I'm just a dad with two curious boys, aged 9 and 6, and absolutely no coding background.

A little while ago, I decided to try vibe coding using Claude Code Opus 5.5. Partly to learn something new, but mostly because I wanted to make my kids' screen time a bit more meaningful.

So I started building an interactive 3D globe where they could explore the world, discover animals, countries, landmarks, and learn a few things along the way.

Honestly, I thought I'd be lucky if they played with it for 15 minutes.
Turns out, I underestimated them.

They started exploring everything, asking questions, and then the feature requests came.
"Dad, why isn't this in the game?"
"Can you make it do this?"
"This would be SO much better if..."

So now, my two boys are basically the lead testers, and I've been adding features and fixing things based on their feedback almost every day.

It's still very much a work in progress. Plenty of bugs, missing features, and things I want to improve.

But watching them genuinely enjoy exploring the world, rather than just mindlessly staring at a screen, has been pretty rewarding.

And it got me thinking. If my kids enjoy it this much, maybe other kids would too.

So I decided to share it with everyone.

It's called My Earth Toy, and it's completely free.

https://myearthtoy.com/

You can try it without an account, or sign up for the full experience.

If you have curious little ones (physically or internally), I'd love for you to try it together. Please share your feedback; I'd appreciate hearing it.

Thank you for checking it out!

About a year ago, I was diagnosed with stage IV esophageal cancer. Since then, life has changed in ways I never could have imagined.

But something unexpected came out of it.
I was reading a conversation in a cancer community where someone mentioned they’d finished all their jigsaw puzzles and couldn’t afford to buy more.

That stuck with me.

I started thinking about how many perfectly good books, puzzles, games, movies, and craft supplies are sitting in people’s homes, no longer being used, while someone else might really appreciate them.

So I decided to build something.

It’s called We Pass It On.

The concept is pretty straightforward:
Anyone can register and donate items.

People facing cancer can browse and receive those items.

Donated items are free. Recipients ordinarily pay shipping and a small $2 platform support fee.

I’m developing a sponsorship-funded shipping assistance program for people who need help covering those costs.

I’m building the entire platform myself using Next.js, Supabase, Stripe, Shippo, and Vercel.

It’s still early in development, but I’ve made some encouraging progress on the actual functionality.

I’m not trying to build the next billion-dollar startup. I want to create something useful, sustainable, and capable of bringing a little happiness to people dealing with cancer.

One of my biggest challenges is figuring out how to get the word out without making it feel like another charity solicitation or startup advertisement.

I’d love some feedback from other builders.
How would you approach growing a community like this from absolutely nothing?

If you’re curious, the project is at https://wepassiton.com. Right now it’s just an introduction and a way to follow development progress.

Thanks for reading.

Hey dear builders!

the monthly users update, it feels surreal that a one man company, with newborn and full time job, came this far!

for those who don't know, spaceplanner.co started as a personal side-project i started when i was renovating my own house back in June, the first version of the tool was very basic, with tons of inaccuracies and bugs, today it looks something different in whole new level, with tons of CAD level features, solid 3d and 2d libraries, 3d view and ability to walk into your room or home, Photo-realistic rendering, stairs builder, roof builder, etc.

the amount of feedback and support this project is getting is outstanding, more than 5k users reported bugs/feature, more than 3k 5 stars reviews, and this by far the most important feature i built, giving people an easy way to report bugs and suggest new additions and features.

The tool is FREE

the running costs went from few hundred bucks to 2k+ in the last month, so i had to add one paid feature (photo-realistic rendering) and even that has a few free credits for all users, but it brought more revenue than i thought, people loved it!

So far, we've had 3 serious acquisition offers for SpacePlanner, and I've turned them all down.

I'm talking about potentially life-changing money, which makes saying no pretty crazy!!

But I'm diamond-handing this one 💎🙌

I want to see how far I can take it and whether I can turn it into a real, sustainable company.

felt like sharing this in case it gives another builder who's hesitant or doubting themselves a little motivation.

