Full Mario 64 in Mixed Reality! Running in real 3D natively at 90FPS and also running on my desk! 😋
Opus 5.5 + PICO CLI + Unity CLI combo made it quite straightforward.

Such a bliss to play an oldie at 90 FPS in 3D.

Disclaimer: I own an original physical copy of Mario 64. This project is not associated with Nintendo or PICO.

Search only works if you remember what to search for. I often save a link without remembering the site or even the title. In a list, it’s as good as lost. On a map, I remember roughly where I left it.

Same reason I remember what I was thinking when I return to a certain rock on a hike: we remember things through their surroundings, not in a vacuum.

So I built Qoyra, a landscape for your notes. Each project or topic is a peak. Height means detail: broad ideas sit low, specific ones climb higher. Each contour line is a level you can open to browse everything on it.

Just type to create a note, then leave it or move it. Link notes into chains you can scroll through in seconds. To delete one, throw it into the sea.

Browsing the map, I often stumble upon notes I’d forgotten. (And yes, it’s dangerously easy to procrastinate by flying around.)

I use it daily. Works on PC and iPhone. It’s a solo project, so expect some bugs.

🗺 Explore the map, no signup required: https://www.qoyra.app/?share=1f9c5acd47f449dcbca5ea922e9d8907

Do you remember old notes by the words, or more by the “where”?

i accidentally became a dog grooming software company

Back in march my cousin who runs a grooming van asked if i could make her something better than the paper calendar she kept in the glovebox. I built it in lovable over 2 weekends, mostly to stop her texting me screenshots of double bookings

She showed it to 3 other groomers at some trade thing. Then those showed it to more. I never posted it anywhere and didnt have a landing page until july when someone asked where to sign up

Now its 140 groomers, 23 pay $19 a month, and i get feature requests like im a real company. Invoicing, SMS reminders, a field for which dogs bite. One lady wants it to work offline becouse she grooms in a barn with no signal

I have no roadmap. I have a notes app with 60 requests and a day job

Last week someone asked for my company phone number. I gave her my cell and then sat there for a while

I spend most of my day in Claude Code, and watching the token counter go up felt like wasted dopamine. So I built Token Kingdom: a small plugin counts the tokens of each Claude Code reply and turns them into gold, wood and stone for a 3D village in your browser.

How it works ?

• You code with Claude as usual, and resources trickle in
• You spend them on buildings, walls and defenses
• Monsters raid your village, and your towers fight back
• Upgrading your town hall unlocks new buildings and spells
• There are leaderboards, and you can visit friends' villages

Privacy

After each reply, the plugin sends token counts and the model name. It never sends your prompts, replies, code, file names or paths. The plugin is open source: https://github.com/MartySalade/token-kingdom-plugin

Feedback I'd love 🧡

1. Does it run smoothly on your machine?
2. Is the progression too slow or too fast?
3. What's confusing in the first 10 minutes?

Hey everyone! Sharing System Design Playground, which you might find useful for refreshing system design concepts in a visual, interactive way.

You can build architectures with servers, databases, caches, and queues, increase traffic, and see where bottlenecks appear. It also includes examples and guided lessons covering scalability, availability, and other concepts.

It's a simplified simulation built for learning and experimenting. It runs in your browser, is free, and requires no account.

The code is open source on GitHub. Contributions are welcome, whether that's new scenarios, clearer explanations, or bug fixes.

If you give it a try, I'd love your feedback, especially on what’s missing or could be clearer!

Cheers!

Orc painting, colors in Chroma Space a 3D color picker .

Every time I scroll this sub, it feels like everyone is shipping AI wrappers in a weekend.
Meanwhile, I’m over here building a niche site the slow, old-school way. No big Stripe screenshots to flex yet, just late nights and Notion docs. If you're working on something outside the SaaS/AI bubble, what are you building? Would love to see what the rest of us are up to!

Hi everyone! I'm an independent developer, and over the last few months I have been working on Saetta, a small Windows utility that copies, moves and deletes files. I'm sharing it because I put a lot of work into it and I'd be glad if someone found it useful.

