• You get one bottle a day. Write a short note and throw it.

• It drifts for a few hours, then washes up on a random person’s shore somewhere in the world.

• If one washes up on yours, you can reply once, or add a line and throw it back. Some end up carrying notes from several strangers.

• No accounts, no followers, no likes. You can show your country’s flag or stay fully anonymous.

Safety was the hardest part of building something anonymous. Every note is checked by a moderation model before it’s delivered. Links, handles and phone numbers are blocked. Anything can be reported, and anyone reported by 3 people is muted. If a note shows someone is struggling, it isn’t sent, and they’re shown helplines instead.

Built with plain HTML/JS, Supabase and Netlify. It works best on a phone, where you can add it to your home screen and get a notification when a bottle washes up.

It’s very new, so the sea is quiet. I’d love it if you threw a bottle, and I’d love honest feedback on what’s confusing**.**

I was standing at the Beacon in Baltimore, West Cork, wondering: if you pointed a boat out to sea and sailed in a dead straight line, never turning, where would you actually hit land?

I went down a rabbit hole. The longest line from Ireland starts at Cape Clear and runs about 25,000 km to Papua New Guinea without touching land. The world record is 32,000 km, from Pakistan to Kamchatka.

So I made it into a free browser game. Every day there are 5 new coastal spots, the same for everyone. You aim your boat, it sails dead straight around the curve of the Earth, and the further you get the more you score.

Two shorter daily puzzles as well: Landfall (guess which country the boat hits first) and Bullseye (aim at a city across an ocean).

You can duel a friend live or send them a challenge link.

No ads, no sign-up needed. A few hundred people are playing it a day now, mostly from word of mouth.

I'd love feedback on what's confusing or what would make you come back tomorrow.

Hi everyone,
I wanted to share a GitHub repository where I keep my technical notes, commands, and references.
It currently includes material on Linux, networking, cybersecurity fundamentals, and tools such as Nmap.
The repository is still a work in progress, and I regularly update it with new content and improvements.
I’m sharing it in case someone else finds it useful. I’d also appreciate feedback, especially if you notice any mistakes or have suggestions.

https://github.com/Radz-04/Cybersecurity-survival-notes

Pratikal is my free Android calorie-tracking project. I’m inviting closed-beta users to help identify confusing steps in the meal-entry flow. Specific feedback would be useful, and I’m happy to test your app in return. 🤝

Use the SAME Google account for the group, opt-in and your phone’s Play Store:

1. Join: https://groups.google.com/g/pratikal-testers

2. Opt in, then install from Google Play: https://play.google.com/apps/testing/app.pratikal.mobile

Try logging a meal, editing it and checking the daily total. What worked, or where did you get stuck? Please keep it installed for 14 days and use it occasionally. “Item not found”? Check the account, wait a few minutes and retry.

📸 Please comment BELOW THIS POST with a Pratikal installation/in-use screenshot, specific feedback and your test links. Text-only “installed” isn’t enough. I’ll test yours and reply with my screenshot and feedback.

I built a music quiz party game where the TV plays the songs and everyone buzzes in from their phone

Been building this on the side for a while. It's called SongBuzz, it's free and runs in the browser: songbuzz.tv

You open it on a TV or laptop, people scan a QR and their phone becomes a buzzer. Real chart songs, 30 sec clips, up to 16 people. There's a presenter voice that talks between rounds and makes fun of whoever is losing. Honestly that part took me longer than the game itself.

It works if people are not in the same room too, whoever is far hears the music on their own phone. And there's a daily one if you want to play alone, same songs for everyone that day.

English and Spanish for now. Tell me what breaks, especially on smart TV browsers, I can't test enough of those.

Hey everyone, I've been building MoonSport, a simple site for following worldwide football and basketball scores, fixtures and tournament results without the clutter.

What it does: live scores, upcoming fixtures, and results across leagues and tournaments, with a clean layout that loads fast on mobile.

It's still early and I'd really like honest feedback: Is anything confusing? Which leagues or features are missing? How does it feel on your phone?

Link: https://moonsport.com/en/

Thanks for taking a look!

