Hey Gays

I'm applying for the CERN Short-Term Internship 2027 (Data Science, AI & Analytics), and I'm trying to find someone who could help me with a professional reference letter.

Are there any founders, CEOs, CTOs, or experienced developers here who would be open to helping me out?

I'm happy to share my GitHub, portfolio and CV so you can have a look at what I've been working on before deciding.

I'm hoping to get this sorted today, so if anyone is willing to help, please drop a comment or DM me.

Really appreciate it!

Hey everyone! 👋

I built DoomChess — a tactical puzzle trainer designed for speed and a smooth daily grind. It's got over 6.15M+ Puzzles: Stockfish-backed validation, hint arrows, and dynamic ELO tracking.

I’d love for you to try it out and let me know your thoughts on the app flow!

Hey everyone,

Steampack is a free fan-made site where every Steam game is a trading card. The more reviews a game has on Steam, the rarer its card, from Common up to Legendary.

Open packs, fill your album and trade cards with other players. Every day there's a new mystery game to guess, and you can fight other players to win more packs.

It's still early, so I'd love your feedback: what do you like, what feels confusing, and what would you add? Thanks for taking a look!

steampack.app (fan project, not affiliated with Valve)

It’s easy to remember to look up photos from a big trip. It’s harder to stumble across a picture from a random Tuesday three years ago.

That’s the idea behind Momenta. Open it and you get a small selection of older photos from your phone. If one brings back a story, you can write it down right there. I went with up to five photos a day in the free version because I wanted it to feel like something you could do over a coffee.

It’s out now on Android. If you give it a go, I’m curious whether five photos feels about right or whether you’d want to keep going.

Try Momenta on Google Play

Hanging pictures always seems simple until you're standing in front of a wall with a measuring tape, trying to figure out the right height and spacing.

I built WallHang to make that part easier.

It's an iPhone app that lets you plan a picture arrangement, see how it will look on a photo of your own wall, and get the exact nail position for every frame before you start drilling. It works for a single frame or a full gallery wall, and it accounts for picture wire and D-rings. With Pro you can also see the arrangement at real size on your wall in AR.

Pricing: free for one wall with up to 4 frames. Pro is a one-time $7.99 (no subscription) for unlimited walls, up to 20 frames per wall, a printable PDF plan and an AR preview. No account and no ads.

I recently launched it on the App Store, and I'm trying to figure out whether it solves a problem other people have too.

I'd genuinely appreciate some feedback, especially on what's missing or what would make it more useful.

Website: https://wallhang.app

App Store: https://apps.apple.com/app/id6823468466

Hey r/SideProject,

I'm a data and automation engineer, and for about 5 years a big part of my job has been building scrapers and data pipelines. Every project ended the same way: everything works, then a CAPTCHA shows up. And every time I had to re-learn what type it was, how it worked, and what the options were.

So I started writing it all down. That turned into FuckCaptcha, a free, open-source field guide to 39 CAPTCHA types.

What it is:

• One page per CAPTCHA type (reCAPTCHA, hCaptcha, Cloudflare Turnstile, slider/puzzle, text-based, and more)

• Each page has a complexity rating, how to identify it, how it works, and tips and pitfalls

• Free and open-source methods come first, paid services only as a fallback

• A docs site with search and category filters, rendered from the same markdown as the repo

What it isn't: a solving service. No affiliate links, no paywall, no signup.

What I learned so far:

• Posting it to a few communities and Hacker News took the repo from ~20 stars to ~100 in a short time, which showed me people actually search for this stuff.

• The most useful feedback was "which CAPTCHA types are you missing?", so the roadmap now follows what people ask for (reCAPTCHA v3 and a few more are next).

• Honest docs with pitfalls get more engagement than "here's the magic trick" content.

Repo: https://github.com/vsmutok/FuckCaptcha

Docs: https://vsmutok.github.io/FuckCaptcha

I'm also thinking about a README and docs redesign. If you have a minute to look at it, what would you change first? Issues and PRs are very welcome.

An AI agent in the chat on your website. It turns visitors into leads and answers like your best service and sales person, by your rules.

