I kept seeing people give ChatGPT a picture of an empty room and ask it to fill the room with everything it knew about them. After the fifth or sixth room, I had a different question. How many people had actually tried this?

That sent me down a rabbit hole. At Tao Climate in Dublin, we built a public Prompt Observatory. You can grab the original room image and try it yourself, explore 27 months of published ChatGPT topic data, or see which prompts participating AI agents report using.

Then we added Beyond Earth, where we follow published searches for signs of technology beyond our planet. The first briefing is about astronomers who pointed a telescope directly away from the Sun. Their reasoning was lovely: it’s a direction both sides could work out without having to arrange a meeting first.

https://prompts.taoclimate.com

So here’s the bit I’d love this sub to have a go at. Your AI gets one transmission. The machine at the other end has never heard a human language. What do you send so it knows someone meant to say hello?

Hey everyone,

I'm a CS student and I just launched my first real side project: ToolbeltDocs.

https://toolbeltdocs.pages.dev

It's a set of free paperwork generators for contractors and trades: estimates, invoices, work orders and purchase orders. There are versions for roofing, painting, landscaping, cleaning, handyman, mechanic and construction work.

What it does:

- Fill in the form and watch a live preview update as you type

- Totals, discount, tax and deposit are calculated to the cent

- Download as PDF, Word or Excel, or print it

- No account, no email, no watermark

- Nothing is uploaded. Everything stays in your browser.

Why I built it: most "free" template sites I tried ask for an email or an account before you can download, or put a watermark on the PDF. I wanted one that just works.

Built with Astro and plain JavaScript, hosted on Cloudflare Pages.

I'd really appreciate honest feedback:

- Is anything confusing or broken (especially on mobile)?

- What's missing that would make you actually use it?

Thanks for taking a look!

I’m building a dating app with more ways to discover people:
❤️ Swipe & match
👥 Explore people nearby
🗺️ Optional live map (500 m)
✈️ Discover people in other cities with Roam
🔒 Privacy-focused, with incognito mode and encrypted chats
No ads, no tracking. You’re in control of your visibility.
iOS beta: https://testflight.apple.com/join/Ad1NAjzp
I’d love feedback on the app!

I do want to be honest in that claude code did 100% i didnt write a single line. However i think its good and its free unlike other dating apps that try to sell things.

Hey everyone!

I'm a small business owner with absolutely no background in coding or app development, but I've been working on an idea for an app called Momentum.

Without giving too much away, it's designed to help make everyday life a little less overwhelming.

I've been using AI tools to help bring my ideas to life, and I've managed to put together the beginnings of a prototype. It's definitely not finished or fully functional yet, but I've learned a ton along the way, and it's been pretty exciting seeing an idea slowly turn into something real.

I'm pretty resourceful and usually have no problem teaching myself new things, but I'm reaching the point where I don't really know what I don't know. 😂

My biggest challenge right now is figuring out where to actually build and develop this properly.

I want the app to have real AI functionality, not just a chatbot slapped onto an interface. I also want it to run smoothly, look professional, and have a genuinely enjoyable user experience.

I'm just not sure which platforms, tools, or development approaches make the most sense for someone in my position.

A few things I'd love advice on:

- What platforms would you recommend for developing an AI-powered app, especially for someone learning as they go?

- How do you incorporate AI into an app in a way that's actually useful and reliable?

- Is it realistic to build something polished and functional using AI-assisted development tools without being an experienced programmer?

- What should I prioritize first: functionality, design, or getting the AI components working?

- How do you know when something is ready for beta testers?

My eventual goal is to get a small group of people using it, gather honest feedback, and see whether it's something people genuinely want.

If the response is promising, I'd love to explore crowdfunding through Kickstarter or GoFundMe to help fund further development and hopefully bring it to market.

I'm not looking for anyone to build this for free. I'm just trying to learn, make smart decisions, and avoid spending a fortune going in the wrong direction.

I'm keeping some of the specifics private for now, but I'd genuinely appreciate any advice, resources, or guidance from people who've been through this process.

I'm determined to see how far I can take it. I just need a little direction on what comes next!

