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Show HN: MMOndrian

https://mmondrian.com/
35•neural_thing•10h ago
Made a collaborative, persistent state Mondrian-style painting editor. Feedback welcome!

Comments

remram•4h ago
Removing lines doesn't seem to work, it flashes out but then stays in.
ponsfrilus•1h ago
Have to click on black lines. They can be moved too.
remram•41m ago
I did, it flash out, then it comes back in.
pimlottc•4h ago
Misread this as MMOndain [0] and thought it was going to have to do with the Ultima games

0: https://wiki.ultimacodex.com/wiki/Mondain

brulard•4h ago
My edits disappear either right away, or I can recolor for 20 seconds and then it gets reloaded with the previous colors.
neural_thing•3h ago
I think I'm having stability issues with lots of users, will try to figure it out, sorry
mmazing•3h ago
It looks like you need to batch your updates and not tie them directly to UI actions, imo!

Cool project!

ASalazarMX•2h ago
OMG I thought I was fighting with someone really fast.
riidom•2h ago
I thought so too! Maybe it was true
brulard•1h ago
No need to apologize, just wanted to let you know there is an issue.
dunham•4h ago
I can't seem to pan, it would be nice if the zooming would zoom in to the mouse location. (I did manage to write HI near the left edge though.)
juancroldan•3h ago
Love the idea, silly as it is! What came before, the app idea or the pun?
neural_thing•3h ago
Pun
detourdog•3h ago
Does this use the DeStijl manifesto. There were actual rules about how to use color and lines.
thunkingdeep•2h ago
Doesn’t seem to work, just unclicks whatever I click.
brookst•2h ago
Same. I thought I was in a battle of wills, and I guess I was, just not the way I thought.
Heliodex•1h ago
Awesome! I haven't had this much fun since r/Place.

The ultimate territorial acquisition strategy seems to be as follows:

- Pick a desired colour

- Choose a place to found your empire, ideally somewhere with a lot of large rectangles and a colour that takes few clicks to turn to yours

- Left click tiles to capture them for your colour

- Right click those same tiles many times to subdivide them into areas much smaller. What took you 1 click to capture will now take anyone else hundreds!

dmwood•52m ago
I like this very much. BUT: What I cannot save I do not remember (quoth the Old Guy). Any way to save these images as SVG. (Screen grabs are less satisfactory.)

LaborBerlin: State-of-the-Art 16mm Projector

https://www.filmlabs.org/wiki/en/meetings_projects/spectral/laborberlin16mmprojector/start
46•audionerd•1h ago•2 comments

Denmark's Archaeology Experiment Is Paying Off in Gold and Knowledge

https://www.scientificamerican.com/article/denmark-let-amateurs-dig-for-treasure-and-it-paid-off/
44•sohkamyung•3d ago•13 comments

Compact Representations for Arrays in Lua [pdf]

https://sol.sbc.org.br/index.php/sblp/article/view/30252/30059
17•tkhattra•2d ago•3 comments

AllTracker: Efficient Dense Point Tracking at High Resolution

https://alltracker.github.io/
27•lnyan•4h ago•1 comments

ARIA, the UK's Bet to Build Scientific Revolutions

https://www.asimov.press/p/aria
32•almost-exactly•4h ago•7 comments

Scaling our observability platform by embracing wide events and replacing OTel

https://clickhouse.com/blog/scaling-observability-beyond-100pb-wide-events-replacing-otel
161•valyala•11h ago•62 comments

Using Microsoft's New CLI Text Editor on Ubuntu

https://www.omgubuntu.co.uk/2025/06/microsoft-edit-text-editor-ubuntu
192•jandeboevrie•3d ago•195 comments

Balatro for the Nintendo E-Reader

https://mattgreer.dev/blog/balatro-for-the-nintendo-ereader/
59•arantius•4h ago•12 comments

Delta Chat is a decentralized and secure messenger app

https://delta.chat/en/
212•Bluestein•14h ago•106 comments

The Nyanja new PC-Engine/TurboGrafx 16-bit console game in development

https://sarupro.itch.io/thenyanja
23•retro_guy•2d ago•0 comments

Samsung embeds IronSource spyware app on phones across WANA

https://smex.org/open-letter-to-samsung-end-forced-israeli-app-installations-in-the-wana-region/
645•the-anarchist•18h ago•388 comments

Airpass – easily overcome WiFi time limits

https://airpass.tiagoalves.me/
197•herbertl•3d ago•146 comments

Show HN: MMOndrian

https://mmondrian.com/
35•neural_thing•10h ago•18 comments

Weave (YC W25) is hiring a founding AI engineer

https://www.ycombinator.com/companies/weave-3/jobs/SqFnIFE-founding-ai-engineer
1•adchurch•4h ago

YouTube's new anti-adblock measures

https://iter.ca/post/yt-adblock/
843•smitop•1d ago•1163 comments

Phoenix.new – Remote AI Runtime for Phoenix

https://fly.io/blog/phoenix-new-the-remote-ai-runtime/
526•wut42•1d ago•236 comments

Harper – an open-source alternative to Grammarly

https://writewithharper.com
539•ReadCarlBarks•1d ago•144 comments

'Gwada negative': French scientists find new blood type in woman

https://www.lemonde.fr/en/science/article/2025/06/21/gwada-negative-french-scientists-find-new-blood-type-in-woman_6742577_10.html
123•spidersouris•13h ago•55 comments

Tell HN: Beware confidentiality agreements that act as lifetime non competes

132•throwarayes•5h ago•70 comments

AbsenceBench: Language models can't tell what's missing

https://arxiv.org/abs/2506.11440
302•JnBrymn•22h ago•77 comments

Plastic bag bans and fees reduce harmful bag litter on shorelines

https://www.science.org/doi/10.1126/science.adp9274
212•miles•21h ago•130 comments

AI Is Ushering in the 'Tiny Team' Era in Silicon Valley

https://www.bloomberg.com/news/articles/2025-06-20/ai-is-ushering-in-the-tiny-team-era-in-silicon-valley
37•kjhughes•2h ago•28 comments

Life as Slime

https://www.asimov.press/p/slime
46•surprisetalk•4d ago•28 comments

Microsoft suspended the email account of an ICC prosecutor at The Hague

https://www.nytimes.com/2025/06/20/technology/us-tech-europe-microsoft-trump-icc.html
424•blinding-streak•9h ago•259 comments

Augmented Vertex Block Descent (AVBD)

https://graphics.cs.utah.edu/research/projects/avbd/
72•bobajeff•17h ago•6 comments

Captain Cook's missing ship found after sinking 250 years ago

https://www.independent.co.uk/news/science/captain-cook-missing-ship-found-hms-endeavour-b2771322.html
141•rmason•4d ago•44 comments

Visualizing environmental costs of war in Hayao Miyazaki's Nausicaä

https://jgeekstudies.org/2025/06/20/wilted-lands-and-wounded-worlds-visualizing-environmental-costs-of-war-in-hayao-miyazakis-nausicaa-of-the-valley-of-the-wind/
244•zdw•1d ago•65 comments

You say 'silo' as if it were a bad thing

https://hollisrobbinsanecdotal.substack.com/p/you-say-silo-as-if-it-were-a-bad
17•HR01•58m ago•2 comments

Show HN: lambda-nat-proxy – Serverless proxy using Lambda and UDP NAT punching

https://github.com/dan-v/lambda-nat-proxy
15•danvittegleo•4d ago•8 comments

Cosmoe: BeOS Class Library on Top of Wayland

https://cosmoe.org/index.html
155•Bogdanp•12h ago•61 comments