Jacques Mattheij

jacquesmattheij.com · Personal blog · on HN since 2009

Jacques Mattheij, a Dutch software entrepreneur and HN regular, writes about projects, consulting, privacy, and his early web video company.

What HN saysHN links it for his Lego sorting machine project and his account of early live browser video, with commenters finding the stories impressive.
404HN people shared it
218linked it in comments
440stories submitted
40Kstory points
3 months agolast shared
2009people per year2026

Most-shared posts

  1. 1
    The Unofficial HN FAQ
    36 people · 257 points · first shared 2010 · 92 comments on HN
  2. 2
    Show HN: Sorting Two Metric Tons of Lego
    27 people · 1.3K points · first shared 2017 · 211 comments on HN
  3. 3
    If you've nothing to hide, you've got nothing to fear
    13 people · 661 points · first shared 2015 · 308 comments on HN
  4. 4
    The Unofficial Hacker News FAQ
    13 people · 25 points · first shared 2015 · 5 comments on HN
  5. 5
    How to run a small consultancy / freelancing business
    12 people · 329 points · first shared 2009 · 63 comments on HN
  6. 6
    How to build a windmill
    10 people · 437 points · first shared 2012 · 53 comments on HN
  7. 7
    GDPR: Don't Panic
    9 people · 863 points · first shared 2018 · 800 comments on HN
  8. 8
    How to Sell your Company
    8 people · 337 points · first shared 2011 · 19 comments on HN
  9. 9
    The Several Million Dollar Bug
    7 people · 351 points · first shared 2014 · 80 comments on HN
  10. 10
    So Your Startup Received the Nightmare GDPR Letter
    7 people · 289 points · first shared 2018 · 495 comments on HN
  11. 11
    My list of ideas, if you're looking for inspiration
    7 people · 214 points · first shared 2010 · 138 comments on HN
  12. 12
    The Start-up from Hell
    7 people · 11 points · first shared 2016 · 1 comments on HN
  13. 13
    Sorting Two Tons of Lego, the Software Side
    6 people · 554 points · first shared 2017 · 92 comments on HN
  14. 14
    Sorting 2 Tons of Lego, Many Questions, Results
    6 people · 453 points · first shared 2017 · 205 comments on HN
  15. 15
    Show HN: Long Range E-Bike
    5 people · 880 points · first shared 2021 · 615 comments on HN

