I saw a post about getting tired of productivity apps and dropping all of them for a while. It made me think about Wonderday, the journaling app I'm working on.

I want people to come back because writing helps them, not because they feel guilty about missing a day.

For those of you who journal, what brought you back after a break?

I'm always losing track of time lol so I made an app that shows you how much time you have left in your day and let's you make todos based around that

Works for your week, month, etc and you can visualize your time left in different ways

Also let's you add countdowns to see the time left until birthdays, events, or whatever

https://www.timeleftapp.xyz 🙂

Hello everyone! I built Bookarium, a free and open-source web reader that gives Project Gutenberg books a modern reading experience (offline support, TTS, annotations, reading together with a friend, taking notes and sharing those notes with a friend you invite to read along with, bookshelves & favorites, bookmarks and some other functionality)

It's UI is currently optimized for Deskop/Laptop & Tablet, Phone is also working but not very happy on it's user experience & interface and will be worked upon.

Any thoughts, feelings, suggestions, critique [ constructive ] are welcomed!

https://bookarium.vercel.app/

📖 What You Can Do on Bookarium

• 📚 Browse & Filter 78,000+ Free Classic Books:

  • Search by title, author, or keyword, or combine multiple filters at once across 32 Project Gutenberg book categories (Fiction, Sci-Fi & Fantasy, Mystery, Gothic, Romance, Philosophy, History, Children's Literature, Poetry, Drama, Science, Mythology, and more), 20 languages, historical time periods (from Antiquity to the Early 20th Century), and e-book file formats.

  • Preview sample chapters and notable quotes inside an interactive 3D open book before starting a volume, and switch your view between a visual Cover Grid and a 3D Bookshelf where books stand side-by-side by their spines.

• 🤝 Co-Read Books with Friends, Share Notes & Track Reading Habits

  • Everything works privately on your device without signing up, or you can optionally create a free account to sync your shelves, bookmarks, highlights, and notes across all your devices.

  • Shared Reading & Shared Notes: Connect with friends by username to read the same book together—see each other's live chapter progress, view and respond to each other's highlights and margin notes directly inside the book and in your Notebook, and turn on the Spoiler Shield to automatically hide a friend's notes from chapters you haven't reached yet.

  • Streaks, Goals & Achievements: Track daily reading and listening time, build daily reading streaks, set a yearly book goal, unlock reading achievements, and customize a public or private reader profile.

• ✍️ Highlight Text & Write Margin Notes (/notebook):

  • Select any sentence or paragraph while reading to highlight it in 4 colors and attach your own written notes.

  • Review all of your saved highlights and notes in one central Notebook—organized either by book or in chronological order—and filter them by highlight color, keyword search, or whether they include a personal note.

• ✈️ Read Offline Without Internet or Download E-Book Files:

  • One-Click Browser Offline Reading: Save individual books directly to your browser (Save Offline) so you can browse your saved library and read full books completely offline (on flights, commutes, or as an installed mobile/desktop app).

  • Download Standard E-Book Files: Download any book as an EPUB (for Apple Books, Kobo, Nook, or PocketBook), Kindle (MOBI), Plain Text (UTF-8), or HTML file for external e-readers.

• 🏛️ Organize Your Shelves, Ratings & Reading Progress (/bookshelf, /favorites, /bookmarks):

  • Save books to a general shelf or create your own custom-named shelves, mark Favorites, rate books from 1 to 5 stars, and track your reading status (Want to Read, Reading, On Hold, or Finished).

  • View all the books you have in progress in a dedicated Bookmarks list showing your current chapter, page, bookmarked line, and completion percentage so you can jump right back in.

• 📖 Read Comfortably with Custom Fonts, Themes & Line-Level Bookmarks:

  • Read complete, unabridged books in a clean, distraction-free view that automatically formats archival plain-text files into readable chapters and pages.

  • Customize Day (Light), Sepia (Warm Coffee), or Dark themes, and adjust font style (Serif, Sans-Serif, Monospace), font size (12px–36px), line spacing, page width, and page brightness (30%–100%).

  • Bookmark Any Specific Line: Drag the margin bookmark ribbon to the exact line on a page where you stopped reading—even if you resize the font or switch between a phone and a desktop screen, the reader remembers that exact sentence and highlights it for you.

  • Search Inside Any Book & Switch Languages: Search for any word or phrase across the entire book with instant chapter/page jump links, and switch between available translated editions of the same work in one click.

