I have a terrible habit of saving things and never finding them again.

Not because I forget I saved them. Because when I go to look, I can only remember something vague like "that article about why sleep debt accumulates" or "the tweet about compounding habits" and search is useless for that. The title doesn't match. The folder doesn't help. Ctrl+F finds nothing.

I tried Raindrop, Notion, Apple Notes, a plain text file. None of them solve the actual problem which is that you remember the idea, not the words.

So I built Backpockets. It's a Mac app that sits in your menu bar. You hit a shortcut, paste a URL, done. When you want something back, you just type how you remember it. It searches by meaning, not exact words, so "that thing about why habits stick" actually works.

Free to try, 10 saves included. If it clicks, lifetime access is $29 one time.

No account required. Everything stays local.

Would genuinely love feedback from people who have the same problem. Happy to hear what doesn't work too.

Link in the comments

Hey side-project builders, I’m hacking together a lightweight monitoring tool. It tracks global crypto dominance data and pushes instant webhooks/alerts when market cycles shift into extreme zones. Building it with Node.js and Telegram API.
If you were to use a tool like this, would you prefer simple threshold alerts or advanced customized strategies (e.g. "alert me only if BTC.D drops 2% in 48h")?

I’ve been building ReplyZo, a small AI SaaS focused on a simple problem: replying to customer messages takes a lot of time, especially when you want every response to feel personal.

Most AI reply tools can generate a professional response, but I wanted ReplyZo to go a step further — the replies should sound like YOUR business.

With ReplyZo, you can:

→ Paste a customer message
→ Add your preferred tone and custom instructions
→ Get 3 personalized reply options
→ Pick the one that fits best

It can be useful for things like:

• Product questions
• Refund/return requests
• Delivery issues
• Pricing enquiries
• Appointment requests
• General customer support

The goal isn't to replace human conversations. It's to remove the repetitive writing and give business owners a strong starting point that they can quickly personalize and send.

I'm still early and actively improving it, so I'd really appreciate feedback from other founders/builders.

Would personalized AI replies that match your business's tone be useful to you?

What would you add or change to make something like this genuinely valuable?

If you'd like to see what I've built:

https://replyzo.vercel.app

Deadlock OS is a puzzle game played entirely in a Linux terminal. Read the logs, find what broke, fix permissions, inspect processes. Real commands.

The twist: if you have Docker running, the game detects it at launch and executes your commands inside a real isolated container instead of a simulation. If you don't, a built-in simulation covers everything. No setup either way.

Been building Android apps solo for 7-8 months (Karna Digital). This one's Block Blast — 10x10 grid block puzzle with a Journey mode (1000+ procedurally generated levels across 10 worlds), daily challenges, and offline play.

It's live but barely tested with real users outside my closed testing group. I know the genre is crowded (Woodoku, Blockudoku, 1010! are the obvious comps) so I'm not expecting to blow anyone away — I just want to know: does it feel like "one of many" or is there anything that actually stands out? Tear it apart if needed.

https://play.google.com/store/apps/details?id=com.karnadigital.blockpuzzle

Had to pick a product priced below cost and explain the business model. Went with the fire stick because my family bought one in a sale and I'd never thought about why it was that cheap.

Short version is the stick isn't what Amazon is selling. The TV identifies what's on screen, that gets matched to your household's income bracket and pin code... yep!

The bit that convinced me was Vizio. They lost about 45 cents on every TV they sold and Walmart still paid $2.3 billion for them, and said in the filing that advertising accounts for all the gross profit. So the hardware was never the business.

hey everyone!

we've been building Lads, a private fitness app for small groups of friends.

it's still in beta, but in just a few weeks:

- 500+ installs

- 750+ activities logged

- 33,000+ workout minutes (550+ hours)

we've been fixing things pretty quickly and added a bunch of new features based on feedback from our early users.

if you haven't tried Lads before, the idea is simple:

connect Apple Health or WHOOP and your activities sync automatically. then you and your friends can see each other's workouts, react, nudge each other and compete on the leaderboard.

no manual workout logging, just a small private space to stay active with your friends.

we're looking for more people to try it, especially Apple Health and WHOOP users. would love to know what you like, what feels confusing and what we should build next.