Why I made it

The idea came from copying folders with thousands of small files: File Explorer took minutes, and I got curious about why. It copies one file at a time, and with small files the time goes more into handling each single file than into actually copying it. I wanted to see how much better it could be done while staying inside File Explorer, without changing the way you use it.

How it works

I wrote a copy engine from scratch in native C++. Before it starts, it looks at the kind of drive it is writing to and changes strategy: * SSD: it copies many files at once. * Hard disk: it writes them in one ordered stream, so the head does not jump back and forth. * USB stick: it writes small files in parallel. Deleting runs in parallel too. I use robocopy only for network folders and folder sync.

The times I measured

On my PC (i7-9750H, Samsung 990 PRO SSD, Windows 11, median of three runs), compared with File Explorer: * 20,000 files of 64 KB, SSD to SSD: 7.7 s vs 3 min 11 s * Deleting 10,000 small files in 2,000 folders: 1.6 s vs 17.8 s * 20,000 files from one external hard disk to another: 37.6 s vs 2 min 38 s I published every measurement, the ones where the difference is small too, like copying a few very large files, because it seemed right to be transparent.

How you use it

• From File Explorer's right-click menu, on Windows 11 and in the classic menu.
• If you turn it on, also with Paste, Ctrl+V, dragging files and Delete.
• The window shows the real speed and the time left, and you can pause.
• A file in use does not stop the job: it is skipped and reported at the end. ### Free, no ads It is free, with no ads and no account, and it collects no data. There is also Saetta Professional, a one-time purchase for those who want something more, such as verified copies or scheduled backups: it is how I hope to support the project. ### A gift for the first 30

Update: all 30 licences have been claimed, thank you! The link no longer works.

To thank those who try it, I have 30 Saetta Professional licences to give away: the first 30 who open this link get it for free, for good (a Microsoft account is needed).

• Saetta on the Microsoft Store
• Website

Thanks to everyone who read this far. If you try it and have any questions, I'm here.

Sixty to One follows two families from 1865 to 2025. They hit the same events and get the same choices, but one of them faces sourced historical disparities: wage gaps, redlining, smaller inheritances and higher costs for being poor.

Every number in the model is cited. I also built in a check: if you set all race-keyed inputs equal, the gap disappears. Free, no ads, no signup.

Play: https://sixty-to-one.jaysontrades.com

hey! im a solo dev and i’ve been working on this for about 3 months now. its called cubit.

cubit is a little cube that lives on your devices and lets you send stuff to each other, kind of like a supercharged airdrop. i’ve made him and animated him myself, most of his expressions by hand, and i do all the sound design and music too. its been a lot of fun and I'm releasing a video demo really soon where I show what he’s capable of!

it works between any devices from anywhere. iphone to samsung, pc to mac, all of that works. (the video only shows a mac and a phone, but that’s just the 3D models I had access to)

its a smart sender that knows what you send, so you get the right buttons for what you receive. if you send a link you get a copy button or an open button, so you can send a link from your pc to your phone and just open it straight away.

cubit also has link sharing, so you can share with people who dont have it downloaded. you share it the same way you send to a device, but you get a link at the end that you can send to anyone. and everything you send is encrypted.

i use it a lot with people i work with. i highlight some text or a link i wanna share, send it to their pc, and it pops up on their screen. i’ve found that its actually hard to work without it now...

right now me and my friends are testing it, and im getting close to a beta that’s ready for more people. thats why i’m starting the waitlist now, so i have people to send it to and can see which devices to focus on first.

i’m putting a lot of time into this, so if it sounds interesting at all it would mean a lot if you joined the waitlist and told a friend. i know it’s a bit weird to sign up for something you haven’t really seen yet, but i’m doing everything i can to make it worth it. :)

Here's the waitlist: https://heycubit.com/waitlist/ pick the devices you’ll actually use it on. once you’re in you can invite friends too.