What HN people wrote when they linked it

jacquesm · 2010-07-05
> You seem to be always against advising people to make bold choices to pursue their dreams. On the contrary, but there is a right time for everything. Pretending that a class of graduates has something to learn from a guy that basically is standing before them not because of how ethically he lived his life and how happy he is but because he simply is rich (and therefore successful by our most common yardstick, wealth) is dishonest. If you'd go out and find someone that has actually managed to achieve such a state of mind from hardship (say Nelson Mandela) then I'd be all for it. My life experiences are one long series of bold moves, and I wouldn't have it any other way but I'm very careful to tell other people to 'do as I do', everything has its price and you have to make people aware of the price before you tell them to purchase the wares. I think you are completely misreading me in what I wrote back then, I made it pretty clear in this sentence: "Yes, so it worked for you. Great. It worked for me too, 23 years ago, one idle day in July. But that does not mean it will work for everyone." To put out the advice to quit to someone without further knowledge of their situation is short-sighted, at a minimum you should spend a good bit of time to ascertain that that really is what's best for them, off the cuff advice like that can be very harmful. If you want to know more about my life experiences feel free to read: http://jacquesmattheij.com/ .
mkl · 2026-04-10
jacquesm did that impressively 9 years ago: https://jacquesmattheij.com/sorting-two-metric-tons-of-lego, https://news.ycombinator.com/item?id=14226889 (follow-up posts with more details: https://news.ycombinator.com/item?id=14280569, https://news.ycombinator.com/item?id=14654223). It doesn't solve the picking-up-off-the-floor problem.
LeonB · 2023-02-13
> Do you realize I’m the idiot who came up with live video in the browser to begin with Ok - that really surprised me and from anyone else I would’ve dismissed it as hyperbole… after some digging I ended up reading this incredible story — https://jacquesmattheij.com/story-behind-wwcom-camaradescom/ Amazing adventure!
msl · 2022-07-27
Jacques Mattheij has got the first part covered (kind of): https://jacquesmattheij.com/sorting-two-metric-tons-of-lego/ https://jacquesmattheij.com/sorting-lego-many-questions-and-this-is-wh… for a follow up and more links.
gugagore · 2022-04-06
I wasn't familiar, so I searched and found your great account of the history! https://jacquesmattheij.com/story-behind-wwcom-camaradescom/
effingwewt · 2021-08-30
Please do, it's been a while and man the lego sorting[1] was amazing! [1] https://jacquesmattheij.com/sorting-two-metric-tons-of-lego/
pflats · 2019-11-26
This reminds me: A few years ago, Jacques Mattheij accidentally won a lot more bulk lego auctions than he meant to. His story of sorting through them with a homemade hopper/camera/ML/computer vision showed up on HN. It's still a good read today. It begins at: https://jacquesmattheij.com/sorting-two-metric-tons-of-lego/
wglb · 2018-08-31
I recommend reading https://jacquesmattheij.com/gdpr-hysteria/ for a more detailed understanding of how you might be exposed, and what your obligations are. Some of your notes have been addressed by other commenters in the thread, but overall many of your points directly contradict what is discussed by Jacques. You probably want to evaluate your risk of exposure with your current approach.
celticninja · 2018-05-24
Probably worth reading this. https://jacquesmattheij.com/gdpr-hysteria EU agencies would prefer compliance over fines and would work with businesses to help them. As the article suggests, prosecution/fines will come when all other avenues are exhausted not the starting point.
goberoi · 2017-07-27
These aren't really great for learning about computer vision or deep learning, but are great for building projects that require image classification. E.g., recall the awesome project for lego sorting by jacquesm[0] ? He built his own model using Keras and Tensorflow, but you may be able to achieve similar results by using Clarifai's feature to train your own models with no understanding of deep learning. This is great if your goal is to build a thing, like a lego sorter, but not so much if you want to learn how to build a state of the art image classifier. If you're interested in learning about computer vision or deep learning, I recommend searching this site to find threads that cover that extensively. Good luck! [0] https://jacquesmattheij.com/sorting-lego-the-software-side
His blog: http://www.jacquesmattheij.com/ In case it isn't obvious to the OP, the suggestion here is based (in part) on the fact that Jacques Mattheij is also Dutch.
metasean · 2016-02-15
Groups, government or otherwise, have done great evil with very little information (by today's standards) - http://jacquesmattheij.com/if-you-have-nothing-to-hide
blacksmythe · 2016-02-01
>> For all intents and purposes we have lost the 1800s technology of community barn raising. At least we as defined as HN participants. I am pretty sure 'we' havent (in the sense 'we' = sum of HN member knowledge). HN includes some pretty amazing members: http://jacquesmattheij.com/how-to-build-a-windmill I don't have links handy, but HN includes people who homestead, and practice many mostly-lost arts.
chbrown · 2015-07-17
I'm kind of surprised that Linus uses Gmail. It's likely that he'll actually catch a Googler's attention, but for many of us, user feedback is not an option. @jacquesm's http://jacquesmattheij.com/ham-or-spam-gmail-not-to-be-trusted-for-imp… is another recent instance — but again, there's no call to action. Gmail is great for some people, but I prefer having more control, and I highly recommend https://FastMail.com if Gmail is failing to meet your needs.
davidw · 2015-05-01
> How do I ask for equity and how much should I ask for as the first hire (technical employee of a non-technical founder)? That may not be a bad deal, but there are some warning flags that it raises: * What does the non-tech guy bring to the table? Do they have hard evidence of their ability to make a company successful? * This is well worth your time to read: http://jacquesmattheij.com/first-employee-or-cofounder
hkailahi · 2015-03-29