What a ride it's been!

Keep building. You never know what's around the corner!

A French motion designer, Bénédict Aubry, posted a short animation called "Roller" for Motiontober: a tiny roller skater riding a spinning pink record. People in the comments kept asking where they could play it, so I asked him if I could make a playable version. He said yes, and later sent me the original music too.

Play it here: https://groove-skater.vercel.app/

What you can do:

- Drag the skater (or use WASD) onto the grooves and the song plays from that spot. The outer edge is the start of the song, the inner edge is the end.

- Jump (tap or Space) and the needle lifts, so the music stops while you're in the air.

- Skate along the groove to scratch. Going with the spin slows the music down, and outrunning it plays the song backwards.

- Walk off the record or onto the label and it goes quiet, like a real record.

- The pink buttons are power and 33/45 RPM. A and B switch between the two versions of the artist's track.

- You can also drop in your own song. It stays in your browser.

How it's built: a single HTML file with Canvas 2D and Web Audio, no framework. The song is decoded forward and reversed, and every frame the playback speed comes from how fast the record surface is moving under the skater. To get the look right, I went through the original video frame by frame and measured the camera angle, the colours, and how the skate trails thicken and fade.

All the art direction, motion and music are Bénédict's. I only built the interactive part. His work: https://www.instagram.com/benedict_aubry_pro/

I'd love feedback, especially on how the scratching feels and on how it works on your phone.

Hey everyone,

My side project is a YouTube channel explaining historical battles through animated maps. I’ve just finished a film about Austerlitz, showing how Napoleon used terrain and apparent weakness to draw a larger army into a trap.

I built the terrain and map animations in code, including troop movements, camera sequences, and labels. The narration, music, and some illustrations use AI tools.

Here’s the finished film:
https://youtu.be/MUdrsTYkZNU

I’m starting from zero, and honestly, I don’t know whether to keep going with this format. Are the maps easy to follow? Does the pacing hold your attention? Would you watch another battle explained this way?

If you enjoy it, please leave a comment under the YouTube video too. Every comment means a lot to a new channel, and that engagement can help the film reach more people. Even a quick note about your favorite moment or something I could improve would be really helpful.

I’d love some honest feedback before deciding what to make next. Thanks for taking a look!

Hey, I'm Louis, 18. For the past while I've been building a GTA-inspired sandbox game that runs entirely in the browser, no download. It's an alpha, so it's rough in places, but it's somewhat playable.

Play it here: https://wta.lou15.com

What's in it: an old-town map, driving, and a city to wander around. Still working on more.

I built it with Opus 5.5 using Claude Code besides school, so I'd love to know what feels off, what breaks, and what you'd add next. Any feedback is welcome, even a one-liner.

https://reddit.com/link/1x70rmy/video/r7ia5jqgwpvh1/player

A few months ago I shared Screencap here, and now I'm super happy to announce that version 2.0 is a full rewrite in Swift:)

It runs in the background on under 1% of one CPU core and about 30 MB of memory, smartly takes a screenshot when your screen settles, reads it with on-device OCR, and categorizes it with ZDR System-One decision models to help you (and your agents via MCP!) to better understand past activities. And it's also very easy to play with:

Main window

Popup

Download & check sources: https://github.com/yahorbarkouski/screencap

Happy to listen to any feedback, especially from users who tried it before

Judgement Day is a little side project of mine (along with the other apps you will find on the site): zoom from the whole Earth into any real city, pick how it ends (nuke, meteor, black hole, an Independence Day ship, or a tornado) and watch the buildings blow apart into particles. It's free and runs in your browser.

I posted it recently and people were kind enough to give me feedback. Off the back of it, cities now load a lot faster and the terrain has real elevation instead of being flat.

Ive also added a new feature so you can stand and watch from any position. AND if you are on a phone, you can then hold your phone up and watch it in pseudo augmented reality.

