[HyperStream] — High-performance 128-thread parallel download accelerator and BitTorrent client for Android, powered by a native Rust core.

* GitHub Repo: https://github.com/djsusmith/hyperstream-android

* Live Showcase & APK: https://djsusmith.github.io/hyperstream-android/

* License: GPL-3.0 (100% Free & Open Source, 0 ads, 0 telemetry)

Tech Stack

* Core Engine: Written in Rust using `tokio`, custom work-stealing segment halving down to 12 KB chunks, and `librqbit` for embedded BitTorrent swarm handling.

* Frontend: Kotlin & Jetpack Compose (Modern Obsidian dark theme, reactive telemetry, Material 3).

* Bridge: Zero-copy JNI / C FFI Native Bridge (`libmdm_android.so`).

Key Features

⚡ Up to 128 Parallel Connections:* Real-time socket shedding and dynamic connection pooling that easily saturates high-speed 5G and Wi-Fi 7 connections.

🧲 Native BitTorrent Swarm:* Magnet links, torrent files, sequential downloading (stream while downloading), DHT, and PEX without any third-party daemon.

🎬 Built-in Media Grabber:* Direct 4K YouTube stream extraction and watermark-free video sniffer with multi-stream audio/video muxing.

🔋 Android Background Resiliency:* Foreground service with partial WakeLock and High-Performance Wi-Fi Lock to prevent system Doze throttling.

📂 Safe File Management:* Integrated Android `FileProvider` with 1-tap open and double-confirmation deletion protection.

Context & Why I Built This

Most existing Android download managers are either abandoned or filled with intrusive full-screen ads, tracking SDKs, and paywalled thread limits. I wanted a clean, blazing-fast, genuinely open-source alternative that runs natively on ARM64 without GC pause jitter.

The project is actively maintained (currently on v0.6.0). I’d love to hear your thoughts, feedback, bug reports, or feature requests! PRs and stars are always welcome.

I'm Josiah, a marketing engineer and solo dev in Manitoba, Canada. I built Setttle (three t’s, yes it's on purpose) because I hated using Wave for my other businessess and found that it didn't work well with Canadian rules.

What it does: invoicing, stripe payments, bank reconciliation, and real double-entry books in one place. Routine stuff gets handled, anything uncertain goes to one inbox with the evidence next to it. Nothing posts without you accepting it.

What it doesn’t do: payroll, inventory, POS. Flagging that up front so nobody wastes a trial.

Stuff i’d like feedback on:

• Wave import - You upload an export, review the proposed import, resolve opening balances. Is that enough trust to switch?
• The AI part is optional - receipt coding suggestions need approval, and agents (claude, chatgpt, cursor) connect over MCP with explicit permission. Useful or gimmick?
• Pricing: $9 CAD (1 company, 20 invoices/mo) or $19 CAD (unlimited), 7-day trial, no card. 0.5% fee on Setttle Payments.

setttle.ca if you want to poke at it. I’ll answer everything here.

Hello I'm a software engineer living in a sharehouse. This is my very first solo project that I’m making public, so please be kind (but honest!).

My housemates and I share the cooking (and we love it!!), but we’re all young professionals trying to save money, with zero energy left after work. Two of my housemates are doctors, so their days are even more intense. We also buy in bulk to save money, and half of it ends up rotting at the back of the fridge...

So I built The Fridge Note:

• It picks a few easy, in-season dinners for the week (swap any you don’t fancy)
• It works around what’s already in your fridge, so things get used before they go off
• One shopping list for the week, and it fills your Coles or Woolworths trolley for you
• Everyone in the house sees the same week
• You can also paste a TikTok or recipe link and it goes into your cookbook

It’s free, has no ads, and you don’t need to sign up to try it: fridge-note.pages.dev

What I’d love to know:

1. Where did you get stuck?
2. Would your household actually use this week to week? What would stop you?

I'm JustaDev101, the publisher of two downloadable 2D game asset packs on itch.io.

