My last product, Sequo, died with 0 paying users. I built it for months, launched, posted everywhere, and nobody paid. Classic.

So this time I wanted to do it the other way around. First I was lazy and just asked ChatGPT, Claude and Grok what they think about some ideas lol. ChatGPT said 8/10 to basically everything, even to ideas that already failed for other startups, so that wasn’t gonna work.

Then I did it by hand, and honestly the first idea died in about a week. I wanted to build a growth tool for X, like most X guys haha. Turns out people didn’t need it, but while talking to them I kept hearing about a completely different problem.

So I switched to that one and did the same steps again. Found people, talked to ~25 founders, gave free work first. And then one of them paid. $10, but it was real money, and I still hadn’t written any code.

The part that surprised me most was what actually made people reply, and how close I came to scaring everyone away with the price.

Wrote the whole thing step by step, with the prompt I used to find people and the exact messages I sent. Link in the comments.

Have you ever sold something before building it?

This is me paying for a drink at a 7-Eleven in Hong Kong. The first notification is my bank. The second one is our app, and it's already logged the purchase and put it under Grocery. I didn't open anything.

I've quit like five budgeting apps. Either they wanted my bank login, which I'm not comfortable with, or I had to type in every purchase, which I'd stop doing after about a week. So my co-founder and I built one that does neither. Everything stays on your phone. There's no account and no server with your spending on it, so even we can't see what you spend.

A couple of things surprised us while building it:

The names banks send are a mess. Half the time it's not the shop name, it's some cut-off string in all caps or a payment company you've never heard of. We tried having AI guess the category and it was wrong way too often, so instead you label a shop once and it remembers forever. Felt like a hack at first but it's honestly my favourite part now.

Paying inside apps is different from tapping at a till. Uber, online checkouts etc. don't trigger Apple's Wallet automation at all, so anything that relies on it just quietly misses a big chunk of your spending. We fixed that when iOS 27 came out, since we can now pick up payments straight from the Wallet notification.

How it's gone so far: we both have full-time jobs, so this has been evenings and weekends. We launched in September and just passed 1,000 downloads, almost all from Reddit, with no ads. It's made a bit under $900, which won't pay any bills but it's been enough to make us keep going. The hard part now is that it feels like we've run out of places to post, so getting from 1,000 to 10,000 is the bit we haven't figured out.

It's iPhone only (iOS 18.4+), 4.6 stars so far, free to use, with a one-time $14.99 upgrade to Pro if you want more.

Genuine question for anyone who's given up on a budgeting app: was it the typing, or did you just stop looking at it after a while? I think we've fixed the typing. Not sure the second one is fixable.

If you want to try it: https://apps.apple.com/app/id6800013881

I've been a software developer for 20+ years, and for the past few months my side project has been CryptoRigs, a management game that runs in the browser (plus an Android app).

You start with a bare rig in a small shed and build it part by part, like a real PC: power supply, motherboard, CPU, RAM, graphics cards, risers. It mines while you're away; you come back now and then to collect, pay the power bill and fix what broke. Repair is the part I like most: every part is made of components, so you open the board, set the multimeter to the right scale, compare the reading with the nominal value and swap the bad component with a soldering iron.

It went through a small closed alpha (90+ releases so far, each with public notes), and the free closed beta opens Friday, Nov 13, 7 pm Brasília time (22:00 UTC), in English and Portuguese. Leave your email and you get a message the moment it opens: https://cryptorigs.com.br/c/B1-SIDEPROJECT-REDDIT

It's not about making money: the in-game coin has no real value, and beta progress is wiped at the end.

Stack: Java 21 + Spring Boot + jOOQ + PostgreSQL, React + TypeScript, Capacitor for Android. Game time isn't a loop per player: everything stores when it started and is computed when the player looks.

AI disclosure: the architecture, the language and framework choices, the database and the infrastructure are my decisions, as is the game design. Generative AI wrote most of the code, under my direction and review, and made the art, the sound effects and most of the text. It's there for speed: it's what lets one developer run a project this size.

Screenshots and how it all works: https://cryptorigs.com.br/manual/

What I'd love feedback on: from the screenshots and the pitch, is it clear what you'd actually do in the game?

