Buildsheet

What it does

Build beautiful cheatsheets with markdown support, syntax highlighting, and drag-and-drop layout. Export to Markdown. Offline, with auto-save feature. No signup required.

Enter bore, stroke, and chamber specs once — displacement, compression, power estimate, and induction sizing all update together. Mean piston speed (ft/min) = stroke × RPM ÷ 6. It's a real, widely-used ceiling check — not a prediction of your actual peak-power RPM, which also depends on heads/cam/intake tuning length we don't model. The suggested range assumes a mild-to-moderate street VE window (3800-4400 ft/min); race combos with the parts to back it up regularly run higher. The max-RPM check below is flagged against your piston type from section 04 — cast/hypereutectic parts tolerate less than forged. Rolls up block + heads + crank + rods + pistons + intake, entered across sections…from buildsheet.netlify.app

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  BuildsheetNov 2025 · buildsheet.one · ▲11

  Create beautiful cheatsheets and notes in one environment

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  GitSheet2019 · gitsheet.wtf · ▲319

  A dead simple Git cheat sheet.

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  Sheet Markup – add spreadsheets to a Markdown document2023 · equalto.com · ▲120

  GitHub: https://github.com/EqualTo-Software/stackedit-sheet-markup

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  HomeSheet – easy-to-use home inventory software2022 · homesheet.co · ▲156

  Hi HN! I've spent the last few months building HomeSheet - The all in one tool to track your personal assets. I built HomeSheet to make organizing and documenting my belongings a breeze. I've always wanted to put together a home inventory to protect myself in the event of a disaster, but I never found a solution that I liked. Right now HomeSheet is in early access, and I'm still working on determining what additional features users would like. I'll be around in the comments if you have any feedback, questions, or just want to say hi!

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  cheet2022 · cheet.dev · ▲106

  Create developer cheatsheets

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  Code House2021 · codehouse.vercel.app · ▲140

  A whole new world of 300+ developer cheat-sheets

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  /dev/null▲489

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

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  Cursor 2.0▲957

  Our first coding model and new interface for agents

  AI · Oct 2025 · cursor.com

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  Flask▲806

  Notion + Loom, for video collaboration.

  AI · 2025 · flask.do

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  Strange Attractors▲804

  I went down the rabbit hole on a side project and ended up building this: Strange Attractors(https://blog.shashanktomar.com/posts/strange-attractors). It’s built with three.js. Working on it reminded me of the little "maths for fun" exercises I used to do while learning programming in early days. Just trying things out, getting fascinated and geeky, and being surprised by the results. I spent way too much time on this, but it was extreme fun. My favorite part: someone pointed me to the Simone Attractor on Threads. It is a 2D attractor and I asked GPT to extrapolate it to…

  AI · Oct 2025 · blog.shashanktomar.com

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  Orchestra▲793

  A chat-centric workspace for builders and modern teams

  Work · 2025 · orch.so

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  Autism Simulator▲779

  Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum. I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism". I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those…

  Life & fun · 2025 · autism-simulator.vercel.app

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  Director▲768

  Lovable for web automation

  AI · 2025 · director.ai