> That was the intention from the beginning. It's so inspiring hearing about people who had unbelievable expectations from the very beginning. I always hear about the opposite – younger Zuckerberg expecting someone bigger like Microsoft/Google/etc to build the "real Facebook" [1], Larry and Sergey thinking they'd never make it to be as big as Shawn Fanning [2], etc. Those are all extremely interesting, but I'm much more interested in what goes on with people who call it from the beginning. I'd love it if you wrote a book. Do you have a blog? [1] https://youtu.be/MGsalg2f9js?t=13m24s [2] http://www.jacquesmattheij.com/startup-school-2010/ron-conway
JacobAldridge · 2014-10-04
Take a leaf from our own Jacquesm and consider a Journeyman experience: http://jacquesmattheij.com/will-work-for-food-and-lodging Here's one of Jacques's follow-up articles - explore his site for more http://jacquesmattheij.com/journeyman-project-trip-1-united-kingdom
anishkothari · 2014-05-16
This is a great idea. Jacques Matteij did something like this recently. Check out this post and his blog for his experiences. http://jacquesmattheij.com/journeyman-project-trip-1-united-kingdom
krrishd · 2013-12-05
Nothing's wrong with it, it's just recommended that you post it as a link rather than a text post with a link in it, as it will get more exposure on the front page and you will get more feedback. http://jacquesmattheij.com/The+Unofficial+HN+FAQ: If you are posting a ‘rate my startup’ post as a self post you are missing out on a lot of valuable feedback because likely your post will not make it to the homepage. I would suggest you post your site as a link and put your extra information about the project in the first comment.
FD3SA · 2013-05-31
I've thought about it and I believe this is the most likely solution. The vehicle would remain aerodynamically subsonic, but could attain supersonic speeds as the air in the tunnel speeds up. This would also allow vehicles to follow one another without too much separation. Turbo fans can be used to keep the air moving throughout the loop. If enough vehicles are running at full speed, the system will always be "pressurized" as the vehicles themselves will accelerate the air in the loop. Passenger/cargo loading would occur outside the loop (a fork) and would be brought up to speed by the power rail and inserted into the loop. EDIT - It appears jacquesmattheij agrees with us: http://jacquesmattheij.com/elon-musk-and-the-hyperloop
shared4you · 2013-05-21
I recommend you read the unofficial FAQ [1] and the official guidelines [2]. In short, you can't downvote a story but you can "flag" it, which penalizes by pushing it down the page. You can downvote comments if you have atleast 500 karma. [1]: http://jacquesmattheij.com/The+Unofficial+HN+FAQ [2]: http://ycombinator.com/newsguidelines.html
DanielRibeiro · 2013-04-06
jaquesm also wrote an amazing and comprehensive article on this topic: How to Sell Your Company[1] [1] http://www.jacquesmattheij.com/How+To+Sell+Your+Company
JoachimSchipper · 2013-01-23
To the best of my knowledge, this does not exist. Ensure that you are at least familiar with http://news.ycombinator.com/leaders, http://www.hnsearch.com/api, http://jacquesmattheij.com/The+Unofficial+HN+FAQ#api and the rest of that document, be ready to be asked to stop, and enjoy! (This doesn't look like a trivial application of any of the APIs above, by the way.)
ivancdg · 2012-08-08
Jacques Mattheij's blog posts on burnout are very helpful. I recommend reading them and re-reading them: http://jacquesmattheij.com/Are+you+suffering+from+burn-out http://jacquesmattheij.com/dealing+with+burn+out There are various useful discussions in the HN archives, including this one: http://news.ycombinator.com/item?id=2300244 mrcharles's comment rings in my head to this day: "The first thing I've learned is that I can't accurately judge my limits."
dannyr · 2012-06-07
"Hmmm. Would love to say but worried abouthttp://www.jacquesmattheij.com/So+you+are+making+good+money+now+STFU ---------------- I thought you're not making money. Post your app here. I bet a lot of people would be able to point out why you're not making money on Android.
masnick · 2012-04-29
You're right that using an A record isn't great because your hosting provider loses the flexibility of being able to change IP addresses. This article explains it really well: https://devcenter.heroku.com/articles/avoiding-naked-domains-dns-areco… My solution is to use CloudFlare for my DNS (it's free, why not?) and use their "page rules" feature to do a 301 (permanent) redirect from domain.com/* to www.domain.com/$1. You can see what happens if you run `curl -I maxmasnick.com`. dnsimple.com (another DNS provider) also lets you add a "URL" record, which also is a 301 redirect. One should be careful with 301 redirects because the are cached locally and quite thus permanent (see: http://www.jacquesmattheij.com/301+redirects+-+a+dangerous+one+way+str… But in this case I think this is what you want.
peteforde · 2012-03-26
You're welcome to your opinion, but I respectfully disagree. Frankly, I wouldn't be employed if anything you said was absolutely true. My firm is hired to implement concepts as working products. I first help the clients decide whether their idea has legs and help them refine the vision. My team builds out v1 over a period of months, and then we generally hand off to an internal team or another firm that will provide ongoing support. We maintain a pool of excellent resources that excel in maintenance projects but don't have the capacity or interest to be architects. http://jacquesmattheij.com/The+Starter+the+Architect+the+Debugger+and+… was pointed out to me as another recent and good article on the same subject. Finally, I assure you that successful Starters are excellent networkers and communicators. They have to be, or else the project will never leave the gates.
nchlswu · 2012-03-25
Here's a relevant article that was on HN recently: http://jacquesmattheij.com/The+Starter+the+Architect+the+Debugger+and+… I think the idea of a person who does things from start to finish his highly romanticized and a lot less comon than whwat you might think. It's great for you to have the abilities to, but I don't think it's a reality to most.
mbesto · 2011-12-26
> Excellent work, Dick. This isn't reddit. http://jacquesmattheij.com/The+Unofficial+HN+FAQ#downvoted

Keyboard shortcuts

/Search
j kNext / previous blog
EnterOpen selected blog
vVisit the blog site
fFollow / unfollow
lSwitch grid / list view
dSwitch dark mode
g hHome
g pTop posts
g tTopics
g fFollowing
g lLiked
g yHistory
g qFAQ
EscBack / close