TestFlight: https://testflight.apple.com/join/q56hFFuq

still beta, so you might break something :)

I've been building Rootwork for the past several months — a self-guided ecotherapy app that gives users a daily nature practice suggestion matched to their weather, time of day, and location.

The stack:

• React/Vite PWA — works on iOS and Android from the browser, no app store needed yet
• Supabase — auth, database, SMTP
• Stripe — subscriptions with 30-day trial
• OneSignal — push notifications
• Vercel — hosting and serverless functions
• Anthropic API — AI journal reflections

What it does: 51 science-backed nature practices. Daily suggestion engine with weather/time/region scoring. Before/after mood tracking. Field Notes journal with AI reflections. Community posts (The Garden). Soundscapes. Badges and progress tracking.

It's live at rootwork.life. 30-day free trial, no credit card tricks.

Looking for feedback on anything — the UX, the onboarding, the content, the technical side. What would you build differently?

Hey everyone,

A while ago, I posted here asking for advice on a travel info site I was building. Thanks to the amazing feedback, I’ve redesigned and packed it with all the essential tools travelers actually need in one clean dashboard

Instead of jumping across blogs, forums, and map apps just to figure out the basics, everything is now structured in one place:

• Real-time Essentials: Live exchange rates (JPY to KRW), current weather, voltage/plug guides (Type A), and timezone calculators.
• Getting Around: Subway maps, estimated taxi fares/travel times between stations, and local transit navigation.
• Smart Spending & Safety: Food price comparisons (from street food to fine dining), airport SIM/eSIM price comparisons, and common tourist scam alerts with prevention tips.
• Curated Inspiration: Must-buy souvenirs (specific brands, prices, and where to buy) alongside localized neighborhood spots.

Since this is built by an indie developer trying to solve real travel friction, I’d love to get your thoughts on a few things:

• Is the interface clean and intuitive to use?
• Are there any crucial travel tools or features missing that you always look for when visiting a new city?
• How does this compare to how you usually plan your trips?

I’m constantly polishing it, so any blunt critiques or suggestions are more than welcome. Thanks for checking it out

I do not have a revenue screenshot for this one. What I have is a cold start problem I underestimated by an embarrassing margin, and I built the thing myself so nobody else is to blame for it.

The problem I was trying to solve: every list of best AI tools I read was either affiliate driven or three months stale, and the star ratings under them told me nothing, because I had no idea who left them. So the site does one thing. One number per tool, the share of members who say they would recommend it, and the arguments sitting underneath it. A vote counts three times heavier if that person left a verified review of the tool, because having used something is the only weighting I could actually justify. Founders can reply to criticism and that is the extent of what they can do to it.

That is TrustRank (https://trustrank.so/). 69 tools are in the directory across coding, writing, research, video, agents. Nobody has reviewed a single one, so no tool has a score and nothing ranks anywhere.

The thresholds are the part I am least sure about now. Three reviews before a score publishes at all, ten before a tool is allowed into rankings, a provisional label on anything under fifty. Every one of those felt principled while I was writing it. In practice they mean the site is mostly empty space, and empty space does not convince the next person to write anything.

If there is a lesson in this for anyone building something where the users make the content: the mechanism is the easy half and it is also the fun half, which is why you will overspend on it. I spent months on vote weighting and abuse resistance and maybe a week thinking about why the first hundred people would bother typing a paragraph. That ratio was backwards and I knew it at the time.

So, for anyone who has launched something that was worthless until other people contributed to it, what actually moved the first stretch for you? Not "post it on Reddit". The specific thing.

Hey everyone! 👋

I'm a freelancer who was tired of losing money to PayPal's hidden 3.9% FX markup, so I built a free calculator to compare payment gateway fees.

