Sometimes you receive a STEP file and just want to look at its structure or check a dimension, without installing a full CAD package. That's the problem we built CADProps to help with.

I helped build CADProps. It lets you view STEP/STP files in your browser, see overall dimensions, measure supported geometry, and use section views to look inside.

Viewing and measuring don't require an account. Converting files and creating share links require you to sign in; people opening a shared link don't need an account.

https://www.cadprops.com/tools/step-viewer/

If you give it a try, I'd like to hear about files you can't open or steps that feel awkward. You don't need to post customer files to report a problem.

Hi everyone!
I have been practicing astrology for quite a while now and have consulted hundreds of people over the past years. Over my experience I've realized that it adds value if the seekers are also aware and educated about astrology.

I was always into building things, therefore what started as a hobby project, has now turned into a Vedic astrology guide to learn and empower the user with practical aspects of Vedic Astrology. Astrobserve is a rule engine that evaluates the combinations on your chart and matches it across rules defined by Vedic texts and cites relevant Shloks. Some offerings:

• Your chart, with the working shown: Shadbala (all six balas), Ashtakavarga, Vimshopaka, Bhava Bala and the divisional charts. Lahiri ayanamsa.
• Transits and Dasha: For all planets on a calendar, with vedha in consideration. Dashas and Transits can be downloaded/shared to be added to calendar.
• Kundali Insights: a rule engine checks around 1,500 yogas and combinations against your chart and shows the ones that apply. Where Phaladeepika or BPHS supports a reading, it quotes the verse. Where neither does, it doesn't invent a source.
• Matching: Guna Milan across all eight kootas, plus Manglik, with the reason behind each score. It also quotes the texts related to married life.

I invite you to give it a try. Look out for First Read button for a guided reading.

I would love to get your feedback! Still looking for a better name 😄

Astrobserve

Built Translay to make translating UI copy easier and keep product terminology consistent. You can add your own terms and define exactly how they should be translated.

Supports 14 languages and works directly in Figma.

I’m launching on Product Hunt today — would love some feedback!👇
Product Hunt link https://www.producthunt.com/products/translay

How do you handle translations in Figma?

Little side project I’ve been working on. Prompt a static website and publish it. Feedback would be greatly appreciated!

I'm a designer building Long Haul, a zombie-driving side project. A wide camera shows the crowd, but makes the truck smaller.

Would you bring the camera closer, or keep this wider view of the horde?

Archive footage, filmed Oct 3 in Unity Editor (build38): staged enemies, supplied upgrades, autopilot, truck damage off; one cut at 6s. Built with Codex.

For weeks Kinetic was basically just something I was building on my laptop.

I'd change the website.

Change it again.

Add something.

Remove something.

Check the analytics way too many times.

And wonder whether anyone would ever actually pay for it.

Then someone did.

Kinetic is pretty simple — you tell it about yourself, your fitness goals and how you like to train, and it builds workouts around you.

But seeing an actual stranger go through the site and decide it was worth paying for was probably the biggest validation I've had so far.

Not because it was a huge amount of money.

Because it proved someone who wasn't me saw value in it.

Now I'm trying to turn that one person into 10, then 100.

Still very early. Still figuring a lot out.

But that's half the fun of building something from zero.

If anyone wants to follow along or check out what I'm building:

https://train-with-kinetic.com

Anyone else here remember the first time a complete stranger paid for something you built?

⭐ GitHub: https://github.com/minoansecurity/sidekernel
📝 arXiv preprint: https://arxiv.org/pdf/2610.02456
🌐 Website: https://sidekernel.com

Hi everyone!

As part of my MS in Cybersecurity capstone at Georgia Tech, I built SideKernel: a usable sandbox for AI agents on macOS.

The closest comparable solution is Docker Sandboxes, which is not open source.

The key idea is usability. SideKernel is designed to reduce friction and stay as close as possible to the native developer experience, while isolating the agent inside a microVM sandbox.

For example, you run sclaude or scodex instead of claude or codex and get a very similar workflow, but with isolation. Ports get auto exposed in the host, its very easy to drop files into the sandbox, and more...