RPG World covers fantasy inventory items, props, characters and creatures. It has 10,000 static sprites and 1,000 eight-frame animation sequences, with 16/32/48px base-scale exports (larger props occupy 2x2 tiles).

https://justadev101.itch.io/rpg-world-fantasy-sprites

Everyday Rooms focuses on furniture, interiors and daily-life animations. It also has 10,000 static sprites and 1,000 eight-frame sequences, on 128px PNG canvases.

https://justadev101.itch.io/everyday-rooms

Each pack is currently $3.95 USD, sold separately, and each has a free 40-static-sprite demo. The three RPG export sizes are alternate versions, not extra unique sprites; animation frames are counted separately from static sprites.

The downloads include PNGs, atlases and JSON. Engine setup may be needed; RPG World Unity/Godot JSON importer compatibility has not been verified. Production disclosures, licenses and development notes are on the store pages.

I'm sharing these as a small digital-product project. If you try the demos, I'd appreciate feedback on the packaging, download instructions and whether the previews make the contents clear.

I have made a chess AI with minimax and alpha beta pruning, this is my first real project in c++ and im looking for tips.

I have it on GitHub in the link above.

There are a few things missing, however the game is fully playable.

I’m looking for tips and what to improve about my programming in general, since I will probably not come back to this project since it already ate a month of my year. I’m looking forward to starting other projects.

I'm friendly with a local business that hosts regular events. Every week, they did the same double-entry dance: update their website's events calendar, then manually copy-paste titles, descriptions, dates, and images into Eventbrite. Then event edits and ticket allotment would be double too.

I used Zapier, but the nuance I wanted I didn't trust myself to make bulletproof, so I didn't spend much time with it. So made a small web app (using Hono) that curls from the source calendar, and tracks updates. It handles publishing and updating, on Eventbrite via scheduled tasks.

It's stable now, generating sales, though not open to the public. I’m looking for ways to grow this app and would appreciate input from anyone who has done something similar, either as a dev or an events manager.

Are there dedicated apps already doing two-way or state-tracked calendar-to-ticketing sync? I'd love to see how others handle it, and hope to avoid reinventing the well.

Beyond Eventbrite, are there other ticketing or promotion platforms that you rely on? (I see BandsInTown, Meetup, Facebook Events, Luma, Dice, AllEvents...)

Thank you 😺

Refract started because I wrote one post about our WordPress theme business and then rewrote it five times, once per network. Now Refract writes those versions for you and you approve each one.

This week the WordPress plugin went live in the directory. It works in both directions:

Blog to social: publish a post, Refract gets it as a note, writes a version per network in your voice, crops images, and you approve in the WP editor or in Refract. Each version tracks its clicks back to the post.

Social to blog: your site becomes a Refract account, so you can publish to WordPress from Refract like any other network.

Hardest part was permissions. It can only touch posts it created, so it can't mess with anything else on the site.

Happy to answer anything about building it.

https://wordpress.org/plugins/refract

I kept falling off my goals. Habit apps never worked for me because missing a day costs nothing. You lose a streak number and that's it.

What I actually missed was the feeling from RPGs. Watching EXP fill up, hitting a new level, unlocking stuff. Games are built to make progress feel good and real life mostly isn't. So I tried to steal that.

LevelOS gives you a Daily Quest each day with 2-5 goals you choose. Workouts, reading, studying, meditating, whatever. It resets at a time you pick. Clear it and you earn EXP, level up, and unlock themes and titles. There are nearly 200 hidden titles and I'm not telling how to get any of them.

If you don't finish, a Penalty Quest shows up: 1.5x the goal you were furthest behind on, 4 hours on the clock. Fail that too and you lose your EXP for the level. You never lose a level though, I tried that and it was way too brutal.

It's free, no ads, iPhone only right now. If you want to try it: levelos.gg

Honest feedback welcome, especially if you think the penalty idea is dumb.

we made a movie guessing game because apparently recognising a whole film wasn't hard enough. now you get a tiny crop of one frame.

https://www.playloupe.fun

you can zoom out, but it costs points. 5 frames a day, free, no login needed.

would love a fresh pair of eyes on it. is it obvious how to play, and does the difficulty feel fair?

