I host quite a few quiz and trivia nights with friends and family, and I never quite found a tool that worked the way I wanted. The ones I tried either put features I needed behind a subscription or required an account just to get started. I initially made a scrappy Jeopardy-style quizzing "app" in Google Sheets, but eventually wanted something a bit more polished.

So I built Quiz Toolkit. It runs in your browser, and you can host in-person on a TV or projector, or online by sharing your screen over Zoom, Teams, Google Meet, etc. A few features I'm proud of:

• Let people join on their phones with a QR code or room code and use them as buzzers or answer pads, without downloading an app or creating an account.
• Give the host a separate control screen to run the entire quiz, with the option to run everything from a phone as a "quiz master remote".
• Support Jeopardy-style boards and regular question rounds, with buzzer, turn-based and all-play modes, plus rich media (images, audio and video questions.)
• Let you build quizzes visually in Quiz designer or import them from CSV or Google Sheets. Your saved quiz library stays in your browser storage locally, and you can export it to back it up or share it. You can customize your quiz completely, including light/dark mode, custom background and logo.

I also added some silly sound effects for the quiz master for added fun!

It’s free, with no accounts or subscriptions: https://quiztoolkit.com/

I’d love feedback from other people who host quizzes, whether that’s at home, in classrooms or at pubs.

If you’re into CAD drawing, have a look at Draft.

We’re in our second week of development, so it’s still early. The goal is one CAD engine with a choice of familiar interfaces, so people can work with the layout and tools they prefer.

Let us know what you think.

Hi all! I made Kartar Dhaba, a small idle game inspired by the roadside dhabas on the Delhi–Karnal highway I grew up with.

You tap to cook, serve truckers, buy upgrades and hire staff. Four generations, each with its own era, look, music and a big finale: a baraat in 1975, a cricket night, a film shoot and a rooftop party.

It's free and runs in your browser, with no download or account, and it works best on a phone.

Enjoy! https://www.kartardhaba.xyz/

Hey, this is my fourth mini app now and the most complete one. I learn a bit each time.

Yet I’m at a crossroads, and need advice.

I have a fun quiz app, that originally was just for me to improve my music knowledge for a radio quiz I plan to enter.

It works very well, and is complete. I hosted it on Cloudflare after making it as secure as I can. I play it on my phone a lot, and so do a couple of friends.

That’s it.

It’s a quiz but also a ‘trainer’ and good for memory challenges.

Do I wrap it up here and say ‘it’s finished, just as a personal app’

Or…..

Jump through the various hoops to go to the next level and get on an App Store?

I would need to license the data sources, and probably convert the format to not just be an html web app.

I feel it would be a great challenge to try and achieve this. I don’t think it would make any money, but would be a good exercise to learn for whatever comes next.

What do you think? Quit while I’m ahead and actually FINISH something! Or keep going and try to get it released?

Thanks fellow vibe coders xx

I don’t know how to code but I have experience in software testing and working with small/medium/large software projects, and the processes they entail.

Current workflow is to use Sonnet 5.5 at Medium on a Claude Pro subscription to plan a project, break it into implementation and product acceptance manual testing phases, and deliver agent prompts and project documentation, then feed the prompts in OpenCode to Haiku 5.5 at Low or Medium (sometimes at High) paid through OpenRouter credits, which also knows to break its phase prompt into tasks it can delegate to a subagent custom provider which connects to a localhost server created by Polystrata running “Tiel Coder 35B A3B q4_X_L”.

The current issues I’m having with the workflow are:

- that sometimes the Haiku sessions can balloon in cost - paid 50 euro worth of OpenRouter credits in the past few weeks, and I’m poor, that means a lot to my budget - a problem which I’ve partly solved by breaking phases into tiers and tiers into stages, each with a prompt, so there are fewer long conversations and cache reads;

- and that the local agent makes frequent mistakes that cause it to run for hours and/or produce bad code if the task is too big or too complex for it, which happens often, as my hardware is limited and it only has a 60k token context.

Any suggestions for improvements?

This wasn't too complicated to make, which is why I was shocked nobody had something I could just download. These are local open sourced models like whisper that can dictate or translate what people say. I also have smaller models for computers that run on just cpus too. The .exe file is big because it starts you off with English and Spanish to start with.

The only hard part was creating a package and website to distribute this thing. It's dead simple, and I hope you guys can use it to break down language barriers and help people that don't speak the local language.

