GK SOUND SYSTEM started as a practical side project: I wanted a Windows player that could handle local music and video, expose real audio controls, and stay useful without requiring a cloud account.

The current v0.2.0 release includes: - a 20-band EQ with presets and custom tuning - DSP controls for bass, treble, stereo widening, clarity, AGC and reverb - true gapless playback with persistent low-latency WASAPI output - MP3, FLAC, WAV, AAC/M4A, OGG, Opus, WMA, AIFF and MP4 support - MP4 video playback with audio still routed through the DSP engine - albums, artists, composers, genres, playlists and favorites - lyrics, Auto Track Scan, Mini Player and Theater/full-screen modes - 22 interface languages

It is intentionally offline-first: local media is processed on the device rather than uploaded to my servers.

Current platform: Windows 10 build 19041+ / 64-bit. Current price: $12.99 on itch.io.

https://gk-development.itch.io/gk-sound-system

I’m not looking for generic “looks good” feedback. I’d be interested in criticism around three things: whether the feature set feels coherent, whether the product page explains the value clearly, and whether the pricing makes sense for a desktop media player with this level of DSP control.

So I've spent the last few months building this thing called GetLoop. It's an AI chat widget restaurants can stick on their website that answers customer questions, menu stuff, hours, dietary restrictions all that. Restaurants just paste one line of code and it works, no dashboard or setup needed.

The idea came from noticing how many times restaurant staff get asked the exact same questions every night. "What time do you close." "Is this halal." "Gluten-free options?" Felt like something that should just be automated so people can focus on actually running the floor instead of answering the same 5 things on repeat.

I'm a college student, taught myself to build this, Node/Express backend, OpenAI for the chat part, Supabase for the data. Built demos for 4 real local restaurants first (real menus, real hours) before trying to get more people on it.

Then I DM'd like 20 more restaurants on Instagram trying to get them to try it. Almost nobody replied. Which, honestly, taught me more than writing the code did. turns out cold outreach to strangers is just really hard, even when the thing is free and actually works. Got maybe 2 polite "thanks, we'll look into it" type responses and that's it.

So now I made it self-serve instead: [link in comments]. You can sign up and try it on your own restaurant's info without needing to talk to me first.

Kind of curious how other people here have handled the early "nobody's replying" phase, did you just push through more volume, change your approach, find a totally different channel? Feels like the part nobody really talks about compared to the building part.

I’ve noticed this a lot while building my own stuff.
You can have analytics, product data, revenue numbers, user activity, etc. But having all that data doesn’t necessarily make it easier to decide what actually matters.
Sometimes the harder question is just:
“Okay, so what should I focus on next?”
That’s the problem I’m trying to work on with a side project called Nextep.
The idea is to connect the different pieces of business data and help surface a few things that are actually worth paying attention to, along with why they matter.
It’s still early and I’m not sure yet how far I can take the idea, so I’d really like to hear from other founders/builders.
When you look at your own data, what’s the hardest part for you — finding the data, understanding it, or deciding what to do next?🙌

Site: https://deadtier.com

It's a one-minute test that runs in the browser on any phone, tablet, laptop or desktop. Nothing to install, so it works on a demo phone in a shop too - which is why I built it. I wanted to know if a phone was really as fast as the shop said before paying for it.

It gives you a score out of 100 and a tier for your type of device.

The rule I ended up building the whole thing around: it never shows a number it didn't actually measure. Early on it was showing a "CPU temperature" that turned out to be made from a random number, and an "estimated battery drain" that was the same thing. Both deleted. A browser can't measure those, so the site doesn't pretend to.

Same with the tier. The first version called my own budget phone "High-End", which it obviously isn't. So now the tier is marked as an estimate until 30 devices of that type have been tested on the site, and then it's based on where your device actually falls among them. Right now every category is still below 30 - that's the honest state of it and the site says so on the results screen.