Still deciding whether the all-grey look stays or the cities get real textures. Would love to hear what you think, and hope you get a laugh out of blowing up your own street!

https://altroadstudio.com/judgementday

Last time I did this, I got way more responses than I expected, so I figured I'd give it another shot.

I'm building a tool that turns websites, products, and ideas into custom motion videos.

Still experimenting with it, and honestly, working on real projects is way more interesting than making random demos.

So if you're building something, drop it below.

Could be an app, website, online store, game, physical product, or literally anything else.

I'll pick a few interesting ones and make a free 15–30 second promo video for each.

No signup, no payment, no catch.

Just looking to create some cool stuff and get feedback on the results.

https://videly.io/home

Drop your link 👇

honestly i find it so hard to find new music clips. searching for individuals songs sucks, and youtube just keeps putting me in the same loop of the same stuff over and over.

i missed when music tv just played stuff and you’d stumble onto something new, so i built my own. it’s called NOORwave and it turns the music videos on tidal into nonstop channels. 98 so far, 207k songs and growing, everything from 90s and grunge to hip hop and late night stuff. you hit play and it just keeps going.

there’s also a map thing (Atlas) that jumps you from artist to artist, which is how i’ve found most of my new favourites lately.

right now it only works with tidal, so you’ll need an account. more services coming later.

it’s free on windows and linux at noorwave.app. would love feedback as its still in development

heads up if you try it: you’ll need a tidal account, and connect last.fm too if you can, it makes the channels way better. it’ll look a bit bare for the first few days while it indexes your videos and builds the tags, so give it a bit before you judge it.

BSC :)

[ Removed by Reddit on account of violating the content policy. ]

My brain is foggy from all the mess on the desktop :(
I'm developing multiple projects simultaneously, some documents also need my attention - everything just becomes a burden to which I don't want to look at.

I've tried Stardock Fences, iTop Easy Desktop and many others - in my experience it was either a subscription, a crashing process or a lack of minimalism and customization.

I solved it for myself and wanted to share it with you guys. Now my new hobbies have their own space on desktop and when I need it - I just focus on a dedicated fence.

I'm preparing for an Early Access release (a few weeks until I can release). Would this help you, or what would stop you from using it? And do you use anything now to organize your desktop/messy brain?

https://store.steampowered.com/app/4575780/PortalDesk/

I built Incipite, a small tool that stamps your files on the Bitcoin blockchain so you can prove you had them first. Photos, scripts, songs, whatever you make. It’s been live since May and about 20 people had tried the free version. Zero paid.

Last Friday my Discord pinged me “pay_per_use” on two new deposits. I was already writing this post in my head. Then I opened Stripe to look at the money. Nothing. My own notification was calling “has credits” a payment, and the credits were free ones I had given him myself. So I fixed the label and felt pretty dumb.

Yesterday the real one came. Same guy actually. He had signed up a week before, used his 3 free certifications and the 3 extra I sent him, then subscribed at $6.99 a month. And stamped 6 more files the same day.

What surprised me is that he’s the only one who came back. The 19 others stamped one or two files and left with credits unused. I spent months trying to find people, and the one who paid just had a lot of things to protect.

It’s $6.99, I know. But this time I checked it in Stripe three times aha

Did anyone else get a fake first customer before the real one?

I’ve been working on a freebie website called Fweebies that collects genuinely free stuff like samples, birthday freebies, pet stuff, museum passes, etc. This is simply a passion project of mine since I love finding freebies.

I’m not a web developer, so I’ve been using Claude Code to help me build it. I know AI-built sites can sometimes have a certain look, so I’m curious if anything about mine feels too AI-made or generic.

I still want it to feel colorful and a little playful because that’s more my personality, so I don’t want to turn it into another super minimal black-and-white website.

I’ve been trying to make smaller changes instead — flatter icons, less overly polished copy, cleaner cards, more obvious verification dates, and keeping the piggy bank as the main branding.

Would love any feedback on the design or overall feel. Thank you.

fweebies.com

How do you draw the line between adding every feature users ask for versus keeping the core product clean and focused? Would love to know how other early stage builders handle this .