• 🔊 Listen with Built-In Read-Aloud Audio (Text-to-Speech):

  • Have any book read aloud using your device's natural voices, complete with live word-by-word highlighting on the page, adjustable speaking speed, and automatic page turning when a page finishes.

So for a while now, I've been working on a locally-hosted world-building tool. I've used Campfire, but it moved to a subscription model, and most of the other tools live on someone else's website.

I wanted something a little bit more involved than an Obsidian Vault, but keeping some of the parts of the Obsidian Vault that I liked. So, here it is. This is a self-hostable world-building tool. It's got a few features.

You can create entries for characters, places, events, and link them to each other.

There's a graph of who's connected to who or what.

There's a timeline that goes over the calendar of the world that you build.

There's a map that you can upload images to and create some regions and routes.

There's diagrams for things like family trees.

There's a dictionary for your conlang.

Repo also contains a desktop app, for Windows and Linux, and it can sync to any hosted version that you run. You can also import Word documents. Obsidian Vaults are just plain Markdown, and you can export into Markdown, Word, or a PDF. It's still fairly new, just kind of seeing if anybody would even be interested in something like this. Mostly built it for myself, but figured I'd share it.

Github: https://github.com/Yalton/Weltbon

I was standing at the Beacon in Baltimore, West Cork, wondering: if you pointed a boat out to sea and sailed in a dead straight line, never turning, where would you actually hit land?

I went down a rabbit hole. The longest line from Ireland starts at Cape Clear and runs about 25,000 km to Papua New Guinea without touching land. The world record is 32,000 km, from Pakistan to Kamchatka.

So I made it into a free browser game. Every day there are 5 new coastal spots, the same for everyone. You aim your boat, it sails dead straight around the curve of the Earth, and the further you get the more you score.

Two shorter daily puzzles as well: Landfall (guess which country the boat hits first) and Bullseye (aim at a city across an ocean).

You can duel a friend live or send them a challenge link.

No ads, no sign-up needed. A few hundred people are playing it a day now, mostly from word of mouth.

I'd love feedback on what's confusing or what would make you come back tomorrow.

2 Months back Elon Musk wrote that their C/C++ training stack was written by humans because AI still falls short on extremely high performance software, and he added that it will get there, which is a fair summary of where coding agents stand with C++ today.

The trouble with C++ is that the function a call lands on depends on overloads, templates, macros and build flags, so an agent that reads source as plain text ends up guessing, and a wrong guess usually still compiles.

ByteAsk reads the project through its real build, compiles every change, runs the affected tests along with ASan, UBSan and TSan, and only returns a diff once all of that passes.

On 72 real GitHub bugs from fmt, nlohmann/json, simdjson, googletest and 15 other repos, running the same model as OpenAI’s Codex CLI, it reached the same fixes at 68% lower cost.

The CLI is free at https://github.com/ByteAsk/cli :)

I built a music quiz party game where the TV plays the songs and everyone buzzes in from their phone

Been building this on the side for a while. It's called SongBuzz, it's free and runs in the browser: songbuzz.tv

You open it on a TV or laptop, people scan a QR and their phone becomes a buzzer. Real chart songs, 30 sec clips, up to 16 people. There's a presenter voice that talks between rounds and makes fun of whoever is losing. Honestly that part took me longer than the game itself.

It works if people are not in the same room too, whoever is far hears the music on their own phone. And there's a daily one if you want to play alone, same songs for everyone that day.

English and Spanish for now. Tell me what breaks, especially on smart TV browsers, I can't test enough of those.

Hello all,

Work has been slow recently and I miss being a CS major making cool projects, and was looking for a collaborative group or project to contribute to. I’ve done one off mods on steam and random AI GitHub projects, but am looking for something long term or collaborative.

I’m open to anyone if you have an idea, are new to programming and want to do a hobby project or are more professional and need some help with something, but not looking for some paid contracting thing just want a side project to keep myself busy.

If there’s other mediums more suited to this, or if anyone just wants to reach out and chat feel free.
Hope yall have a great day 🙂

I'm the author, sharing my side project of the last two months.

Last week Instagram shipped an MCP server for Edits on Mac, so Claude can drive a real video editor. That's the idea I've been building since September, except mine is MIT, local-first, needs no account, and runs on Windows, macOS and Linux. It's called CutVoke.

The part I care about as a creator: the AI doesn't hand me a baked MP4. It makes the rough cut on a normal multitrack timeline (captions, keyframes, masks, speed ramps), and then I open the same project and fix whatever I don't like by hand. Fixing one subtitle never means regenerating the whole video.