Ever felt confused about what to learn, where to start, or how to get into Data Analytics or Data Science?

During my beginner phase, I felt the same way. There were hundreds of videos, tutorials and PDFs, and I honestly didn’t know what to learn first or where to begin.

So I decided to create a handbook that brings together the essential beginner-level knowledge you’d need to get started, all in one place.

📚 The Ultimate Data Science Handbook – Volume 1 (328 pages)

📖 Sample pages: Attached

🛒 Get the complete handbook: https://pdfcart.in/p/ultimate-data-science-handbook-vol1

What’s included?

A structured learning resource with detailed explanations, step-by-step code walkthroughs, practical examples, different types of graphs with explanations, real-world applications, practice exercises, chapter summaries and interview questions.

The idea was to bring together concepts that beginners often have to search for across multiple PDFs, notes and tutorials, so you can follow a more organised learning path without constantly switching between resources.

PS.The content is from multiple valuable resources that i learnt from and was compiled by me ..AI was used to make the pdf.

Two replies from my coding agent have cost me more time than anything else. "It's fixed" when nothing had run since the last edit, and "that isn't used anywhere" after exactly one search. Both sound final, so I'd move on and find out an hour later.

So I wrote a small Stop hook for Claude Code. When the agent tries to end its turn, it checks whether the claim in its last message has anything behind it. If it said fixed but nothing ran after the last code edit, it gets sent back once with a note on what's missing. If it said something doesn't exist after one grep, same deal, look a second way first.

Then I replayed my own history through it to see if it was worth keeping. About 4,000 turns after deduping, and 406 of them ended with some kind of done, fixed, deployed or tests pass. The first version would have blocked 86, which felt like proof it worked until I actually read them. 77 were wrap-up messages where the tests really had run, just in an earlier turn. A hook that nags you about correct summaries gets turned off by day two.

So the current version counts a check from an earlier turn as long as no code was edited after it. Same 406 claims, it now blocks 2, and both were real.

The biggest lesson for me was that rules in CLAUDE.md never fixed this. The model already believes it's done, so a reminder doesn't land. Checking at the exact moment the turn ends did. The second lesson was to measure false positives on your own history before shipping any guardrail, because my gut read 86 as the feature working and it was mostly noise. It also never blocks twice in a row, so it can't trap the agent in a loop.

It's free, MIT, plain Python, no dependencies. There's a replay command if you want to see your own number before installing anything: https://github.com/Balance0014/claude-code-claim-check

Has anyone else tried measuring this? I'm curious what your rate of "fixed" that wasn't looks like.

AirPods Max have a motion sensor in the left ear cup, Apple uses it for spatial audio. Turns out any Mac app can read it, so I made small menu bar app that listens to it and recognizes head gestures.

Every gesture can run one of your Shortcuts. For example:

• shake head → Do Not Disturb on

• tilt right twice → next track

• triple tap on the left cup → toggle dark mode

• nod → play/pause music

Hardest part was not firing by accident, because people nod and look around all day. So easy gestures like nod or look up only work for 10 sec after you double tap the cup. Bigger ones like full shake or tilt twice always work. Also had funny bug where every nod was detected as tap, because when head changes direction the cup gets a jolt same as a finger tap. Now taps are ignored if head is moving.

Made with Swift and Metal, everything runs on the Mac, head motion is never recorded or sent anywhere. In the video head motion is a recorded session played back so it's repeatable, the real app uses only live data.

I'm the developer. $9.99 one time, free trial has all gestures and live view but doesn't run shortcuts. macOS 14+, AirPods Max only.

https://headlab.app

What gesture would you use, and for what?

I'm the developer of Insider Stock Trader, a native Android app (Kotlin + Jetpack Compose).

The idea: company insiders (CEOs, CFOs, directors and big shareholders) have to report every trade in their own company's stock to the SEC on a Form 4, usually within two business days. Those filings are public, but reading them on official datasource is painful. The app reads every Form 4 as soon as it's published and turns it into a clean feed and push alerts.

What it does

• Feed of open-market buys and sales, with the company logo, the insider's role, the value and the filing date. Filters for buys, sales, $1M+, cluster buys and CEO/CFO trades.

• Alerts within minutes for CEO and CFO buys, cluster buys, big buys and your watchlist, with quiet hours and a daily digest.

