Show HN: The World Is on Fire https://ift.tt/mbqtvlA

Show HN: The World Is on Fire https://ift.tt/JDHIrEK September 28, 2022 at 03:28PM

Show HN: A formally verified native Delta Lake implementation in Rust https://ift.tt/oMviR1t

Show HN: A formally verified native Delta Lake implementation in Rust https://ift.tt/FuE8QdB September 28, 2022 at 11:33AM

Show HN: KaithemAutomation, the home automation system for coders and artists https://ift.tt/H9afdFQ

Show HN: KaithemAutomation, the home automation system for coders and artists I've talked about this one on Reddit a bit, and I think it's finally about ready to talk about here. I started this project around 2013 for internal use, and GPL licensed it because I have no desire to own my own software business. Kaithem is, for the most part, somewhere between a SCADA and a Home Assistant clone, heavily focused on easy deployment with minimal tinkering. It allows for Python code based if-then events you edit via the web, along with web-editable HTML dashboards, but also includes loadable modules for more point-and-click style editing. One of these is Chandler, a scenes/cues manager that includes a simple visual scripting language inspired by ladder logic. It saves everything you create in Git-friendly plain text files, and is meant to integrate well with a linux system, with convenience features like using the user account username/password to log in. Device drivers created via an extension API, and can also be used in non-kaithem apps, via the iot_devices library. Drivers should be share-able and installable via pip. There's also basic builtin support for IP cameras, including sub-second latency streaming via websockets, and object detect recording. Out-of-the-box device support is pretty limited at the moment, consisting entirely of stuff I've had a use case for personally, but does include YeeLight, RTL433-supported sensors, SainSmart relay boards, and most anything ZigBee2MQTT can handle. In addition, there are tag points and alarms vaguely copied from SCADA systems, modules can make use of the tagpoint object, which is like a variable that hooks into the tag point system, every point gets a management page where you can set alarms, set up logging, which includes the ability to only log the min, max, or average over time, to save space, and override it's value. It uses only external dependencies found in the Debian repos, and does not include any crazy built in custom feature downloader thingy like some similar projects, nor anything that needs compilation. It does not use a database, separate web server, or any other thing that would require you to specifically configure the system in an unusual way, although some features can make use of MQTT, and it does depend on PipeWire being set up if you want to use the built in audio live mixer(You may also be able to use it with manually started JACK). It's 99% stable, used in real installs, and could probably be called v1.0 already, but there are unmaintained experimental features that will probably disappear(Anything that involves a custom nonstandard network protocol is on the chopping block, as per my philosophy of decustomizing technology, as is HTTPS support as that may be better done externally). https://ift.tt/cnAYJT2 September 28, 2022 at 10:41AM

Show HN: Refurb – A tool for refurbishing and modernizing Python codebases https://ift.tt/2TeupDf

Show HN: Refurb – A tool for refurbishing and modernizing Python codebases https://ift.tt/NvzcJ41 September 28, 2022 at 08:57AM

Show HN: debounce, throttle and requestAnimationFrame https://ift.tt/9VLlDkN

Show HN: debounce, throttle and requestAnimationFrame https://ift.tt/hfA7DlJ September 28, 2022 at 04:21AM

Show HN: A curation of resources telling the story of Bitcoin https://ift.tt/Y3giVoc

Show HN: A curation of resources telling the story of Bitcoin Spend the past couple of months creating a large curation of resources from the best Bitcoin educators. The goal was to create a wholesome journey that went beyond just talking about what Bitcoin is and how it works, but also helps newcomers understand why Bitcoin exists and why it can be such an impactful technology for people all over the world. I hope it can help people get a broader understanding of Bitcoin and allow them to make an informed judgement on its value to the world. p.s. I would love to make this community-driven and the GitBook is open-source. Do contribute if you would like to! It would be much appreciated. https://ift.tt/u3Hi9va September 27, 2022 at 11:29PM

Show HN: MockMechanics is now open source https://ift.tt/BLJd8rK

Show HN: MockMechanics is now open source Hey guys, a couple of years ago I posted about MockMechanics, a visual programming language/sandbox building game that I've been working on and there was a very positive response [0]. Since then I've been implementing most of the things I promised in my first youtube video [1] and making it ready for an open source release and I'm happy to say it's ready [2]. I've also been building new things and showing them in the youtube channel. It's written in clojure and you can use it to create all sorts of machines, games, musical instruments, etc using little to no code at all. You've seen the piano, the tetris game, the clock the combination safe and so on but since then I've built a 3d printer, a robotic hand, a bubble sorting algorithm, a 7 segment display, a ball cannon, a paint program and more, you can see all these things in the youtube channel [3]. [0] https://ift.tt/2AsWcnV [1] https://www.youtube.com/watch?v=HrwxbQj5mj0 [2] https://ift.tt/m4pC39x [3] https://www.youtube.com/c/MockMechanics Channel trailer with some of the new machines - https://www.youtube.com/watch?v=VQiA42ReNYE https://ift.tt/m4pC39x September 27, 2022 at 09:03PM