Show HN: Mark Zuckerberg is doing a live AMA on Twitch (AI) https://ift.tt/fqKUHoS

Show HN: Mark Zuckerberg is doing a live AMA on Twitch (AI) Hey HN! I built a 24/7 Twitch stream where an AI clone of Mark Zuckerberg is doing a live AMA with the chat lol. Twitch: https://ift.tt/6SwNxMd You can ask Zuck any question in the chat, and he'll answer you live. About a day ago, I also built a 24/7 interactive livestream of "Paul Graham" doing an AMA on twitch: https://ift.tt/Ny5TrBm Have fun! :D https://ift.tt/6SwNxMd July 14, 2023 at 07:15AM

Show HN: AI-Generated Vector Art https://ift.tt/POeXxmy

Show HN: AI-Generated Vector Art https://ift.tt/gdBKSDC July 14, 2023 at 02:40AM

Show HN: Roast My Career with Elon Musk AI https://ift.tt/BTwzuXy

Show HN: Roast My Career with Elon Musk AI Get Your Career Roasted by Elon Musk, Donald Trump, The Rock or even Snoop Dogg. Hear burning truths, and then cry.. https://ift.tt/XFJNp0D July 14, 2023 at 03:45AM

Show HN: CodSpeed – Continuous Performance Measurement https://ift.tt/AXYMgqa

Show HN: CodSpeed – Continuous Performance Measurement Hi HN! We’re Arthur and Adrien from CodSpeed. We’re building a tool measuring software performance before any production deployment, catching performance regressions before they hit production environments and reporting performance changes directly in Pull Request comments. It’s kind of like Codecov but for performance measurement. Today, the go to solution to measure performance is probably to use an APM(DataDog, Sentry, …), continuously analyzing your production environment. However, since those solutions are operating on real environments they need real users to experience poor performance in order to report issues and unfortunately, performance remains an afterthought appearing only at the end of the development cycle. Another possibility to measure performance is to create benchmarks while developing and to run them on a regular basis to have an idea of the performance trend of your project. However, with this approach, the variance in the results creates a lot of noise and it’s rarely possible to compare your results with the ones from a co-worker or a production environment. To make consistent performance measurement as easy as unit testing and fully integrated in CI workflows, we chose a benchmark based solution. And, to eliminate the usual variance associated with running them, we measure the number of instructions and memory/cache accesses through CPU instrumentation performed with Valgrind. This approach gives repeatable and consistent results that couldn’t be obtained with a time based statistical approach, especially in extremely noisy CI and cloud environments. We have been in closed beta for a few months, already being used by popular open-source projects such as Prisma and Pydantic. Notably, CodSpeed helped Pydantic through their Rust migration, empowering them to make the library 17x faster: https://ift.tt/JmPz4Gs... Today, we’re super excited to finally make the product available to everyone. We currently support Python, Node.js and Rust and are looking forward to integrate with more languages soon. The product is and will be free forever for open-source projects. Also, we have a per-seat pricing for private repository usage. We have a lot of exciting features planned regarding additional integrations, such as Database and GPU integrations that should come in upcoming months. Don’t hesitate to try out the product and give your honest feedback. We’re looking forward to your comments! https://codspeed.io/ July 11, 2023 at 08:32PM

Show HN: A modern CGI web framework for C++ https://ift.tt/Ljq9NtB

Show HN: A modern CGI web framework for C++ Hi, I work on this library because I like the simplicity of CGI and enjoy building things with C++. It is based on asio and my own implementation of FastCGI, and it works on both Linux and Windows. I have just released the new version and created a simple live demo that you can check out here: https://ift.tt/a6ST4ok https://ift.tt/mjyvaVW July 13, 2023 at 02:02AM

Show HN: GroceryTrip – Turn receipts into nutritional information https://ift.tt/XQkvCtf

Show HN: GroceryTrip – Turn receipts into nutritional information Hey HN, I've been working on a Flutter app for the past few months that turns receipts into useful nutrition information. The aim of this project is to make it easier to understand the nutrition and ingredients in our groceries simply by scanning a receipt. How GroceryTrip works (more detail in github repo): 1. Take a photo of your receipt (remains local, there's a demo receipt in the app if you don't have one on-hand) 2. Crop photo to relevant barcodes/names of products 3. View receipt Summary/Details 4. Optional: Contribute missing barcodes It's a super simple app currently, but I think it has potential to provide more insights into the food we purchase every week (viewing grocery trends over time may be useful). Any feedback or suggestions are appreciated! https://ift.tt/3QG5Wye https://ift.tt/3QG5Wye July 13, 2023 at 04:47AM

Innovation to Icon: 150 Years of Cable Cars Exhibit Opens

Innovation to Icon: 150 Years of Cable Cars Exhibit Opens
By Jeremy Menzies

We are happy to announce the opening of a special history exhibit at the San Francisco Public Library, as part of the ongoing celebrations for the 150th anniversary of the cable cars. The “Innovation to Icon: 150 Years of Cable Cars” exhibit runs from July 1 to September 30 on the 6th floor of the public library’s main branch library at 100 Larkin Street.

150 years strong, San Francisco’s cable car system is a symbol of the city. 

"Innovation to Icon: 150 Years of Cable Cars" takes a visual journey through time that brings the incredible history of San Francisco’s beloved cable cars to life. Combining photographs, original documents, and unique memorabilia from the San Francisco History Center and the SFMTA Photo Archive, this exhibit showcases the spirit, ingenuity and timeless allure of a city icon.  

Cable cars once dominated the transit scene in San Francisco. This 1890s shot was taken at Market and Geary Streets in the center of the city. 

Invented in 1873 to conquer the city’s challenging topography, cable cars evolved from a groundbreaking transportation mode to a symbol of San Francisco. The cars have endured multiple boom-bust cycles, nearly becoming extinct more than once thanks to natural, political and economic turmoil. During the post-war era, they rose in popularity locally and nationally and became a “must-see” attraction for visitors. 

California Street cable car passing Grant Avenue in Chinatown in the late 1970s. 

Years of use and deferred maintenance in the 1970s left the system battered and unsafe. From 1982-1984, the entire system was shut down and rebuilt from the ground up. Reengineered for improved safety and structural integrity, the new system held onto its 19th century roots. 

Today, San Francisco’s cable cars are landmarks of American history and culture. Rather than being static relics from the past, they are living and moving museums, reminding us of what makes San Francisco such an extraordinary place. Drop by during regular library hours to immerse yourself in the world of the “little cable cars” that forever changed our city.

Published July 13, 2023 at 02:53AM
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