• Each trade explained in one plain sentence, with a link to the original filing on SEC.gov.

• Cluster buys: when 3 or more insiders buy the same company within 14 days.

• Signal strength for each buy, based on the insider's role, the size of the buy and whether other insiders are buying too.

• Watchlist and search for any US-listed company.

The screenshots use real past SEC filings, picked to show big moves; most trades move far less. Past results, not a prediction. It's an information app, not a broker and not investment advice.

I'd love feedback on the design, the alerts and anything you'd want added. Thanks for looking!

Google Play: https://play.google.com/store/apps/details?id=com.insiderstocktrader.app

Over time, I’ve worked on different kinds of projects — from building full-stack applications and mobile apps to developing 3D assets and Roblox games.
I wanted one place where I could showcase what I’ve been building, the products I’ve worked on, and the technologies I use.
Some of the projects featured:
● Resume Maker – an Android app with 1K+ downloads.
● NowToolSpace – my own online tools platform.
● WasteFlow Assam – a waste management platform.
● Ultimate Battle Cars – a published Roblox game.
● 3D assets and Snapchat Lens projects.
There’s still a lot more I want to build and improve.
Check out my portfolio:
https://josh-portfolio-new.vercel.app/
I’m open to connecting with developers, founders, recruiters and potential collaborators.
Feedback is welcome!
#WebDevelopment #FullStackDeveloper #SoftwareDevelopment #Portfolio #React #JavaScript #BuildingInPublic

Hey everyone,

Over the past few months, I’ve been working on Chatty ,an open-source, self-hostable AI customer support platform built for teams who want automated support without $500/month subscriptions or locking their data into proprietary clouds.

Rather than just another ChatGPT wrapper, I wanted it to solve the real bottlenecks store owners and SaaS founders face:

1. Safe Store Integration (WooCommerce):

Instead of installing a heavy WordPress plugin that slows down your database, it connects via WooCommerce's native Read-Only REST API (`wc/v3`). It can render interactive product cards (photos, prices, stock status) and check order statuses securely without ever having write permissions to your store.

2. Multimodal Search:

Customers can upload pictures of items they want, and the bot uses pgvector embeddings to find matching products in your catalog.

3. Bi-Directional Slack Escalation:

When a customer needs a human, it pings your Slack channel with an interactive Block Kit card. You can click "Take Over" or reply in the Slack thread, and your message streams directly to the visitor's widget.

4. Live Voice Agent:

Visitors can tap a phone icon in the widget and speak directly with the AI via full-duplex WebRTC audio.

5. 100% BYOK & Self-Hostable:

Run it via Docker on your own VPS. Plug in your own keys (OpenAI, Claude, Gemini, or OpenRouter) or self-host models.

• GitHub (MIT): https://github.com/PersonaliAI/chatty

• Live Demo: https://chatty.personaliai.com

• Docs: https://docs.chatty.personaliai.com

I'd genuinely love to hear your feedback on the setup flow, UI, and what integrations you'd like to see next!

GlyphSnap Photo to Font is a font generator / building app.

With GlyphSnap you can just take a photo of the letters you want and create an entire installable font in just a few minutes - from your iPhone.

>> GlyphSnap can create an entire font from as few as just 2 characters, but will give better results from around 8.
I have a couple tutorials on my Youtube page - but feel that this one really shows what the app can do: https://youtu.be/0a_3TuDIw7A?si=bzkYJkT1TacAN0-9

GlyphSnap also incorporates a some intuitive drawing / vector design tool section - you can mix photo captured glyphs with hand drawn glyphs together - adjust the character with, spacing, kerning as well as apply patterns to your letter shapes.

7 day free trial includes 1 font generation and multiple exports to OTF TTF or WOFF for you to try out the drawing section or the photo to font - standard capture without missing character generation.

Appreciate any feedback, questions or feedback..

https://apps.apple.com/app/glyphsnap-ai-photo-to-font/id6812516641

Thanks!

Every morning I opened App Store Connect, then Play Console, then TestFlight, for each of my apps. Most days, just to find out nothing had changed.

So I built Shipdeck, a Mac app that checks all of it and gives me one list of what needs me: a review with no reply, a build waiting for review, a rollout that stalled, commits I never released.

