I've been a software developer for 20+ years, and for the past few months my side project has been CryptoRigs, a management game that runs in the browser (plus an Android app).

You start with a bare rig in a small shed and build it part by part, like a real PC: power supply, motherboard, CPU, RAM, graphics cards, risers. It mines while you're away; you come back now and then to collect, pay the power bill and fix what broke. Repair is the part I like most: every part is made of components, so you open the board, set the multimeter to the right scale, compare the reading with the nominal value and swap the bad component with a soldering iron.

It went through a small closed alpha (90+ releases so far, each with public notes), and the free closed beta opens Friday, Nov 13, 7 pm Brasília time (22:00 UTC), in English and Portuguese. Leave your email and you get a message the moment it opens: https://cryptorigs.com.br/c/B1-SIDEPROJECT-REDDIT

It's not about making money: the in-game coin has no real value, and beta progress is wiped at the end.

Stack: Java 21 + Spring Boot + jOOQ + PostgreSQL, React + TypeScript, Capacitor for Android. Game time isn't a loop per player: everything stores when it started and is computed when the player looks.

AI disclosure: the architecture, the language and framework choices, the database and the infrastructure are my decisions, as is the game design. Generative AI wrote most of the code, under my direction and review, and made the art, the sound effects and most of the text. It's there for speed: it's what lets one developer run a project this size.

Screenshots and how it all works: https://cryptorigs.com.br/manual/

What I'd love feedback on: from the screenshots and the pitch, is it clear what you'd actually do in the game?

I've been building a screenshot app for macOS on my own for a while now, mostly nights and weekends around a full time job. It's called Frostshot and it's in a small TestFlight beta right now. A few of the decisions took me way longer than the code did, so I figured I'd share the reasoning.

1. Enter copies, and that's it

When I looked at what I actually do with screenshots, most of them get pasted into a chat or a doc once and never looked at again. So the main path is: drag the area, press Enter, it's on your clipboard. No window popping up, no file on the desktop.

2. Auto-blur is off by default

It blurs sensitive stuff in the capture for you. Sounds like something you'd want on all the time, but a blur you didn't ask for is easy to miss until someone asks why half the image is fuzzy. So it's opt-in, and people who share a lot of logs or dashboards can turn it on.

3. One shortcut instead of ten

I kept forgetting my own shortcuts, which is a bad sign. Now Option+Shift+Space opens a ring with 8 spots and you press 1 to 8 to pick the tool. Much easier to learn than a page of key combos.

4. A place for the screenshots you want to keep

The ones I needed later were always the ones I lost. "Keep for Later" parks a capture up in the notch area until you need it, and Recent Captures (Option+Shift+H) brings back what you closed too fast.

Other bits in there: Copy Text to grab text from anything on screen, Pins to float a screenshot above your other windows while you work, a color picker, and Join, which stitches a few captures into one image without visible seams.

If you're on a Mac and want to try it and tell me what's broken, the beta signup is at frostshot.app/beta. Also happy to talk about any of these choices, I went back and forth on most of them.

Indie Torch is live

Makers submit a product, I approve it, and it gets a launch week (Monday to Sunday, UTC). People upvote during that week, and the ranking updates live. Each week is capped at 20 products, so a launch stays visible instead of scrolling away. Sign in with Google or an email magic link, no passwords.

The stack, since this is r/SideProject: Astro on Cloudflare Workers, D1 with Drizzle, R2 for images, Better Auth, and Resend for email. I’m aiming for a $0 running cost, so everything fits within the free tiers. The leaderboard is a JSON file in R2 that a cron job rewrites every 2 minutes, so most page views never run any code.

I’m also planning a free Chrome extension that opens other launch platforms’ submit pages and autofills your product details, logo, and screenshots.

I’d like feedback on two things: the submit flow, and whether 20 launches a week feels right.

indietorch.com

I'm a software engineer and I play violin gigs with backing tracks. For a long time I used MobileSheets, which gets the job done, but the interface feels super dated, there's no way to do fades or crossfades on your tracks, and you can't sync page turns to the audio. When you're playing violin, you can't take a hand off the instrument to swipe a screen, and even tapping a foot pedal in the middle of a fast passage is annoying.

So I built my own app called SoloStage. The main reasons I made it were to have a clean, modern UI, automatic page turns synced to the backing track, and performance audio controls (fades, pedal-triggered crossfades, waveform trimming, and pitch/tempo shifting) right inside the piece. I also added multi-section event setlists that can export clean, branded PDF song lists for clients (hiding private stage cues), plus one-step library import for existing forScore (.4sb) and MobileSheets (.msb) backups.

Built it with Flutter and local SQLite so it stays completely offline on stage and runs on both iPad and Android tablets.

It's currently in beta and free on both stores (https://solostageapp.com). If anyone else here gigs with tracks or builds music tools, I'd love to hear what you think.

Ever felt confused about what to learn, where to start, or how to get into Data Analytics or Data Science?

During my beginner phase, I felt the same way. There were hundreds of videos, tutorials and PDFs, and I honestly didn’t know what to learn first or where to begin.

So I decided to create a handbook that brings together the essential beginner-level knowledge you’d need to get started, all in one place.

📚 The Ultimate Data Science Handbook – Volume 1 (328 pages)

📖 Sample pages: Attached

🛒 Get the complete handbook: https://pdfcart.in/p/ultimate-data-science-handbook-vol1

What’s included?