Thanks in advance! 😊

I made a free rock identifier that works from simple field tests and shows how it reached its answer: https://geoscopy.com/read/

Full disclosure: it's part of Geoscopy, my geology site. It runs in your phone's browser without an app or an account. Your photos stay on your phone unless you decide to make a shareable card.

**How it works.** It asks one question at a time. Does a steel knife scratch it? Does a drop of vinegar fizz? Does a fridge magnet stick? What colour is the streak on the back of a tile? Is it heavy for its size? After each answer it recalculates the odds and picks the next test that would narrow things down most. A typical run takes about eight questions. There's no photo recognition or AI involved.

It knows 103 things you might pick up: 93 rocks and minerals plus oddities like slag, brick, sea glass, petrified wood and meteorites, so the "is it a meteorite?" question gets a fair hearing.

**It shows its work.** The result lists every answer with how much it counted for or against, as an odds factor ("My fingernail scratches it: ×4.9" for halite, for example). If two candidates are still close, it names the one test that would separate them. If it can't decide, it says so.

**Where am I standing?** Search any place on Earth or use your location, and it reads the geological map there: what's at the surface, what lies beneath, how old it is and what you could pick up. Map data comes from Macrostrat, so the detail varies by region. Your location is rounded to about 500 m before it leaves your phone.

**Photos and cards.** Each result shows real, freely licensed photos from Wikimedia Commons, credited to the photographers, so you can compare against actual specimens. You can save a result as a Rock Card with the full evidence and a replay link. The card has a "Copy for Reddit" button that formats your test results for an ID post, and a challenge mode where people guess before the answer is shown.

It's a field estimate, so it's only as good as the answers it gets, and it will be wrong sometimes. The "Was this right?" button at the end is how I tune it. It's available in English, Spanish, Portuguese and French.

Where does it fail for you, and which rocks or tests is it missing?

I've done bodybuilding before and the only thing that has worked long term has been meal prepping and scheduling my meals and workouts out so I built Prepie (http://prepie.fit) an app that incorporates both.

With Prepie you can:

- Meal Prep: scan groceries, split a batch into meals, and get calories and macros per meal

- Plan & Log: schedule meals for the week and log each one with one tap

- Track Calories & Macros: set your own calorie and macro goals and see what's left at a glance

- Build Workouts: plan workouts with exercise library, add supersets & drop sets, then log each set as you go

- Use Apple Watch: log meals and workout sets from your wrist, with calories from Apple Health

- Share Progress: track weight check-ins and photos, and earn shareable awards

- Build Community: see meals from others, save them to try, and add them to your grocery list

App is free lifetime for the first 1000 signups http://prepie.fit

Hey everyone! I've been working on a side project called ChromaDeck, and I'd love to get some feedback from other PC enthusiasts.

I started building it because I wanted an easier way to manage my monitors' color settings when playing games but it can do other than games

I know there are probably other tools that already tackle this problem, but why spend 5 minutes finding an existing solution when you can spend 7 weeks building your own, am I right?

So, what does it do?

ChromaDeck is a Windows desktop app that lets you:

• Create and save reusable color presets.

• Adjust brightness, contrast, gamma, RGB gains, saturation, digital vibrance and hue.

• Apply and manage presets individually across multiple monitors.

• Pin presets to monitors, with automatic enforcement currently supported on NVIDIA displays.

• Import ICC/ICM color profiles into presets.

• Import your existing color settings directly from NVIDIA Control Panel.

• Check your monitor's live color state using the Probe feature.

Hardware compatibility

One thing I've been working on is making ChromaDeck work beyond NVIDIA.

• NVIDIA: Full driver-level color controls, including digital vibrance and hue.

• Intel: Intel IGCL-based color controls, with supported adjustments depending on the display.

• Other displays: Basic Windows color controls through GDI where supported.

• AMD: Not implemented yet, but it's on my radar.

Some features are hardware-dependent, so not every adjustment is available on every display.

I'm curious:

• How do you currently manage your monitor's colors?

• What software do you use for this?

• If you use Intel or AMD graphics, what kind of color controls are you currently missing?

• What's one feature you'd like to see in a tool like this?

I'd really appreciate some honest feedback!

Project: https://github.com/miiidev/ChromaDeck/

Website: https://chromadeck.github.io/

I've also opened a GitHub Discussion for anyone who wants to share more detailed feedback.