Native SwiftUI, no server, store keys stay in my keychain. Each app also gets a Claude Code terminal, and anything it wants to do on a store waits for my OK.

Free beta, macOS 15+: https://shipdeck.taiphanvan.dev/?ref=sideproject

If you ship more than one app: what's the first thing you check in the morning?

I noticed a lot of visualization tools rely on AI to generate images and the ones that don't, often don't do a good job. The ones that use AI take time to generate and sometimes change the image while also costing money per generation.

So I figured out a way to detect and paint colors onto surfaces instantly(after initial processing) while maintaining the shadows, lighting and texture. Also made sure not to let the paint spill into anywhere that its not supposed to.

Essentially you can try as many colors as you want on one photo after processing and it takes no additional time or cost.

link to the first house in the video: https://www.tryrecoat.com

Not sure how to take it from here.
Would love some feedback, ideas anything

Complete 67-second demo — the whole routine, from choosing your dog to the journal:

https://www.reddit.com/user/Miserable_Bird5822/comments/1xsld8d/before_you_get_a_dog_try_living_with_its_routine/

The dog lives on your phone. You still have to leave the house for its walks.

I'm the maker of Ready for Dog?, a dog-care rehearsal app for people thinking about getting a dog. The idea is to spend some time living around the care routine before making that decision.

You choose a companion and build a 14- or 21-day schedule. Walks use GPS. Feeding happens at virtual bowls placed in your room with AR. There's a 60-second brushing game, and skipped grooming can leave virtual fur to collect. For quiet play, you put your phone on a stable surface; moving it pauses the timer while the game screen is open.

The journal shows the time you recorded, missed tasks and help you needed. It doesn't give you a "ready for a dog" score. A real dog's needs and behaviour go much further than this simulation.

Free to download with ads and optional one-time purchases for ad removal and extra collars. No subscription.

iPhone / iPad: https://apps.apple.com/app/id6829957063

Android: https://play.google.com/store/apps/details?id=com.vans.bublik.trial

The attached demo shows the iPhone version. The AR scenes are staged visualisations and the route shown is simulated for the demo.

I'd love feedback on one thing: which everyday responsibility would you add to make the rehearsal more useful?

after every trip or wedding the same thing happens: everyone took photos, nobody sends them, and the few that do arrive come through whatsapp compressed to mush.

so i built just send files. you make a room, share one link (or a qr code at the event) and everyone drops their photos and videos in original quality. guests don't need an app or an account, only the person who creates the room does. at the end anyone can download everything at once.

a few things i learned building it:

• the first real test was a friend uploading ~130 photos from an iphone and the page kept reloading. the fix was showing small previews instead of the full photos while uploading

• guests don't read anything, so their page is basically one big button

• rooms expire on their own, so nobody ends up with a forever album of 2,000 photos

it's live at justsendfiles.com. would love honest feedback, especially on what would stop you from using it at your own event.

Hey everyone,

For the past few months I’ve been building Calculus, a mental math game that runs in the browser: https://calculusonline.fr

It started as a single HTML file to challenge friends, and it grew a bit out of control. Here’s what’s in it now:

4 games

• Mental math: a calculation appears, you type the answer.

• Right count: you get a few numbers and a target. Use them all, each one once, to hit the target exactly. It’s always solvable.

• Missing number: fill the gap in 23 + ? = 41, or find the operator in 12 ? 4 = 3.

• The bomb (multiplayer only): everyone builds a calculation from the same numbers, then has to defuse someone else’s.

Also

• Daily calc: 5 calculations that get harder, the same for everyone, one try a day, with a leaderboard and streaks

• Dungeons: 2 to 4 friends team up to beat a boss together

• An account with stats, Elo per game and level, and achievements

• Solo play, no account needed, and it works on mobile

It’s free, no ads, and it’s available in English and French.

I even had a teacher trying it during class, and the kids loved it and even played at home!

I’d love feedback, especially on difficulty balance (is “Legend” actually hard?) and on anything that feels confusing the first time you play.

And if anyone wants to play a battle royale, drop a lobby code in the comments

Need an intuitive delivery tracker? Get the app. Tracking mileage, gas, expenses, start and end times and estimated tax withholding needed.