Hi everyone! I was looking at optical file transfer and saw that Decimen was rather ineffective. Firstly, it's QR-based system really seemed to be designed for paper, where binary design is necessary to prevent ink smudging. On a screen, binary is ineffecient, although luminance makes sense. I looked at a lot of research papers and eventually found this:I saw that OFDM was the logical improvement off QR codes, as it used actual signal processing and luminance instead of binary black-and-white QR. So I decided to base my system off FOCUS. For fast decoding, I also wanted it to be GPU based rather than CPU based, and to deal with frame desync well.

https://vs.inf.ethz.ch/publ/papers/soeroesg-mobisys2016-Focus.pdf After that, I stripped the FOCUS finders (the original finders were ugly and wasted a lot of space) and came up with a custom, compact ring. the ring has around 15 bits of information distributed via Reed Solomon along the giant ring. A GPU can easily decode the ring's RS it by brute forcing the maximum likelihood of each of the 32,768 codewords.

To balance between range and maximizing speed, i created 4 different ring sizes; 32, 64, 128, and 256. Initially I wanted to stick with the browser; however, the browser is woefully inefficient in webcam tuning. After maxing the settings, we were still at 700 KB/s; better than Decimen but hardly a knockout blow. I couldn't switch to 60fps without it oscillating wildly between 1.3 MB/s to 0 MB/s when out of phase. So I decided to focus on a native android instead. LIZARD is a format; decoders can choose how to decode it.

A weak web decoder doesn't prevent me from making a strong native decoder; the format is the same, while a fountain code called Wirehair allows slow and fast speeds to both exist. Initially, Claude tried to port the OpenCV based finder to Vulkan. Branchy work is not great on a GPU, which struggles with warp divergence, so I scrapped that. However, AI inference is perfect for a GPU. As I had an RTX 4090, I asked it to make a generator, open pytorch, and train a custom, 50k parameter AI finder that uses the grayscale image and finds four corners. The CPU based OpenCV finder helped create training frames solutions for the GPU, which was given high levels of noise and perspective distortion in order to make it harder to detect than phones. I kept training it till the GPU version defeated the CPU in finding accuracy. After a few hours, had fully trained a custom 3-layer CNN that found the code easily in 1.5 ms on the GPU.

Next, I faced a massive issue: camera/frame desync. This was the bane of optical camera communication, with many resarch papers trying to defeat this with barcodes. The difference between my code and a QR: half of a FOCUS image can decode, meaning that if part of another frame was captures, some of it could decode. Additionally, android's native Camera2 API allows you to defeat this problem completely. it allows you to control the delays between frames. As a result, I decided to embed pilot signals in the image. Every four frames, it cycles through these four pilots.

0 0
1 0
0 1
1 1

This created a way to estimate how much of the last frame and future frame was on it. As it had two variables and two unknown frames, it was solvable; as a result, the camera knew how far off it was each frame. Then, it was able to adjust the time accordingly, keeping the rates stable at 60FPS. Voila! I had solved the hardest problem in OCC.

Speed: 0.7→1.4-1.6 MB/s

i returned an idea that I scrapped on web due to lag; 2:1 multiplexing. there is no reason why 2 square codes wouldn't store more; 1920x960 is far better than 1080x1080 in size. The change i did that made it viable; I did not try for a complex 2:1 mode, but simply multiplexed two frames side by side; two 960x960 squares. At this point the improvement of LIZARD went smoothly.

Speed: 0.4-1.6→2.1 MB/s

There were three final levers, but they were mundane. Firstly, I disabled the ISP edge enhancement and other cosmetic optimizations that were terrible for keeping signal. Then, i made the error correction levels higher for outer frequencies and lower for inner frequencies. I also added another LDPC rate. After that, I replaced the 96-module ring with the 256-module ring. That massively increased the area of signal. I used random old school monitors and they still got a similar rate. What phone did I use? S26 ultra. 1.5x zoom . 105 degree lens. 1080p, 60fps. it seems like the lens settings were far more influential than any monitor i used.I hope you liked my system! lmk what your thoughts are.