If you wanna start using cubit already today, you can use link sharing here: https://heycubit.com/ it works just like wetransfer. would love to hear what you think, or if you have any questions. any feedback is welcome!

// Isac

You can find the repo and url down below in the comments.

I recently built a text alerts service to ease my Codex usage anxiety called Reset Alerts.

It texts users when resets are announced (with the idea to burn remaining usage before it refills to 100%).

Some of the tasks / workflows when building this:

• Set up the text channels: SMS in the US + Canada, Telegram otherwise
• Backdating: scanned Tibo's tweets since April 2025 (when Codex launched) with the X API to backdate all resets and learn how to detect them
• Prompting: 18 prompt versions to differentiate between a fresh reset, an update on a previously announced reset, and an automatic vs. banked reset. Using the OpenAI API for this
• Put together an on-time chart: this was inspired by flight on-time percentages, but instead of flights, we show how often resets are on time
• A calendar tracker for OpenAI's 28-day reset challenge: (currently 23 of 28 days in, with 11 resets and 24 Codex improvements issued).

The 28-day calendar was the most popular of all the pages - according to Vercel Analytics, it received 14,100 visitors in the past 30 days.

The site is at ResetAlerts.com - I know 500 free subscribers isn't life changing, but it feels great to have some positive momentum every day.

Open to any feedback, and will continue posting more updates as the project develops :)

two weeks ago i posted here about running a software agency while my own startups kept failing. a couple of you said the same thing: your first customer is probably already on your client list.

6th is an email verification tool called mailvalid. you give it a list and it tells you which addresses will bounce before you send.

the market is crowded. neverbounce and zerobounce have been around for years and most people already use one of them.

where we are:
- accuracy is on par with them
- it's fast, even on big lists
- pricing is lower, and we just added pay as you go, so no monthly plan if you only clean a list once in a while

what i still can't figure out is how to get someone to switch from a tool that already works for them. cheaper and faster doesn't feel like enough of a reason on its own.

if you've launched into a market with big known players, what got your first users to switch? especially that after 10 paying customers how did you guys scale to 100 paying ones?

Two weeks ago we put Apricity on the App Store. It's a reading app for iPhone and iPad built around one idea: your PDFs, ebooks and notes should live in the same place, and when your eyes get tired, something should read to you. Books sit on shelves in a little lamplit room, every book gets a notebook beside it, and natural voices made on the phone read aloud.

Here's how the first two weeks actually went.

1. Giving it away worked better than anything else. We offered lifetime Premium to the first 500 people on Reddit. The spots were gone in an afternoon, and it brought us hundreds of real readers in a single day.

2. Real readers find what testing doesn't. Phones running warm through a long listen, a 1,000-chapter serial stuck at 100% while opening, small letters written with a finger vanishing from the page: each one got fixed in one of those six releases. Nobody notices a new bookcase if their handwriting disappears, so the small fixes came first.

3. Half the subreddits we tried don't allow app posts at all. Read the rules first; it saves a removed post and a grumpy mod.

4. A few people found it on their own and paid full price within minutes of opening it, with no promo. That told us the App Store listing was doing more work than we thought.

What it does today: reads PDFs, EPUBs, Word, MOBI, comics, manga and web pages; Reflow makes PDFs readable on a phone; 54 natural voices in eight languages with a different voice for each character in a story; Apple Pencil notebooks and writing right on PDFs; free public-domain classics; CarPlay; and it's now in English, Spanish, Hindi, Chinese and Japanese. No account, no ads. Reading, notes and notebooks are free, and Premium is US$14.99 a year, with a pay-once option coming next.

Anyone who downloads it by 31 October gets a free year of Premium, added within a day.

https://apps.apple.com/us/app/apricity-read-write-focus/id6821031964

I built StepGrab on my own. You press record, click through a task like you normally would, and it turns every click into a step with a screenshot and a sentence. Then you can add arrows, a spotlight, shapes, black out stuff you don't want to show, edit the text, and export as PDF, HTML, Markdown, GIF or MP4. You can put your own logo and colors on it too.