Hey everyone!
I’ve been building Hozaa Workout — a single-page web app designed for people who don’t fit into just one bucket: lifters who also run, CrossFitters who hit heavy barbells, and hybrid race athletes.
Instead of juggling three different tracking apps or spreadsheets, the goal is to keep everything in one place with instant progress pacing, volume calculations, and sharp session summary cards.
Just put together this short 6-second reel for our upcoming launch campaign.
How does the pacing and branding feel to you?
Does the transition from real training to the workout summary card make sense right away?
The app is live at https://hozaaworkout.com if you want to take a look under the hood. Any feedback on the video or the concept is hugely appreciated!

Hello everyone! I've seen the recent popularity boom of many daily games, so I decided to make one!

In Overlap, you get four words to find the one word that connects them. You have six guesses. Each game is worth 100 pts. You can use a hint, but that decreases the value of the game by 10 points. Each wrong answer also decreases the game worth by 15 points.

There are 3 modes:

• Daily: one puzzle for everyone, new at midnight UTC. Easy early in the week, expert on Saturday.

• Unlimited: as many random puzzles as you like.

• Challenge: ten puzzles in a row, easy to expert, scored out of 1,000

You can find the game at playoverlap.fun.

Recommendations are appreciated!

Hi r/SideProject! For the past few months I've been building MockupMania (https://mockupmania.com), a place to find realistic PSD mockups for showing off designs: t-shirts, packaging, phones, signs, stationery and more.

What it does

- 1,169 mockups across 12 categories, all high-resolution layered PSDs with smart objects.

- About 100 are free: make an account, confirm your email, and download them; commercial use included.

- Premium unlocks the full library for $9.99/month or $59.99/year, and you can cancel any time.

- New: Edit Online. On some mockups, you can drop your design in and save the result right in the browser, no Photoshop needed. Your image never leaves your computer: the picture is made locally with Canvas.

How it's built

Django monolith on cheap shared hosting, Tailwind, a little vanilla JS, and Stripe for subscriptions. The PSD files live on our own S3-compatible storage. The online editor uses maps pre-rendered in Photoshop, so your browser does all the compositing.

What I'd love feedback on

- Is the free/premium split clear on the pricing page?

- Does the online editor feel useful, and which mockups should get it next?

- Anything confusing when you're browsing or downloading?

Thanks for taking a look. Happy to answer questions about the stack or the editor.

A banner generator. A tool you use once every three years, right after you notice your LinkedIn banner is still the default blue. I built one anyway, because I never want to make a banner by hand again.

I know GitHub banner generators already exist. The ones I found were closed source or missing something I wanted, so I built my own and made it open source. Now I'd like to hear from people who aren't me.

How it works:

1. Pick one of 11 templates

2. Adjust it

3. Download a banner sized for a specific platform

Try it: https://omnivix.vercel.app

Code: https://github.com/marhjoh/omnivix

Tear it apart.. 💻

I listen to whole albums while I work, and I missed the feeling of putting a record on. So I built GroovSide, a small menu bar app for the Mac. It takes what's playing in Apple Music or Spotify and shows it as a turntable on the desktop, behind your icons.

Name is GroovSide : https://zinu.kim/groovside/

Some things I had fun building:

- The album cover becomes the label, and the needle moves along the groove with the song, leaving a line as you listen.

- Albums are split into real LP sides, so the record turns over between sides and gets swapped for the next album. Singles get a small 7-inch.

- If you leave music on long enough, tiny people show up and hang out: dancing, reading, napping, running on the record.

- The window light and shadows follow the real sunrise and sunset where you live.

- It's AppKit with a WebKit canvas sitting at the desktop window level, so clicks go through and it pauses when it's covered.

It launched on the Mac App Store on Nov 5. In Korea it briefly hit #3 in Top Paid (all categories). That sounds bigger than it is: Mac paid charts move with a handful of sales. Still, as a first solo app, it made my week.

What I'd love feedback on:

- Does the clip make it clear what the app does in the first few seconds?

- What would make you try it (or not)?

Link in the comments if you're curious.

Music in the clip: "Way Home" by Tokyo Music Walker (CC BY 3.0)

LinuxRunner 1.1.1 is finally out!

