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Show HN: Boardzilla, a framework for making web-based board games

Show HN: Boardzilla, a framework for making web-based board games<p>Tldr: We’ve made a framework for web-based board games. You can try out some games over at <a href="https://boardzilla.io" rel="nofollow">https://boardzilla.io</a>, or you can take a look at <a href="https://docs.boardzilla.io" rel="nofollow">https://docs.boardzilla.io</a> to learn more about how to develop your own game. Source is available at <a href="https://github.com/boardzilla">https://github.com/boardzilla</a><p>Hey y’all. My brother and I have made a framework for board games. During the pandemic we started to look at BGA but got discouraged by how old-fashioned the tools were and how cumbersome the development process was. We set out to make our own framework where you could use the same code for both the client and server. Our hope is anyone familiar with Typescript and CSS could code up a game without worrying about state management, persistence or networking.<p>It’s still very much a wip, and we're rapidly adding features and games. But we’ve got our first draft of developer docs done, and we've put up a few games we've developed to showcase and test out the platform. Source for the games and framework is available on Github, and we’re excited to code more games and hopefully encourage other people to try it out. Happy for any feedback.

Show HN: Boardzilla, a framework for making web-based board games

Show HN: Boardzilla, a framework for making web-based board games<p>Tldr: We’ve made a framework for web-based board games. You can try out some games over at <a href="https://boardzilla.io" rel="nofollow">https://boardzilla.io</a>, or you can take a look at <a href="https://docs.boardzilla.io" rel="nofollow">https://docs.boardzilla.io</a> to learn more about how to develop your own game. Source is available at <a href="https://github.com/boardzilla">https://github.com/boardzilla</a><p>Hey y’all. My brother and I have made a framework for board games. During the pandemic we started to look at BGA but got discouraged by how old-fashioned the tools were and how cumbersome the development process was. We set out to make our own framework where you could use the same code for both the client and server. Our hope is anyone familiar with Typescript and CSS could code up a game without worrying about state management, persistence or networking.<p>It’s still very much a wip, and we're rapidly adding features and games. But we’ve got our first draft of developer docs done, and we've put up a few games we've developed to showcase and test out the platform. Source for the games and framework is available on Github, and we’re excited to code more games and hopefully encourage other people to try it out. Happy for any feedback.

Show HN: Pong Wars

Show HN: Pong Wars

Show HN: Pong Wars

Show HN: Anki/Duolingo-like app using educational YouTube videos

Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!

Show HN: Anki/Duolingo-like app using educational YouTube videos

Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!

Show HN: Anki/Duolingo-like app using educational YouTube videos

Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!

ZX Spectrum Raytracer

Inspired by a recent article in HN about raytracing on some ancient architecture, I realized that I've implemented many a raytracer in my life, but never one for my first love, the ZX Spectrum. So I fixed the glitch.<p>Trigger warning: the source code includes GO TO statements. Because that's how we did it in the 80s! Enter at your own peril.

Show HN: Open-source Rule-based PDF parser for RAG

The PDF parser is a rule based parser which uses text co-ordinates (boundary box), graphics and font data. The PDF parser works off text layer and also offers a OCR option to automatically use OCR if there are scanned pages in your PDFs. The OCR feature is based off a modified version of tika which uses tesseract underneath.<p>The PDF Parser offers the following features:<p>* Sections and subsections along with their levels. * Paragraphs - combines lines. * Links between sections and paragraphs. * Tables along with the section the tables are found in. * Lists and nested lists. * Join content spread across pages. * Removal of repeating headers and footers. * Watermark removal. * OCR with boundary boxes

Show HN: Open-source Rule-based PDF parser for RAG

The PDF parser is a rule based parser which uses text co-ordinates (boundary box), graphics and font data. The PDF parser works off text layer and also offers a OCR option to automatically use OCR if there are scanned pages in your PDFs. The OCR feature is based off a modified version of tika which uses tesseract underneath.<p>The PDF Parser offers the following features:<p>* Sections and subsections along with their levels. * Paragraphs - combines lines. * Links between sections and paragraphs. * Tables along with the section the tables are found in. * Lists and nested lists. * Join content spread across pages. * Removal of repeating headers and footers. * Watermark removal. * OCR with boundary boxes

Show HN: I wished for a site with a growing list of math problems, I built it

Good math problems are hidden inside textbooks and online documents. To keep up with all the sources in the world is hard. For someone who just wants to continuously solve problems, finding and going through all the sources feels like a hassle. I wished for a website that could just dump all the math problems available in the world out there. And if I could filter the problems by topics, that would be beautiful.<p>teachyourselfmath is a side project that was born out of this need. At its core, it is a math PDF extraction engine. The engine has some machine learning going on behind the scenes to extract math problems in LaTeX from any image or document.<p>A little bit about me: I am Vivek, a software engineer based out of India with a diverse set of interests including math. This project is close to my heart for many different reasons and nothing would make me happier than finding people on the internet who would find this website to be useful.<p>I’d love to hear your feedback on this. Thanks!