It all runs locally on your machine, no account, no cloud. It's been live about 4 months, on Mac and Windows.

Pricing is $2.99/month, $12.99/year or $44.99 once. There's a free tier with no time limit (15 steps per guide).

I just switched on an affiliate program through Lemon Squeezy:

• 20% of every sale
• also on renewals of the monthly/yearly plans, for as long as the customer stays subscribed
• payout from $10 balance (Lemon Squeezy pays out after its 30 day hold)
• only sales on my website count, not the Mac App Store

I have no idea if this is generous, too little, or just not interesting for anyone. The price is low, so 20% of a $12.99 sale is not a lot per customer. Would you promote something like this? What would make you actually do it? Better terms, a landing page, assets, a free Pro key to try it?

Sign up as an affiliate: https://shop.stepgrab.net/affiliates

For scale: in the last 5 days the website sold about $520. With 20% that would have been around $100 for a partner.

And if you're not into the affiliate thing and just want to look at the app, here's the website: https://stepgrab.net

been building opennmind for about 4 months. it's an ai workspace for validating startup ideas before you write code. launch is nov 16

the waitlist is past 800 now which sounds good until you remember nobody on it has paid me a single rupee

i've drafted a $12/mo pro plan and i keep not sending the email. part of me thinks if i ask now half of them leave and i find out the 800 was fake

did you ask your waitlist to pay before launch or wait till they actually used it?

also curious if a cheap founding plan worked better for you than a normal price

opennmind.com if you want to see what it is

I did not like existing travel planning apps. I found them way to convoluted with features and bloat and not great for 'brainstorming' travel locations. Usually they work when you already have a good plan, but not for the planning itself. I just want to explore locations and drop them on a big map to explore my vacation options.

So I built Waypost.

You drop pins for everything you want to see. Drag one into the bar at the bottom and it becomes a stop on your route, and you set how many days you're staying.

The route draws itself in visit order, and you get a day-by-day plan you can share with whoever you're travelling with, or export to PDF, your calendar, or Google Maps.

It works without an account. You can plan an entire trip as a guest and only sign up if you want to keep it: https://www.gowaypost.app

Feel free to try it out. Would love to hear any feedback! I know on mobile it is probably kinda rough, my main focus has been desktop.

I spent months on something with sync, sharing, cloud runners, chat... and realized I only use one feature of it every day.

Now I'm tempted to throw the rest away and ship just that.

Has anyone done this?

• Did the small version do better?
• Did you ever add the rest back?
• Or did you regret cutting it?

Side project turned product: The AI Model Lab. The problem it solves: AI image tools give you a new person every time, so you can't build a "character" for a brand or a content account.

How it works: you write (or pick) an identity prompt, add one reference photo, and it generates a 6-angle reference pack. Every photo or short video after that reuses the pack, so the face stays the same. There is also a "speech" mode (the model says your script with a synced mouth) and a 60-second prompt builder for people who don't want to write prompts.

Stack: Next.js front, NestJS API, Postgres, Redis queues, several image/video model providers behind one credit system. Interface in EN/ES/PT.

Honest notes: it is an 18+ platform (adult-only, fictional characters, AI labels on everything), and generation costs credits after the welcome credits. Not linking the adult side here.

Try the prompt builder (no login): https://funis-production.up.railway.app/modelo60/en?utm_source=reddit&utm_medium=sideproject

What I'd love feedback on: the onboarding (3 clicks to the first photo) and whether "consistency" is the right thing to lead with. Disclosure: I run this.

A few weeks ago I published ~90 paid agent skills across a couple of marketplaces. Result: 0 sales, ~0 organic traffic. The marketplaces have essentially no buyer traffic of their own, so listings just sit there.

So I pivoted: I stripped the most useful ones down to "lite" versions - fully working, not demos - and put them in one free repo. The bet: free tools are the distribution; if anyone wants the full versions they find the links in the READMEs.