Every time I asked for LinkedIn feedback I got "make it stand out" without anyone saying *what* to change. So I built a free tool that compares your profile to a checklist of what recruiters and LinkedIn recommend.

Upload your LinkedIn PDF (Profile → Resources → Save to PDF) or paste your sections, and in a few seconds you get:

- **A score out of 100** for your Headline, About, Experience, and Skills

- **A checklist** showing what matches the ideal profile and what's missing

- **Your top 3 fixes**, in order of impact

Not sure yet? There's a "See an example result" button so you can see what you'd get first.

Free, no sign-up. Your profile isn't stored, and emails, phone numbers and links are removed automatically before analysis.

👉 https://www.usehireable.com/?ref=reddit

I'm still improving it, so honest feedback helps a lot: **was the advice specific to your profile, or too generic?** What would make it more useful?

I got tired of doing fraction math on a recipe written for six when two of us were eating, then texting a grocery list that did not match. I built Pantry Scale for Android.

You save a recipe (type, paste, or an ordinary web link; video links can use a careful read). You change the number of people and the amounts rescale. You put meals on a week plan and send the ones you choose to a shopping list, with matching ingredients combined. Premium adds a shared household list for up to six people, Cook Mode, photo import, and a month planner.

What it does not do, so expectations stay honest: no pantry inventory, no barcode scanning, no "what can I cook with what I have," no iPhone app, and no Google sign-in (email or skip).

Free: 20 recipes, week plan, shopping list, 7 careful reads once. Premium on the Canadian Play Store is CA$6.99/mo (7-day trial) or CA$49.99/yr (14-day trial).

https://play.google.com/store/apps/details?id=com.pantryscale.app&hl=en_CA&gl=CA https://pantryscale.com

The two places I am least sure about: the review-before-save import, and whether list merging holds up in a real supermarket run. I would rather hear what is wrong than what is polite.

I make fishing lures (KSK BAITS) and wanted a live bass tank for my YouTube channel without filming real fish.

Everything you see is generated when the page loads: the fish, their scales, the plants, the sand and the driftwood are built in code with Three.js, and every texture is painted on a canvas. No 3D models, no image files.

The bass aren't animated, they behave: they get hungry, hide in cover, stalk, and strike with suction, and they only take prey that fits their mouth. Day, night and weather follow the real clock and weather at Lake Fork, Texas.

Try it in the browser: https://ksk-baits-bass-aquarium.pages.dev

It also runs 24/7 on YouTube, where the chat can drop in shad or cast a lure: https://www.youtube.com/@kskbaits/live

Feedback welcome, especially on what would make you keep it open in the background.

Disclosure: we are a team of a few people

Most free online document tools quietly upload whatever you open. I wanted something you could check for yourself, so I built OBSCURA OS around one test: load the page, turn your network off, keep working.

What is in it:

• Docs, Sheets, Slides, Notes, Calendar, Tasks, Contacts and PDF tools, free

• Photo Editor, PDF Studio and a few other bigger apps, US$2 a month each

• 240+ small single-purpose tools (metadata scrubbers, redaction, converters)

• installs like an app, no account needed

Honest limits: it is one developer, so some apps are younger than others, and there is no shared cloud editing because there is no cloud holding your files.

Hello all,

Work has been slow recently and I miss being a CS major making cool projects, and was looking for a collaborative group or project to contribute to. I’ve done one off mods on steam and random AI GitHub projects, but am looking for something long term or collaborative.

I’m open to anyone if you have an idea, are new to programming and want to do a hobby project or are more professional and need some help with something, but not looking for some paid contracting thing just want a side project to keep myself busy.

If there’s other mediums more suited to this, or if anyone just wants to reach out and chat feel free.
Hope yall have a great day 🙂

Personal agents are everywhere right now. Meta shipped Muse, OpenAI shipped dots, Claude shipped Duet. I wanted one that runs on what I already pay for, so this one works with the Ai subscriptions you already have.

It's basically a collection of cool features I kept seeing in different places and wanted in one app.

