early on is the best way to make something nobody wants 𝕏
9 Oct The more I learn the less advice I want to give 𝕏
6 Oct Rich and anonymous is the new rich and famous 𝕏
13 Sep Lisbon is now the most visited city on Nomad List 𝕏
9 Sep Made a fully functional fake VS Code to browse remote jobs without your boss finding out 𝕏
6 Sep Chinese companies are silently ending US tech dominance 𝕏
20 Jul You only need 26 customers paying you $99/mo to make an average U.S. income 𝕏
26 Jun 3 of my close friends were hacked this month because they didn't have 2FA 𝕏
6 Jun I just bought my first billboard in front of Apple's headquarters 𝕏
6 Jun Fastest growing remote work hubs Mexico Canary Islands Dubai Miami Medellin 𝕏
12 Apr Photopea makes almost $1M/y built by Ukrainian indie maker with vanilla JS 𝕏
12 Apr Remote OK is a single PHP file generating $101,101 this month 𝕏
25 Mar The next frontier after remote work is async
25 Mar Why I'm unreachable and maybe you should be too
19 Mar List of all my projects ever
13 Mar This is why I don't do calls 𝕏
8 Mar Why coliving economics still don't make sense
14 Feb Inflation Chart: the stock market adjusted for the US-dollar money supply
3 Feb Delete your day trading app, hit the gym, buy ETFs and thank me in 20 years 𝕏
10 Jan I did a live 4+ hour AMA on Twitch w/ @roxkstar74
9 Jan Rest in peace Hubud Bali where I wrote the first lines of Nomad List 𝕏

2020

20 Dec No one should ever work
19 Dec This is the most exciting time in history to start a company online 𝕏
10 Dec Normalization of non-deviance
5 Dec Copywriting for entrepreneurs: explain your product how you'd explain it to a friend
30 Nov Entrepreneurs are the heroes, not the villains
12 Nov The future of remote work: how the greatest human migration in history will happen in the next ten years
5 Nov Building Remotely Podcast: Will millions of remote workers become location independent in 2021?
2 Nov Overengineering everything is the disease of modern day developers 𝕏
28 Oct The floor is profit 𝕏
21 Oct I'm building a new mini startup this week after finding an idea road tripping in Portugal 𝕏
21 Oct Quibi burned 2 billion dollars of VC funding in 6 months 𝕏
2 Oct 2020 sucked so I'm giving away another MacBook Pro 16" to cheer people up 𝕏
21 Sep RemoteOK.io is a single PHP file generating $65,651 this month 𝕏
28 Aug This week I built a startup idea generator with GPT-3 𝕏
24 Aug Perfection paralysis stops you from getting things done 𝕏
12 May Twitter will allow employees to work from home permanently 𝕏
2 May I added a fake Japanese city called Dorobō to Nomad List to catch data thieves 𝕏
11 Apr Product Hunt Podcast: 5 years in startups with Abadesi
20 Mar Asia had SARS so they test and isolate but the west tries its own thing 𝕏
1 Mar Air pollution before and after Corona 𝕏
11 Jan Twitter giveaways can be hacked to win every time

