Show HN: Every mountain, building and tree shadow mapped for any date and time https://ift.tt/PdU7Xu3

Show HN: Every mountain, building and tree shadow mapped for any date and time 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/SkfBDWh https://shademap.app May 31, 2024 at 01:40AM

Show HN: I made an open-source Replit https://ift.tt/cdg0Hle

Show HN: I made an open-source Replit I spent the past few weeks making an open source cloud code editing environment with an AI copilot and multiplayer collaboration! It's fully self-hostable in 5-10 minutes. There's a lot of minor improvements to be made, and some are already listed in the Github issues. Let me know what you think and feel free to try it out. https://ift.tt/VMpdwJR May 31, 2024 at 07:07AM

Show HN: Interactive text game from a printable boardgame (by Taproot Wizards) https://ift.tt/37O1eYM

Show HN: Interactive text game from a printable boardgame (by Taproot Wizards) https://ift.tt/WeNXSVH May 30, 2024 at 10:00PM

Show HN: I've build my RFID poker table for less than $300 https://ift.tt/yCIXtdJ

Show HN: I've build my RFID poker table for less than $300 I started my own side hustle building a smart poker table At this stage, I have a working prototype that can generate an overlay with player's and pot cards percentages, hand history, video editing, and more Here's a demo video: https://www.youtube.com/watch?v=5QU8MC7q8FQ https://ift.tt/rNWOIlX May 31, 2024 at 02:03AM

Show HN: Kanzi, fast lossless data compression https://ift.tt/G6dt1SN

Show HN: Kanzi, fast lossless data compression Give it a try. Let me know what you think. https://ift.tt/W4Te1Op May 30, 2024 at 11:22PM

Show HN: Brisk a complete CI system is now Open Source https://ift.tt/sN9L2wf

Show HN: Brisk a complete CI system is now Open Source Brisk is a complete CI system that runs your test suite in seconds. The main speedup over standard CI systems (think CircleCI or Github Actions) is that we maintain your test environments and don't rebuild them on each test run. This allows you to scale up your workers without just scaling up the build time on each test run. Brisk can be run from your local dev environment (the command line or VS Code) allowing your to access the speed of many servers from your local machine or it can be run as part of a traditional CI/CD pipeline (in Github actions etc). I've been working on Brisk for the last few years and I've decided to open source the project. You can now run your own super fast CI service on your own hardware or in your own cloud. https://ift.tt/HW84or0 https://ift.tt/OBrc9gy May 30, 2024 at 04:46AM

Show HN: ChatGPT Personal Secretary PoC https://ift.tt/CA6U9La

Show HN: ChatGPT Personal Secretary PoC A proof of concept using LangGraph and ChatGPT to create a personal secretary that can manage your calendar and address book. Fun to build, and works pretty well, just not sure who would use it or how scaleable it would be. https://ift.tt/quYDPNr May 30, 2024 at 12:30AM