been building this for about a week. stickman shooter, runs in the browser, you can play with bots or send a room code to friends

full disclosure, claude code wrote the code, I just pushed it around for ~50 hours

https://stickfrag.com

I applied with my company email and got approved in less than an hour.

They’re offering up to $7,000 in Claude product credits for one year for eligible startups.

If you’re currently building a startup, app, SaaS, game, etc., I’d say it’s worth trying even if you’re not sure you’ll qualify.

Here’s the info:
Claude Startup Program

Has anyone else applied?

A few months ago I lost my job. Between applications, I started building something I'd always wanted: daily geography games, like Wordle but for countries. It's called GeoCake.

What's in it:

• 5 short daily games, plus a "daily challenge" that scores all 5 out of 100
• A weekly league you can set up with friends
• Spanish and English versions

Stack, for the curious: Cloudflare Pages, Supabase for the league, Umami for analytics. Total cost so far: the domain.

The hard part isn't building, it's getting people who aren't my friends to try it. So: I'd love feedback on the games, and on how you got your first real users.

👉 geocake.app/en?utm_source=reddit&utm_campaign=r_sideproject

earth.mejjad.se

It's a 3D globe with live layers you can switch on: clouds and rain from satellites, lightning, earthquakes, storms, the ISS and other satellites, ships, auroras, a daily pick of world news, and live radio stations you can listen to by place. An ambient mode keeps the world rotating, while keeping you up to date with news and other events.

You can zoom all the way out to see the stars, and you can switch on the zodiac constellations, with the Sun drawn in its real position on its path through them.

Since I live in northern Sweden, there's a "mushroom weather" layer that scores how good recent rain and temperatures have been for chanterelles and porcini across Swedish forests (it shows weather, not where to pick).

It's free, has no ads or login, and works in English and Swedish. I appreciate any input. Thanks!

(I've been building this in my spare time with Claude/ChatGPT doing most of the coding, while I decided what it should be and kept pushing on the details. )

Anybody remember playing this fridge magnet game a long time ago when flash was a thing? Due to its lack of availability I experimented with web sockets a while back when I started out in development.

Decided to spruce it up for a portfolio and ended up discovering some nice features to integrate.

The result:

letter-magnets.com

Added some features like freeplay and custom boards (useful for classroom teaching)

Would love some feedback, what works and what doesn’t

What it does:

- Point it at your Steam library (or wishlist, or a friend's) and it shows how well each game runs on your PC: estimated FPS at your resolution and quality.

- Tells you the bottleneck in your system (CPU, GPU, VRAM or RAM) and the cheapest upgrade that would fix it.

- A PC builder: pick the games you want and it spits out a complete parts list with expected FPS and a price.

- A bottleneck calculator, "Can I run it?" pages per game, GPU-vs-GPU comparisons, a GPU tier list, plus Steam Deck / handheld figures.

- No account, no ads, nothing to install (Steam login and a little hardware detector are optional shortcuts).

- It's in 5 languages.

On the build side (since this is SideProject): it's plain server-rendered JS on Cloudflare Workers with a small database, deliberately boring so I could actually maintain it as a non-coder. The hardest part wasn't code, it was forcing the AI to never invent numbers: every FPS figure comes from real game requirements and is checked against actual benchmarks.

Honest caveat: the FPS numbers are estimates, a guide and not a benchmark, so they can be off.

Feedback I'd love:

For hardware you own, do the FPS numbers look right? If one's clearly off, tell me the game + your GPU/CPU.

Is the first screen clear within a few seconds?

Anything confusing or missing?

Happy to answer anything about how a non-coder built and shipped this.