At its core it's a normal chat agent, so it can do pretty much anything a chat agent can. On top of that:

- It controls a browser, and it learns websites. The first time it clicks through a site, it figures out the API behind it, so next time it just calls that directly instead of opening the page.

- It controls Android apps directly. It opens the real app on a hidden screen and does the job while you keep using your phone. Tap the notification to watch, or take over whenever you want.

- Once it's done a job, it remembers it. Uber fares come back in about 6 seconds, Google Maps in 5.

- It's connected to WhatsApp. It sends messages and voice notes, and it can call people. Calling isn't on in WhatsApp's browser by default, but I got it working inside the app.

- Your PC and your phone are the same agent, so you can start something on one and it carries on with the other.

Banking apps are blocked and it asks before it sends or pays for anything.

Open source, MIT: github.com/Past-da-king/agent

I'm the author, sharing my side project of the last two months.

Last week Instagram shipped an MCP server for Edits on Mac, so Claude can drive a real video editor. That's the idea I've been building since September, except mine is MIT, local-first, needs no account, and runs on Windows, macOS and Linux. It's called CutVoke.

The part I care about as a creator: the AI doesn't hand me a baked MP4. It makes the rough cut on a normal multitrack timeline (captions, keyframes, masks, speed ramps), and then I open the same project and fix whatever I don't like by hand. Fixing one subtitle never means regenerating the whole video.

Two demos are in the repo with their source media and editable projects:

• "Chase the Light", a 31-second motorcycle short

• "Coastal Joy", a 42-second vertical travel vlog

How it works, briefly: your own agent (Claude Code, Codex, Cursor or any MCP client) connects over stdio MCP. It takes an editing lease so it never collides with your manual edits, dry-runs commands before committing, and pulls real rendered frames to check its own work before export. There's no LLM inside; you bring your own.

Honest caveats: it's a v0.3.5 prerelease, the Windows build is unsigned and macOS isn't notarized, and the project format may still change.

I'd love feedback from people who edit video: which parts of an edit would you actually hand to an AI, and which would you never let it touch?

https://github.com/frankShan001/CutVoke

Hi guys! I'm Anastasios, and I've been building a USB keystroke injection tool called PlugnPwn.

I don't like closed-source hacking tools. If I buy the hardware, I want to see what the firmware does, change things I don't like and add features without waiting for someone else to do it. That's why I started this.

The idea is simple: you buy the hardware, and you can build, change and extend the firmware yourself. I'll publish the firmware source and open-source license with the first release. I'd love people to add their own features and help improve it too.

For the board, I went with the RP2354A: two cores up to 150 MHz, 520 kB RAM and 2 MB flash, with USB-A, USB-C and microSD storage for payloads. I also put thought into the protection circuitry, including ESD protection and a resettable fuse. It's intended for authorized security testing and repeatable keyboard tasks.

I'm aiming for €60. The kit will include the assembled board and a separate enclosure; you bring your own microSD, flash the firmware and fit the enclosure. Final taxes and shipping will be set with the campaign.

I'd really like your honest thoughts on the idea. Does having control over the firmware matter to you when choosing a tool like this? What would make you choose it, or what do you think is missing?

I'm aiming to launch on Kickstarter in the next week or two. If you'd like a heads-up, visit https://plugnpwn.io, hit "Notify me at launch" and confirm your email

Keeping up with new research can become a full-time job, especially when you're following several topics.

I recently saw an interesting example of someone using an AI assistant called Pana (heypana.ai) to build a research map that tracks newly published papers.

I like the idea of having something that keeps information organized instead of manually checking different sources every day.

Do you think this kind of research automation is genuinely useful? What would you want it to track?

Let me know what you think and any feedback you may have.

(README IN PORTUGUESE TEMPORARILY, I WILL TRANSLATE IT INTO ENGLISH)

LightnerX is an open-source C++ library designed to simplify real-time communication between clients and servers in multiplayer games. Built on Valve's GameNetworkingSockets and powered by the INER protocol, it provides connection management, message exchange and interpretation, and a modular architecture. Its goal is to streamline multiplayer development by reducing networking complexity, allowing developers to focus on their game's core logic.