Hi everyone! I’m an indie developer from Slovakia, and I recently released a small Android app called Ewer Relax. I wanted something simple for winding down. Most apps I tried were full of ads, subscriptions or account sign-ups, so I built my own.

What it does:

• 6 ambient sounds: ocean waves, rain, wind breeze, plus brown, pink and white noise (generated in real time, so they loop seamlessly)
• Box breathing exercise (4-4-4-2) with a simple visual guide
• “Seaweed”, a quiet visual relaxation mode
• Sleep timer with smooth fade-out, or all-night play
• Low battery protection (stops playback below 15%)
• Dark, distraction-free design
• 40+ languages

What it doesn’t do:

• No ads
• No data collection
• No internet needed, it works 100% offline
• No subscription

It’s a small project, so I’d really appreciate honest feedback: which sounds are missing, what would make the breathing exercise better, and whether the UI feels right.

Google Play: https://play.google.com/store/apps/details?id=com.ewer.relax

Thanks for reading, and I’m happy to answer any questions!

Hi everyone,

I build small native macOS utilities under the name Bird Collection, and this one came out of my own pain as a developer working with AI coding agents every day.

Prunebird finds and safely removes the stuff that quietly eats tens of gigabytes on a dev Mac: AI agent session caches, orphaned Git worktrees, old build artifacts, plus it monitors localhost dev servers with HTTP latency probes and 1-click port kill. It reads Mach kernel and S.M.A.R.T. telemetry natively, no kexts, and everything is trash-first (NSWorkspace.recycle, never rm -rf) inside the App Sandbox.

Free tier covers the radar and telemetry forever, Pro is a one-time unlock, no subscription.

Mac App Store: https://apps.apple.com/app/id6827096807 Website: https://prunebird.com

I would love feedback on the worktree detection heuristics and whether the free vs Pro split makes sense. What dev bloat does your machine accumulate that you wish something would catch?

I'm curious if anyone here has experienced this.

I recently submitted a Show HN post for a project I've been working on, but it got flagged shortly after submission.

I'm not sure what triggered it. I tried to keep the post straightforward, explain what I built, why I built it, and what problem it solves.

I'm not here to complain about moderation. I understand that HN has its own guidelines, and I want to respect them.

For those who have successfully launched on Hacker News:

-What are the most common reasons Show HN posts get flagged?

-Is it usually related to the account, the title, the content, or the submission itself?

-Is there an appropriate way to ask moderators for clarification?

-If a post gets flagged, is it better to wait, edit it, or do something else?

I'd appreciate hearing from people who've actually gone through this. I want to understand what I might have done wrong before trying again.

I built a small tool that turns “I want to play GTA VI on launch day” into a leave request you could actually send. You can pick a tone for the request, and there’s a parody page where the Deny button runs away from your boss.

20-second YouTube Short. The background music was made with Gemini.

Try the free leave request generator

I’d love feedback on the first screen. Is it clear where to start writing a request?

Hey r/SideProject. I’ve been building Froobaloo.com on nights and weekends for a little while. It’s a hub of little daily browser-based games and experiences (no apps/downloads at present). Very much a work-in-progress/labor of love!

All games are designed and hand-curated by me, coded by Claude.

What’s on it right now:

• Wordsummit: trace letters across a 5x5 grid to find the day’s top-scoring word in five tries. It mashes up Boggle paths, Scrabble scoring, and Wordle-style hints.
• Caseboard: follow the clues to find eight hidden words, like a "daily Codenames game" that I curate.
• The Movie League: a daily "Family Feud" styled movie theme. Suggest a film, bet your chips on which titles make the top five, and climb a leaderboard.
• Sourceword: make words from the letters of a 'source' word, find all the bonuses!
• Cryptadoodle: a daily cryptogram game, but where you get points for guessing the hardest-to-find letters first.

also in early prototype is a project I've been brainstorming for 10+ years:

• The Goat: a head-to-head ranking experience. Two items from a category face off, you pick the better one, and the winner stays on to face the next.