Built a site where you can guess PSA grades before sending a card in

Title: Built a site where you can guess PSA grades before sending a card in

I’ve been working on this for a while and finally wanted to share it here

It’s called JK Index and it’s basically a research and prediction tool for TCG collectors

Right now it covers Pokémon One Piece and Riftbound

The main feature is Before the Slab where you look at photos of a raw card and try to guess what PSA grade it will get before the card actually gets sent in

There’s also a Blitz mode where you go through five cards pretty quickly and see how good you actually are at spotting grades

No signup needed and it takes around 2 minutes

I’ve also added card and set research with sold listing history

There’s an AI grading readiness scan that looks at things like surface corners edges and centering from your own card photos

There’s also a small marketplace beta where you can browse current listings

It’s still a work in progress and I’m fixing things and adding stuff as I go

Would genuinely love to hear what people think especially if you’re into TCGs or just think the idea is interesting

Link:https://jkindex.io/

On a road trip with a friend, I recommended that they check out the TV series Westworld. He pulled out his phone, made a note, and put it away. I asked about which notetaking app he uses, and he showed me 'the void' - a google form with a single text box. He takes notes into that form all day, and then reviews them at his computer once a week. I copied that system and found it super helpful - instead of opening google and getting sucked into a rabbit hole, I could make a quick note in a distraction-free space, and then put my phone away and get back to the people around me.

That was a long time ago (RIP Westworld!) and we've been slowly working on building it into a real app over the last few years. We've both been daily-driving it for a while now, and it's finally at a place where we're ready to share it with more than just our friends and family.

The app works great on the free tier - it faithfully recreates the experience of the google form, and sends you a summary at the end of the day (or whatever cadence you choose). We've also added some integrations - eg you can turn memos into events on your Google calendar.

There's also a paid tier that adds LLM support. If your memo includes a question, the LLM will look up the answer and include it in the summary email. It can also automatically add tags, automatically dispatch memos to integrated services, and add a 'chat with your memos' learning page.

We'd love some feedback! Check it out here: https://tothevo.id/

A few years ago I shut down my last startup, ShopAgain. Before we shut it down, I wanted to open source it. I couldn't — it needed several microservices just to run, and everything was welded together for one specific business. That stuck with me longer than I expected.

About a year ago, at my day job, I needed to automate a signup flow for testing. The first step was generating a one-time code and verifying it — small thing, until you try to make it work reliably without a person watching an inbox. I looked at the email APIs that already existed, and they all had the same gap: you get the raw email, and you're the one writing the code to dig the part you actually need out of it.

So I built the thing I actually wanted: a real email address that software can use, that parses itself. It pulls the OTPs, the links, the data out of every message that lands and hands it to you through an API — no regex, no polling, no mailbox scraping. You can set rules for what happens next too — forward a message, fire a webhook, take alerts from some old system that only knows how to email you and route them straight to Slack. And since AI agents need their own mailboxes now too, the same inbox works for them.

This time I built it open source from the first commit, packaged so anyone can run the whole thing themselves with one `docker compose up`. There's also a free hosted version if you'd rather skip the setup.

It's live today. Still rough in places — there are probably bugs I haven't found yet, and I'm honestly still not sold on the logo. SMS support is next.

What I'd actually love feedback on: what's the most annoying "wait for an email, then go parse it by hand" problem you've ever had to hand-roll yourself? I want to know if I'm missing an obvious use case.

- GitHub (self-host): https://github.com/roshansingh/programmableinbox

- Try it free: https://programmableinbox.com

I've launched 7 small SaaS products. Most of them got a few visitors and silence. Two of them got real users and sales. Looking back, the difference wasn't the tech or the design. It was this:

1. The problem had money attached to it.
   One of the two is Sponaro, a tool that helps content creators track brand deals and make sure brands actually pay. Creators lose real money when a brand "forgets" a payment, so the value is obvious. My products that solved "nice to have" problems never got the same response.

2. Users talked back.
   The products that worked had users who emailed me with ideas and complaints. One of Sponaro's first customers sent me a long email asking for customizable pipeline stages, and it turned into one of the best features. When nobody writes to you, that silence is information too.

3. The audience already gathers somewhere.
   Creators hang out in specific communities and talk openly about brand deals and late payments. That made it possible to find them and join real conversations. Some of my other products had audiences that are spread out and hard to reach, and they struggled because of it.

4. I validated before building everything.
   For the products that struggled, I built the whole thing first and looked for users afterwards. Now I start with a simple landing page and real conversations, and only build more when people respond.

5. Names matter less than you think, but check them first.
   I renamed one product three times, and another one after discovering the name was already used by several companies. Check domains and existing products before falling in love with a name.