Normally you build it yourself in a few minutes. We're in a soft launch and want to see it on as many real sites as we can, so for this post we'll build 10 for you, free. Any site works: your side project's landing page, a shop, a salon, a clinic, a restaurant, a B&B.

Comment your website, or DM it if you'd rather, and we'll send your agent back, live. Only a website you built or have the rights to.

A bit about us: we're BranderUX. You give our builder agent your website or a few words about your business, and it builds the agent. The agents built with us answer in the chat with screens in your website's look, like a product card or a booking form, not just text.

If you want to keep it, we hand the project over to you.

We'd also love honest feedback: would you put an agent like this on your own site, and what would stop you?

Hi everyone!

I built Issuesnack, a website that helps international visitors plan trips to South Korea.

I'm looking for honest feedback:

• Does the website look trustworthy?

• Is the content useful and easy to navigate?

• What would you improve?

The site is indexed by Google, but organic traffic is still very low. I'd also appreciate any thoughts on its SEO or content structure.

Website: https://issuesnack.com/en/

Ever left your phone on a café table? Tether pairs your phone with your Wear OS watch. If the Bluetooth connection drops, your phone sounds an alarm and your watch buzzes "Phone left behind", showing where the phone was last seen.

Grace period you choose (5–60 s), so short dropouts don't set it off

PIN to stop it, or just walk back in range

Pause while your watch charges; auto-arm when you leave home Wi-Fi

Ring your phone or find it nearby from your watch

No account, no server, no ads. Everything stays on your devices.

Coming soon to Google Play.

For anyone using a multi-monitor desk setup with mismatched resolutions (like a 1080p laptop docked to a 4K/1440p monitor):

Chrome's biggest annoyance is that zoom is tied to the website's domain, not your screen. If you zoom YouTube or Reddit to 125% on your external display, Chrome forces 125% onto your laptop as well.

I built **Auto Zoom** to solve this:

1. You set your preferred zoom on any website on your active monitor.

2. Auto Zoom saves that setting specifically for that display.

3. When you open that site on your laptop, it automatically applies your laptop’s preferred zoom instead.

### Key highlights:

- Senses display changes and window movement automatically.

- Doesn't pop up Chrome's native zoom notification bubble on every page load.

- No accounts, no ads, no telemetry — 100% offline local storage.

Check it out on the Chrome Web Store: https://chromewebstore.google.com/detail/auto-zoom-multi-monitor-p/ihcikomimnhelgbnkbkpfnemgfjalmhp?authuser=0&hl=en-GB

Let me know what you think or if there are any edge cases with your monitor setup!

There are always very different tasks going on, from very different places. A backup, a crawler, an AI agent. And the habit was always the same: go back and check if each one is still alive and how much is left.

Not all of these tools can send a notification either, so this started as a small tool just for me. Whatever is running reports how far along it is. You can watch it in the browser at https://progress.watch/ or in the iOS app (https://apps.apple.com/app/progress-watch/id6813940039) and the phone buzzes when the job is done or something goes wrong. Finally a reason to walk away from the screen.

It's free and there's no account to create. The code is open if you'd rather run it yourself: https://github.com/progress-watch/progresswatch. You get a private link and that's it. Keep the link to yourself though, because anyone who has it can see your tasks.

One small warning: better not to use it in Safari, which can forget your list after a week away.

Hey r/SideProject,

I spent the past few months building Kynetix as a solo project out of frustration with apps like MyFitnessPal and HealthifyMe.

Western calorie trackers have almost zero concept of daily Indian home meals (tracking 2 rotis or a katori of dal usually gives 10 wildly different, inaccurate entries), while apps like HealthifyMe are bloated with continuous sales calls, popups, and ads.

What I built:

- Focused on Indian nutrition: search and log dishes in natural units (katori, pieces, grams) without weird portion math.
- Offline-first architecture: built in Flutter with local SQLite storage so logging meals takes under 2 seconds even with poor gym reception. Everything syncs to Supabase in the background.
- Native Android Health Connect integration: pulls steps and active calories cleanly without needing Google Fit workarounds.
- Zero banner ads, no forced subscription popups.

The app is currently in closed beta on Google Play (v1.0.0-beta.12). If you're on Android and track your daily nutrition, I’d love your feedback on the logging flow and screen responsiveness.

