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February 09, 2026
Show HN: Algorithmically finding the longest line of sight on Earth
332 by tombh | 133 comments on Hacker News.
We're Tom and Ryan and we teamed up to build an algorithm with Rust and SIMD to exhaustively search for the longest line of sight on the planet. We can confirm that a previously speculated view between Pik Dankova in Kyrgyzstan and the Hindu Kush in China is indeed the longest, at 530km. We go into all the details at https://alltheviews.world And there's an interactive map with over 1 billion longest lines, covering the whole world at https://map.alltheviews.world Just click on any point and it'll load its longest line of sight. Some of you may remember Tom's post[1] from a few months ago about how to efficiently pack visibility tiles for computing the entire planet. Well now it's done. The compute run itself took 100s of AMD Turin cores, 100s of GBs of RAM, a few TBs of disk and 2 days of constant runtime on multiple machines. If you are interested in the technical details, Ryan and I have written extensively about the algorithm and pipeline that got us here: * Tom's blog post: https://ift.tt/RrPBjuU * Ryan's technical breakdown: https://ift.tt/gjYo1Zr This was a labor of love and we hope it inspires you both technically and naturally, to get you out seeing some of these vast views for yourselves! 1. https://ift.tt/Vh7ZR8m

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February 08, 2026
DoNotNotify is now Open Source
356 by awaaz | 47 comments on Hacker News.
A month ago, I submitted my app "DoNotNotify" to control Android notifications on Show HN [0], and it trended on the front page for a day. I was happy, but the most upvoted comments on the thread were asking for the app to be open sourced, since it dealt with system-wide notifications. My promises weren't good enough, and the community wanted more! Why didn't I open source it in the first place? Linux has been by primary driver for more than a decade. I genuinely believe in the philosophy, and have always wanted to give back to the community. The primary reason, probably, was because I was ashamed that I had 90% vibe-coded the app. More than 2 decades of writing software, and my first contribution to FOSS would be AI-generated code? Would it withstand even the most minimal of scrutiny? Would by (unknown) name forever be tarnished? I exaggerate, but only slightly :) So, yesterday, after a fair bit of trepidation, I changed the github repo visibility to public and put up a announcement on the app's website [1]. I have also submitted the app to F-Droid [2]. As before, I welcome the community's feedback and suggestions! [0] https://ift.tt/SlHwRUz [1] https://ift.tt/QkcLUNh [2] https://ift.tt/N4uojCb -- Anuj Jain

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