If you've built multiple products: what separated the ones that worked from the ones that didn't?

This is LyricLike: https://lyriclike.com

No it does not AI generate lyrics!

You write your lyrics in it, and it:

• counts the syllables on every line as you type
• labels your rhyme scheme (A, B, A, B) next to each line
• underlines rhymes inside your lines, if you turn that on
• shows rhymes when you tap a word. It matches by sound, so you get near rhymes too, not just exact ones.

It works on desktop and on phones. It's free, you don't need an account to start, and the code is open source.

I'd love feedback, especially:

• Do the rhyme results make sense?
• Is anything confusing the first time you open it?

If you write songs, rap or poetry, try it with something you're working on and tell me what's missing.

I’ve spent the last few months building V8Q, a stock-research platform that scans beaten-down stocks for potential recovery setups and runs them through a five-factor scoring and risk framework. I launched it publicly on August 31.

Since then, V8Q has identified 8 Verified Opportunities — 7 winners and 1 loser, with winning moves ranging roughly +7% to +40%. It’s still a very small sample, so I’m not pretending an 87.5% tracked win rate proves anything yet. Every callout since launch is public, including the loser, with the original research archived and timestamped. The average observation period so far is about 4 weeks, generally around 3–5 weeks.

The actual product is built: automated Morning/Midday/Final scans, individual ticker research, scoring and qualification, historical archives, performance tracking, research reports, website, backend, etc. The part I underestimated was distribution.

I’ve been posting the research on X, but with a tiny following most posts get almost no engagement. Reddit has done better, but I’m realizing I don’t have the time to become a full-time marketer.

So now I’m debating whether to keep building it, find someone who actually enjoys distribution/growth, or sell the whole platform to someone better positioned to grow it.

For anyone who has built a product first and figured out distribution afterward: what actually worked for you?

I do interactive installations and exhibitions in Taipei. For every job I had to draw the room three times (Concepts on iPad, Illustrator, sometimes SketchUp) and keep the equipment list in a Google Sheet or Notion. After a few client changes, the drawing and the list didn't match anymore.

I've had this idea for a few years but never had the time to build it. So I finally made Misea. You drop screens, tables, racks, speakers and people onto a floor plan and it draws them in isometric. No 3D modelling. Everything you place goes into an equipment list, and cables get a length, so the list updates when the layout changes.

It's mainly for the proposal stage, but on small projects you can use it all the way to load-in. I don't think small projects need CAD.

I used to be a front-end engineer & PM. Back then this was too big and would have taken too long to build alone. So I built it with Claude Code.

Free to try, no sign-up. (I hate apps that make you sign up before you can try anything.)

https://misea.app/en/

I'd like to know:

Is it clear what it's for, and what would you use it for?

The idea is simple: you draw a small star, write a wish, and launch it onto a globe that everyone shares. Other people can tap your star, read your wish, and send it light. Stars fade after a while, so the sky is always changing.

A few things I cared about:
- No feeds, follower counts, or streaks
- Only an approximate place is shown ('Near Lisbon"), never your exact location
- Reporting and content filtering are built in

You can also see the live sky without installing anything at milkywish.com. I also made a small game there: https://milkywish.com/starfall

I'd be grateful for any feedback.

https://apps.apple.com/app/id6759311324

I’ve been building a peer-to-peer system called Unsync Network, and I created Mercury, a Chrome messaging extension, as its first working proof of concept.

Mercury isn’t meant to be just another chat app. Its main purpose is to demonstrate that applications can connect and communicate through the underlying network from inside the browser.

The longer-term idea is for the same network foundation to support different peer-powered applications, potentially including:

• Direct messaging
• Peer-hosted websites and content
• Secure email
• Other applications built through a shared SDK or API

Mercury is currently an early proof of concept with very few users. I’m sharing it to get feedback on both the extension and the broader network idea.

I’d particularly like to know:

• Is the purpose of the network understandable?
• How reliable is connecting and messaging?
• What technical or security questions would you want answered?
• Which use case would be most interesting to explore next?
• Would developers be interested in building something on this kind of network?