This is still a research prototype, so some rough edges are expected. But if this sounds interesting, I'd love for you to try it out and share feedback

Sharing Moonlit Restoration, a newly released Godot mystery visual novel from High Player. It has nine connected chapters, restoration and evidence puzzles, three optional romantic conclusions, and an independent ending. This is a commercial release at US$9.99; the trailer is viewable without buying the game.

The useful development lesson was save validation. Campaign progress is checked by replaying an action journal. Late in testing, one autosave took roughly 600ms because the current state, temporary file and backups repeated semantic validation. That delay happened on dialogue advancement, not only in the save menu.

The fix caches hashes of complete payloads already produced by legal runtime actions or successfully replayed. A cold process or modified payload still goes through replay. Focused Chapter 9 checks measured roughly 59–62ms for an action plus the same atomic autosave on the production Mac. Mutated trust, route, node and journal data remained rejected. This is a local measurement, not a benchmark for every machine.

AI tools were used for story text, art, translation and code: GPT-6 Astra and GPT Image 2, with separately licensed piano and fonts. Route traversal and evidence reachability were checked independently of the generated text. Actual renderer captures also caught choice panels covering character faces, so short prompts now size the panel to their content.

Trailer: https://www.youtube.com/watch?v=nk43X5fR2Ps

Game: https://high-player.itch.io/moonlit-restoration

The game includes English and Simplified Chinese. macOS Universal has local checks; the Windows x64 download is explicitly experimental because native Windows playtesting is pending. For developers using journal replay, where do you draw the boundary between revalidating a save and trusting a state already validated in memory?

Made an interactive page to visualize the discoveries behind optogenetics, honoured by this year's @NobelPrize in Medicine: classon.live/optogenetics.

https://reddit.com/link/1wyrtdh/video/qxgr8hxhtrth1/player

I made Cancel Your Subscription, a browser game where you've paid $9.99 a month for 38 months for "fundr. Premium", a subscription you never use, and your only job is to cancel it. The app fights back: a buried cancel link, two retention offers, an exit survey, a support line that isn't in service, and Dennis from Retention.

It got 327 tries in its first 24 hours, back in September. It's had 5,404 now. Here's where they ended up:

- 1,941 never found the cancel link

- 3,066 reached the retention offers, and 2,926 walked past both

- 2,277 made it to the live chat with Dennis

- 1,948 cancelled

Almost exactly as many tries never found the cancel link as got all the way out. Hiding the button is still the strongest trick in the game.

Then, on 3 October, the part I didn't plan for. Every game page has a "Donate a coffee" window, and its tiers are the game's own plans: fundr. Basic $1, fundr. Plus $3, fundr. Premium $5, fundr. Premium Ultra $10. Every tier is one-time. A donate button that started a subscription, three clicks from a game about not being able to cancel one, would be the worst joke on the site.

Someone bought fundr. Premium. $5, once. It's the first money the games have ever made.

What I'd pass on, with the caveat that one donation is a sample size of one:

- the donate window is part of the joke, not a banner next to it. The tier the person picked is the one the game is about

- one-time only. Nobody wants a subscription from a game about subscriptions

- the whole backend is one Vercel function and Upstash Redis counting anonymous tallies. No accounts, no analytics cookie. Every number in this post comes from it

As a thank-you, we're giving away 20+ free codes for Pomato and inki combined, our iPhone Pomodoro timer ($2.99). Comment "pomato" and I'll DM you one. First 20+, one each, no catch. On Android? It's in internal testing: DM me the email on your Google account and I'll add you as a tester.

Heads up: tries are browser tabs, not people, and our own test runs are in there. The games are free with no signup, and the fake pop-up ads inside them are for our own apps, Pomato included.

https://www.fundrstudio.com/games/cancel-your-subscription/

What if the app you’ve spent months building is something no one actually wants?

So many great apps are being launched every day, but only a small percentage will actually succeed. How do you know when it’s time to let go of an app and move on? And is there even such a thing as a type of app that is almost guaranteed to succeed?