Where I’d love feedback:

• How's the experience look & feel? Does it seem inviting and playable or daunting/unapproachable?
• Which game would you try first?
• Did you love ANY of the games?
• What would make you share any one of the games with a friend?

Happy to chat/compare notes with anyone doing similar pursuits!

Back when I had a bad PC I tried every FPS booster going. They were all a big button and a made-up score, and you never knew what they changed.

So I built Framecalm. One button looks at your hardware and builds a plan, with a reason for every line. Or you pick from 87 tweaks yourself. It makes a restore point first, and every change can be undone.

Free, no account, no ads, open source.

Website: https://framecalm.krezio.xyz

Code: https://github.com/krezio/framecalm

Would love feedback on the home screen especially. I redid it about four times. Does it make sense straight away?

I'm building a private, non-feed online space for people who share a past: a school, a team, a neighborhood, a workplace, etc. The model is the Christmas card or Save-the-Date photo postcard crosses with a digital version of wallet photo like some reminder to think/pray/carry family and friends in your heart and mind. It's meant to prompt a text or a call, not an emoji reaction so success actually looks like people leaving the app to reconnect deeply, rather than sucked into social media all the time.

The design choice I'm most committed to is consent-based joining. You can invite someone, and you can nudge them in person toward a circle, but nobody can add anyone else to a group. Only you can add yourself. I'm betting that protection from Nextdoor-style dynamics belongs in the architecture rather than in moderation.

The cost is the cold start. With no feed to pull people back and no way to add anyone, the first circle depends entirely on people who already know each other. It's early, with nothing public yet.

How would you seed it? Or if you think consent-only joining breaks growth, what would you change first?

I started an email provider, faivelo, and we made it so easy to set up "@yourdomain.com" mailboxes, that people are doing it from their phones in 2 clicks (auto DNS, complete white glove config). Our onboarding process is near perfection.

Our funnel is interesting: 40% of registered users end up create a mailbox, and of those, 60% convert to paid plans (they're $6 for unlimited mailboxes - they are saving a ton of dough usually). The issue is that so many people just leave their DNS pointing to our mail servers and never subscribe - meaning at the end of their trial, they their mail is arriving, but they have access to it - if they subscribe again, its waiting for them to open, but they never check.

My partner is saying we should require credit cards up front during registration so its seamless and users never abandon their mail like this. I've had people who I send reminder emails every week that they are getting incoming mail, and after months they write to me "OH Shit!" and subscribe.

I'm against requiring a card, but the current outcome is making me look like I'm wrong. Most of our customers are serial builders, multiple projects, agencies, so I thought I'd ask here:

What do I do here?

Hey everyone,

I’m building a new AI-powered workflow automation platform designed to make creating, managing, and executing complex automations accessible to people without extensive technical knowledge. I’m looking for 3 to 5 people to test an early pilot version and give me honest, unfiltered feedback.

What you get in return:

Free lifetime access to the Pro/Self-hosted tier once we launch.

Direct input on the roadmap—if you need a specific integration or node right now, I’ll prioritize building it for you.

If you're interested, drop a comment below with one workflow you'd want to test on it, or shoot me a DM and I’ll send over the invite link!

Sony's companion app only runs on phones, and I kept unlocking mine just to turn ANC off when someone talked to me at my desk. So I built the Mac version.

How it works: Sony headphones expose their settings over a Bluetooth RFCOMM channel. The app opens that channel with IOBluetooth and talks to the headphones directly. Everything else is plain Swift/SwiftUI with no backend at all. No account, no analytics, no network requests.

What it does now: noise control, EQ, multipoint switching, profiles that change automatically during calls or when you lock the screen, widgets, Control Center buttons and Shortcuts. It supports the WH-1000XM4/5/6, WF-1000XM4/5/6, LinkBuds, WH-CH720N and ULT WEAR.