Show HN: I wished for a site with a growing list of math problems, I built it

Good math problems are hidden inside textbooks and online documents. To keep up with all the sources in the world is hard. For someone who just wants to continuously solve problems, finding and going through all the sources feels like a hassle. I wished for a website that could just dump all the math problems available in the world out there. And if I could filter the problems by topics, that would be beautiful.<p>teachyourselfmath is a side project that was born out of this need. At its core, it is a math PDF extraction engine. The engine has some machine learning going on behind the scenes to extract math problems in LaTeX from any image or document.<p>A little bit about me: I am Vivek, a software engineer based out of India with a diverse set of interests including math. This project is close to my heart for many different reasons and nothing would make me happier than finding people on the internet who would find this website to be useful.<p>I’d love to hear your feedback on this. Thanks!

Show HN: Startup funding simulator

Hi HN<p>We built a tool to help founders understand how modern fundraising (with safes) works, and how much dilution you can expect when raising money.<p>The project is open-source. The code is a mess right now, but it'll get better I promise. You can also help with that.<p>We didn't build this to make money. We genuinely did it because we were looking for it, and couldn't find it.<p>We're in fact in the process of fundraising for a company, and at first glance the process looks simple. Just an excel sheet will do! But then the more we dug into it and tried different simulators, the more we realized that it's more complex than it looks.<p>We even signed up to Pulley, Carta and others just to run simulations. But they're a bit confusing.<p>TL;DR: Understanding modern startup funding and knowing how much dilution you'll face is hard. We built a tool that'll hopefully help with that. You can add Post-money Safes, priced rounds and issue options to employees, and you can see how that affects your ownership at every step. You can also simulate an Exit scenario and see how much money you'll be left with.<p>---<p>Some examples of complex stuff:<p>- There are many different types of safes. They all convert at the first priced round, but in different ways. Some are through discount, some are uncapped, some have a fixed valuation cap, and some have both a discount and a valuation cap.<p>- All safes (before first priced round) convert at the same time. They don't dilute each other, which is what happens in the rest of fundraising.<p>- Investors often require you to set aside some options. This one is particularily nasty. Basically, if an investor expects you to set aside 10% as options, and expects to get 10% equity, that's what should appear in the subsequent cap table. However, calculating the options is difficult, and is often a circular calculation (even Kirsty Nathoo from YC says it's complex and avoids showing the calculation in the Safe video "Understanding SAFEs and Priced Equity Rounds")<p>- Safes and priced rounds can have pro-rata, but don't always exercise it<p>- Pro-ratas of safes are taken from the priced round money, so you'd expect the safe holder's equity to remain the same if they exercise it. BUT ... it gets diluted by the new options issued.<p>- Safes can have an MFN provision, which defers the valuation discussion/calculation until the moment the priced round is about to close. With a mix of discounts, uncapped and valuation caps, it gets tricky to know which deal is "better".<p>- ...<p>Assumptions and limitations:<p>- Only post-money safes and priced rounds.<p>- No down rounds. There's a bit more complexity around liquidation preferences and anti-dilution rights - we don't support that now. It only matters if you're simulating a "bad" situation. But come on, it's a simulator — Be optimistic.<p>- No pro-rata caps. We might add that soon, to fully support the YC standard deal. But for now, if an investor gets a pro-rata, they can exercise either all of it (keeping their original ownership) or none.<p>- Safes' pro-ratas disappear after the first priced round. (I think this is what happens normally?)<p>- Remaining available options get redistributed evenly at exit.<p>- The round is the investor. For the sake of simplicity, consider "Series A" as the combination of all series A investors into one, super-investor.<p>Let us know what you think!

