Show HN: A tiny solar-powered server only awake during the day Solar Witch is a little webpage and server which receives and displays messages, so I suppose it’s a tiny message board. It’s coded in very dubious Arduino C. It’s not a 24/7 website. Depending on the state of the battery, the server itself might run all night, but all the messages it receives during the day are deleted at sunset, and the messaging function itself is only active between sunrise and sunset. This is for two reasons: 1. Less usage of Solar Witch during the night conserves battery power. 2. I like the idea of websites which _aren’t_ constantly available. Websites which have to sleep too. Websites living on servers which aren’t somewhere in the cloud, but which are bound to a particular location, giving you a sense of where in the world they actually live. Solar Witch is very much inspired by the solar-powered version of Low Tech Magazine ( https://ift.tt/uIsQy6V ), but at a far, far smaller scale. PSA: Solar Witch is a teensy hand-written C server running on a teensy microcontroller attached to a teensy solar panel which can only handle one HTTP request at a time and may have buffer overrun issues due to my ineptitude with C. If it’s gone down, please don’t be surprised, and rest assured I’ll hit the reset button soon! Solar Witch encourages patience. https://witch.solar April 3, 2022 at 12:10AM

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Show HN: pync – Netcat for Python https://ift.tt/Msx4woH April 1, 2022 at 12:26AM

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Show HN: Magma Studio – multiplayer drawing/art platform for game dev/animation Hey, I’m the co-founder of Magma and coded huge chunks of the product. My other co-founder Radek coded the collaborative drawing engine in Typescript with parts in Web Assembly and also using WebGL – that’s why it has a native app feel. If you have an iPad or a Wacom tablet we support pressure sensitivity (enable Windows Ink if you have issues). We prepared 10 drawings that you can join. Beware that there is a 30 users (drawing at once) limit on each. You can easily create your own drawing and share the url with others to join. https://magm.ai/k36k https://magm.ai/exp-1 https://magm.ai/exp-2 https://magm.ai/exp-3 https://magm.ai/exp-4 https://magm.ai/exp-5 https://magm.ai/exp-6 https://magm.ai/exp-7 https://magm.ai/exp-8 https://magm.ai/exp-9 How is it good for game dev?: – Brainstorming on art – Concept art – Storyboarding – Character development Some trivia: – There are 16 tools already like paint, select, bucket fill, including advanced tools like custom shapes – We have multiple brushes to choose from. More in the Pro version. We will let you upload your own in the future. – You can export to Photoshop and continue working there with some more advanced post-processing – You can draw with a mouse, touch or stylus (preferred) – iPad, Wacom and other tablet vendors – We are building a team space called “Artspaces” with project & team management. Currently teams can use an on-premise version of Magma (dockerized). More technical: – We are one of the first commercial projects to use Deepkit – a revolutionary high performance Typescript framework https://ift.tt/ZPW9esL – It works on Google Chrome, Firefox, Safari – but Google Chrome is preferred – We use all the cool web tech like Canvas with WebGL acceleration and a software fallback. Websockets for communication – 99% is built in Typescript – 1% is Webassembly and C for some optimizations. Node.JS on the backend. Happy to take questions 🙂 https://magmastudio.io/ March 31, 2022 at 11:30PM

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Show HN: Dstack – Train models and manage data effortlessly https://dstack.ai March 30, 2022 at 09:39PM

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