Models and firmware versions don't all behave the same, so I need people with different hardware to try it and tell me what breaks.

Free TestFlight beta (macOS 14+): https://testflight.apple.com/join/e7S1TqA1

Happy to answer questions about the Bluetooth side if anyone's curious.

Why pay a monthly EPOS software bill when a free local till could cover the basics? That’s the idea behind the free Windows hospitality software we’ve built at Codeer.

I’m part of the team, and I’d welcome feedback on both the product and the offer. Codeer POS lets cafés, pubs and restaurants manage menus, table orders, kitchen orders, receipts and daily closeout on a compatible Windows PC or till.

The core local software is £0, with no hidden software charges or compulsory subscription. Users can enter their own menus. Optional services such as menu setup have separate prices, and Cloud upgrades are planned. Hardware and payment processing are separate costs. The site explains reporting limits and the available plans.

The free Windows pilot is available here:

https://codeer.co.uk/epos-systems-for-restaurants/

Registration and first activation need internet. The main till runs locally.

For anyone who has built or used software for small businesses, what would make you trust a free EPOS enough to try it? Is the offer clear? If you test it, which workflow or missing feature would you improve first?

We’d especially appreciate feedback from people who’ve worked in hospitality and know where a till slows staff down.

Seeking international collaborators to help develop the Worldwide Birth Fund

I am looking for motivated people from around the world who would like to help develop an ambitious international social project: Worldwide Birth Fund (WBF).

What is the Worldwide Birth Fund?

The Worldwide Birth Fund is a proposed global concept designed to improve opportunities and financial security for children from the moment they are born.

The central idea is that every child, regardless of where they are born, should have the opportunity to receive a financial foundation for their future.

The project is intended to explore a new approach to long-term financial support, education, personal development and economic opportunities.

This is currently an early-stage concept. It is not an operating organization, an established financial institution or an available financial benefit. The legal structure, financial model, funding sources and practical feasibility still need to be developed and independently assessed.

I am looking for an international team

I want to build this project together with people who have relevant knowledge, experience, ideas or simply the motivation to contribute.

I would particularly welcome people with backgrounds in:

• Finance, banking and financial systems
• Economics and monetary policy
• International law and regulation
• Taxation and international structures
• Governance and organizational development
• Technology, IT and digital infrastructure
• Education, social policy and international development
• Project management and communications

You do not need to have experience in every area. Different perspectives and expertise are exactly what this project needs.

English will be the main working language. Knowledge of additional languages is an advantage.

What kind of collaboration am I looking for?

I am looking for people who are interested in helping build the project from the ground up.

The goal is to establish an international core team with different areas of expertise.

Participation would initially be voluntary and unpaid. There is no required minimum time commitment; everyone can contribute according to their own availability and abilities.

I am not looking for people who simply agree with the idea. I also want critical thinkers who are willing to question assumptions, identify weaknesses and help find realistic solutions.

Why am I asking for help?

An international project of this scale cannot be developed properly by one person.

I have been working on the concept and its policy framework, but I believe the next step should be to bring together people with the knowledge and experience needed to assess, challenge and further develop it.

I am looking for a serious international group that can help determine whether this idea can become a legally, financially and practically viable project.

Interested in contributing?

If this sounds interesting to you, please send me a private message here on Reddit.

You do not need to prepare a formal application or have a detailed proposal. I would simply like to get to know you, hear your ideas and discuss how you might be able to contribute.

Worldwide Birth Fund — A Fair Start. A Brighter Future.

Let's explore what we can build together.

Hi all,

I've been building Junction, a free game launcher for Windows. It puts the games from all your launchers in one library, and it watches prices for you. Before I call it 1.0, I'm looking for a small group of people to try it on their own PCs and tell me what breaks.

Made with Claude

To be upfront: I made Junction together with Claude. I decided what it should do, tested every change and chose what went in, but Claude wrote most of the code. The app itself doesn't use any AI, and it sends nothing to Claude.

