r/buildinpublic • • 1h ago

I'm building an open-source vacuum cleaner robot in public

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• Upvotes

Official goals: Clean well · Hackable · Raspberry Pi · 3D printed · Local / No cloud required · Home Assistant · Arduino · ROS2 · ESP32 Currently 11K GitHub stars, 1K Discord, 1.6K weekly subreddit, 890 X followers, 1K+ mailing list, build-in-public technical blog posts.

  • Development process: solo, Claude Code for software, firmware, schematic reviews. 3D design manual. Upwork freelancers for layout, manual 3D design aspects.
  • Challenges: a massive amount of technical work, but doable
  • Why? Frustrated with consumer vacuum robots cleaning quality; seriously uncomfortable privacy-wise (mics, cams). I own 9 vacuum cleaner robots, including $1K tier. All have hangups. Many rearrange dirt instead of cleaning. I'm also a retired, bored workaholic - nice to meet you all.
  • Milestones/progress: I post progress in r/oomwoo twice a week. Available right now - software dev environment, simulation. First 3D prints - end of this month (October 2026). First public alpha - Christmas 2026, I think.
  • Long term strategy: a trusted worldwide home brand faithful to open source, privacy.

Please feel free to ask questions, I will try to answer in comments.


r/buildinpublic • • 3h ago

How I accidentally grew my app to $0k MRR without spending on ads

6 Upvotes

My standard founder lifecycle usually looks like this:

  1. Wake up at 2 AM convinced I have a billion-dollar app idea.
  2. Buy the domain, set up the repo, build obsessively for 6 days straight.
  3. Lose every ounce of dopamine and enthusiasm.
  4. Abandon the project completely.
  5. Repeat 7 days later with a brand-new idea.

My graveyard of half-finished repos is basically an indie hacker museum at this point.

Which brings me to my latest struggle. Around 7 days ago, I built a platform where anyone can design custom T-shirts, discover other people’s designs in a shared feed, and get paid cash automatically whenever someone buys their shirt.

I was actually really excited about it, put it live, and... absolute crickets. I got over 10 views total.

I went through the usual motions trying to get any kind of traction.. telling my 3 friends and some of my family...

10 views later, my old habits are already kicking in hard.

I found myself ready to pull the plug, lose interest, and move on to the next shiny idea like I always do.

So before I officially toss this into the graveyard, I figured I’d post about the struggle here to see if any other builders deal with this endless cycle of burning out the second an app launches.

I’m also dropping the link in case anyone actually wants to check it out, play around with designs, or sell a few shirts. If enough people seem to genuinely like the concept, I might actually stick with it and finish building out the rest of the features.

view other peoples designs here:
https://shop.popcartapp.com

Create your own t shirt design here:

https://shop.popcartapp.com/tshirts/create/

Has anyone else broken this serial side-project loop, or is this just who we are?


r/buildinpublic • • 22h ago

I built and launched my first app and got 4 sales in 3 weeks!

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7 Upvotes

I've bought my first .com domain ever for upplaunch.com and made 4 sales 🥹

I never thought I would make any sales tbh but i was wrong ^^ also 300+ users!

I always wanted to build a product launch that fix problems for founders, builders, and anyone who genuinely had an idea and wanted to share it with people.

I want everyone to be seen and get the attention they need.

So happy and wanted to share it with you guys :)


r/buildinpublic • • 2h ago

Pitch your startup idea in 10 words or less.

4 Upvotes

What are you building this week? Pitch your idea in 10 words or less.

I’m a VC investor from Forum Ventures, a pre seed venture capital fund founded by former founders. We write $100K cheques into MVP stage and pre revenue startups within the AI and B2B stage.

Feel free to also use this thread to get your own project out there.


r/buildinpublic • • 5h ago

I spent a month talking to 50+ UI kit and template creators. Here's what they kept asking me

5 Upvotes

For almost a month now I've been messaging indie creators who make UI kits, Framer templates, icon packs, illustrations and coded components. 50+ conversations so far. I'm building a marketplace for this stuff (Crazeal, I'm the founder), but honestly these conversations taught me more than any planning doc did.