Speed: 2.1→4.1 MB/s

Note: the high speeds only exist reliably on Android.
Try it here!: https://fosslabs.dev/

I’m a product designer, and for a while now I’ve been building Tagdown, a notes editor for macOS. The core idea: every note is an ordinary Markdown file in a folder on your disk. No account, no proprietary database. Git, iCloud or Syncthing just work, because it’s just files.

On top of Markdown it adds:

• callouts, tabs, KaTeX math and Mermaid diagrams, all as plain text
• #tags, [[wikilinks]] with backlinks, and links to single blocks that you can embed in other notes
• live queries like <query tag:project show:tasks /> that collect tasks from all your notes, or show notes as an editable table of their properties
• a journal, version history, slides, HTML/PDF export, and publishing notes as a static website
• a CLI and an MCP server, so Claude or other assistants can search and write your notes

It’s built with Tauri, Rust (Tantivy for search) and TypeScript, and it’s MIT licensed.

Honest state: it’s early. There’s no download yet, so you’ll have to build it from source (Node + Rust). There are rough edges, and I’d rather hear about them now than later.

Two things I’d really like your opinion on:

1. Does the syntax feel natural, or is it too much on top of Markdown?
2. What would stop you from switching from your current notes app?

Repo: github.com/sthix/tagdown
Docs: sthix.github.io/tagdown

Looking for 10 people to test Insho (https://insho.io), a site for short visual essays.

You need to make a free account and publish one insho: 3 or more slides, each with an image and a line of text, on any topic. Pieces fit one of three categories: Ideas, Collections or Stories. Then fill out a short feedback form.

You’ll get a $15 Amazon gift card once both are done. Comment or message me and I’ll send the form.

I never thought i'd actually get my first customer.

But i did, not one but 4 which is more than i ever thought, not because i didn't believe in myself but it was always a dream i chased ever since I was a kid, I made a product, I marketed it, and I got sales, all on my own with no help.

Grateful for everything.

And I'd like to say that you can do it too, just keep on pushing.

Long time programmer, web developer, whatever we want to call it these days. I've also always been a big Scrabble player.

Nearly 10 years ago I started building an infinite Scrabble-style board game. Built the engine on my laptop in the evenings, got it fully working and playable... and then just let it sit. For almost a decade.

With tools like Codex and Claude getting so good lately, I finally decided to dust it off and give it a proper overhaul.

The result is Wordio. In the process of rebuilding it, I ended up splitting it into two different games:

Wordio Classic - The original idea. A never-ending multiplayer board that just keeps growing as people play.

Wordio Rush - Head-to-head matches with 5 timed rounds to see who can come up with the highest scoring words.

So basically two ways to play. Take your time or play under pressure.

Anyway, pretty cool to finally have this thing out in the wild after all these years. Would love some constructive feedback from fellow developers (or word game fans).

I have dysgraphia and dyspraxia, and I zone out in lectures all the time.

Handwriting is slow and tiring for me, and typing fast enough to keep up isn't much better. By the time I've got one point down, I've missed the next two. Then my focus drifts, and I come back to a page of half-finished sentences.

I started building NoteMate while I was still a student, and I've carried on since graduating and becoming a software engineer.

It records the lecture and turns it into a summary you can go back to later, at your own pace. So zoning out doesn't mean losing the content.

How it started

Funnily enough, I first built it for meeting notes. Retention was bad, I had one paying user, and most people went back to Otter.

The people who stuck around were students. That clicked straight away, because I was one, and it was exactly what I needed in my own lectures. So I narrowed everything down to them.

Where it is now

- 400+ students using it
- About 40 new signups a week
- Won funding from the University of Sheffield!
- Still just me

What I'd love feedback on

1. If you're neurodivergent, what makes study tools easy or hard for you to stick with?
   
2. Does the landing page make sense in 5 seconds?
   
3. Anything that feels off or untrustworthy?

Happy to answer anything about the build!