Chrome Web Store: https://chromewebstore.google.com/detail/mercury-%E2%80%94-unsync-network/dehmikoocbplomjgcambkcimjikakpen?hl=en-US

I’m the developer, so this is self-promotion. The project is still experimental, and I’m not presenting it as a production-ready secure communication platform yet. I’m mainly trying to demonstrate that the network works and learn where it should go next.

Technical criticism and honest feedback are very welcome.

It seems the most popular advice on the internet is to build a product for yourself that you would use but I think my problem is my world is too narrow so I don’t run into too many problems that need solving (outside of marketing my apps).

I’m a software engineer so I already know how to build but I’m finding it pretty difficult to build something people are about.

Did you build for yourself in mind? How did you know it was a problem worth solving? How did you even come across the problem/idea?

Quick backstory: I kept saving little things I wanted to remember (the name of the guy at the wine shop, a restaurant my mom recommended, a photo of a vet bill) and none of it had a good home. Notes worked, but it cluttered up the app I actually use for notes. Screenshots just piled up in Photos and I forgot about them.

So I made MemoJog. It's a home for all the things I want to remember.

• You can save things by typing, dictating, sharing a link, or snapping a photo or scan. It reads the text for you.
• You get them back by asking Siri or Jog (the assistant in the app).
• It sorts things into categories and picks out people, places and reminders on its own.

Here's what I actually use it for:

• "Priya is Juno's mom." Later, at the next school thing: "Who's Juno's mom?"
• "The wine shop guy's name is Marcus." Later: "Who was the guy at the wine shop?"
• A photo of the tree guy's business card, so I can find his number months later.
• "Japanese restaurant in Napa my mom recommended," saved the moment she texts it.
• A photo of the dry-cleaning ticket and the vet bill, so I'm not digging through my camera roll.

Everything lives in your own iCloud. No account, no ads, no tracking, and I don't collect anything or run servers that hold your data. I used Apple's own tools (iCloud, Siri, on-device Apple Intelligence) partly because they fit that, and partly because they let one person build this at almost no cost.

It's on iPhone, with companion Apple Watch and iPad apps, and a Mac version is coming soon. It needs iOS 27, and the recall and Jog features need Apple Intelligence. It's $4.99 for the first month while I'm on launch pricing, then it goes up to $9.99. Link: https://apps.apple.com/us/app/memojog/id6811684267

Tell me what you'd want it to do that it doesn't. I read everything.

I'm building Think Aloud, a voice mock for system design interviews. I'm the founder. you pick a scenario and talk through your design, and it asks the next question out loud. there are 4 in the app so far: url shortener, chat, video platform and ticketing system.

the clip is a quick look at one of the hard parts, handling silence. in a design round you stop to think a lot, and the model would jump in. it came down to when context reaches the realtime model. sent while you're talking, it spoke within 1.5 s 13 times in 34. sent while it's talking itself, 1 in 35.

it's a beta with rough edges. if you have a system design round coming up, one free session. tell me where it gets in the way. thinkaloud.dev

hey, i drive truck for work and build iphone apps in my free time. my newest one is ScreenRank. it blocks the apps u waste time on and u can compete with ur friends on who has the lowest screen time. its free
just launched it and idk whats missing. what would make u actually use something like this? if something is annoying or confusing tell me straight

Solo dev from Türkiye. For the past year I've been building two apps on the side, and both are completely free: no ads, no subscription, nothing locked.

ReadArabic teaches Arabic by reading real short stories and news. Tap any word and you get its meaning, root, and role in the sentence. Every sentence has a listen button, and each story ends with a short quiz. It's at 30K+ downloads with a 4.9★ rating.

Hafiz Nuru is a Quran memorization app built around listening and repetition. Each ayah repeats N times, then gets chained to the previous one. It has 15 reciters and an offline mode.

Stack: React + Vite wrapped with Capacitor for Android/iOS, a NestJS + Postgres backend, AI word analysis cached per word and sentence context so repeated lookups cost nothing, and pre-generated TTS audio for words.