2019

2018

27 Dec Overnight success is the biggest myth: 10 years and 98% failed projects to make $100k/mo 𝕏
15 Dec Odds of launching something successfully 𝕏
5 Dec Photopea is a 100% free browser version of Photoshop and it's better 𝕏
5 Dec Why is our entire society built around the idea that sleep literally doesn't matter? 𝕏
24 Nov In Beijing you can add your public transit card to Apple Wallet 𝕏
23 Nov Beijing air turned into hell on earth this weekend from weekend driving 𝕏
23 Nov Every receipt in Beijing gives you a QR code for digital bookkeeping 𝕏
19 Nov Beijing today 𝕏
18 Nov The foundations of geopolitics by Aleksandr Dugin describes our current world with scary accuracy 𝕏
14 Nov How to get an idea for your startup from Craigslist 𝕏
8 Oct Map of every European city 𝕏
1 Oct Visited my favorite fintech Revolut's office in London and met the co-founder 𝕏
26 Sep Launched no more Google on product hunt 𝕏
3 Sep Walmart vs Google revenue and profit per employee 𝕏
2 Sep The more religious a country, the less productive it is 𝕏
18 Aug Why Europe can't do tech: low risk tolerance chart 𝕏
11 Aug Top 5 regrets before death 𝕏
29 Jul Internet speed vs murder rate 𝕏
27 Jul Barriers of entry to building a startup have never been so low 𝕏
18 Jul The internet complains about facebook selling data but wants indie apps for free 𝕏
14 Jul The first trillion dollar company is Norway's oil fund 𝕏
4 Jul EU is making it impossible for startups to operate 𝕏
8 Jun You learn a lot about someone when you share a meal together 𝕏
27 May Went to a robot hotel with self check-in and no humans 𝕏
23 May Blocked by a member of the European Parliament 𝕏
7 Apr Sitting in traffic each morning to stare at a screen for 40 years is capitalism's greatest con 𝕏
1 Apr People forget how much advantage you have in 2018 as an indie business 𝕏
21 Mar Building a startup: what people think vs reality 𝕏
20 Mar Don't quit your job until side project revenue surpasses it for 6 months 𝕏
12 Mar My book MAKE on bootstrapping startups is now live on Product Hunt 𝕏
6 Mar Brazil hackers built an AI bot that finds anomalies in public spending 𝕏
26 Feb I just passed $52,843 in monthly revenue 𝕏
29 Jan I'm Product Hunt's Maker of the Year again!
28 Jan Why Korean Jimjilbangs and Japanese Onsens are great
26 Jan Using osx’s screenshot tool as a screen ruler 𝕏
24 Jan Turning side projects into profitable startups
17 Jan Indie Hackers Podcast: Confronting fears and taking a leap
3 Jan What I learnt from 100 days of shipping
2 Jan Money should buy freedom from employment not Bentley cars and Rolex watches 𝕏

2017

2016

2015

2014

2013

2012

30 Dec Unless the job itself is your dream, stay the fuck away from salaried jobs
30 Nov Success is One Big Hoax
26 Oct FML - OCTOPU$$Y
18 Oct The death of the corporate drone
13 Oct The West's unemployment problem is permanent
12 Oct UPSKRT - Brynn's Theme
4 Oct New Panda Mix Show branding and website
29 Aug Headhunterz - Power of Music
21 Aug Essendle interview on my music and my YouTube show
7 Aug The XX - Angels
2 Aug Anna Lunoe & Diamond Lights - Stronger (Willy Joy Remix)
2 Aug Spenzo - Ova
10 Jul Herve feat. Ronika - How Can I Live Without You (Make it Right) (Death Rose Cult Remix)
9 Jul Pheo - Nyquil
5 Jul Why buying YouTube views is bad
5 Jul Citizen - Deep End
5 Jul I love minimalist living
3 Jul D!RTY AUD!O intro
1 Jul Anybody can monetize their passion (now)
28 Jun Diplo - No Problem
27 Jun Skream - Thoughts of You
21 Jun TEED - Blood Pressure
19 Jun Today is the first day of the rest of your life
17 Jun Happiness maximization vs. profit maximization
16 Jun Music genres are dead
15 Jun Make a great product
8 May Redlight - Get Out My Head (UPSKRT Remix)
15 Jan Rasa - Noem 't Wat Je Wilt
2 Jan Tyga - Coconut Juice (Crave x UPSKRT Remix)

2011

2010

27 Jun My Drum & Bass and Dubstep merch line on Spreadshirt

2009

2008

2004

1998

2 Jan I made the Internet Huis where you can walk around in my house online

1997

24 Feb I made a homepage for my brother Jeroen in 1997

1996

14 Mar I made my first homepage in 1996