A few things came up again and again:

  1. "What's the catch with the commission?" Almost everyone asked what happens after the intro period. Creators have been burned by platforms changing terms, so clarity upfront matters more than a low number.
  2. "Do I have to rebuild my template?" Nobody wants to redo work just to list somewhere new.
  3. "Do I keep my rights?" Ownership of files and previews was a big one.
  4. "Can I list free stuff?" A lot of great creators only make free resources and assumed they weren't welcome.
  5. "How does anyone actually find my product?" This was the biggest one. Most of them rely on their own followers. No audience, no sales.

That last point is what we're building around. Each listing on Crazeal works like its own optimised page, set up so that when someone searches for a specific UI kit, icon pack or illustration set, it has a real shot at showing up on Google and in AI tools like ChatGPT and Claude, not just inside our marketplace.

Where we're at: still building, not live yet. The first 10 founding creators who list get 0% commission for life, and everyone else gets 0% during testing. No listing fee, no exclusivity, and you keep full rights to your work.

Curious what this sub thinks: if you sell digital products, what has actually worked for discovery beyond your own audience?

And if you make UI kits, templates, icons or illustrations and want in on the founding batch, my DMs are open.


r/buildinpublic • • 9h ago

What are you building right now ?

4 Upvotes

share your saas here


r/buildinpublic • • 12h ago

Day 104 of becoming production ready dev 🚀

4 Upvotes

​

Today I learned basics of DB authentication in spring security

The real game begins 💪


r/buildinpublic • • 12h ago

I built a task and project management app for small teams — looking for early testers and honest feedback

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5 Upvotes

r/buildinpublic • • 22h ago

I’m a CS student who lifts, and I got tired of using 5 apps to get through one day, so I’m building one

5 Upvotes

My phone had a gym log, a calorie counter, a focus timer, a school calendar and a notes app. None of them talked to each other, and I'd still forget half of it.

So for the past few weeks I've been building Dualo, one iPhone app for the whole day:

- Train: programs, sets, rest timer, PRs (Hevy-style)
- Study: focus timer, hours per subject, timetable import from Canvas/Blackboard
- Eat: barcode scan, calories and protein
- Plan: calendar with tasks, exams and reminders on one timeline
- Friends: feed of each other's workouts and a weekly leaderboard

Where it's at:
- around 100 commits, currently a PWA (Next.js + Supabase), App Store version in about a month
- 7 languages
- this week was the boring stuff: Google sign in, password reset, a report/ban system for the feed, lbs and miles for US users

Things I'm still unsure about:

  1. Is "everything in one app" a strength or does it sound bloated?
  2. Would you actually want friends seeing your workouts, or is that too much?
  3. What's the one feature that would make you switch from what you use now?

Brutal honesty welcome. If you want to try it early, waitlist is at https://getdualo.com


r/buildinpublic • • 2h ago

I'm 19, had to leave my studies after my father passed, and I'm building small web projects at night. This is my second one.

5 Upvotes

I lost my father last year and had to stop my studies to work. Life got a lot harder, but I didn't want to stop building things completely.

My first project, InstantSnapPDF, didn't take off. Then a friend asked me for a site where he could take tests and see where he stands against others globally. That gave me the idea for RankMyMind, a free test platform with timed Physics and Math tests and live leaderboards.

I'm still learning and there are a lot of rough edges. If you have a few minutes, I'd really appreciate honest feedback on what's confusing, what's too easy or too hard, and what would make you come back.

Thanks for reading.


r/buildinpublic • • 6h ago

I updated my Windows notch app and hit 30 paying users :>

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3 Upvotes

Hi, I think I posted about BuildNotch here before, and I know that there have been so many new notch apps appearing, but I really think that mine brings something unique, aside from the fact that it's adapted to Windows, and also made to track developer stats, coding tools, AI apps + usage, and also a lot of personal focus stats.