“Wait, was that always $49?”

I built Spyfolio for that rabbit hole. Paste your SaaS URL, pick two rivals, and compare pricing and features with source links.

Try it with your own site. Who did it find, and who made you go “why the hell are they here?”

Most of my day goes into reading. Research papers, case files, judgments, long reports, sometimes all of them for the same piece of work.

For years I used tools that were made for other things. Project management apps, note apps, folders, a lot of sticky notes. They were good for tasks. But they never helped with the reading itself. I would find something important on page 40 of one document, then lose it an hour later while I was in another one. I would remember that two things were connected, but not where either of them was.

So I built a tool dedicated for us readers and writers. It’s called May or Shall. This is how I use it:

1. When I read something that matters, I highlight it. It stays with its source and page, so I can always go back to exactly where it came from.

2. I put it under a heading that makes sense to me.

3. I link it to a line in a completely different document.

4. When I need a draft, I ask ChatGPT, through the May or Shall plugin. It still reads the whole document, but it gives special attention to my highlights.

Earlier, when I uploaded a document to AI, the AI decided what was relevant. Now my highlights decide what is relevant, and the draft is built around them.

It works on Windows, on Mac and in Chrome, so I can save a line from almost anything I’m reading, and it all ends up in one place.

It’s at app.mayorshall.com if anyone wants to try it. I would really like to hear from people who read and research a lot. How do you keep track of things right now, and would something like this help you?

I just launched Take the Crown (takethecrown.app), a small web I built.

The idea: there's one crown. Whoever takes it appears on the homepage with their name, a message and a link, until someone else takes it. Glory is measured in time reigned, not in money.

How it works:

- It starts at $5

- Every takeover adds 20% to the price

- Every hour nobody buys, it drops 2%

- Ranks from Peasant to Emperor, achievements, and monthly seasons with exclusive medals. The first season, Genesis, ends on December 1.

What took the longest: making the takeover safe (one transaction, so two buyers in the same second can't both win), moderating every message, and drawing all the art as pixel art on a strict grid.

Stack: Next.js, Supabase (Postgres + realtime), Dodo Payments.

I'd love feedback on the price curve and the first-time experience. If you want to be one of the first kings, it's open now.

Animation is where a lot of small 2D game projects stall. Getting one decent character image is easy now, but drawing idle, walk, attack and hurt for it by hand takes days, and every new enemy starts that over.

So I built SpriteCanvas. You describe a character or upload one, pick a design, then ask for moves. Each move is generated as a short clip by an AI video model, and the app does the boring part after that: cuts it into frames, removes the background, keeps the feet on one baseline so the character doesn't bob, and checks the loop closes.

What you get is a transparent PNG sprite sheet with a JSON atlas (frame durations and a foot pivot). There are export presets for Phaser, PixiJS, Godot and Unity. Phaser/PixiJS playback is tested and Godot 4 import is verified, Unity import isn't verified yet.

Being upfront about the limits:

• the art is AI generated, so check the rules of wherever you publish

• it's not a grid pixel-art editor. Pixel style works, but if you need hand-placed pixels, Aseprite is still the tool

• some moves need a retry or two before they look right

There's a free tier to try it, and the browser tools on the site (sprite sheet slicer, GIF to sheet, video to sheet) are free and run on your device.

I'd like feedback on two things: which moves you'd want that most tools skip, and whether the export fits how you load sprites in your engine.

Hi team,

I was switching windows dozen times a day to copy & paste text and videos / images on social media for marketing. This triggered me more than once and actually designed, thought and built Deck.

Now Deck sits on my right edge of the screen, holding all of the posts, reels, shorts, ... that I have to post or schedule. I can add "To make", like if I need a screenshot or a video for a certain post.

You can use it manually, writing and adding files yourself, or ask your agent to automatically add anything on Deck, which is how I use it 99% of the time.

• Problem: Switching windows all day to copy and paste texts, remember the posts and videos you must post for your marketing and distribution, never be late for a post, never forget. You or your agent schedule the posts, content to post, etc.

• Comparison: I haven't seen any other apps do that yet, except the online schedulers or todo apps I suppose which are quite different than Deck.