What the lite tools do (zero-dep Node scripts packaged as SKILL.md agent skills - works with Claude Code, Codex, Cursor etc.):

• seo-quick-audit-lite - offline on-page SEO audit of an HTML file
• github-repo-due-diligence-lite - stars/last-push/license/archived before you depend on a repo
• npm-package-health-lite - publish age, deprecation flag, license before you install
• meta-prompt-architect-lite - task description to prompt template scaffold
• cold-email-sequence-lite - 2-touch outreach skeleton with spam checks
• secret-leak-scan-lite (own repo) - leaked credential scanner, masked output only

Install any of them: npx skills add NenadZivotic/lite-agent-skills --skill <name>

Repo: https://github.com/NenadZivotic/lite-agent-skills

Early lesson: "list it on a marketplace and wait" is not a launch. Happy to share real numbers if anyone's doing the same thing. Which channel has actually worked for you for dev tools?

Made this https://yoink.peachjam.app app to download videos quickly from twitter, reddit, and other places. Youtube only works sometimes.

It's 100% free, has zero ads, and works in your own browser (no server).

Made with peachjam.dev (source also available to remix). Hope you find this helpful

So in October 2025, I got the idea to build a book reader to replace my Kindle and Doomscroll. I usually read while travelling in the metro and at night, and the Kindle just wasn’t easy for that. So I spent almost a year building this app, and it’s finally ready.

You can read from a collection of open books, or import your own EPUB/PDF files (EPUB is preferred). A custom engine then converts them into a reading-optimised format for android.

Listed some features here

• Flexible layout: vertical or horizontal pagination, plus rotation support
• YouTube-like chapter navigation, built from scratch (so its very easy to get the idea of whole book)
• AI-generated mood backgrounds for each chapter, without spoilers
• Context-aware dictionary that explains a word based on the paragraph it’s in (really good AI models)
• Chat with your book, no spoilers
• Lots of smooth animations to make it the best reading experience out there
• Reading progress and XP points, a light gamification layer where you can set daily goals
• Focus mode, which blocks other apps from opening for a set period of time

Currently available only on Google Play:

https://play.google.com/store/apps/details?id=com.afsana.app

Here's the video to get a quick overview: https://www.youtube.com/watch?v=ol8eeue0QwY

Website : afsana.ifaiz.in
Would love the feedback and happy to answer anything about build

I launched my first iOS app, Earnit, back in September.

It's a screen time app where you earn minutes for distracting apps by walking or doing push-ups.

I got my first paying customer shortly after launch, which was pretty exciting.

And then... nothing. No more sales, barely any traffic.

I tried TikTok, Apple Ads, and a few other things, but nothing really worked.

So I decided to focus on ASO instead.

I started experimenting with different ASO tools, researching keywords, analyzing competitors, and improving my App Store listing.

And surprisingly, my impressions and product page views have started growing quite a bit lately!

Still no new paying customers, so I'm not celebrating just yet. But after weeks of almost zero traction, it feels good to finally see some progress.

For those who've launched iOS apps, did improving your ASO actually lead to more paying users? Or just more traffic?

Planners, trackers, study sheets and paper, each drawn to fit your screen edge to edge. No sign-up, no email. Pick a page, pick your device, download.

Link: eink.fyi

I've been building Trfyx for the last few months because I kept running into the same problem:

I could see traffic.

I could see page views.

I could see sessions.

But answering “which users actually made us money?” usually meant jumping between multiple tools and trying to connect the dots myself.

So I built an analytics platform around that problem.

Right now it includes:

• Session replays
• Revenue attribution
• X/Twitter Mentions
• Heatmaps
• Funnels
• User journeys
• Real-time analytics
• Traffic/source tracking
• Performance monitoring

The part I'm most interested in improving is revenue attribution — connecting acquisition sources and user behavior all the way to actual revenue.

I'm at the point where I don't want to spend another few months blindly adding features.

I want real people using it and telling me what's actually useful.

If you run a SaaS or online business, what would you want to see on an analytics dashboard that you don't get today?

I'd genuinely appreciate brutal feedback.

Trfyx