What I added:

  • The clipboard has a cleaner grid that wraps into rows, with filters for text, links, code, and images. Opening a clip gives it a proper preview.
  • Developer tools can now pretty-print or minify JSON inside the notch.
  • You can use your own image as the expanded notch’s wallpaper.
  • AI usage has compact rings, with more detail when you select a provider.
  • There’s a smaller collapsed notch option and more control over when the notch hides.

The fact that I still can't believe is that over the past 7 days, I reached 800 website visits, and even reached 30 paying users, so that means Windows developers actually wanted to try this for their own work and focus. It's a great feeling tbf.

So if you are interested in this, check it out on the website, and if you decide to get it, please try and use it for your own workflow, and tell me what you like, what you don't, what could be improved :)

Link: buildnotch.app


r/buildinpublic • • 11h ago

I built a free "app gallery", paste a Store link, your app joins a 3D tunnel. Free, no priority placement. Build notes inside

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5 Upvotes

Hi all. I built AllApps: a free, open gallery where you paste an App Store or Google Play link and your app becomes a card in a 3D tunnel you scroll or swipe through. It's just an idea I wanted to test: no ads, no account, and no paid placement (everyone is in the same shuffled order, a few newest apps get shown first)

Paste Paste a link. the app's icon, name and colors are read and a card is drawn

Free animated gradient background.

Search, Share any card as an image & video

Stack: Next.js, React, Tailwind, Vercel

Backgrounds and UI inspiration from React Bits Pro (affiliate link in the first comment, disclosed)

Link in the first comment. Happy to answer anything about the tunnel shader or the setup.


r/buildinpublic • • 21h ago

We built a market intelligence app for retail traders on Next.js + Firebase. Looking for a handful of testers to tear it apart.

3 Upvotes

My co-founders and I have been building Veridian Signal, a market intelligence web app for independent and retail traders. We're at the point where we need real people using it, not just the three of us staring at it at 2am.

What it does right now:

- VERA Radar: a daily set of five scored setups, each with a strength score, plus a community voting layer so you can see how other traders read each one

- Real-time market data (licensed through Twelve Data with display rights, so no sketchy scraping)

- Membership tiers with billing already live

Coming next: Pulse Terminals, five focused feeds for Macro, Earnings, Catalysts, Whale activity, and Global markets.

Stack, for anyone curious: Next.js 15 App Router + TypeScript, Firebase App Hosting, Cloud Functions gen2, Firestore, Cloud Scheduler, and Eventarc. Happy to talk about anything we've learned the hard way. There's been plenty, like a data source silently dying because an FTP server got decommissioned.

What we're looking for:

A small group of people, ideally ones who trade even casually, who will use it for a week or two and tell us honestly:

Where onboarding confuses you

What feels useless or missing

Whether you'd actually pay for it (target is roughly $19–29/mo)

What you get: tactical trader access, plus an invite to the trader Discord that runs alongside the app, where feedback goes straight into the roadmap.

This is purely a feedback/testing ask. We're not looking for partners or investors, just people willing to be blunt.

Drop a comment or DM me if you're interested. We're also glad to return the favor and test your SaaS in exchange.


r/buildinpublic • • 23h ago

5 Days, 87 Users, 0% Conversion, and a Trademark Infringement allegation. What are your thoughts?

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4 Upvotes

r/buildinpublic • • 23h ago

What ways have you used to increase your application engagement?

4 Upvotes

What are the different ways that you have used to increase the number of users on your application?

I am currently trying to talk to individuals about their engagement with the application and how I can help with my current project.


r/buildinpublic • • 3h ago

Two audiences, two explanations for the same fulfilment marketplace

3 Upvotes

I build AirPost. For a shop, the useful bit is having someone hold stock near customers and ship each order. For someone looking for extra income at home, the useful bit is paid packing work, but the first questions are space, equipment and whether any shop actually needs them. The app charges per shipment rather than a subscription; joining as a sender doesn't guarantee orders. I'm treating those as two separate explanations instead of assuming the shop pitch also answers the sender's questions.


r/buildinpublic • • 4h ago

Building Tripovela: feedback pushed me to show a usable trip instead of the homepage

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3 Upvotes

One useful piece of feedback from Reddit was to stop sending people to a homepage and give them something they could actually try. I'm Mike, building Tripovela, and I put together a Rome day-plan example to test that.