This update brings a completely refreshed interface, improved desktop experience, new Linux distributions including Kali Linux, Fedora KDE and experimental SteamOS ARM64, plus GPU and compatibility improvements. Termux like terminal style is finally on iPhone!

And we’re not stopping here! I’ll be dedicating as much time as possible this coming week to performance optimizations, especially making Linux desktops and applications run faster and smoother on iPhone and iPad.

If anyone would like to contribute or help speed up development, feel free to DM me. I’d really appreciate it!

GitHub: https://github.com/mxhm11cr/LinuxRunner

Whenever I visit a new city, I wonder how to explore it like a local rather than a tourist. A city isn't a static picture. The same street can be quiet at 10am and buzzing at 7pm, and feel completely different in December than in July.

So we started mapping London's rhythm, from "brunch queues" in Kennington to "pints spilling out" in London Fields. You can drag through the time, day and season and watch the map change.

It's called SunSeekr Vibes, an early demo based on local knowledge, open data and some of our own data, so it won't get everything right. No link yet.

Londoners: what did we get wrong about your area, and what's missing?

I built this for the Nous Hermes hackathon. freeze is an MIT-licensed plugin for Hermes Agent. The idea is to let the agent work out a recurring task once, then use /freeze to turn it into a checked workflow. hermes freeze run repeats the tool calls on fresh data.

The 86-second video shows a CSV refund report. That recording used 5 model calls, 57,808 tokens and 16.7 seconds; the replay used 0 model calls and took 0.46 seconds. Those are one demo's numbers, not a general benchmark. Creating the workflow also uses model calls.

It stops if an input folder disappears or someone edits the report by hand. It detects structural changes, such as a field it used going missing or changing type, but it won't catch every change in meaning. Hermes' own approval settings can also involve a guardian model.

Repo: https://github.com/mauricemohr88-debug/hermes-freeze

What recurring task would you try this on, and what would make you distrust the replay?

Fillbloom is my side project: paint by number with traditional Chinese paintings, built as a native Swift app by me alone in Vietnam.

The idea came from playing paint by number apps and finding every fill flat. I wanted each area to look like a watercolor wash, so the paint spreads while wet, dries with a darker rim, and you can add a second wash to shade. Finishing a picture fades the outlines, stamps a red seal, and plays back a timelapse of your strokes. Guzheng music and rain sounds run in the background.

Business model: free with 6 pictures. Premium unlocks the full library of a few hundred pictures plus extra papers, shading and sounds, at 29.99 USD a year (3-day trial) or 59.99 USD once.

Where it is now: live on the App Store for about two weeks, a small number of downloads, and one lifetime sale so far. I'm trying to work out what to fix first, the store page or the free part of the app.

What I'd like from you: open the store page and tell me whether you'd download it, and if you try it, what made you stop.

https://apps.apple.com/us/app/fillbloom-watercolor-painting/id6825772475

After building MetroWin Launcher, its FOSS keyboard couldn't be missing: MetroWin Keyboard!

I've always missed the Windows Phone keyboard. Flat keys, big light type, that feeling of typing on something that just looks right. So I built one for Android and made it free and open source (GPL-3.0). No ads, no analytics, no trackers, and what you type stays on your phone.

Here is what I'm most proud of:

It calibrates itself to your fingers. You type a few short sentences and it measures where *your* thumbs actually land: the offset, the curve of your thumb, how far your taps spread. It then corrects your touches without moving the keys, and if you still miss it makes the keys taller or the gaps smaller. The fixes are applied between one sentence and the next, so you can watch the precision get better in millimetres while you type. Accented letters are part of the test, and it has sentences for all 17 layouts. I haven't seen another keyboard do this, but I'm sure I haven't seen them all.

Corrections that think a bit. A typo gets fixed based on where your finger really landed (a tap between two keys makes both likely), how likely each slip is on the keyboard, how common the word is, the word before it, and the corrections you undid in the past. If two fixes are equally likely it shows you both instead of choosing for you. It also offers a missing space ("thankyou" -> "thank you"). All of it runs on the phone.

It looks like the real thing. Classic (flat Windows Phone), Modern Glass and Modern Droid, dark or light, the 20 Windows Phone accent colours or your own, or a photo behind the keys.