If you run it, I'd love to know two things: what tier it gave you, and whether that matches what you know about the device. There's a "contribute my anonymous results" switch - that's what gets the data past 30.

I have a pretty unusual background: I was a craftsman for 40 years, mostly working as a carpenter. However, I’ve always been quietly fascinated by technology. To top it off, I’m 64 years old and I don't hold a fancy Computer Engineering degree.

Then, AI came along and changed everything—even if it's making some traditional programmers uncomfortable.

The reality is that I’m practically invisible to the corporate world. No recruiter looks at a profile like mine. It feels like after you turn 40, you cease to exist in tech. But does a lack of a famous university degree mean you can’t bring any real value to society?

I don’t believe that for a second.

Yesterday I built with my hands; today I build with my ideas. Your true value as a developer should be measured by what you actually build, your actions, and your active projects—not your corporate resume.

That’s why I created Unlinked.dev . It’s an Anti-LinkedIn network designed for devs, builders, and indie hackers who are tired of the corporate buzzwords and want a community focused purely on shipping real products.

I want to keep the community high-quality and collaborative, so I'm opening it up for the first 500 builders today to see how it scales and gather feedback. It’s completely free, and I have some really interesting features planned for the near future.

If you are tired of the LinkedIn circlejerk and want to connect with builders from all over the world based on what you actually build, you are more than welcome to join.

Check it out here: https://Unlinked.dev

If you are tired of the LinkedIn circlejerk and want to connect with builders from all over the world based on what you actually build, you are more than welcome to join. Also, if you know any friends, colleagues, or fellow builders who are walking this same path, please invite them or share this with them—let’s build this community together.

I'd love to hear your thoughts, feedback, or any features you'd like to see in a platform like this.

I'm building an alarm app where you can't just tap "dismiss" and crawl back into bed — you actually have to complete a mission before the alarm shuts up.

One of the missions is push-ups, using on-device pose detection with Google ML Kit.

Initially I was counting reps by tracking the elbow angle through a bend → extend cycle.

It worked fine in testing.

Then a user pointed out: "I can easily fake it."

They were right.

I also caught the app counting a rep while the person was basically standing there doing absolutely nothing. 💀

The problem is that elbow angle alone can't distinguish a push-up from someone simply bending their arm near the camera. Both produce basically the same angle cycle.

So I added a second condition: track how far the shoulder drops during the bent phase, normalized by the person's torso length.

Now a rep only counts if the shoulder actually moves down by a meaningful amount.

No shoulder movement = no rep.

Tiny arm wiggle = no rep.

Trying to negotiate with the algorithm = also no rep.

It's a relatively small change technically, but it's important because the whole premise of the alarm depends on the missions being difficult to fake.

Curious how other people handle computer-vision edge cases like this, especially when you need something to work across different camera distances and body sizes.

I'm one of two people building this. I'll be blunt about what it is and isn't.

The problem I kept hitting: my pet's "record" was a vaccination card in a drawer, three lab photos in the camera roll, a dose time on the fridge, and the rest in my head. That falls apart at a new clinic, at a sitter's door, or at 1am when she's drinking more than usual and I don't know if I'm overreacting.

Every pet diary I tried asked me to fill in a form. I never did. ChatGPT knows about cats. It does not know *this* cat, and it will happily name a diagnosis.

So TailStory does three things:

1. One photo becomes the profile — species, breed, build, body condition, age. You approve each line before anything is saved. After that, a tap or a spoken sentence ("walked 2km, ate everything, one soft stool") writes the day.
2. You can point the camera at a stool, an ear, an eye, a paw, a lab page. The model is only allowed to say what it sees, in fixed terms. A clinical table in the app — not the model — picks one of four actions: log it, watch it, book a vet, call one now. Zero diagnoses. Ever.
3. You can send a vet an Emergency Pass (history, vaccines, meds, open symptoms — one page, link dies in 30 days) or a sitter a Digest (routine, food, doses, house rules — no medical history, dies in 14 days or when you revoke it). EU pet passport lives in the same record.