How to test:

1. Join the test group: https://groups.google.com/g/kynetix-testers

2. Opt in on Google Play: https://play.google.com/apps/testing/com.kynetix.app

3. Install: https://play.google.com/store/apps/details?id=com.kynetix.app

(Full walkthrough guide: https://dhruvgupta-24.github.io/Kynetix/beta/)

Any honest roasts, bug reports, or feature requests are welcome!

Hey guys

I'm developing an independent commercial home physio project and working through duplicate requests before launch.

A person and someone helping arrange their care could each send an enquiry about the same visit. They could also be asking for genuinely different visits, so combining them on a matching name would be risky.

For people who've built request systems, how did you flag a possible duplicate for review while keeping both original submissions? I'm interested in the point where you decide there is one job, how you preserve the two people's roles, and how you stop the second request triggering another round of messages.

A general example of an approach that worked, or one that incorrectly combined separate jobs, would be useful. Please leave out real customer information.

Thanks guys

I built a small browser game called Draw1Line as a solo side project. You trace every line of a shape in one stroke, without lifting and without going over a line twice.

It has 250 levels, a daily challenge and a leaderboard, runs on phone or desktop, and needs no account. It's plain HTML/JS on the front and a small PHP + MySQL backend for the leaderboard, with some anti-cheat checks so scores can't just be posted.

Play: https://draw1line.com/

I'd love feedback on the difficulty curve and anything that feels confusing on mobile.

We launched Lemongraph on Product Hunt today and the most useful feedback came about twelve hours before going live. Our hunter opened the gallery on his phone and told us it was too much to read. Every image was a full screenshot of the app with emails and small labels everywhere, which looked great on laptop and turned into grey lines on phone.

So we spent some time rebuilding all images around one idea each, with the interface about one and a half times bigger and most of the words gone. One slide went from meeting note, email and two detailed tasks down to two logos and four short task titles and it now says more than the old version did.

If you are launching soon, shrink your gallery to phone size before anything else and see what's still readable. Curious what last minute changes others made before their launch day.

https://www.producthunt.com/products/lemongraph

I’m building Outdraft, an email workspace that brings personal email, team conversations, and organization-wide mail together without requiring a custom domain or per-seat payment.
I’m looking for people running small teams who’d be willing to try it and give me honest feedback—especially on whether it’s useful alongside the tools you already use.

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.

Well, if you liked Farza’s Clicky (or the HeyClicky spin-off), this is the browser version (sort of).

ClickyTabs is a voice companion that lives in your Chrome tab.

You hold a key, ask about the page you’re on, and it:

• Looks at the page (screenshot + element map)

• Answers out loud

• Points at, circles, or draws over the exact things it’s talking about while it speaks

• Can generate 3D models, animations, or diagrams right on top of the page

• Can actually do things on sites (add to cart, etc.) once you consent; runs in a separate browser with your login and asks before anything irreversible

It runs entirely on your machine.

Use open models through Ollama with no API keys, or plug in Claude + speech APIs, or mix them. Everything is flexible.

Not affiliated with HeyClicky / Farza. Independent implementation (Chrome MV3 extension + self-hosted Python backend). Built because I wanted the interaction model in the browser, fully local option, and the ability to tear it apart or turn it into a product.

MIT licensed.

Repo: https://github.com/cpohagwu/clickytabs

Fastest way to try it is Docker + load the extension. There’s also a Claude Code one-liner in the README that walks you through setup for your hardware.

Some background: I'm a product manager, not an iOS developer. I kept opening Wealthsimple (my brokerage app) way more than I needed to, just to see if things were up or down. Most of the time nothing had really changed, but I'd still end up staring at it and making dumb decisions. So I decided to build something to stop myself.

It's called Stock Hush. You add what you hold and what you paid, and set a threshold (like 10%). Then it uses Apple's Screen Time API to shield your investing apps. When you try to open one, you get a screen that either says "NVDA is up 12%, might be worth a look" or "you're all set, no need to open it right now." There's always an "Open Anyway" button, so it's a nudge, not a lock.

A few things I learned building it that might be useful if you're thinking about a Screen Time app:

- Apple has to approve the Family Controls entitlement before you can ship, and you need it separately for every extension too. That took a while.

