HASH
Build complex simulations quickly with modular components
HASH launched on July 16, 2020 with 127 votes, #274 of 4,305 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 6 years on.
What it does
HASH is a marketplace of modular building blocks and in-browser IDE for simulating complex systems.
Integrate live data, construct ontologies, and create shared understanding in a collaborative, open-source workspace
Does a similar job
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Docs by Hashnode2024 · hashnode.com · ▲700The gold standard for your API references and product guides


A hash array-mapped trie implementation in C2023 · github.com · ▲171Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
- AS
Discohash – Fast Hash2020 · github.com · ▲75:rocket: DISCoHAsH - Simple, fast, quality hash in 120 lines. 10GB/s serial (depending on hardware). Also in NodeJS - DO-SAY-GO/DISCoHAsH
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Source: Product Hunt launch ↗
Launched alongside, July 2020
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Using only a Raspberry Pi and an $11 video capture dongle, you can create your own KVM over IP device, allowing you to send keyboard input to a remote computer and capture its display.
Life & fun · 2020 · mtlynch.io

Generate an animated 3D image from a book cover and export to HTML/CSS to embed on your website.
Life & fun · 2020 · 3d-book-css.netlify.app

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Life & fun · 2020 · primo.af