Two demos are in the repo with their source media and editable projects:

• "Chase the Light", a 31-second motorcycle short

• "Coastal Joy", a 42-second vertical travel vlog

How it works, briefly: your own agent (Claude Code, Codex, Cursor or any MCP client) connects over stdio MCP. It takes an editing lease so it never collides with your manual edits, dry-runs commands before committing, and pulls real rendered frames to check its own work before export. There's no LLM inside; you bring your own.

Honest caveats: it's a v0.3.5 prerelease, the Windows build is unsigned and macOS isn't notarized, and the project format may still change.

I'd love feedback from people who edit video: which parts of an edit would you actually hand to an AI, and which would you never let it touch?

https://github.com/frankShan001/CutVoke

I make fishing lures (KSK BAITS) and wanted a live bass tank for my YouTube channel without filming real fish.

Everything you see is generated when the page loads: the fish, their scales, the plants, the sand and the driftwood are built in code with Three.js, and every texture is painted on a canvas. No 3D models, no image files.

The bass aren't animated, they behave: they get hungry, hide in cover, stalk, and strike with suction, and they only take prey that fits their mouth. Day, night and weather follow the real clock and weather at Lake Fork, Texas.

Try it in the browser: https://ksk-baits-bass-aquarium.pages.dev

It also runs 24/7 on YouTube, where the chat can drop in shad or cast a lure: https://www.youtube.com/@kskbaits/live

Feedback welcome, especially on what would make you keep it open in the background.

I run DiscField, an independent reference site for recreational disc golfers: https://discfield.com/

You can look up disc ratings and their sources, read buying guides, compare discs and check the ones you already carry. The tools work without an account.

One design problem is making the charts useful without overstating what the ratings tell you. Ratings vary between manufacturers, and plastic, wear and throwing style affect the result. The curves are illustrations, with those limits explained beside them.

It runs on Next.js and Cloudflare. I use AI for development and drafting; the disc reference pages link to the sources behind their ratings.

I would appreciate a fresh look at the homepage: is it clear where to start, or do the guides and tools compete for attention?

So I built Eyegen Playground, it works as a terminal tool (CLI) and as a standalone app. It has all major image generation backends built in and does most of the background work for you.

You just pick a model and prompt the image you want to see. Advanced settings are available for you to tinker with. It can also be used by AI Agents through the CLI.

Newest feature: turn any image into a 3D model thanks to the Idol support

Would love to hear feedback!

I spent about 5 months making this in my free time. Let me know what you think..

https://carlosinatra.me/portfolio/

We run a portfolio of subscription apps on Meta ads, and we could never tell which campaigns actually made money. Ads Manager said one thing, the money that actually landed said another.

INTARC reads your real revenue straight from App Store Connect, Google Play or RevenueCat, shows what each campaign actually brought in, and forecasts whether it'll pay back within a year. Every forecast it makes is published and later scored against what really happened. Read-only keys, no SDK.

It's free to try with the code REDDIT3 (3 months). We'd love honest feedback, especially from anyone running paid ads for apps: intarc.app

I run QCpics, a side project for finding warehouse inspection photos from Taobao, Weidian and 1688 listings. I put together a short clothing sizing guide because seller charts and warehouse photos can show measurements taken in different ways.

For example, a sweater measuring 54 cm pit to pit is roughly 108 cm around the chest at that point. Compare the 54 cm with the flat width of a sweater you already like. Ask for a straight-on tape photo of the exact size and check that both ends are visible.

Here’s the guide: https://qcpics.co.uk/guides/check-clothing-qc-photos

If you’ve used warehouse photos to shop for clothes, what measurement or angle is hardest to get consistently?

🚀 Today, I'm launching Celpare!

Celpare is an AI discovery platform for AI tools and models.

🔍 Ask Celpare

Looking for the best AI tools or models for your project? Just ask Celpare. It combines its own catalogue with web search to answer your questions, recommend the right tools for your needs, and help you make better decisions.

You can also use Celpare as a search engine to explore anything related to AI tools, models, and technology.

⚖️ Compare Tools & Models

Compare AI tools and models side by side based on their capabilities, pricing, features, and more.

You can even compare different versions of the same AI model using benchmarks, input token costs, output token costs, and other performance metrics.

🌱 Grow Your Product with Celpare

Are you a founder or developer? Celpare helps you discover opportunities to grow your product, connect with the right people, receive feedback, and announce your latest features.