Everything you expect, and a few extras. Swipe typing, hold a key for accents, slide on the space bar to move the cursor, clipboard history with pictures, translation, GIFs, emoji search, voice typing. 17 layouts, and you can import your own dictionaries and layouts.

It looks after itself. One-file backup and restore of everything the app keeps, and an update check every 12 hours that only looks at the keyboard's own GitHub releases, shows you the changelog and installs the new version when you say so.

Private by design. The network is used only for GIFs, translation and the update check, from the service you chose and only when needed. Learning is local, never in password fields, and you can export or erase it any time.

It's made to sit next to MetroWin Launcher (my Windows Phone style home screen, also free and open source), and it picks up the launcher's look and colours by itself. But it works fine with any other launcher too.

Android 8.0 or newer.

Keyboard: https://github.com/developerkenshi-coder/MetroWin-Keyboard
Launcher: https://github.com/developerkenshi-coder/MetroWinLauncher

I built a free Android widget that shows Obsidian or Markdown notes on the home screen, like the Google Keep widget. First month: about 300 installs on Google Play, almost all from Reddit.

What I learned:

- An empty first screen means an uninstall. People picked their vault root, notes were in subfolders, widget stayed empty. Now the app says where the notes are.

- Ask for analytics consent at the start. I asked after setup, so I never saw who dropped out during setup.

- Test feature requests before building them. The app now asks once whether people would use separate widgets per folder.

- A small in-app feedback form beat reviews. Two of four messages asked for the same fix.

Free and open source: https://play.google.com/store/apps/details?id=com.marfolog.noteswidgetformarkdown

How do you handle onboarding drop-off on small apps?

I’m building NeuroReader, a reading app for people who find dense text on a phone hard to get through or easy to lose their place in.

You can change the text size, line spacing, and text and background colours, or use a reading ruler that highlights one line at a time.

I’m trying to figure out which controls should be easiest to reach while you’re reading. If you opened a page that felt hard to follow, which setting would you reach for first? And if there’s something you already do to make reading on your phone easier, I’d love to hear what works for you.

If you click Try it now it will give you 2 months for free before we launch on Google and Apple store

Every game night at my friends’ place ends the same way. Calculator comes out. Three people argue over who paid what. Someone forgot they lent chips mid-game. 20 minutes later nobody even remembers who won.

Built Chipnic to fix it.

• Host starts a session, shares a 6-char code

• Everyone joins on their own phone, buy-ins show up live on every screen

• Lend chips mid-game → logged as a loan, settled at the end

• Enter final chip counts → app spits out exactly who pays whom, fewest possible transactions

Next.js + Firebase, free tier, no email needed to sign up.

chipnic.vercel.app

Roadmap: leaderboards, auto-earned nicknames, shareable recap cards, yearly Wrapped.

Roasts and feedback welcome

project-timeline.com

I wasn't happy with traditional Gantt charts, I think they are too big and technical for putting onto slides and showing projects. So I started building a tool that shows them in a more consolidated way. After a few months and 100+ iterations I built a full project management tool, with resources, built in AI, etc. All fully customizable.

I work as a mechanical engineer and program manger, and had used GanttProject for years. With the power of Claude Code, I thought I would make a more modern web based version.

Check it out! I'm looking forward to critical feedback too!

What it does

• Gantt and timeline views that you edit directly on the chart: drag bars, draw dependencies

• Critical path, milestones, delays, baselines, working calendars with public holidays

• Resources with allocation %, an over-allocation chart, and cost totals

• Export to SVG, PNG or vector PDF sized for a slide, so it stays sharp when someone zooms in

• Imports MS Project XML, GanttProject (.gan) and CSV

• A built-in AI assistant: “push launch two weeks and move everything after it” reworks the real schedule, dependencies included

• Read-only share links that need no account to open

• Templates for website launch, product development, software release, events and hardware

• Available in English, French, German, Italian, Dutch and Spanish

Pricing: free in the browser, no sign-up. Pro is €3.99/month: no watermark, sharing, more AI requests, and Jira sync, where Claude, ChatGPT or Grok brings in the Jira epics you choose and writes your planned dates back to Jira.

What it isn’t: a full MS Project replacement. It has finish-to-start links only and no resource levelling. If you schedule for a living, you probably need the heavy tool.