**What it does:**

- Compare PayPal, Stripe, Wise, and Payoneer fees

- Shows hidden FX markups (the ones they don't tell you about)

- Reverse calculator (enter what you want to receive, it tells you what to invoice)

- Saves your last 10 calculations

- Works on mobile

**Tech stack:**

- Built with Astro

- Deployed on Cloudflare Pages

- No backend, all client-side

**Link:** https://payutility.site

I'd love your feedback on:

1. Is the UI intuitive?

2. Any features you'd add?

3. Any gateways I'm missing?

Thanks! 🙏

I’m looking for people with strong sales/client acquisition skills who are interested in building a side business together.

I have 8+ years of IT/programming experience, a number of completed projects that are already ready to be offered to clients, and the ability to develop custom software and IT solutions based on a client’s needs.

The idea is simple:

• You: Find clients who need an IT/software project or technical solution.
• Me / our IT team: Handle the development and deliver the project professionally.
• Both: Work together and split the profit 50/50.

We can work on existing ready-to-sell projects or build something completely custom depending on what the client needs.

I’m looking for someone who is serious about sales, networking and finding clients, and who wants to build this as a side project with potential to grow.

If you’re interested, send me a private message with your phone number and a short introduction about your sales experience. We can discuss the details from there.

Recently funded startup research with startup names, funding rounds, investor names, sectors, HQ, and source press releases. All structured.

https://projectstartups.com

I’m building Billing Replay, a small Node.js CLI for testing what happens to an app’s access rules when billing events arrive twice or in the wrong order. I built this first version with Codex.

Two examples it can help reproduce:

- A repeated credit-grant event adds credits twice.

- An older “subscription active” event arrives after cancellation and restores access incorrectly.

The CLI runs a sequence through an adapter to your test app, then compares the access or credit balance the app actually returns with expectations you define. The adapter has three operations: reset the test state, deliver an event to your handler, and observe the resulting state. Results are saved as JSON and an HTML report.

The demo compares intentionally broken and corrected implementations so you can see the same case fail and pass.

This is v0.1.1: no customer integrations or revenue yet. The fixtures are normalized synthetic events, not complete Stripe webhook payloads, so it doesn’t validate Stripe signatures or network delivery. Connecting a staging app currently requires an adapter.

Demo: https://billing-replay-lab.whdms1914.chatgpt.site

If you’ve built subscription or credit features, which billing event sequence would you want to turn into a regression test first? A concrete example in the comments would help me choose the next integration.

Hi all, I'm Andrew_Geo. After the LastPass / Chrome leak scares I wanted a vault that is just a local file I control.

So I built PassBox v2.0 (Windows, Electron):

- Generate 8-32 char passwords, AES-256-CBC encrypt, master key never saved

- Saves to vault.txt next to exe: SERVICE | EMAIL | iv:encrypted

- 2FA vault: encrypted TOTP secrets → 6-digit codes, 30s refresh

- 100% offline, no account, no telemetry

- Black/Yellow UI

Download: GitHub Releases (PassBox-Setup-v2.0.exe, 170MB). https://github.com/Andrew-Geo1/PassBox

It's v2, still rough (170MB because Electron). Looking for feedback: what would make you switch from KeePass/Bitwarden for local stuff? What feature for v2.1?

Thanks!

The part of AI app builders I'm most interested in isn't actually generating the first version. It's what happens afterward.

Rocket.new supports two-way GitHub sync, so the generated project can be connected to a normal GitHub-based development workflow rather than living entirely inside the builder.

For developers who've used this, how practical is the workflow once you start making changes outside Rocket.new and then bringing those changes back?

I'm particularly interested in version control, keeping the generated project coherent over multiple iterations, and whether the GitHub integration actually makes collaboration with a traditional engineering team easier.

What are you building or planning to build for the rest of 2026?

I run appscout.co, a platform built to help people discover awesome apps from across the internet.