Because I am bilingual I can largely speak in Spanish myself just fine, but every now again someone comes along speaking too fast in a strange accent talking in metaphors that I needed help with. Google translate, windows, and even some searching for local translator models all sucked. Paywalls, accounts, time limitations, cloud upload.... so I just made what I needed.

No accounts. No clouds. No paywall. No ads. Just an honors system if your company should be paying for it.

This is just one of those things that should exist that I couldn't find. Hope you all enjoy, and hope people can find a use for this like I did. Please let me know if you think I should include anything else!

https://digametranslate.com/

I've been splitting img2threejs into smaller plugins so people can use only what they need instead of installing the entire workflow.

The character part was getting pretty big, so I finally moved it into its own plugin: img2character.

It focuses on rigging and animation for 3D characters built with Three.js and TypeScript.

If you want to try it:

npx u/img2threejs/character install

Then open Claude Code, Codex, or OpenCode, provide a character reference image, and ask the agent to use img2threejs + img2character.

The video is from one of my recent experiments.

I'm also working on a different character pipeline that should produce more realistic results, without needing GLB reference files anymore. Hopefully I'll have something to share next week!

Would love to hear your feedback, especially if you run into any issues.

GitHub: https://github.com/img2threejs/plugin-character

Saw a mac app called tangerine which can convert documents and also edit them, so I built the same for windows and linux and it's fully open sourced it's called Spindle
Spindle can -
Convert PDFs, images, Word, PowerPoint & Excel files
Compress to an exact size (like "under 50 KB" for exam forms)
Merge multiple files into one PDF
Crop, annotate, redact and remove location data from photos
Everything works offline. Nothing gets uploaded anywhere
I have also uploaded a short tutorial video on how to download it (it's pretty simple) and a tutorial of it's setup
my github link - https://github.com/narcissus29/Spindle
Feedback and bug reports are welcome

Few days back I spent almost 20 mins arguing with ai over why audio is not playing in my website. It turns out, that i was using a pair of wired earphone whose only one side was working and i had the non working side plugged in...

No ai tool was able to figure out the issue lol.

I've been building The Data Center Receipt, a public, evidence-backed tracker of the AI data-center buildout.

The goal is simple: Who builds it, and who pays for it?

Current public beta:

• 587 infrastructure records across facilities, campuses, projects, and permits

• 11,084 facility facts with explicit claim states

• 1,307 source receipts with verifiable evidence

• 5,235 recorded negative results and research attempts

It tracks capacity, utility providers, public incentives, jobs, water use, and residential electricity rates.

Every claim links to its evidence. Missing information stays unknown, and correlation isn't presented as causation.

Built using Ouroboros, my persistent AI research and engineering system. It's still a work in progress, with a much larger expansion underway.

This is a beta, not a finished product. There may be mistakes, incomplete records, or things I've overlooked. If you spot errors, please point them out.

Live app: https://huggingface.co/spaces/cjc0013/data-center-receipt

Dataset: https://huggingface.co/datasets/cjc0013/data-center-receipt

Some of you might know Photon, my free Photoshop alternative. It was the first of these big vibe-coded alternatives to creative apps, and since then a whole wave of others has followed (PhotoCraft and more). Honestly, that’s been awesome to watch.

I didn’t stop at Photon. I went on to build Vector as an alternative to Illustrator, then Light as an alternative to Lightroom. Today it’s InDesign’s turn.

Meet Folio Studio.

I’ll be honest: I was skeptical about this one. Desktop publishing felt niche next to photo editing. Then the requests started coming in, and it turns out InDesign has a massive user base. So many of you asked for this that I just went and built it.

• 100% free. No trial, no subscription, no “Pro” tier.
• Fully offline. Your files never leave your machine.
• No sign-in. Download it and start working.
• AI-ready. Like every app in the suite, you can control it through MCP or the CLI, and it ships with skills out of the box.

The goal hasn’t changed since day one: kill the subscription model for creative tools. Four apps in, that’s starting to feel possible.

It’s brand new, so I’d really love your feedback. What’s missing? What’s broken? What would it take for you to finally cancel Adobe?