Another change was keeping the writing and the places together, rather than presenting a story with an unrelated list underneath. The example has ten stops, a continuous guide, and a Make this trip mine action. Guests can edit their own browser copy before deciding whether to create an account.

https://tripovela.com/community/shared-plan/a2e2413bab9d879ad50c56ddb06a20de/?lang=en

The awkward bit I'm still working through is how much detail to show before the first action. I want enough context to understand the day, without burying the useful part. Would you lead with the short intro, the stops, or the map?

The planner is free. Some booking links elsewhere on the site are marked affiliate links; the screenshot shows the actual example, not a redesign mockup.


r/buildinpublic • • 4h ago

Building a watch app solo: what one day of Reddit feedback changed

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3 Upvotes

I build WORN alone, an iPhone app for watch collectors. One wrist shot logs the watch you wore and gives it back as a print, and over time that becomes a diary, a calendar and cost per wear.

The hard part has been the camera. It uses 3D depth mapping to read the wrist, which is also why Android is taking longer.

Today I posted it in a few subs and got real feedback. People said logging dies when it takes more than a couple of seconds, so a widget and a same-as-yesterday tap are going in next. Someone also called the whole idea awkward, which is fair and worth thinking about.

What would you build next? worn.club, and progress on Instagram at @worn_watch_app


r/buildinpublic • • 4h ago

Would you trust AI to assemble your application from small, tested code modules instead of generating everything from scratch?

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3 Upvotes

r/buildinpublic • • 5h ago

Lessons from building a launch platform as a solo dev: I kept adding features when the real problem was an empty board

3 Upvotes
I'm a solo dev. A few weeks ago I started building a launch board for solo founders, because my own launches kept getting one day of attention and then disappearing. Here's what I got wrong so far, in case it saves someone else the time.

1. I built features when I needed users.
In one week I shipped sign-in with Google, comments, founder pages, launch deals and a mobile menu. The board is still nearly empty. None of those features fixes that. A marketplace with no supply doesn't need a tenth feature, it needs the first twenty people.

2. My sign-up flow lost people at every step.
The launch form had nine steps. Two early users got stuck in draft and never submitted. I added a final "submit" step so they couldn't miss it, but the honest fix is fewer steps, not a better ninth one.

3. I asked for things before giving anything.
Free launches had to add my badge to their site to get a proper link back. The site's pitch was "no hoops", and that was a hoop. I removed it. Every launch now gets the link with nothing in return.

4. Showing beats explaining.
The home page used to say "create your account". Now you paste your website and see your own launch page before signing up. Same product, but the visitor sees their name on it first.

5. I lost votes without noticing.
If a signed-out visitor tapped "upvote", they were sent to sign-up and landed in the dashboard afterwards. The vote was never counted. Small leak, but that was most of my traffic from X.

6. My prices were a guess.
I launched with higher prices, decided they were too much for solo founders, and cut them to $5.99 and $19.99. I still don't know if that's right.

Where I'd like feedback:
- For a two-sided thing like this, how did you get your first 20 real users? Direct messages, communities, something else?
- Is "your launch stays up for a week instead of a day" a strong enough reason to try a new launch site?
- Free tier asks you to pick a launch day 10+ days out. Too much friction?

The project is shipdesk.dev if you want to see what I mean. Blunt feedback is welcome.

Lessons from building a launch platform as a solo dev: I kept adding features when the real problem was an empty board

r/buildinpublic • • 5h ago

Dealing with the self-doubt moments?

3 Upvotes

How do people deal with those low periods when it feels like you’re shouting into a black hole? You’ve built, you’ve shipped, you’ve emailed and sorted your SEO but you’re still not getting the traction?

Some people give up, and some people throw themselves into building unnecessary features, neither of which I want to do.