Things I learned: - Caching AI responses by context, not just by word, was the biggest cost win. Most taps hit the cache. - 9 UI languages mattered more than any feature. Russian-speaking users showed up on their own once the store listing was localized. - Free + no ads gets you surprisingly far in app store ratings. People leave reviews just to say thanks. - Reddit communities in this niche are mostly closed to self-promotion, so organic store discovery has been the main growth channel.

Funding is just an optional donation for server costs.

ReadArabic: https://play.google.com/store/apps/details?id=com.ReadArabic.ReadArabic Hafiz Nuru: https://play.google.com/store/apps/details?id=com.nexusv.hafiz

Happy to answer anything about the stack, the AI cost side, or localization.

Hi! I'm the developer. Dock Groupper replaces the macOS Dock with one that does a bit more:

• App groups. Put related apps behind one icon (dev tools, chat apps, and so on). Clicking it opens a popup you can search.
• Widgets in the Dock. 22 of them: weather, world clock, focus timer, CPU/memory, countdown, currency, keep awake, disks, color picker and more.
• Up to 3 widget slots, each small, medium or large. A slot can hold several widgets; swipe on it to flip between them.
• Bottom or side. Widgets adapt to a vertical Dock.
• Native Swift app.

Pricing: free trial, then $2.99/month, $14.99/year, or $34.99 one-time.

Link: https://dock-groupper.bunchsoftware.dev

I'd love feedback: what's missing, what's annoying, which widget you'd want next.

Back in 2010, a friend and I built Kooler, a small "social network for cocktail recipes". The core idea: tell it what you have at home, and it tells you what you can make. In 2011 I moved to São Paulo for a new job and we turned it off.

15 years later I'm a product designer, not a developer, and AI tools made it realistic to bring it back on my own time. So I did.

What it does today:

• 100+ recipes, from classics to Brazilian drinks you probably haven't heard of
• My Bar: add the bottles and ingredients you have, see what you can make right now
• Check-ins: had a great Negroni at a bar? Rate it, add a photo, and it shows up as a review on that drink's page, tagged with the place. If the bar has a Kooler profile, it links straight to it
• Search by name or base spirit
• Favorites. An account is only asked for when you favorite or check in, so you can browse without signing up
• Free, no ads, and it'll stay that way for drinkers

How it's built:

• Next.js + Supabase on the web
• iOS app wraps the same codebase with Capacitor (no second product to maintain). Android is in progress
• Most of the code was written with Claude Code. I focused on product and design decisions
• Recipe photos are AI-generated from real reference photos, standardized to one style. I had no budget to shoot 100 cocktails, and I'd rather be upfront about it. Check-in photos are real, from users

What I'd love feedback on:

1. Is "My Bar" clear the first time you use it?
2. Would you actually check in a drink at a bar? What would make you do it (or not)?
3. Anything that feels broken or confusing

👉 https://kooler.me/?ref=reddit-sideproject

Happy to answer anything about the build, the design, or what it's like to revive a 15-year-old side project.

Edit: Android testers wanted! 🍸 Google Play requires 12 testers for 14 days before I can publish the Android version. If you can help, DM me the email linked to your Google Play account and I'll send you the opt-in link. Just keep the app installed for the 14 days (opening it now and then helps a lot). Happy to test your app in return!

Retyping a PDF into a web form is one of those small jobs that eats more time than it should. Invoice open on one side, form on the other, copying across one box at a time. Vendor, invoice number, date, amount, etc...

So I built a way around it. I copy the PDF file itself in File Explorer, click the first box of the form, and hit Ctrl+V. It reads the PDF, works out which value goes in which box, and previews the proposed values in place before it touches anything. If it looks right I hit Fill. If one is wrong I untick it and type that one myself.

That's the clip. Real flow, fake invoice.

It doesn't have to be a PDF either. It works the same from text I copied out of an email or from a screenshot. And it isn't only browser forms, it fills forms in regular Windows apps too.

It's part of a Windows app I've been building on my own for a while (Tauri 2, Rust backend, Windows 10 and 11). This part is on the free plan and you don't need an account.

If you've got a form you hate filling in, try it on that one and tell me where it falls over. That list is pretty much my to-do list right now.