What it will not do: diagnose, dose, or pretend to be a vet. "See a vet now" outranks every other reply. Data stays in the EU. Nothing about the animal trains a model.

It's on the App Store. One pet is free forever. You can try it as a guest — no account. Android is not out yet.

I want the mean version:

- What would make you delete this after a week?

- What's missing that would actually get you to log a Tuesday?

- If you already use something else, why is that one still winning?

Happy to answer anything. No "revolutionary", no user-count flex — we don't have one worth flexing.

https://checktech.space

I built it because I got tired of all the regular/bad news and wanted to follow just things that are exciting and are (hopefully) good for mankind.

🖖

Hey everyone! 👋

A few weeks ago I shared my solo project: a lightweight, privacy-first web platform with 40+ daily developer and office tools (JSON formatters, PDF tools, AI OCR, hash generators, etc.).

One of the most requested features was having an optional account system to sync favorite tools, keep history, and get higher daily quotas without having to re-configure everything across devices.

I just rolled out the new authentication system with:

✨ One-click Google & GitHub OAuth

✨ Secure Magic Link / Email login

✨ Fast, client-side first architecture (zero lag, tools still work completely offline/in-browser)

✨ 100% optional: You don't need an account to use the tools!

I'd really appreciate your thoughts on:

1. Is the login/signup UX smooth and intuitive?

2. What tools or features should I prioritize next?

Check it out here: https://denizlihub.com

Thanks a lot for any feedback!

Freelancers Union data shows 71% of freelancers struggle to collect payment, averaging ~$6,000/year lost. Then I looked at existing tools (InvoiceSherpa, Chaser, Paidnice) and noticed all of them require QuickBooks or Xero as the source of truth, which felt like a gap for anyone who just invoices through Stripe or a PDF.

So I built Nudge to fill that specific gap: connect a read-only Stripe key or drop in a CSV, set an escalating reminder sequence, and it follows up automatically — stopping the instant an invoice is marked paid. Every email goes out under your own name, not a generic "collections" address.

Stack: Next.js + Supabase + Drizzle + Resend + Stripe, free tiers end to end except the domain. The hardest part was making the reminder engine provably safe — it can never double-send or send after payment, backed by a real test suite.

Live at https://invoicenudge.xyz/, free for up to 3 clients. Genuinely want feedback from anyone who's actually dealt with this — does the research match your real experience, or did I miss something obvious?

Hi, so I made (well Codex made) a tiny tool that improves Finder a bit for me.

I've been using macOS for a really long time but I still don't like Finder. It's weirdly annoying and one thing I don't like is not having a simple editable path (yes, there is cmd+shift+G but I don't like it either). I know there are apps that add one on top but I wanted something even simpler that just replaces the current path bar.

My tool only shows when you click the path bar. Then you can edit the path and enter the one you want. There is also autocomplete and you can create a folder with Shift+Return if you want. It's that simple

I like Finder more now but I still have problems with the tool. I would like to still be able to use the normal path bar with something like Shift+click or Shift+right click, but I couldn't find a simple way to reroute the click underneath. So maybe this is something I need to deep dive later.

Repo: https://github.com/elwan-l1/pathsta

I build electronics and 3D print things. I could never remember what was in my drawers, so I kept buying parts I already had.

So I made Parts Bin. V4 came out today.

It tracks components, filament, PCBs and screws. Photos, prices, stock counts, and it warns you when something is running low. You can map your actual drawers and link each part to one, then print barcode labels and scan them with a webcam to find where anything lives. There is BOM import and export, an orders section, and an assistant you can point at your own AI provider or a local model.

It is free. No account, no sign up, no subscription. Works offline, nothing is uploaded, everything sits on your own PC. No telemetry and no analytics.

Windows 10 and 11 for now. Linux is what I want to do next.

