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tgirotto

Show HN: Open Twin, a modelica-based simulator for real-world physical systems

https://open-twin.netlify.app/w/d5e756e1-4b43-415b-a10c-bb83fb98fe55

Hello, I am sharing a quick demo of a simulator that uses Modelica to simulate the behaviour of physical systems in the real world. It could be useful for PLC testing, since it would allow to test the PLC regulation logic against the simulation of a real system. It's very basic, but I'd love to know your opinions.

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Re:IKEA for Software on Thursday January 22, 2026 @05:13AM (#46717315)
@kabes author here. I've been wondering the same actually. My doubts about AI is that it just writes code, and does not really provide battle-tested blocks, which instead a top-down approach might provide.
Re:IKEA for Software on Thursday January 22, 2026 @05:08AM (#46717277)
true, but aren't these walled gardens? Meaning, could there be a more open, developer-friendly solution?
Re:IKEA for Software on Thursday January 22, 2026 @05:02AM (#46717230)
@yobbo author here. Totally agree on my contributions being negligible ;) That being said, doesn't that actually prove the point? If a good amount of business value is coming from gluing pieces together, why not start from the top?
Re:IKEA for Software on Thursday January 22, 2026 @04:59AM (#46717208)
@mixologist, author here. That was kinda my point... if I have to keep on gluing components, I might as well start from the top :)
Re:Why doesn't Google Maps show events? on Tuesday January 13, 2026 @04:28PM (#46608379)
I was wondering why Google Maps does not show events, and wrote an article about it :)
Re:Technical vs Business Decentralisation on Sunday January 11, 2026 @01:42PM (#46578406)
Just thought I'd share a few thoughts about decentralisation :) Would love to know your opinions!

Show HN: Starthub – Deploy horizontal n8n to Digital Ocean with one command

https://starthub.so

Hello, I’ve been experimenting with Starthub, an npm-like CLI tool that chains Docker and WASM units to perform arbitrary workflows. Deploying open-source stacks horizontally across multiple nodes is often tedious and error-prone, so this is an attempt to make that kind of task reproducible and composable. As an example, the command below deploys a horizontal n8n stack (postgres + redis +...

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Show HN: Starthub – Deploy horizontal n8n to Digital Ocean with one command

https://starthub.so/starthubhq/n8n-horizontal-do/0.0.1/readme

Hello, I’ve been experimenting with Starthub, an npm-like CLI tool that chains Docker and WASM units to perform arbitrary workflows. Deploying open-source stacks horizontally across multiple nodes is often tedious and error-prone, so this is an attempt to make that kind of task reproducible and composable.As an example, the command below deploys a horizontal n8n stack (postgres + redis +...

( Read More... | no comments | on HN )
Re:Show HN: AI to Find Local Events on Saturday March 23, 2024 @08:46AM (#39799544)
Well done! Where does this get data from? I remember thinking about something similar, but deciding not to go forward because of legal issues.
how does the api handle auth though?
Re:Device Frames – 3D Device Mockup Generator on Wednesday August 24, 2022 @05:37AM (#32577029)
Since I found this useful, I thought maybe someone else also would in here.

Ask HN: Help me come up with a list of books for education in Tanzania

Hello, I am a developer based in Tanzania. Besides poverty, this country is also crippled by lack of education, which is generally not looked at as something valuable.One of my neighbors in Dar Es Salaam is a 17-year-old student that has just started university. Let's call him John. While he was excited at starting his courses about a month ago, he is having to quit because his family does not...

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looks great. Did you use any frontend framework?