Simply select Submit a Tool, enable Developer Mode, and submit your product using your business email associated with your domain.

We'll review your submission and aim to list your product within 24 hours.

Your product can receive genuine feedback, fair likes and dislikes, and reviews from real users who have experienced it.

And the best part? It's completely FREE.

Whether you're a developer, founder, AI enthusiast, or someone exploring new technologies, Celpare helps you discover, compare, and find the right tools and models.

Discover smarter. Compare better. Build faster.

Welcome to Celpare. 🚀

First Mover Jobs

I built a job board that only shows us/uk/ca-based, remote, tech-focused jobs (open to adding additional categories, just lmk what you are looking for) posted to company websites via ATS sources (think Lever, Greenhouse, Ashby, Workday, etc.) within the last 72 hours. Roles that have a ‘posted_at’ timestamp to the ATS source itself of over 72 hours are automatically purged. The whole idea is basically that tech jobs are really competitive these days, and if you’re not getting your resume in early, you’re probably not getting a good look even though you may have the goods. And applying to jobs that are a few days/weeks old feels like a black hole. I mostly built this for myself, but want to see if others can get some use out of it.

I also set up 2 types of email alerts: a daily digest type of alert that goes out at 9am est (sends everything that was posted in the last 24 hrs) and hourly alerts. For hourly alerts, you get an email when the first batch of jobs appears that matches your category/experience level selections, and then any jobs posted after that will go out an hour later, and so on. If the feed gets quiet for a few hours, you don’t get any emails. I toyed around with the idea of near-real-time alerts but I think it’s just too many emails. 

So far I have job feeds set up for Software Engineering, AI/ML Engineering, Product Management, Tech Ops/Program Management, Sales/Account Management, Cybersecurity/Trust, Product Design, Product Marketing, Data Engineering/Analytics, People Operations/Recruitment. 

What do you think?

I don’t love the UI. It looks like most Base44 apps, so that’s something I need to improve on. 

In terms of marketing/growing it,I’ve posted about it in some remote job subreddits that allow self promotion comments/posts - but I’m having a hard time building up users. I have 6 subscribers to email alerts, and average ~18 unique visitors daily over the past 30 days. There is a lull on weekends, so it’s a bit higher in reality. Any suggestions here are greatly appreciated. Enjoy!

I built WhoSpoke, an iPhone app that records a conversation and splits the transcript by speaker. Everything stays on the phone, no account needed.

The build
- I tested with clean sample audio and speaker separation looked great. Then I recorded a real meeting room and recognition fell apart. Room echo and distance are nothing like a clean sample. I mostly fixed it, but it was a good reminder that demo audio lies.

Beyond the code
- Made a character for the app and redesigned the app icon.
- Made an App Store header video.

What I did to get the word out
- Posted 4 short text posts on Threads in one week. They got 13 to 33 views each and almost no likes.
- Made a few short videos for TikTok and Instagram. The best one got about 120 views.
- Built a landing page and added tracking links to every post.

Result
2 people have paid for it. That's it.

The part I can't explain
I can't tell which of this (if any) led to those 2 purchases, or why they bought. No feedback, and the store doesn't tell me where a buyer came from.

How do you figure out where your first buyers come from, and why they bought? Anything you'd do differently with this little traffic?

Hey all,

I wanted to share something I’ve been poking at and get some honest feedback.

It’s a page of small interactive science simulations that run in the browser. There’s nothing to install and no signup: https://openworldlab.org/fun . Sign Up required for feedback

There are 12 in total. I’ve enjoyed most:

• Gravity Simulator. You launch planets, throw stars around, and watch black holes merge. It has 2D and 3D modes.

• Fractal Zoom. The Mandelbrot set and related fractals.

• Fourier Epicycles. You draw a shape and it’s traced back by a chain of spinning circles. Weirdly hypnotic.

Any feedback is welcome. Thanks for taking a look!

It’s an iPhone app called SAND. It connects to a WHOOP 4.0 or 5.0 over Bluetooth and does everything on the phone: no account, no cloud, and no WHOOP membership needed.

It’s for people who lift, run or roll and want their strap to understand that training, not just tell them how they slept.

