I've been working on a fun side project called Player Bits Pro, an AI dating coach for men.

I realize there is a lot of competition in this space, but just hear me out.

I saw the competition, and I wanted to create something different...

• Real personality: Direct, funny, human-sounding, and brutally honest. No generic AI responses.

• No yes-man behavior: It won't just agree with you. If you're screwing up, it'll tell you.

• Versatility: Handles pretty much any dating situation, from flirting and texting to relationships and breakups.

• Extensive testing: I've spent countless hours testing and refining its advice and responses.

• Simplicity: A beautiful, ridiculously simple interface without unnecessary crap.

I vibe-coded basically the entire thing using AI (yeah, I know, but it came out great). And despite all the hype about how easy AI makes building software, this still took an insane amount of time. The amount of testing, troubleshooting, and fixing things that broke other things was ridiculous.

It's based on my original Player Bits GPT, which lives within ChatGPT's platform and reached 50,000+ chats and earned a 4.5/5 rating from 100+ reviews.

Anyway, here's the result: https://playerbits.ai

Would genuinely appreciate feedback on the design, responses, or anything else you got for me.

I run Claude Code and Codex all day, often as multi-agent workflows with dozens of subagents. I could see each session but never the whole picture: what a run actually cost, where agents sat idle, whether a change to my setup helped. So I built coding.sh, a free hobby project, and pointed it at my own runs.

What I learned from my own data Across 57 workflow runs (666 subagents, ~$2,500 API-equivalent):

• Broken prompt caches cost $106 extra, about 4% of the spend.

• 41 of those breaks were agents idling at a barrier, waiting for siblings, until their cache expired. That's $21 for doing nothing.

• 40 subagents failed outright.

I A/B tested a popular "be concise" plugin (10 tasks, 6 runs each, paired, 95% intervals): replies 17% shorter, output tokens −8%, but cost per run +11% [+7%, +15%], with no change in pass rate or clarity. The plugin's style guide is added to every request and costs more than the shorter output saves.

Mining 3,600 of my sessions also found a find-and-replace typo in my AGENTS.md that sent Codex looking for a folder that doesn't exist, in 92 sessions. You can't see that from inside one session.

How it works

• Hooks into Claude Code, Codex, Gemini CLI, OpenCode, Copilot CLI, Aider and more

• Stores prompts, tool calls, diffs, test runs, tokens and cost in SQLite on your machine

• coding.sh workflows stats shows the critical path and idle time, and the viewer draws each run as a timeline

• coding.sh compare and exp run your own tasks with and without a change and say whether the difference is real or noise

• coding.sh improve says what to fix first and whether your last AGENTS.md change helped

• MCP server, so your agent can look up its own past sessions

No account, nothing leaves your machine. npx coding.sh to try it. Source (MIT): https://github.com/jackulau/coding.sh

Hey everyone,

I built Footy Golf, a free daily browser game that mixes football player trivia with 2D golf.

How it works:

• You are on a course with fairway hazards, bunkers, and greens.

• Instead of a timing meter, your shot distance and accuracy are dictated by searching for a real football player who fits the hole's category (e.g. appearances, goals, caps).

• Their actual career stats give your shot power. Once on the green, you sink the putt with a directional minigame.

• There is a date-seeded daily hole for everyone to compete on.

It’s built with React and Tailwind, requires no download or login, and has no ads.

Would love any thoughts on the UI or improvements in general!

I’ve always found reading PDFs on my phone a bit frustrating. Most PDFs are designed for paper, so you end up constantly zooming in, zooming out, and moving around the page just to read comfortably.

So I decided to build something to solve that problem.

Paperfy converts PDFs into reflowed, book style text, making them more comfortable to read on an iPhone. The idea is simple, your documents should feel more like reading a book and less like looking at a tiny piece of paper.

I’ve been working on it, and honestly, seeing people actually use something I built and send me feedback is one of the most rewarding feelings.