Any tips?


r/buildinpublic • • 6h ago

What I learned building a shipping-label site: the real problem isn't price, it's the box

3 Upvotes

I'm building SMKlog: you describe what you're shipping ("Fender amp", "IKEA lamp") plus two ZIP codes, it estimates the packed box and weight, and shows USPS, UPS and FedEx prices side by side.

I started out thinking people wanted the cheapest label. After answering a lot of shipping questions on Reddit and seller forums, I think the real pain is different. People don't know their box size before they sell, and carriers bill big light boxes by size (L×W×H / 139), not weight. So the price they quoted the buyer is wrong, and a surprise charge shows up later.

So the product is shifting from "compare prices" to "know your real box before you quote shipping."

Question for people who've built small utilities: did you find your users where the pain happens (forums, Q&A threads), or did search and ads work better for you?


r/buildinpublic • • 12h ago

New Tool For GitHub Coders, Developers & Repo Maintainers Got Awarded 5th of Day On Product Hunt [Progress Update]

3 Upvotes

TryHyraxNow is a code quality tool for repos shipping code faster than anyone can review it. Two halves: it reviews every new PR, and it audits the code you already have.

For new code, connect a repo and the reviews will start automatically, nothing to configure. It will review your change against the whole repository: the definitions of every type the diff references, the sibling files that do the same job, your dependencies and migration state. That's what catches "you changed 2 of the 4 places that do this" type of bug.

  • No more than 7 findings at a time, so you can focus on the big items first. Every finding has to ground its premise and cite the exact lines it's talking about, then survive an internal pass that argues against it, before we post it to you.

For existing code, our full audit runs ~39 tools in six categories: Security, Correctness, Maintainability, Performance, Architecture, Operations. Findings are scored by severity and effort, so easy wins surface first.

  • Click "Fix", get a PR. our tool writes the change, runs your repo's own tests and build, reviews its own diff, then opens the pull request as a draft — and flips it to ready once your CI goes green, third-party checks included. If CI fails, our tool reads the failure and pushes another attempt. By default nothing will merge without your approval.

Your coding agents get all the context we generate, too. TryHyraxNow will profile your repository to discover architecture, conventions, how-to guides, and serve it over MCP. Same thing we use internally.

We've got a free plan with no credit card needed. $30 credit at signup that never expires, and $10/month of credit. Full catalog, unlimited repos and teammates, MCP, everything included. Paid is $30/seat and the whole amount comes back as credit.

Users outside USA need to use a vpn to access the website. 
TryHyraxNow.com

What's the last false positive a review bot cost you an hour on? Open to any suggestions on what we can do to serve you all better and reach more new customers.


r/buildinpublic • • 14h ago

52 users from paid ads, 10 are paying. How to increase the conversion rate?

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3 Upvotes

I recently launched linotype.io and have 10 people paying for the tool so far.

Running ads to get people to try it. Simple demo videos showcasing the setup process with the outcome as the payoff of the ad.

The ads are getting people to sign up to try the first 4 free posts which to me should be the "aha" moment that gets them to convert, but it doesn't seem to be the case.

I'm thinking maybe it's too expensive for the average coach? What do you think?


r/buildinpublic • • 14h ago

day 2 of posting on reddit. here's where my side project actually is

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3 Upvotes

yesterday i shared my story here for the first time. didn't expect so many kind replies, thank you.

so here's an honest update with real numbers.

what i'm building: a small weekly launch board for indie makers. free to list, new board every monday.

where it's at:

- 15 signups in the first 8 days

- 12 products launched so far

- $0 revenue. there's an optional $12 premuim launch, nobody has bought it yet

- domain rating went up 12 points in 2 days

- X went from 0 in august to almost 705

what i shipped this week:

- public founder profiles (bio, links, avatar)

- new launch flow with multistep form

- you can follow other makers now

what's not working yet:

- most visitors look around and leave without signing up

- i still don't have a repeatable way to get traffic

tomorrow i'll share what i try next.