Show HN: Startup funding simulator

Hi HN<p>We built a tool to help founders understand how modern fundraising (with safes) works, and how much dilution you can expect when raising money.<p>The project is open-source. The code is a mess right now, but it'll get better I promise. You can also help with that.<p>We didn't build this to make money. We genuinely did it because we were looking for it, and couldn't find it.<p>We're in fact in the process of fundraising for a company, and at first glance the process looks simple. Just an excel sheet will do! But then the more we dug into it and tried different simulators, the more we realized that it's more complex than it looks.<p>We even signed up to Pulley, Carta and others just to run simulations. But they're a bit confusing.<p>TL;DR: Understanding modern startup funding and knowing how much dilution you'll face is hard. We built a tool that'll hopefully help with that. You can add Post-money Safes, priced rounds and issue options to employees, and you can see how that affects your ownership at every step. You can also simulate an Exit scenario and see how much money you'll be left with.<p>---<p>Some examples of complex stuff:<p>- There are many different types of safes. They all convert at the first priced round, but in different ways. Some are through discount, some are uncapped, some have a fixed valuation cap, and some have both a discount and a valuation cap.<p>- All safes (before first priced round) convert at the same time. They don't dilute each other, which is what happens in the rest of fundraising.<p>- Investors often require you to set aside some options. This one is particularily nasty. Basically, if an investor expects you to set aside 10% as options, and expects to get 10% equity, that's what should appear in the subsequent cap table. However, calculating the options is difficult, and is often a circular calculation (even Kirsty Nathoo from YC says it's complex and avoids showing the calculation in the Safe video "Understanding SAFEs and Priced Equity Rounds")<p>- Safes and priced rounds can have pro-rata, but don't always exercise it<p>- Pro-ratas of safes are taken from the priced round money, so you'd expect the safe holder's equity to remain the same if they exercise it. BUT ... it gets diluted by the new options issued.<p>- Safes can have an MFN provision, which defers the valuation discussion/calculation until the moment the priced round is about to close. With a mix of discounts, uncapped and valuation caps, it gets tricky to know which deal is "better".<p>- ...<p>Assumptions and limitations:<p>- Only post-money safes and priced rounds.<p>- No down rounds. There's a bit more complexity around liquidation preferences and anti-dilution rights - we don't support that now. It only matters if you're simulating a "bad" situation. But come on, it's a simulator — Be optimistic.<p>- No pro-rata caps. We might add that soon, to fully support the YC standard deal. But for now, if an investor gets a pro-rata, they can exercise either all of it (keeping their original ownership) or none.<p>- Safes' pro-ratas disappear after the first priced round. (I think this is what happens normally?)<p>- Remaining available options get redistributed evenly at exit.<p>- The round is the investor. For the sake of simplicity, consider "Series A" as the combination of all series A investors into one, super-investor.<p>Let us know what you think!

Show HN: Retriever – Securely share secrets over the internet

Retriever (<a href="https://retriever.corgea.io/" rel="nofollow">https://retriever.corgea.io/</a>), an open-source research project to help users receive secrets and sensitive information without needing a server in the middle. It works by using Public-key cryptography to coordinate the message sharing between the two devices.<p>Read more on why we built it here: <a href="https://retriever.corgea.io/why.html" rel="nofollow">https://retriever.corgea.io/why.html</a>

Show HN: Retriever – Securely share secrets over the internet

Retriever (<a href="https://retriever.corgea.io/" rel="nofollow">https://retriever.corgea.io/</a>), an open-source research project to help users receive secrets and sensitive information without needing a server in the middle. It works by using Public-key cryptography to coordinate the message sharing between the two devices.<p>Read more on why we built it here: <a href="https://retriever.corgea.io/why.html" rel="nofollow">https://retriever.corgea.io/why.html</a>

Show HN: Built a self hosted clean status page and batteries

Status pages have been the way they have seen the mid 2010s. There are few new ones but they are paid. So I decided to build this using svelte + sveltekit. It has all the necessary features. Few are yet to be built. Do check it out

Show HN: Nutrient insights through your grocery receipts

Nutri is still in beta and the GPT-powered results are sometimes inaccurate. The nutrient information accuracy is good to get an overview, but there are still outliers at times. I'm looking to improve the accuracy through food databases. Furthermore, I'd like to add additional tips for combining / preparing food to improve its nutritional value. For example, iron absorption is improved through vitamin C, so combine chickpeas or leafy greens with lemon. Or combine beans with rice to get all amino acids.<p>On the UX side, I'd like to integrate a QR code on the desktop version to easily upload receipts through the phone. Furthermore, it would be great to have analytics over weeks on nutrient improvements over time. Nutri could also be a great accountability partner to track items high in sugar / processed foods.<p>What do you think?

Show HN: I made an app people call "Airdrop for Android"