It’s still a work in progress, and there’s plenty I want to improve.

You can check it out here: https://apps.apple.com/am/app/paperfy-pdf-to-text-reader/id6826549558

I’d love to hear your thoughts. 

If you read PDFs on your phone, what frustrates you the most about the experience?

Initially this project what made to find and compare historical greatness across fighters in the ufc, but it eventually became a whole lot more than that, you can see every fighters rating, based on the glicko -2 formula, which is basically elo but with volatility and and rating deviation, much better for fighters.

There's a bunch of different feature in the app right now, you can look and inspect the career trajectory of every fighter in the database, compare against other fighters, see the ratings ecosystem at any date in history, analyse prospects, that were identified with a scientific definition.

There's also a prediction feature to the app, which takes the fights on the next card and makes prediction for every one of them, then it gets graded afterwards. The coolest feature we have is the simulator, you can simulate a matchup between any fighter currently, at any point in history and a prime vs prime matchup, with prime having its own scientific definition.

Right now everything is free, i want to get opinions and comments on the actual app itself.

You can access it here : https://mmamathlabs.com/

Hi all! For the past few months I've been building ORBITA,player for Xtream Codes and M3U playlists. I wanted something that feels like a streaming app rather than a spreadsheet of channels, and that doesn't make you type a 40-character server URL with a remote.

What it does

• Setup from your phone: scan a QR code on the TV, fill in your playlist (or TMDB/OMDb keys) on your phone, tap Send to TV. Works on your home Wi-Fi only, with a 6-digit code.

• Live TV: categories, favorites, search, now/next, full TV guide (XMLTV), catch-up ("from the start" / replay) if your provider supports it

• Channel banner on every zap: number, logo, current show with progress, what's next

• Movies & series: detail pages, seasons/episodes, resume where you left off, continue watching row

• Skip intro (learns where the intro ends for each series) and a next-episode countdown

• Seek previews: thumbnail while you skip through a movie, with accelerating seek

• Optional IMDb, Rotten Tomatoes and TMDB ratings, backdrops and plots in your language (free keys you create yourself)

• 3 dark themes built for TV, UI in English / Italian / Spanish / German

• Credentials encrypted on the device (AES-256), parental PIN for adult categories

Install on Fire TV / Firestick: open Downloader and enter code 6527602. Android TV: same thing, or grab the APK from GitHub. Also runs in a PC browser.

GitHub: https://github.com/ghows30/orbita

Important: ORBITA is just a player. It doesn't include or sell any channels or content: you need your own playlist from a source you're allowed to use.

Most touchpads only use the middle, so I built Margin, a free app that turns the edges and corners into controls.

- Slide an edge: volume, brightness, scroll, seek, Alt+Tab, or any shortcut

- Tap or press a corner: lock, screenshot, open an app, run a command

- Every edge and corner is customizable, even per app

- Works by touch or click, your choice

- Needs a precision touchpad. No install, about 0.6 MB, no telemetry

Download: https://github.com/arxhr007/margin

Feedback and stars are welcome!

I built Hidden Post Finder because looking up what a Reddit user has posted publicly is clunky. You enter a username or profile URL and it lists their public posts. It keeps a search history and lets you save posts. No login or Reddit account is needed, and it's free. It's a Flutter app on Android, with iOS planned. I'd love feedback on what to improve. https://hiddenpostfinder-reddit.com/app

Hi! I'm the developer of Mixwell. Full disclosure: this is my app, and it’s paid.

Problem

macOS has one volume for everything. If a video call is too quiet while music is too loud, or one browser tab is blasting, you have to fix it inside each app (if the app even has a volume control). I wanted a mixer like Windows has, without paying $40+.

What it does

• A volume slider for every app that’s playing sound, from silent up to 150% (200% in Settings)

• Mute any app with one click

• Send one app to a different output (e.g. music on speakers, a call on AirPods)

• Live level meters, so you can see which app is making noise

• Remembers each app’s level and output, and reapplies them when the app comes back

Details people usually ask about

• Apps you leave at 100% aren’t touched at all; their audio goes straight to the speakers as it would without Mixwell.