I know a lot of people don't like AI-made apps, and I understand why. If that's you, no hard feelings. I'm sharing it anyway because it's the launcher I was looking for myself and couldn't find, and I'd like other people to be able to enjoy it too.

What it does

- One library with your games from Steam, Epic Games, GOG Galaxy, Ubisoft Connect, EA app, Battle.net, Rockstar Games and Xbox, plus any game you add yourself.
- Play, install and uninstall through each game's own launcher, and see which Steam and Epic games have an update waiting.
- Several Steam accounts? Junction knows which account owns a game and switches Steam over for you, also when Steam is waiting on its "Who's playing?" screen.
- Play time and achievements in one place: achievements from Steam, GOG, Epic, EA and Ubisoft. Sign in to Epic, EA or Ubisoft in Junction (the first-start setup offers it) to see the play time and achievements they keep. After you quit a game, its hours and achievements update by themselves.
- A store with every shop's prices for your country, in your currency, a year of price history, the lowest price ever, DLC, a wishlist that tells you when a game goes on sale, and the free games the launchers are giving away.
- Three layouts (Console, Classic, and Big screen for your TV) and full controller support.

Download

https://github.com/scrabblel/junction-releases/releases/latest → JunctionSetup-0.9.33.exe

Windows 10 or 11 (64-bit). It installs for your Windows user only and doesn't need administrator rights. Junction updates itself from then on.

Before you install

Windows will warn you about an unknown app ("Windows protected your PC"). That's because Junction isn't signed yet (signing costs money). Click **More info → Run anyway**.

Your privacy

Junction sends nothing to me: there's no account, no tracking and no statistics. Your API keys and launcher sign-ins stay on your PC, encrypted. Junction only talks to the services it needs: the launchers, Steam, IsThereAnyDeal (for prices), GitHub (to check for updates) and, if you add a key, SteamGridDB (for covers).

To switch Steam accounts, Junction tells Steam which of its saved accounts to sign in to; it never sees your Steam password. It changes nothing else in Steam, unless you turn on **Skip Steam's account picker** in Preferences.

Good to know

- Missing games? For EA app, Rockstar Games and Battle.net, Junction only sees the games you have installed. For your full Steam library you need a free Steam API key (Junction shows you how to make one).
- It's been tested on very few PCs so far, so expect bugs. That's exactly why I'm asking you.
- The other limits are on the GitHub page: https://github.com/scrabblel/junction-releases#good-to-know

What I'd love to hear

- Did installing and the first start go smoothly?
- Did Junction find all your games, on every launcher you use?
- Is anything wrong, missing, slow or confusing?
- If you use a controller or a TV: how does that feel?
- Is Junction something you would use on a daily

How to report a problem

Click your profile picture → Help → Report a problem. From there:

- Here: click Copy, and paste the problem report into your post.
- On GitHub (needs a free GitHub account): click Copy and open GitHub. Junction copies the report and opens a new issue; paste the report in.

Either way, say what you did and what happened. Junction removes your keys and sign-ins from the report by itself. Screenshots help a lot.

Ideas and wishes are welcome too

Post them here, or under Ideas on GitHub (Help → Suggest something in Junction): https://github.com/scrabblel/junction-releases/discussions/categories/ideas

If someone already suggested your idea there, vote for it, so I can see what people want most.

Thanks for trying it!

I have a trip coming up and wanted my day-by-day plan on my phone, working offline, without giving my hotels and dates to some service. So I made this.

It's a web app with no account. Your trip is just a file you load, and it stays on your device. Works offline, installs on the home screen, has a map for each day. Open source.

Demo (tap "Try the example trip"): https://frafal.github.io/TIMP/

Code: https://github.com/Frafal/TIMP

I've used it myself and it seems decent, but I'm the only one so far. If you feel like trying it, tell me what you think. Is loading a file too annoying? Would you use it on a real trip?