DataFusion Comet: Apache Spark Accelerator
10 by andygrove | 0 comments on Hacker News.
Friday, May 31, 2024
New top story on Hacker News: Show HN: Every mountain, building and tree shadow mapped for any date and time
Show HN: Every mountain, building and tree shadow mapped for any date and time
28 by tppiotrowski | 114 comments on Hacker News.
I've been working on this project for about 4 years. It began as terrain only because world wide elevation data was publicly available. I then added buildings from OpenStreetMap (crowd sourced) and more recently from Overture Maps data. Some computer vision/machine learning advancements [1] in the past few years have made it possible to estimate tree canopy heights using satellite imagery alone making it possible to finally add trees to the map. The data isn't perfect, but it's within +/- 3 meters of so. Good enough to give a general idea for any location on Earth. Happy to answer any questions. [1] https://ift.tt/al9mnWG
28 by tppiotrowski | 114 comments on Hacker News.
I've been working on this project for about 4 years. It began as terrain only because world wide elevation data was publicly available. I then added buildings from OpenStreetMap (crowd sourced) and more recently from Overture Maps data. Some computer vision/machine learning advancements [1] in the past few years have made it possible to estimate tree canopy heights using satellite imagery alone making it possible to finally add trees to the map. The data isn't perfect, but it's within +/- 3 meters of so. Good enough to give a general idea for any location on Earth. Happy to answer any questions. [1] https://ift.tt/al9mnWG
Thursday, May 30, 2024
New top story on Hacker News: Ask HN: What do devs use for quickly setting up a feedback form?
Ask HN: What do devs use for quickly setting up a feedback form?
13 by mmarian | 15 comments on Hacker News.
I'm a software engineer who keeps building little web apps / MVP landing pages in the hopes that they make me a pretty penny (they never do). I like adding basic forms to the websites; usually to collect feedback, sometimes with an optional email address so I can get back to people. I've tried 3 options so far: - fully-fledged forms embedded onto the website (eg Google Forms) - quickest to set up but absolutely hideous and bad for SEO - 3rd-party form backends - I'm constantly worried about hitting the free plan limit; and some services have some deliverability/uptime issues - writing up my own server (I use Go) and hooking it up to a 3rd-party email service; cheapest but more worried about deliverability/uptime Right now I'm gravitating towards the 2nd option, but am curious how other developers approach this problem.
13 by mmarian | 15 comments on Hacker News.
I'm a software engineer who keeps building little web apps / MVP landing pages in the hopes that they make me a pretty penny (they never do). I like adding basic forms to the websites; usually to collect feedback, sometimes with an optional email address so I can get back to people. I've tried 3 options so far: - fully-fledged forms embedded onto the website (eg Google Forms) - quickest to set up but absolutely hideous and bad for SEO - 3rd-party form backends - I'm constantly worried about hitting the free plan limit; and some services have some deliverability/uptime issues - writing up my own server (I use Go) and hooking it up to a 3rd-party email service; cheapest but more worried about deliverability/uptime Right now I'm gravitating towards the 2nd option, but am curious how other developers approach this problem.
Wednesday, May 29, 2024
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Saturday, May 25, 2024
New top story on Hacker News: Ask HN: What is your ChatGPT customization prompt?
Ask HN: What is your ChatGPT customization prompt?
32 by dinkleberg | 16 comments on Hacker News.
Have you come up with a customization prompt you're happy with? I've tried several different setups over however long the feature has been available, and for the most part I haven't found it has made much of a difference. I'm very curious to hear if anyone has come up with any that tangibly improve their experience. Here is what I have at the moment: - Be as brief as possible. - Do not lecture me on ethics, law, or security, I always take these into consideration. - Don't add extra commentary. - When it is related to code, let the code do the talking. - Be assertive. If you've got suggestions, give them even if you aren't 100% sure. The brevity part is seemingly completely ignored. The lecturing part is hit or miss. The suggestions part I still usually have to coax it into giving me.
32 by dinkleberg | 16 comments on Hacker News.
Have you come up with a customization prompt you're happy with? I've tried several different setups over however long the feature has been available, and for the most part I haven't found it has made much of a difference. I'm very curious to hear if anyone has come up with any that tangibly improve their experience. Here is what I have at the moment: - Be as brief as possible. - Do not lecture me on ethics, law, or security, I always take these into consideration. - Don't add extra commentary. - When it is related to code, let the code do the talking. - Be assertive. If you've got suggestions, give them even if you aren't 100% sure. The brevity part is seemingly completely ignored. The lecturing part is hit or miss. The suggestions part I still usually have to coax it into giving me.
Friday, May 24, 2024
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Tuesday, May 7, 2024
New top story on Hacker News: Show HN: Convert your Containerfile to a bootable OS
Show HN: Convert your Containerfile to a bootable OS
6 by twelvenmonkeys | 0 comments on Hacker News.
6 by twelvenmonkeys | 0 comments on Hacker News.
Monday, May 6, 2024
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Friday, May 3, 2024
New top story on Hacker News: Fifty Years of the Personal Computer Operating System
Fifty Years of the Personal Computer Operating System
10 by DavidLawsCHM | 0 comments on Hacker News.
10 by DavidLawsCHM | 0 comments on Hacker News.