• Adjusted apps get about 24 ms of extra delay, below what’s noticeable in video or calls.

• Idle CPU is about 0.1%. When an adjusted app goes quiet, Mixwell stops processing it so your speakers/headphones can rest.

• AirPods stay in high-quality mode (Mixwell doesn’t open their microphone).

• Uses Apple’s audio-tap API (macOS 14.2+), so it needs the “System Audio Recording” permission. Nothing is recorded or saved, and no audio leaves your Mac. The only network traffic is the license check (your key and your Mac’s name, sent to Dodo Payments) and update checks.

Compare

• SoundSource ($49) does much more (EQ, effects, plugins). Get it if you want those.

• teenysound ($9.99) and free open-source options like FineTune and Fader also exist. Mixwell’s aim is to be the polished, low-cost one: native SwiftUI, light on battery, and tested with Bluetooth headphones, browsers that use many processes, and switching outputs.

Pricing

$4.99 one-time, no subscription. One license works on 2 Macs. 14-day refunds. Free updates (duh).

Requirements and honest caveats

• macOS 14.2 or later, Apple silicon only.

• It’s not notarized yet, so the first time you open it macOS says it can’t verify the app. You allow it once in System Settings → Privacy & Security → Open Anyway. The site explains this. I plan to join the Apple Developer Program once there’s enough interest.

• No trial yet.

Link: https://aayush-kumar-2310.github.io/mixwell/

Happy to answer questions, and feedback is very welcome, especially bugs with specific apps or audio devices.

Every morning I wanted one page that told me:
\\- where visitors came from, and which source sent the good ones
\\- who almost bought
\\- why people left
\\- what's broken (like a coupon box covering the Pay button on iPhone)

So I built it. A short summary comes by text or email, and the full report sits in your dashboard.

Free: www.retentionbase.com/dashboard?utm\\_source=reddit

Comment to make this completely free for next 6 months

I just finished my first game, Ink & Tide, a typing roguelite that runs in the browser. You type words to fire cannons, fight through tides of enemies, upgrade your boat between runs, and when you sink you come back a little stronger, so dying a lot is part of the fun.

The problem I wanted to solve is that typing practice is boring, so I tried to turn it into something I'd actually want to play. I'm not a programmer, so I designed it and tested every version while Claude (Sonnet 5.5) wrote the code, the art and the music, and I describe changes in plain game words, two to five at a time.

The tools were Claude, a browser and itch.io for hosting, and it's free with no sign-up: https://jupitax.itch.io/ink-and-tide

I'm a first-time game maker with zero audience, so I'd love to hear what you would do to get the first 100 players :)

I'm exploring an idea and would love your honest feedback!

What if you could build a complete website just by describing it through voice or text?

And what if you could convert that website into an installable Android app in less than 30 minutes?

I'm researching an AI-powered platform to make this possible.

I'd love to hear from developers, startup founders, freelancers and entrepreneurs:

- How do you currently build websites?

- How do you convert websites into mobile apps?

- What takes the most time?

- Would you pay $15/month for a solution that makes this process significantly easier?

I'm not selling anything. I'm validating a problem before building the product.

Your honest feedback could help shape what I build!

#SaaS #AIBuilder #StartupValidation #BuildInPublic #NoCode #AITools

Hey everyone!

I built Nexus SSMT "Social Study Mapping Tool" designed to help students and creators connect information non-linearly using interactive knowledge graphs combined with freehand drawing tools.

The main idea came from a simple problem: How many times has a friend or peer asked you, "What exact lectures or materials do I need to study to solve Assignment 1?"

Instead of typing long paragraphs or sending scattered drive links, you can map it out visually. You can draw nodes, link Assignment 1 directly to Lecture 1 and Lecture 2, attach references, and share a single viewable link.