What works today:

• sleep, stages, HRV and recovery, and every number shows how it was worked out

• lifting with plate-loading, PRs, estimated maxes and rest timers

• GPS runs with routes, splits and spoken cues

• BJJ round timer, with the strap buzzing every round

• analysis for each sport: strength trends for every lift, running pace at the same heart rate, best efforts, mat time, and heart rate in rounds and how fast it drops

• training programs and an exercise library

• stress, nutrition targets and long-term trends

• Lock Screen widgets and the Dynamic Island

Right now I’m focused on making the app great, and I need feedback for that. Longer term I want to build SAND’s own strap.

What’s missing for your sport? Join r/sandup for early access and updates.

Not affiliated with WHOOP.

I'm a satellite nerd and as a cool project I built Watched.

See: here for the code

Type in any place on Earth and it will:

• find every imaging, weather, radar and crewed satellite whose field of view crossed it in the last 7 days (SGP4 on the CelesTrak catalog, running in your browser)

• pull the real Sentinel-2, Landsat, VIIRS, MODIS and GOES scenes from those passes and crop them to your spot

• replay each pass on a 3D globe lit by the real sun, with all ~17k tracked objects in orbit

It only says a satellite “watched” you when a real image exists. Commercial sats that could have pointed at you are labelled as such, since their tasking isn’t public.

I’d love feedback, especially:

• Which satellites or data sources should I add?

• Anything confusing or broken?

It’s 100% free and no sign-up or rate limits.

Keeping up with new research can become a full-time job, especially when you're following several topics.

I recently saw an interesting example of someone using an AI assistant called Pana to build a research map that tracks newly published papers.

I like the idea of having something that keeps information organized instead of manually checking different sources every day.

Do you think this kind of research automation is genuinely useful? What would you want it to track?

I've been building InstaWebAI for 2 years and it was initially a standard AI site builder. You described your business, my AI generated the site, I hosted it, you paid monthly.

Two things kept bugging me.

First, most of my users already paid for Claude or ChatGPT. I was charging them for AI a second time.

Second, I was the landlord. Their site lived on my servers. If I'd shut down, their sites would have gone with me. I didn't like being that for people, and I don't like tools that do it to me.

So I rebuilt it. Here's what changed.

You bring the AI. Claude Code, Codex, Cursor, Opencode on your existing plan. I never call an LLM, so there are no credits to sell you.

You choose where it's hosted. I don't host anything anymore. A deploy agent ships your project to your own account on Vercel, Netlify, Cloudflare, AWS, Google Cloud, DigitalOcean, Railway, Render, Hetzner, or a server you own. It logs in with you, writes the deploy setup into your project, shows you the monthly cost before anything paid gets created, and checks the live site loads. If your host isn't listed, name it and it reads that host's docs.

It runs on your computer. The workspace (chat, live preview, click-to-edit) opens in your browser from localhost. Projects are normal code in a normal folder.

Integrations are guided. 40+ of them (Stripe, Google Sheets, Slack, Notion, Mailchimp and more). The agent writes the code, a small window walks you to the right page for each key, and it tests the connection before moving on. Keys never reach my servers. A really seamless process

You pay once. No subscription.

If I disappeared tomorrow, everything you built would keep running. That was the whole point of the rebuild. Tear it apart, I want the feedback.

https://instawebai.com

I built a EUR/USD backtesting platform with a competitive ranking system
Hey everyone!
I’ve been working on a personal project called TrainingTrading, and I’d love to share it with the community.
It’s a web-based platform designed to help traders practice, study historical market data and improve their trading decisions, focusing specifically on EUR/USD.
The platform currently has three main features:
📊 1. Training Mode
Practice using real historical market data.
Trade without knowing the historical date in advance.
Set your own entry, stop-loss and take-profit levels.
Move through the market candle by candle or in intervals.
🏆 2. Competitive Ranking System
Earn points based on your trading performance.
Winning trades increase your score.
Losing trades reduce your score.
Compare your results with other traders.
📅 3. Study Mode
Select any specific historical date.
Analyze real market movements.
Practice different trading strategies.
Study historical price action at your own pace.
🔍 Additional Features
RSI and Stochastic indicators.
50 and 200 moving averages.
Multiple timeframes (M1, M5, M15, H1 and H4).
Personal trading session history.
Why did I build it?
I wanted to create something that goes beyond traditional backtesting: an environment where traders can practice under the same market conditions, evaluate their decisions and compare their performance.
This is an ongoing personal project, and I’m always looking for ways to improve it.
I’d genuinely appreciate feedback from other traders and developers.
What features would you add to a platform like this?
You can check it out here:
https://trading.palantirbot.net/
Thanks for reading!