This story was originally published on HackerNoon at: https://hackernoon.com/i-turned-my-eyes-into-a-game-controller-with-nothing-but-a-webcam.
How I built a gaze-controlled 3D camera (and an eye-aim shooter) using MediaPipe, OpenCV, and Pygame, and most importantly no $1,000 eye-tracker required.
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This story was written by: @vishwagw. Learn more about this writer by checking @vishwagw's about page, and for more stories, please visit hackernoon.com.

Eye-tracking has always felt like a luxury feature. The good hardware, such as Tobii bars, dedicated IR trackers, costs more than the games you'd play with it, and every tutorial seems to assume you already own one. So I asked the obvious question: how far can I get with the webcam that's already sitting on top of my monitor?

This story was originally published on HackerNoon at: https://hackernoon.com/the-6-questions-i-answer-before-giving-an-ai-agent-tools.
A practical six-field permission card for safer AI agents: define goals, access, approval gates, stop conditions, and evidence before a live run.
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This story was written by: @mehmetkocabas. Learn more about this writer by checking @mehmetkocabas's about page, and for more stories, please visit hackernoon.com.

Before you give an AI agent tools, define its goal, reading and writing access, approval points, stop conditions, and the evidence it must leave.

This story was originally published on HackerNoon at: https://hackernoon.com/from-hand-to-throttle-building-a-gesture-controlled-drone-the-right-way.
How can hand pose estimation be used for controlling drones with computer vision technology.
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This story was written by: @vishwagw. Learn more about this writer by checking @vishwagw's about page, and for more stories, please visit hackernoon.com.

A gesture-controlled drone is a three-stage pipeline, not a one-liner. Stage 1: detect hand landmarks in real time (MediaPipe gives you 21 keypoints per hand). Stage 2 is the part most tutorials skip and turn those landmarks into a discrete gesture (open palm, fist, pointing), using either simple finger-state rules or a small neural net, with a buffer so noise doesn't fire commands. Stage 3: map each gesture to a drone command and send it over the drone's SDK (djitellopy for a DJI Tello), wrapped in a safety layer. Detection is the easy 20%. Classification, debouncing, and safe command mapping are the 80% that actually flies.

This story was originally published on HackerNoon at: https://hackernoon.com/from-raw-html-dumps-to-a-cli-how-we-built-llazyemail.
The goal was to eliminate the repetitive work between writing an email and sending it.
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This story was written by: @arthurtkachenko-rm2m8. Learn more about this writer by checking @arthurtkachenko-rm2m8's about page, and for more stories, please visit hackernoon.com.

A $500 junior-dev script failed at scale during COVID's Black Friday rush. That failure became Lazy Email, built on $0.10/1,000-email SES.

This story was originally published on HackerNoon at: https://hackernoon.com/balaji-srinivasan-has-no-army.
He built a country with a currency, a curriculum, and four hundred citizens. He did not build an army. A municipal council in Johor took his flag down.
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This story was written by: @zbruceli. Learn more about this writer by checking @zbruceli's about page, and for more stories, please visit hackernoon.com.

He built a country with a currency, a curriculum, and four hundred citizens. He did not build an army. A municipal council in Johor took his flag down.

This story was originally published on HackerNoon at: https://hackernoon.com/what-spacexs-empty-insider-filing-record-says-about-lock-up-expiries.
SpaceX affiliates became eligible to sell after a lock-up release, but SEC filings show no post-listing insider transactions so far.
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This story was written by: @chanahn. Learn more about this writer by checking @chanahn's about page, and for more stories, please visit hackernoon.com.

SpaceX affiliates became eligible to sell after a lock-up release, but SEC filings show no post-listing insider transactions so far.

This story was originally published on HackerNoon at: https://hackernoon.com/the-boring-backend-problem-nobody-talks-about-automating-expense-claims.
How OCR and rules-based automation are turning slow employee benefits claims into near-instant reimbursements, and why the eligibility logic is the hard part.
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This story was written by: @bablisundariya. Learn more about this writer by checking @bablisundariya's about page, and for more stories, please visit hackernoon.com.

Manual benefits claims are slow because of messy eligibility rules, not the tech. OCR is easy; automating eligibility logic is the hard part. Get that right, and reimbursements go from weeks to under 48 hours.

This story was originally published on HackerNoon at: https://hackernoon.com/automated-process-robotics-in-manufacturing-from-competitive-advantage-to-necessity.
Soon industrialized countries that lead in robotics could see factory productivity increase significantly
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This story was written by: @arthurtkachenko-rm2m8. Learn more about this writer by checking @arthurtkachenko-rm2m8's about page, and for more stories, please visit hackernoon.com.

The future of manufacturing will not be defined by people versus robots. The most successful factories will combine both: robots handling repetitive and hazardous work, and people providing judgment, creativity, technical expertise, and continuous improvement.