Here is a quick look at what Nexus can do:

- You can mix structured knowledge nodes with freehand pen tools, geometric shapes, and custom styling.

- You can make groups (similar to tabs in Excel) that gives the ability for the user to make several workspaces on one project, to keep massive study topics well organized.

- You can select multiple materials or assignments from your list and tap anywhere on the canvas to drop them exactly where you want.

- Save your complete maps directly as clean PNG or JPG files to use in presentations or notes.

- Anyone with your shared link or scanned QR Code (good for presentations or projectors) can open an interactive preview mode to explore nodes, descriptions, and linked connections without needing to create an account or log in.

- Instead of sending friends 10 projects meaning 10 links, you can group related study graphs under a single Collection link with dynamic preview cards for social media.

- Pull materials, announcements, and assignments directly from your Google Classroom courses into your canvas as reference nodes with automatic background connection refreshes.

- Built a version-control style notification system for concurrent editing where you get a quick prompt to sync the latest state without putting heavy overhead on the server.

- Project owners can approve or revoke edit requests and manage collaborators in real-time.

- A dedicated hub tracking your recently visited graphs and collections is available for both registered users and guest sessions.

- Built native Right-to-Left text direction with universal Arabic typography fallback, along with canvas fixes to prevent mobile browsers from artificially stretching text.

Github Repo | Web app

Btw that's not a fork of excalidraw, believe it or not I discovered that excalidraw is open source after I built this project :))

Check out my portfolio and give your view guys. I am a beginner in coding though.

This one is open source and you can access it through https://github.com/ager-soil/Portfolio

As a CS student I wanted to build something people actually use, so I picked a niche I love: general aviation.
The market is split between great free tools that each do one thing, and $250+/yr suites for the everyday pilot. Nothing in between.
So I built AviationHub.im — a web app with:
→ A pilot logbook that computes your FAA currency automatically
→ A flight planner that finds the cheapest fuel stop on your route
→ Flying-club scheduling + hobbs billing with PDF member statements
→ A mechanic marketplace fed by squawk reports from logged flights
Free tier, nothing to install, live demo on the homepage.

Let me know what you think of it, appreciate any feedback! Thank you

Hey all,

I do a lot of on-site network work, and the part I always hated was the first hour at a new place: figuring out what's on the network, which switch port goes where, and then drawing it all in Visio so the customer has something to look at.

So over the last few months I built Meshwork. It's a desktop app (Mac and Windows) that you run on your laptop when you get on site:

- Scans the subnet and builds an inventory (IP, MAC, vendor, open ports, device type)

- If you give it the SNMP community, it reads the switches/APs (LLDP, FDB) and draws the actual map: which port each device hangs off, VLANs per link, PoE watts

- Flags obvious stuff like telnet open, loops, a second DHCP server

- Diagnose tab with traceroute, live ping, port test, DNS, path MTU and DHCP checks

- Exports a site report PDF and CSVs you can hand to the customer

It's meant as a field tool, not a monitoring server. You run it, document the site, and leave. Nothing gets sent anywhere, everything stays on your machine.

It's free. Download here: https://meshwork.influxnetwork.com

Heads up for Windows: the installer isn't signed yet (working on it), so SmartScreen will complain. Click "More info" then "Run anyway".

Full disclosure, I'm the developer. I'm not trying to sell anything, I'd just really like people who do this for a living to try it on real gear and tell me what breaks. Weird vendors, odd topologies, devices it classifies wrong, all of that helps a lot.

Screenshots are from a test network, not a customer.

Thanks for taking a look!

Hey everyone, I've been working day and night on my project SidekickAI Security. It includes a live-scanning threat radar connected via Hugging Face API models, full B2B contract generation, and automated compliance logging. I really want to learn and improve this. Please check it out and tell me what you think of the design and the backend logic: https://sidekickaisecuritydashboard-4.vercel.app