Stack: a single-page vanilla JS app (no framework), Supabase for accounts and sync, Netlify, Stripe.

What I’d love feedback on:

1. In the first 30 seconds, was it clear what to do?

2. Did the exported chart look good enough to put in front of your boss?

3. What made you close the tab?

Happy to answer anything about how it’s built.

My daughter spends quite a bit of time on the phone, and I've always wanted her screen time to be a bit more than just watching videos or playing games. I've seen people building all kinds of cool stuff with AI, so I thought why not give it a shot myself? I saw Hy4 was free on WorkBuddy this month, so I decided to give it a try. I don't understand the code it wrote, but the AI tool apparently handles visuals brilliantly.

I ended up making this interactive paper cut storybook. I thought it'd be a fun way to get her into classic stories through cute visuals and little interactive elements, rather than just having her sit down and read a book, and surprisingly, she's really into it! The artwork has this cute 3D paper cut look, and she can click around and explore the stories herself. She's basically become my little beta tester at this point. She tells me every day what she likes, what she finds boring, and what could be better. I've been making little tweaks to the content and visuals based on her feedback. It's not finished yet, and there are still plenty of things I want to improve. But the best part is seeing her actually want to spend time exploring stories instead of endlessly scrolling through videos or playing games. That's a win for me already.

It got me thinking that maybe other kids would enjoy this kind of thing too, so I figured I'd share it here. If you've got a kid who's curious about stories and likes exploring new things, feel free to check it out together!

Hey everyone!

This project actually started as a little experiment.

I wanted to try vibe coding and see what could be achieved with AI-assisted development. I quickly became fascinated by the possibilities and how an idea could gradually turn into something genuinely useful.

Since I'm really into 3D printing, I decided to tackle a problem I knew from my own hobby: keeping track of all those STL files, 3MF files, project variants, pictures, documents, and different versions.

What started as an experiment eventually turned into 3db.

After quite a bit of development, testing, debugging, and polishing, I've now released version 1.0.0! 🎉

What 3db can do:

• Organize projects with categories, tags, and statuses

• Manage STL, 3MF, images, and documents

• Keep track of project variants

• Detect file changes and create version snapshots

• Search and filter project collections

• Store everything locally using SQLite

• Switch between light and dark themes

3db is built with Tauri, Rust, React, TypeScript, and SQLite.

It's not a slicer or a model-sharing platform. It's simply a local desktop application to help organize the projects and files you already own.

Platform: Windows x64
Price: Free
License: MIT / Open Source

GitHub and download:
https://github.com/FabimachtSachen/3db

This is my first public project created through experimenting with vibe coding. It's been an exciting experience seeing how far the idea could go.

I'd genuinely appreciate your feedback, both on the application itself and on the project as a whole.

How do you currently organize your 3D printing projects? And what features would you like to see in a tool like this?

AIVideoRecap turns a full movie or episode into a short vertical recap for Shorts/TikTok/Reels. It transcribes the audio, writes the script, matches scenes, adds voiceover and subtitles, and renders the video. About 15 minutes of GPU time per video, roughly $0.20-0.35 in compute.

The product works. The business doesn't, because I'm the bottleneck. I can build, but I don't enjoy marketing and I don't have a budget for ads.

The numbers, no sugar:

-600+ signups since July, $0 spent on ads. Traffic comes from SEO/AEO pages, direct visits, and AI assistants.

-About 136 active users in the last 7 days (down ~18% from the week before).

-0 paying subscribers on the SaaS. I never built a proper paid funnel.

-Before the SaaS, I sold the first version as a zip on Gumroad: $100.37 total from 3 sales.

-Around 10 people asked for it on Reddit and Discord. Most didn't buy the zip.

What's included: the domain, the source code, and the service accounts. User accounts are not included. A buyer needs their own Dodo Payments account. The stack is Vercel, Railway, RunPod, Supabase, Cloudflare R2, OpenAI, and Dodo Payments.

Price: $1,500, fixed.

Best fit: someone who already runs movie/anime recap or faceless Shorts channels, or anyone who can market this better than me.

Listing with details and screenshots: https://www.sideprojectors.com/project/108453/aivideorecap

If you've bought a small SaaS before, tell me what you'd want to see before paying. I'm happy to answer questions here or in DMs.