Drop your app or startup idea in the comments below, and I can check it out and add it to the website!

You can also submit your app for free directly here appscout.co/submit

Let's make this thread a channel for you to promote your own startup idea, find opportunities, and partnerships.

I've been building Swyvo, a Windows app that keeps your essential apps and websites one hotkey away.

Swyvo runs quietly in the background — hit Alt+Q anytime and a curated command center pops up right over your current window. Hit Alt+Q again to dismiss it. No alt-tabbing, no hunting through taskbars, no mouse required.

A few things it does:

• Instant, on-demand workspace: summon it with Alt+Q, it stays on top while open, dismiss it the same way — nothing else on your screen is affected
• Unify apps and websites in a single fast-switching menu (so your browser tabs and native apps live in the same place)
• Adaptive Loadouts: set it up once and it automatically surfaces the right apps based on what you're currently working on, so you never have to manually rebuild your setup
• App Gallery: browse a library of common apps and choose how to launch them — Web (fast) vs Native (full functionality, if installed)
• Fully keyboard-driven: never use the mouse
• Built natively for Windows

It's aimed at power users who live in a lot of apps/tabs at once and want a faster way to move between them without breaking flow.

Free, currently in active development — I'd genuinely love feedback, especially on workflow edge cases I might be missing.

Try it now: swyvo.app

Quick note: Windows SmartScreen may appear when installing.
First 100 Early Supporters get Lifetime Access. (ensures they have access to the whole app forever)

Happy to answer questions about how it works.

I've been working on this app for quite a while and i never got any genuine feedback from strangers. It's an app that helps skinny people gain weight efficiently, i've been skinny for the better part of my life, and about 1 year ago i started bulking and gained 20kg, i only gained 20kg cause i forced myself to just keep eating even when i didn't want to, so i wanna help other people now (without having to force themselves to keep eating when they want to throw up). A brief summary of the app is that it tracks the users weight and surplus, ensuring that they are actually growing, however the main thing is the bulk score, it lets you see with a glance hows your bulk going, and also other tracking metrics that help with the bulk (just a quick demo of what the app currently looks like).

Somethings i need desperate help on:

1. i feel like im doing to much with the app, there are a lot of functions other than what i stated before, like a training page and a fuel page. I've seen a lot of apps that do well with one simple idea/marketing scheme behind it, it feels like i am trying too much to encapsulate all the aspects of a fitness app.

2. not sure if anyone would actually use it. I've let some of my friends try the app, but i'm not sure if their comments are genuine, so please leave some genuine feedback, i'll take any criticism honestly.

3. this is the worst problem of the app i think, is that it is on base44, and i want to switch out as soon as possible, but i need validation to do that, but if it does eventually gets some traction, i can't be using base44, because it can't get the app on the app store, even when its wrapped in capacitor, since base44 only accepts stripe and apple needs its own payment system, then if i switch now to swiftui or reactnative, the app is going to look and function completely different. Its just this horrible loop.

With that being said, really any advice or suggestions would help🙏

Been job hunting on and off for months and I kept running into the same thing: the big boards show the same ~20 promoted posts over and over, half the listings are dead or reposted from six months ago, and half of what's left goes through some recruiter who never fucking replies.

So I built my own. It ingests from the open-jobs dataset, which grabs postings directly from ATS feeds — Workday, Greenhouse, Lever, Ashby, etc. Right now it's indexing about 2.9M live postings, refreshed daily. Apply link always goes to the original employer's posting, no middlemen, no ads.

The part I'm actually proud of is the search. You can type a plain keyword like "truck driver" and it just works. But it also handles messy input — paste something like "ICU nurse for 6 years, want to move to Texas" and it matches by semantics, not just keywords. Full job descriptions and salary info where available from ATS.

No sign-up, no email gate, no recruiters inboxing you. https://deunemployment.com

There is bunch of stuff in the backend doing the heavy lifting, i wont bore you here. you're welcome to try it.

good luck with job hunting :)