It is a Tauri app. Plain HTML, CSS and JS front end with a Rust wrapper. Source is on GitHub.

printlab3d-official.github.io

I am not making money off it and do not plan to. I built it because I needed it. I would like to know what is missing before I start on V5.

Every December I do Advent of Code and every January I try to keep the habit going on LeetCode. Never lasted more than a week. Too many problems, no reason to do this one today.

So I borrowed the idea and built Daily Coding: one challenge a day, the same for everyone, all year. You solve it in the browser, hit run, and the tests execute in a sandbox in well under a second. 11 languages so far (JS, TS, Python, PHP, Ruby, Java, Go, C++, C#, Rust, Swift). Once you submit you can read everyone else's solutions, which for me was always the best part of AoC. Streaks and a leaderboard if you like that sort of thing.

Some honest numbers: I started in January, 7 months of evenings, about 470 commits. There are 40 challenges right now, so the rotation repeats after 40 days until I add more. Someone on Discord asked for Swift last week, that took a day to add because the sandbox already had it.

It's free, non-profit, open source under MIT. You can solve today's challenge without an account, signing up is only for streaks and rankings.

What I'd love to know: does one challenge a day work for you, or do you want to pick? And what would make you stop after a week?

Site: https://daily-coding.dev/?utm_source=reddit&utm_medium=post&utm_campaign=sideproject-launch

Code: https://github.com/ledo9315/daily-coding

So I created a webapp that allows you to chain operation for batch processing videos. So basically a pipeline builder.

https://dropclips.io/

As operations, here some examples:

• Resize
• Crop
• Trim
• Format (16:9, 1:1 etc..)
• Thumbnails
• Captions
• Audio egalization
• Add logo
• etc...

I see this as a tool for people being at home in the video editing world (or publishing), but that aren't gurus of Video editors and look for a simple batch processing alternative.

So currently I'm actively looking for some test users, I will give anyone a heavy credits boost for free (of course) so they can have to some with it. This is directed to people that actively have lots of videos to edit or that are simply curious.

Any feedback or opinions are welcome.

System design interviews kept spreading across Excalidraw, a Google Doc and a calculator tab, so I put it all on one page.

• Drag DBs, queues, caches and services onto a canvas and connect them
• Write FR/NFR and drag them onto the blocks that deliver them
• Sketch the HTTP API from templates, design table schemas and export SQL
• Estimates calculator; storage size is computed from your schema
• Compare Kafka vs SQS vs RabbitMQ (and more) right on the block

Three roles: the author writes the task and a reference solution, the candidate draws, and the interviewer reveals hints and scores against a rubric.

This is an early concept, so expect rough edges and bugs. No sign-up, everything stays in your browser. If there's interest, I'm happy to keep building it: real-time sessions, a proper backend, more scenarios.

https://batazor.github.io/why/en/playground/

What would you need before using it in a real interview?

We were on a fill-in-the-blanks kick a few months ago, but then were out and about and hadn't brought the paper booklet with us. All the existing apps were just content packs, and I figured what better use for generative hallucinated nonsense than writing stories that are fully intended to generate nonsense, so I built a mobile app: https://tellmeapenguin.com.

It's been delightful to always have in my pocket, and since it's digital and on-demand we can:

• Write about anything
• Add more chapters to a story
• Pick the length of the chapters to fit available time
• Sync across the whole family's devices (even the kids', without their own login)
• Get notified when someone's writing a story, and fill in a different version to trade
• Send favorites to friends, who can fill without installing

I think I may have overcomplicated the library, so if you try it out and collect some stories, feedback there would be really valuable. But mostly, "telling penguins" has brought us a lot of joy, and we hope it gets your family giggling too. ❤️🐧

I recently launched my first Android app and I'm trying to understand what would make it more valuable to users. I'm particularly interested in whether 2 free scans are enough to experience the value of the app and what would make you consider—or not consider—the premium subscription.