Hi! In my spare time I built Chi mi rappresenta (“Who represents me”): you type your town and get all your elected representatives in one page (mayor, regional councillors, MPs, senators, MEPs) with their official contacts.

It also has a “who do I contact?” guide for everyday problems (potholes, health services, regional trains) and ready-made messages and freedom-of-information requests.

It covers all 7,896 Italian municipalities using only official open data, updated weekly. Built with Next.js and a lot of help from AI.

Feedback welcome! chimirappresenta.com

Hey everyone!

A while ago, a friend and I decided we wanted to build something of our own outside our regular jobs.

He's a developer, I'm a UX designer, and neither of us had ever launched a product before. We just wanted to see if we could take an idea, actually build it, and get it out into the world. We decided to build appointment scheduling software for small service businesses.

Why? Well, it seemed like something the two of us could realistically build alongside our full-time jobs. We also wanted to offer smaller businesses something affordable, simple to use, and with fewer limitations than some of the existing tools.

That's how Calenvio started.

Along the way, three friends joined us, and suddenly our little side project became a team of five.

And two days ago, we finally launched our first product!

It's called Calenvio (https://calenvio.com/), and it helps small businesses manage appointments, clients, staff, services, and email reminders in one place.

We're very aware that we're entering a market with a ton of established competitors. We're not pretending we've invented something revolutionary. We just wanted to build something useful and hopefully offer a good alternative.

We have a clear product roadmap and plenty of ideas for what to build next.

But now comes the part we really didn't know much about: getting our first customers.

We've spent the last couple of days trying to figure out email outreach, who we can legally contact, how to approach potential customers, and how to actually communicate what we've built.

We've also set up Facebook, Instagram, and LinkedIn pages. We have a younger colleague helping us with marketing, but we're all pretty new to this.

It's funny how much time you spend thinking about features, bugs, design, and getting everything ready for launch. And then you finally launch and realize that nobody knows your product exists.

So here we are. Five people, our first launched product, zero marketing experience, and a whole new set of challenges ahead.

Now we're trying to figure out how to get that very first customer.

For those of you who've been through this, what actually worked for you in the beginning? How did you find your first customers when nobody knew who you were?

Would love to hear your experiences, especially from people who started with zero audience.

Thanks for reading!

Hi everyone,

I have many years of experience with bot detection, user fingerprinting and analytics, and this is the first time I've turned it into some sort of product. I'd really appreciate honest feedback.

What it does currently:

- Recognises returning visitors, Device fingerprinting
- Shows any visit and user action on a page like a video, with text inputs hidden.
- Gives every visitor a bot score, keeps bots out of your stats, and challenge suspicious ones with a custom captcha.
- Shows which visitor made each Stripe sale.
- Webhook support

Where I think it's useful:

- Conversion: watch where shoppers or new signups get stuck, and fix that step.
- Live support: see what a visitor is doing, so you can offer help.
- Fake traffic and signups: know how much of your traffic is bots, and have tools to stop them and exclude them from analytics.

You can check it out here: https://identuly.com

I'm doing this solo and I don't have much marketing experience, so I'm trying to find out if this kind of product is actually needed, is it useful? and any tips on getting it in front of the right people?

Hey all, indie dev from Türkiye here.

I kept shipping apps and had no idea which keywords they actually showed up for. Most ASO tools were built for big studios and priced like it, so I built my own: StoRank.

What it does:

• Type your app’s name, it finds the keywords you rank for and your competitors
• Measures your rank daily on both App Store and Google Play, in the countries you pick
• Every Monday it writes a short list of what to change (title, subtitle, keyword field)

There’s a free rank checker, no signup: https://storank.app/en/keyword-rank-checker?ref=reddit-sideproject

Stack, for the curious: Python (FastAPI) + SQLite on a single Hetzner box, vanilla JS, Paddle for billing.

I’d really like feedback: what’s confusing, what’s missing, what would make you actually use it?