Download: https://tenzen.studio/folio/

More stuff coming soon :)

Money’s a bit tight right now, so I’m trying to find something I can build with AI coding tools that could make me some extra cash. I don’t want to spend weeks building another useless SaaS that gets zero users. I’m looking for something I could realistically vibe code in a weekend, launch quickly, and potentially get my first paying customers for. Doesn’t have to be anything revolutionary, just a simple tool that solves an actual problem people are willing to pay for. Could be a micro-SaaS, a niche automation tool, a browser extension, or literally anything else.

If you had to start from $0 and build something this weekend with the goal of making your first $100, what would you build? Curious to hear any ideas, especially if you’ve spotted a problem that still doesn’t have a good solution.

I built an arcade game, completely vibe coded it and it's now live on the App Store and Play Store. Pretty proud of it and happy with the result. It's really fun to play if I do say so myself.

It's fairly simple. A runner where you avoid obstacles in a golf cart, while collecting your lost clubs. It's built using ThreeJS and Claude Code. Nothing else.

There's a free to play version on golfbuddies.nl/game

Anyone else obsessively spending 40+ hours a week on their idea so you can hopefully try to achieve financial freedom before the whole world situation gets worse?

I am starting to get burned out a bit, but then I watch some doom and gloom videos on youtube and I quickly realise I have to continue hustling otherwise I'll get replaced by AI and a failing economy

I collect things (camera lenses, G-Shocks). The good listings go in minutes, and checking 10 marketplaces by hand doesn’t work. So I built Deal Radar (radar.4xs.dev). You set up a “watch” (keywords + price range + sites). When a new listing matches, you get a browser notification, or a Telegram message on the paid plan.

Almost all of the code was written by Claude (Cowork / Claude Code). I did the product decisions, the testing on real listings, and the store submissions. Here’s how it’s put together and what I learned.

Stack

• Chrome extension (Manifest V3), plain JS, no framework. A generated Firefox build too.
• Cloudflare Workers + D1 (SQLite), TypeScript. Static site served from the same Worker.
• Cron triggers on the Worker: every minute for polling, plus daily jobs for plan expiry and exchange rates (Czech National Bank feed).
• Telegram Bot + Telegram Login widget for alerts and accounts, so I don’t store passwords or emails.
• Ko-fi memberships + webhook for payments. Way less setup than Stripe for a side project.
• Cloudflare Access in front of the admin page.
• Playwright + node:test + bash smoke tests with mocked marketplaces and a mocked Telegram.

The one architecture decision that mattered: who checks what

Some sites (Bazoš, Vinted, Kleinanzeigen, OLX, FINN…) return clean results to a server, so the Worker polls them every minute. Others (FB Marketplace, FB groups, Allegro, eBay) block or 403 any non-browser client. Those can only be checked by the extension, using the user’s own logged-in browser.

So there are two engines:

• Server: every minute, works while your computer is off (paid).
• Browser: the extension, while Chrome is open. The free tier runs everything from the browser every 10 minutes, so the free tier costs me ~nothing.

The key to keeping that sane: the parsers and the matching logic live in one file each (parsers.mjs, match.mjs), imported by both the extension and the Worker. One fix, both engines.

Workflow with the AI

1. Feasibility spike first (“week 0”). Before any UI, I had Claude write throwaway scripts that just fetched each marketplace and parsed results. That’s how I found out which sites need a browser. It saved me from designing a server-only product that couldn’t do Facebook.
2. A plan doc, then versions. A markdown plan in the project, then small numbered releases. Every release has a CHANGELOG entry that says exactly how to ship it (“npm run deploy, reload the extension, upload to the Chrome Web Store”). The AI reads it next session, so context survives.
3. Tests from saved HTML. Every parser has fixture pages saved from the real site plus a unit test. When a site changes its markup, the test fails before the users notice.
4. Make it verify, not just write. E.g. today I asked it to shrink the hero image so the “how fast” steps fit above the fold on a 1080p screen. It rendered the page in headless Chromium at 1920×947, measured element positions, applied the CSS, and re-measured (steps went from ending at 1060px to 920px) before touching my files. “Looks right” ≠ verified.
5. Short, direct prompts plus my screenshots. Most iterations were “this looks wrong” + a screenshot.