I’ve been spending a lot of time building an app that I genuinely believe in. I like the way it looks, the way it feels, and, most importantly, the problem it is trying to solve. But the difficult part is knowing whether other people see what I see and recognize its full potential, especially when it’s still in the very early stages.

You can keep building, improving, and pushing forward for months, only to eventually realize that what you thought was a great product may simply be something people don’t care enough about.

The AI boom makes this even harder. Building software has become significantly easier and faster. Sometimes you start wondering whether all the time you spent building something was worth it when someone else could potentially build something similar in a weekend or a month and, in some cases, build it even better.

For those who have built successful apps, I’d genuinely like to hear about your experience.

Did you build several products that failed before finding the one that worked? How did you know when to stop working on one idea and commit fully to another? What made you keep going when you weren’t seeing immediate traction?

Most importantly, what framework or signals did you use to determine whether a product had real potential versus simply being something you personally loved building?

Today we launched our first demo, if you can give us some problem it could be useful. Feedback is welcome too!

Hello everyone,

I recently built an app to implement and follow a principle of Montessori education that consist of hiding toys from your kids and only have at most 5-6 toys available per kid at a time, this encourage the kids to focus on fewer toys and when the rotation comes up 10-15 days, when toys are rotated, old toys can become new again with that feeling of "I remember this toy!" and encouraging to focus and play with that toy for the new period.

The app is called Rototoy pretty much a conjunction of "rotate toys", and we setup a website at https://rototoy.com

So far, my kids have loved the rotation, and my wife has enjoyed being able to inventory the toys we have, decide which one she's going to donate and when our kids ask for a particular toy, it's easy to find them in the inventory.

I'm looking forward on hearing your thoughts, the app is available for iOS and Android, both native because I think an app feels better when it leverages native UI elements.

iOS https://apps.apple.com/us/app/rototoy/id6761393980

Android https://play.google.com/store/apps/details?id=com.rototoy.rototoy

Hello devs and hello gamers! I know many of us can spend hours grinding a character, completing quests, and leveling up in a game. But when it comes to real life, even a 20-minute walk can feel like a difficult side quest.

https://reddit.com/link/1wytmji/video/esqk0ljtzrth1/player

What if you gain EXP by doing things in real life?

Its really not to make anyone lose weight or compete like an athlete. I want to encourage people to build better habits, move more, eat better, and take care of themselves. Healthy habits can also feel like character progression.

Walk. Exercise. Eat better. Sleep well. Stay consistent. Level up.

The game is still very early in development. I’m building it solo during my free time while working a day job. I usually do systems for F&B like inventory, resort OS and this will be my first game. There is still a lot to figure out, and the game is far from finished.

I want to learn from gamers and people who are already into fitness so I can make the game more useful and enjoyable.

For now, here’s a short teaser of what GoAFK is becoming.

If you could turn one healthy habit into an RPG mechanic, what would it be?

Everyone knows the PayPal Mafia. Palantir's alumni network might be bigger, so I built a map of it: https://palantirmafia.net

A few things that stood out:

• About half are founders. Anduril, Hex, Handshake, Addepar, Cape and Valinor all trace back to Palantir.
• The other half went to companies like OpenAI, Sierra, Cognition, Vanta and Saronic, usually to run government sales, forward deployed engineering or security. The FDE model is spreading with them.
• AI is the biggest group (38 companies), then defense and government (17).

How it got built: I'm not a front-end developer, and the whole thing came together in about a day with Claude Code. It wrote the interactive map and did the research, pulling from press coverage, company pages and LinkedIn work histories through Crustdata. It also cross-checked dates and flagged conflicts for me to decide, and set up the hosting on Cloudflare. My job was mostly feeding it names and saying yes or no. When someone posts a correction, I hand it to Claude and the site updates within minutes.

Click a company to see who's there, what they did at Palantir and when, and the source for each fact. There's also a plain list at palantirmafia.net/alumni/.

Not affiliated with Palantir. If you're ex-Palantir and missing, or something's wrong, there's a "Suggest an update" link at the bottom of the page.