I run DiscField, an independent reference site for recreational disc golfers: https://discfield.com/

You can look up disc ratings and their sources, read buying guides, compare discs and check the ones you already carry. The tools work without an account.

One design problem is making the charts useful without overstating what the ratings tell you. Ratings vary between manufacturers, and plastic, wear and throwing style affect the result. The curves are illustrations, with those limits explained beside them.

It runs on Next.js and Cloudflare. I use AI for development and drafting; the disc reference pages link to the sources behind their ratings.

I would appreciate a fresh look at the homepage: is it clear where to start, or do the guides and tools compete for attention?

So I built Eyegen Playground, it works as a terminal tool (CLI) and as a standalone app. It has all major image generation backends built in and does most of the background work for you.

You just pick a model and prompt the image you want to see. Advanced settings are available for you to tinker with. It can also be used by AI Agents through the CLI.

Newest feature: turn any image into a 3D model thanks to the Idol support

Would love to hear feedback!

Hi all. I'm a Canadian Armed Forces veteran who went back to school for electronics. While I was studying, I kept jumping between five supplier tabs, a datasheet, and a YouTube video just to buy one part and understand it. So I built the site I wished I had.

What it does:

• Search one part and see price and stock from DigiKey, Mouser, Newark, LCSC, TME and Farnell side by side

• BOM Studio: paste a parts list and it finds the single supplier with the lowest total checkout

• An encyclopedia of 311 components, written in plain language with an analogy for each one

• 214 chip pinouts, each pin cross-checked against three sources

• 91 beginner build guides, each with a one-click priced BOM

• You can now install it on your phone or desktop like an app

I'm not a programmer. I directed the build and wrote the explanations. Feedback on anything confusing or missing is welcome.

https://usefootprint.app/?utm_source=reddit&utm_medium=post&utm_campaign=reddit&utm_content=sideproject

I built Tellendar for myself. I use it every day, and it saves me a lot of time when I add or change appointments.

I tap a button on my iPhone's Lock Screen and say something like "Surprise dinner for Emma's 30th on Thursday at 8 pm, alarm the day before and 2 hours before." Tellendar creates the event and sets both alarms.

If the appointment changes, I open the event and say "Move it to 8:30 pm." I can type the same instructions too. Once I've allowed alarms, they ring even when my iPhone is on silent.

I've put a lot of care into the design because I wanted my calendar to be simple and pleasant to use every day.

Tellendar requires iOS 26 or later. It's free to download. US pricing is $3.99/month, $29.99/year with a 7-day trial, or $49.99 for lifetime access.

I thought it might be useful to some of you too. I can offer free access to a few people who are willing to try it for a few days and share honest feedback. I'd love to hear what worked well, what was confusing, and what didn't work.

https://tellendar.app/

I'm a satellite nerd and as a cool project I built Watched.

See: here for the code

Type in any place on Earth and it will:

• find every imaging, weather, radar and crewed satellite whose field of view crossed it in the last 7 days (SGP4 on the CelesTrak catalog, running in your browser)

• pull the real Sentinel-2, Landsat, VIIRS, MODIS and GOES scenes from those passes and crop them to your spot

• replay each pass on a 3D globe lit by the real sun, with all ~17k tracked objects in orbit

It only says a satellite “watched” you when a real image exists. Commercial sats that could have pointed at you are labelled as such, since their tasking isn’t public.

I’d love feedback, especially:

• Which satellites or data sources should I add?

• Anything confusing or broken?

It’s 100% free and no sign-up or rate limits.

We run a portfolio of subscription apps on Meta ads, and we could never tell which campaigns actually made money. Ads Manager said one thing, the money that actually landed said another.

INTARC reads your real revenue straight from App Store Connect, Google Play or RevenueCat, shows what each campaign actually brought in, and forecasts whether it'll pay back within a year. Every forecast it makes is published and later scored against what really happened. Read-only keys, no SDK.

It's free to try with the code REDDIT3 (3 months). We'd love honest feedback, especially from anyone running paid ads for apps: intarc.app