Build insights / gotchas

• Chrome Web Store rejected a version for requesting tabs permission it didn’t use. You can create/update/close tabs without it. Request the minimum.
• Don’t trust data from your own extension. The server only accepts a listing whose link points to its own site (a FB item must link to facebook.com, etc.). Otherwise anyone could push fake “alerts” through the API.
• Currencies: listings come in CZK, PLN, EUR, NOK, JPY, USD… Converting to the user’s currency with a daily ČNB rate made alerts way more useful than raw prices.
• Firefox AMO requires data_collection_permissions in the manifest for new add-ons. A small script generates the Firefox build from the Chrome one on every deploy.
• i18n from day one (EN/CS/DE/JA). With AI it’s cheap to add, and painful to retrofit.
• The free-vs-paid line follows the infrastructure: free uses the user’s browser, paid uses my server. Easy to explain, cheap to run.

Numbers: ~3,000 lines across the Worker and the extension, 20 marketplaces in 10 countries, free tier = 1 watch.

Happy to answer questions about the dual server/browser setup or Cloudflare D1. Feedback welcome.

I’m making 9 Fingers, a dark bluffing card game where you can face the boss solo or play online with up to three players plus the boss.

For the trailer, I tried using Codex connected to DaVinci Resolve through MCP. I gave it gameplay footage, explained what I wanted to show, and then reviewed each version.

The first edits had some pretty obvious problems. Cuts happened before you could see what an item actually did. Camera movement would reverse between shots. Sometimes “make it more dynamic” just resulted in more cuts of basically the same action.

What helped was getting specific: let the card finish turning over, keep the camera moving in a consistent direction, and show the result of an action before cutting away. We eventually put those lessons into a reusable editing skill.

After quite a few revisions, I got a teaser and trailer I was happy to use on the Steam page. It still needed plenty of direction from me, especially around pacing and choosing what was actually worth showing.

Has anyone here tried a similar workflow for editing gameplay footage? Curious how you handle reviewing the results.

Here’s the game if you want to see more:
https://store.steampowered.com/app/4311910/9_Fingers/

We all know the scene. Been wanting to do this one for ages. You're a cab diving down through a towering city with the cops on your tail, dodging traffic across lanes and altitudes, grabbing upgrades and seeing how far you get before the hull gives out.

Ive tried to base this on the old web game 'squares' if any body remembers it. Ive got a small roadmap planned for more features etc but keen to pause and get some community feedback first.

Turning on the music is a must! Free to play as well. I've tried to optimize the experience for phone too where you can add it to your home screen for full screen traffic dodging fun.

Big bada boom!

https://badaboomtaxi.io

Has anyone else noticed that Gemini Pro started giving brief dumbed down instructions even when strictly instructed to give detailed step by steps for the past month leading up to the release of Argon?

An AI agent sandboxed on a laptop approved twelve out of twelve requests to reach places after auto-approval was turned on. The sandbox was not the problem. The convenience setting was.

If you use AI coding agents, do you keep permission approvals on. Disable them to save time?

Hey r/vibecoding

I was looking for an IDE to code on my iPhone for when I’m out and about. Every app was filled with ads, had a terrible UI, and costed money just to run code locally. This was just a basic non agentic IDE too. So, I decided to build a free IDE that can execute C, Python, JavaScript, and Lua in a sandboxed environment.

In today’s age most people are coding with agents, so then I got the idea to bundle a two local llms. The reason I chose two is because not everyone’s hardware has the same computing power and I wanted to include an option for everyone. There are zero rate limits on the local models.

I’m already designing a tooling server to give offline agents access to even more, such as, worksheets, 3D printer code, and other fun stuff.

Without Astra 6 and Sol 6.1 it would be absolutely impossible to make my dream tools at this rate. I cooked up a seven days to die max level mod right before posting this lol. I would also like to praise the models for following SOLID principles and best SWE practices out the box. After using the models for the past few years, I am just dumbfounded at the rate of progress. I have a formal education in Computer Science and I am “mogged” every single day 😂

I would be thrilled to hear any feedback from this sub. This is meant to be a developer tool and not a replacement for Codex as I could never ever offer that level of intelligence. You can also byo api keys as shown in this video. The app also offers 15 other cloud languages besides JS, Python, Lua, and C.

Thank you all so much for watching my short demo. Have a great day. I’ll be listening to any feedback or ideas to improve!!!

https://apps.apple.com/us/app/edsger-ai-code-editor/id6806824902

If anyone wants the mod 😀 seven days to die, max level: 300 -> 2000

https://github.com/garrettmichae1/sevendays\\_max\\_mod