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Posted by dnw 1/25/2026

A macOS app that blurs your screen when you slouch(github.com)
692 points | 223 commentspage 3
Eric_WVGG 1/26/2026|
I love this, but I’d rather have an indicator in the menu bar, an app notification, or maybe a nice flow around the "notch" like NotchNook. (https://lo.cafe/notchnook)

Can't really afford to play with an app that would have such an obvious hit on productivity and mental clarity.

accidc 1/26/2026||
Very cool. I did something extremely similar for a personal project.

However, I was not familiar with Swift, the app was more or less vibe coded.

My next goal was to learn swift patterns to refactor the app into something that was understood and robust.

I will be reading though your sources to understand production quality Swift!!

kneel 1/25/2026||
This is cool, I built something similar a while back. I originally wanted the screen to dim when I slouched but I couldn't get access to dimming on OSX. I ended up just playing a noise when I slouched. It became so distracting I stopped using it.

The blurring of the screen is a much better idea.

sahiljagtapyc 1/25/2026||
I wonder if this is less about “bad posture” and more about how people unconsciously optimize for stability when thinking deeply. When I’m reasoning through something hard, I tend to lock into whatever position minimizes micro-adjustments - even if it looks terrible ergonomically.
rendaw 1/26/2026||
Slouching is caused by the design of chairs and soreness in a single sitting position. I have a love-hate relationship with my Salli chair, but angle your legs down and slouching is no longer an issue, to the point where you don't even need a back on your chair.
coolandsmartrr 1/26/2026||
I think this is an interesting application of computer vision for healthcare purposes.

I've noticed that the app tends to use 15% of my CPU constantly. I wonder if there is room to improve efficiency so that the app does not hog resources.

kusokurae 1/26/2026|
And herein lies the rub: higher up in the comments we've got people Very Excited that this was co-written with a bot.
Simran-B 1/26/2026||
No image in the readme, bummer.
halapro 1/26/2026|
Why are programmers so bad at this? It's never been easier to take and share screenshots, but a lot of technical people would rather write and have you read 500 words than post a single screenshot. Boggles my mind.
cpt_sobel 1/26/2026||
Maybe it blurs on a level lower than what the screenshot can capture
altern8 1/25/2026||
I can't seem to open it. It keeps saying "Apple could not verify “Posturr.app” is free of malware that may harm your Mac or compromise your privacy.".

I tried opening by right-cliking on the app file, holding option, etc.

I'm on Sequoia 15.7.3 (24G419)

peesem 1/25/2026||
you have to go into your Privacy & Security settings and scroll down until you see something like "Posturr.app was blocked to protect your Mac." and then press "Open Anyway"
altern8 1/25/2026||
Ohhh... Thank you!

Is this new? In previous version I could just right-click and it would open it.

tom_ 1/25/2026||
Looks like this changed for Sequoia: https://support.apple.com/en-gb/guide/mac-help/mh40616/15.0/...

And looks like Sonoma was the last version to support the right click menu: https://support.apple.com/en-gb/guide/mac-help/mh40616/14.0/...

tjohnell 1/25/2026|||
This should no longer be a problem. I am notarizing the app!
illusive4 1/25/2026||
[dead]
taf2 1/25/2026|
Love it - I did something like this for when codex is done - a script runs to detect if I’m at my computer or not and then notify my phone if I walked away that it’s done - mostly so I can get back to slouching ;)
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