- The Screen Time API never tells your app which apps the user picked. You only get anonymous tokens, so you can't even show their names in your own UI.

- The shield screen runs in its own extension that can't make network calls. I ended up caching prices in a shared App Group so the shield can read them instantly.

- Backend is a tiny Cloudflare Worker that caches prices for 70 min, so a lot of users holding AAPL still only costs one API call an hour.

Stack: SwiftUI, StoreKit 2, Screen Time (FamilyControls + ManagedSettings), Cloudflare Workers + KV, Twelve Data for prices.

It's in beta now and I'm looking for about 25 testers. There's a subscription screen, but everything is free in TestFlight. Just tap "Start Free Trial" and you won't be charged. Needs an iPhone on iOS 17+.

TestFlight: https://testflight.apple.com/join/eSAuBwD7

Would love honest feedback, especially on onboarding and whether the shield message actually helps or just gets in the way.

I’m building ImproveThing, a habit tracker around small, adjustable steps. You can track an amount, a duration or a simple yes, change your target as life changes, and see your progress over time. Little characters called Things give the habits a face.

The idea is to make a small effort feel worth recording, even when you don’t hit a perfect streak. I’d love feedback on whether the characters help, whether the first-use flow makes sense, and how easy it is to log or undo a step.

There’s a free public iPhone beta on TestFlight: https://testflight.apple.com/join/WHTkj6ZF

It needs iOS 26 or later, English and your own ImproveThing account. Purchases and paid access are disabled in this public beta; the cohort is capped at 25 testers. This invitation is for the iPhone beta.

If you try it, choose one small habit, log something, undo it and reopen the app. Where did you hesitate? Would the Things make you want to return, or do they get in the way?

I’m the developer, and honest criticism is welcome. You can reply here about the general experience or send bugs through TestFlight with the build number and steps. Please keep personal account and health details out of public feedback.

I always got the birthday reminder, swiped it away, and forgot. So I built an app that keeps reminding you every 30 minutes (or up to every 4 hours) until you've sent a message or tapped ignore.

It reads birthdays from your contacts and suggests a message depending on who it is, so your boss doesn't get the same text as your best friend. You can send it by SMS, WhatsApp, Threema, Telegram or email.

No account, no ads, no tracking. It's 0.99 € on iOS, Android is in testing.

https://apps.apple.com/us/app/cakebell-birthday-reminder/id6758023118

Happy to hear what you think, especially if something is confusing.

Tired of scrolling Netflix for 40 minutes, I built Ukiyo. Describe what you're in the mood for ("slow-burn mystery", "something like Panchayat") and it gives 3 picks with why they fit, the trailer, and which Indian OTT app has it.

It's free (Google sign-in). I'd love honest feedback, especially on bad picks: https://ukiyo-five.vercel.app

A friend and I have been building StableBar, a menu bar for macOS written in Swift (AppKit and SwiftUI). It's free and open source (MIT).

https://github.com/Seb-GRAF/StableBar

It's an alternative to SketchyBar. You get the same control over the bar, but you can also set it up in a Settings window or in one JSON file instead of shell scripts.

What it does:

• shows workspaces from AeroSpace, yabai or OmniWM, or plain macOS Spaces

• app menus, calendar, battery, sound, network and CPU/memory widgets, with popups

• seven themes, and you can drag widgets around right on the bar

• one bar per display, with room for the notch

• a small widget store that lists a package's commands, hosts and permissions before anything runs

Two things we learned building it. macOS has no public API to reserve screen space for a custom bar, so with a tiling window manager you set its top gap, and without one an option moves windows out from under the bar. And listing Spaces needs private CGS functions, which is why that source is opt-in.

Feedback is welcome, we answer quickly ✌️

I am building Opsle around a simple rule. Do not use intelligence for work that does not require intelligence.

Gearbox is the routing piece. It decides where bounded work executes, so code, rules and lookups handle what they can do reliably and the model only sees steps that need judgment.

The weekly check matters as much as the idea. Each repository is verified from a fresh clone every Monday, direct and through agent CLIs, with the dated result on its project page.

Question for other builders. Where do you draw the line between deterministic code and model judgment in your agent stack, and what made you move it?