whattocook
Octo
whattocook | Octo | |
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2 | 8 | |
3 | 654 | |
- | - | |
7.7 | 5.9 | |
6 months ago | 7 months ago | |
Java | JavaScript | |
GNU Affero General Public License v3.0 | MIT License |
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whattocook
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Ask HN: What's the stack for your "home-cooked meal" apps?
I literally made one to scratch my itch with home cooked meals: https://www.kassner.com.br/en/2023/09/21/what-to-cook-launch...
Honestly, I don’t have “a stack”, if I’m trying to learn a new thing I’ll use that to build a new project, or if I don’t I’ll default to the most suitable option.
i.e.: What to Cook? was built in Java because I needed a refresher, otherwise I’d likely use PHP/Symfony because I could finish it quickly. If the project is non-web/fullstack, I’d default to Go. If im building something that will use React, I’d default to NodeJS+Express.
If you’re curious, i have a few write ups in the projects section of my blog
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Ask HN: Show me your half baked project
I have a few:
https://www.ytemail.com/ - e-mail notifications for YouTube uploads. I was in the 0.01% that used and liked e-mails, and built this after Google killed the e-mails. If you want to use, please get in touch, I'm happy to onboard free users if the amount of notifications you'll get isn't big.
https://github.com/kassner/whattocook - Recipe chooser, but it works the other way around you'd expect. In a household of depressed people, it's common that we can't get to agree on the meal, so this project decides it for us. You can exclude ingredients in case you don't have them at home, but that's the only way you'll get a different recipe.
https://www.kassner.com.br/projects/money/ - Personal finances project that only I use. Never had the courage to open it to the world, and there isn't anything innovative in it to be worth the hassle either. Only pluses are single-binary web project and DBs are password-encrypted by default.
Octo
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Ask HN: Show me your half baked project
1. Octo, a CHIP-8 assembler: https://github.com/JohnEarnest/Octo
P.S. Octojam 10 runs until 12:00 AM PST on November 1st! See the following if you're interested! https://itch.io/jam/octojam-10
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Is there a pointer equivalent of declaring an array?
In addition to what other posters suggested, it could be a good idea to try assembly languages as a way to manually work with locations in memory. Something like Octo could be fun if you want to try memory manipulation without worrying about real-world complexities like syscalls and memory alignment. If you want something extra challenging, you could always try x86 / amd64 assembly. Some C compilers even support inline assembly if you want to mix C and assembly.
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How do I make a "game" for Chip8?
Yes, Octo is the most used tool to create CHIP-8 programs today. John has a little introduction text for writing in its dialect here: https://github.com/JohnEarnest/Octo/blob/gh-pages/docs/BeginnersGuide.md
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Feedback on my very own C++ CHIP8 Interpreter/Emulator
I also want to thank you all for all the advice you gave to me and others about CHIP8. It was very helpful to read some posts here ! I also used John Earnest's OCTO a lot for debugging.
- Octo
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Is chip 8 emulator flicker normal?
The octo FAQ touches on this "pre-xoring" technique, and theres a worked example of doing this data preparation in macros. I've also written varioustools that can handle the xoring for you.
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Executable PNGs
In my own system, Octo[0], I encode programs and their metadata in a similar steganographic fashion in GIF files. As others have noted here, both GIF and PNG offer extension mechanisms and ways to embed "comments", but popular image-sharing sites universally re-encode images and discard this data. The advantage of GIF over PNG (for my purposes) is that I store an arbitrary payload in a fixed-looking image by creating additional frames of animation.
In the past, I've also used a different technique- if you simply concatenate a PNG onto a JAR (which is really just a ZIP archive) you end up with a file that acts like a PNG unless you change the extension to JAR, in which case it acts like a Java executable. This works because the PNG header is at the beginning of the file, while the ZIP header is at the end. Nowadays, though, desktop Java is pretty much dead, so it's a less exciting party trick.
[0] https://github.com/JohnEarnest/Octo
What are some alternatives?
YTBN-Graphing-Software - (Yet-to-be-named) Graphing Software
vis-chip-8 - Visual Chip-8 Emulator
esther - Dear Esther, you're about to become an idea for a diary app that embeds an LLM.
chip8-test-rom - ROM for testing chip8 emulator
luvdb - Your self-hosted inner space
chip8-test-suite - A collection of ROM images with tests that will aid you in developing your own CHIP-8, SUPER-CHIP or XO-CHIP interpreter (or "emulator")
trystero - 🤝 Build instant multiplayer webapps, no server required — Magic WebRTC matchmaking over BitTorrent, Nostr, MQTT, IPFS, and Firebase
wasm4 - Build retro games using WebAssembly for a fantasy console.
resume - Resume for the Green Lamp project a.k.a Bablishko Na Aitishkux
pixload - Image Payload Creating/Injecting tools
postwave - An opinionated flat-file based blog engine.
chip8Archive - A repository of community-submitted Chip8 programs and their metadata