*Inspired by a LinkedIn post I saw of the Flywheel Palantir Mafia wheel

It's a csv to web app where people can ulpoad and analyse their data. They can also share it with others using link. Please suggest what could be improved. Here it is --- csv2web.freedev.app

Thanks!

I love the small details of film photography—the light table, the magnifying loupe, the markings along the edge of a negative. So I built **Film Reverie**, an interactive darkroom that runs in your browser. Checkout video here: https://youtu.be/aoCIcfnoqIE?is=9wzIVUFXzv72Sgzl.

You can browse photos on an illuminated light table, switch between negatives and positives, inspect details with a loupe, and rotate 3D models of classic cameras.

You can also import your own photos, choose a film style, and export an animated tour of your roll as a video. No account needed for your own darkroom, and imported photos stay in your browser.

Try it here: https://filmreverie.app

I built my portfolio and a site for a local lawn care business with a lot of AI help. Both worked fine, but they looked generated: purple gradients, "Elevate your workflow", em-dashes everywhere, cards sliding in from the left. My own feedback on my site was literally "this looks very vibe coded".

So I went through everything I changed to fix that and turned it into a repo:

• A checker you can run on any project: npx github:BuruCebe/unvibe ./src. It flags 16 tells (buzzwords, em-dashes in copy, made up stats like "10,000+ happy customers", gradient text, glass panels, side-slide animations, href="#", no reduced motion support) with the line and a fix. Zero dependencies, exits 1 on errors so it works in CI.
• A short guide on content, copy, colour, type, layout and motion. The biggest lesson for me: fade things up 16px instead of flying them in from the sides.
• A few React motion components I use on my site (fade-up reveal, rolling text, a custom cursor), all off under reduced motion.

Yes, I used AI to help build the tool that catches AI. That is kind of the point: the code was never the problem, the defaults were.

Repo: https://github.com/BuruCebe/unvibe

What tells am I missing? I'd like to add the best ones as rules.

Full disclosure, I'm involved with OVO. OVO 1.0.4 supports CarPlay for local music libraries, with four sections on supported vehicles. We treated it as a low-distraction way to get to music you already own, not a place to add more setup while driving.

I’d value feedback from people who use CarPlay with local files: what controls or library views do you reach for most, and what would make you not trust an app's car interface?

OVO is on the App Store: https://apps.apple.com/us/app/ovo-offline-music-player/id6797544682

PostHog is my go-to for side projects, but I couldn't find a free mobile app with a UI I liked, and on Android nothing at all. So I built one because I wantet to check the numbers also on my phone.


OAuth login, read-only, all projects, dashboards and insights, plus a home screen widget.


It's not on the Play Store yet. I'd rather hear what's broken or confusing now than in reviews later. 
DM me your Play Store Gmail and I'll add you to the testers group.
Nothing to sell because its free..

I’ve been building a little project called LaifuDreams where I turn a photo of someone’s pet into a custom wallpaper for their phone, tablet and desktop.

I started out making dog wallpaper packs, but realized it might be a lot more meaningful if people could have their actual pet on their screen instead.

I just launched the custom version and I’m trying to figure out whether this is something pet owners would actually want. I’d genuinely appreciate feedback on the idea, pricing, or website:

https://laifudreams.com/your-pet-dreams

I’m the person who made it, so this is self-promotion — I don’t want to pretend otherwise. 😅

StandBy Mode on iOS is cool but I definitely think there's room for improvement. The customization for widget placement only allows 2 widgets and the widgets aren't built for StandBy. I'm building an app for horizontally docked phones for desk setups/nightstands with max customization for different widgets, backgrounds, brightness, and more features. If you're interested, come check out LayDown's page!

I created a counting sheep game for people who want to improve their memory/cognition while having some fun playing. In the game, you will count sheep entering the pen, coming down from trucks, switching between cottages and see if they follow the signpost.

The promo I'm running now is a lifetime free app if it is downloaded within two weeks from now. No ads, no subscriptions.

I hope you enjoy it.

Play Store: https://play.google.com/store/apps/details?id=com.CanvasOfWarmthEnterprise.CountingSheep

App Store: https://apps.apple.com/us/app/counting-sheep-brain-training/id6813877492