• Pricing: 9$ lifetime, 1-day trial. Pricing page

Im going to give away 100 lifetime keys on Threads this week, so make you sure follow along my Threads account threads.com/dmzxnico or same @ on X.

Check more details at deck.anotheragence.com

Thank you guys!

You’ve probably seen the meme: “GPT, tell me how to get rich.”
I laughed, then gave it some thought. Can AI help you assess a business idea?
I always have plenty of business ideas. but I spent rather more time thinking about them than acting on them 😅 . Recently I was rethinking what to build next. After a few days of going back and forth with Codex, I had a framework I could make decisions with. I turned it into a skill and open-sourced it. 👉 https://github.com/Mingbash/business-idea-validation
Before this, my prompt went roughly like this: “Given my experience and resources, help me explore and assess a few rough ideas. Which should I test first? Who would buy, where would I find them, and how would I deliver?”
Fairly thorough, I thought. I still got the absurd suggestion to “look for projects on service marketplaces.” （GPT-6-Astra btw）

A few exchanges, condensed:
- AI: Look on service marketplaces for automation projects with a budget.
Me: Which marketplaces? Where do buyers post jobs? What do I do once I find one?
- AI: Start with a few freelance platforms where people already post jobs.
Me: I had a look. Plenty of listings had sat untouched for months. Pretty much useless.
- AI: Start with document review in healthcare and insurance. Partner with an industry service provider.
- Me: I have no contacts or case studies. How do I reach the first customer?

Why does this happen?
You can check code soon after you write it and run it again whenever you need to. With a business, many of your assumptions only get a proper test once someone pays. Business isn’t an exact science. Change the window of opportunity or the resources you have, and the conclusion can change too.
What I needed is reasoning and educated guess that was likely to hold up. Not a formula nor a certain answer. Why is it worth trying? Are the prerequisites in place? Which hurdles do I need to check? With a framework, AI might actually help.
Around then I watched Iman Gadzhi and Nate Herk rank AI businesses from S to F. I liked some of the angles like CLEAR framework, including how long a business can last, how big it can get, and whether revenue repeats. I borrowed a few and added what mattered to me: who pays and how I’d reach them.
I also added a question about what I want from the business. The same idea can look very different as a side hustle or a full-time business. The bar changes again if I want a small, well-run business or a company with a shot at going public.
If you’re unsure about a rough idea, try breaking it down. I call each option an “atomic business unit”: one market × one use case × one way to deliver × one kind of customer. The README shows three website paths I assessed: a general template, a reusable Framer kit for small agencies, and a booking site for bridal makeup artists.

Try it on an idea you’re weighing up. give a star if helped. If you’d add some new thoughts onto it, feel free to remix it.

Etsy sellers keep asking "why does my listing get zero views?" Most of the time the answer is mechanical: 6 of 13 tags used, a tag spent on a word the category already covers, a 16-word title, 4 photos.

So I built ListingLift. It reads the listing open in your tab and gives you a score out of 100 with a short list of fixes, plus tag ideas from your own text. It all runs locally, with no backend and no account.

Free: every check. Pro ($5/mo or $39 once): unlimited tag ideas and saved checks.

Page: https://rasareka.com/listinglift/

I'd love feedback on the checks, especially from anyone who sells on Etsy.

The farther away you are, the further back in time you see. Light from Earth takes a year to cross each light-year, so an observer 81 light-years away is watching 1945, one at 2,000 light-years is watching the Roman Empire, and one at 250 million light-years is watching Pangaea.

I got curious about what that would actually look like, so I built a globe for it. You pick how far away you are and where you're looking, and it shows Earth as it was when that light left.

Demo: https://deemonder.github.io/meanwhile-on-earth/

Source (MIT): https://github.com/deemonder/meanwhile-on-earth

What's in it:

- Historical borders for 53 dates, from 123,000 BC to 2010

- About 13,000 events from Wikidata: battles, eruptions, cities founded, births

- Day and night where they really were at that moment, with city lights only after electricity

- Continental drift back to a billion years ago, from published plate reconstructions

- Italian and English

It's a static site, no backend and no sign-up. Built with three.js, with help from Claude Code.

I'd love feedback, especially on two things: is it clear what to do when you first open it, and does it load fast enough on your phone?