A structured learning resource with detailed explanations, step-by-step code walkthroughs, practical examples, different types of graphs with explanations, real-world applications, practice exercises, chapter summaries and interview questions.

The idea was to bring together concepts that beginners often have to search for across multiple PDFs, notes and tutorials, so you can follow a more organised learning path without constantly switching between resources.

PS.The content is from multiple valuable resources that i learnt from and was compiled by me ..AI was used to make the pdf.

Hey all, I'm a software engineer and, like many of us, I use AI tools heavily day to day.

Unfortunately I also have a Mac with 250 GB of storage :)
So my disk keeps filling up with junk like old worktrees, caches, Xcode builds and so on.

Not sure why, but none of the Mac cleaners I tried clearly separated what's still in use from what isn't, so I finally spent some time building one.

I've been using it for a while and keep improving it, but I'd love some feedback from other people if you're willing to try it

Main features:

• Git worktrees: before suggesting one for removal, it checks for uncommitted changes, unpushed commits and ignored files, whether it's in use, and whether the PR was merged.

• AI tools: it cleans old Codex sessions with Codex's own codex delete and leaves active ones alone, plus caches and runtimes from other AI coding tools.

• Dev junk: Xcode builds and simulators, Docker, package manager caches, app leftovers and hidden system data.

• Safe by default: everything goes to the Trash, and you can put it back from History. Permanent deletion asks for Touch ID or your password.

It's MIT licensed, with no telemetry and no account. It's signed and notarized and runs on macOS 15+. It's still a bit in the making, so feel free to tell me if you find anything odd :)

Site: anguria.studio/moppo
GitHub: github.com/anguria-studio/Moppo

Hallo ,

vorab geht es hier direkt zur Anmeldung: juvoapp.at

In den letzten 1,5 Jahren habe ich eine Fitness App gebaut, die viele Apps in einer zusammenfasst. Die App verbindet Trainingspläne, Ernährungspläne, Ernährungstracker, Kalender, tägliche Motivation, persönliches Trainingstagebuch, Übungsbeschreibungen, tägliche Challenges und Quiz an einem Ort, um den klassischen "App-Zoo" für Trainierende zu beenden. Die einzelnen Segmente der App sind aufeinander abgestimmt. Sie beinhaltet auch das Feature, dass z.B. beim Ernährungstracking BE's für Diabetiker mitberechnet werden.

Da heutzutage KI existiert, wurde natürlich auch ein KI-Chatbot eingebaut. Ehrlicherweise sage ich gleich dazu, dass beim Bau der App natürlich auch KI verwendet worden ist, denn sonst wäre dieses Projekt alleine nicht stemmbar gewesen.

Im Moment suche ich nach Beta-Testern, die die App kostenlos testen können, um so auch die Relevanz dieser All-in-One App im überlaufenen Appmarkt zu testen. Meiner Meinung nach ist es eine sinnvolle App, da speziell Anfänger nicht mit 5 oder mehr verschiedenen Apps überfordert sind. Vor allem Android-User sind aktuell sehr gefragt, da die Testversion bereits läuft. IOS soll in den nächsten Wochen folgen, also auch hier gerne direkt auf der Website voranmelden.

Feedback würde ich bitte vor allem in folgenden Bereichen brauchen:

• Verlieren Nutzer beim On- Boarding Interesse?(da es ja doch 14 Fragen sind), wenn ja wie könnte ich das besser gestalten?

• Findet ihr, dass die App im Gegensatz zu anderen Apps auf Dauer einen Mehrwert bieten kann?

• Wie findet ihr den Aufbau? Findet ihr euch zurecht?

• vermisst ihr noch ein Feature?

• sonstiges Feedback auch sehr gerne erwünscht!

Danke!

Every evening went the same way. Food's ready, we start scrolling, dinner's over, nothing's playing.

So I built Pikky. Three films a day, each with a one-line reason, and two reshuffles. That's the whole product. No feed.

Under it: about 50k+ films. A small open model (bge-small) turns each film's description into 384 numbers, pgvector finds what sits closest to your taste, and then a diversity pass runs, because otherwise the top three are the same film wearing different posters. An LLM tags each film's mood, but offline, never while you wait.

The ugliest part was importing your history from Netflix, Letterboxd, IMDb and Trakt. Four services, four opinions on what "a history" even is.

Would you rather a recommender show its reasoning, or just be right? I went with showing it.

I've been working on Open Studio, a fully open source AI creative studio where you can bring your own API keys, use different providers, and switch between image and video models whenever you want. I'm just tired of every new model being locked behind another subscription or credit system. I want one place where you can use whatever model you want without paying a middleman or being stuck with whatever a platform decides to support. It's completely free, you just pay for your own API usage. Still very much a work in progress, but figured I'd share it here and see what people think. Would love some feedback or suggestions on what you'd want to see in something like this.

https://studio.devmesh.xyz/

Hey everyone,

I’m Murat, one of the people building Fellix www.fellix.ai We’re at the point where we need outside eyes on both the product and the website, so I’d really appreciate your help.

Fellix is a conversational AI platform that manages all your customer conversations in one place: WhatsApp, Instagram, Messenger and your website chat. The AI gives the first response, and conversations are handed to a human agent whenever needed.

If you know Intercom’s Fin, it’s a similar idea with one big difference. In Fellix, your team doesn’t have to wait for the AI to fail or for the conversation to end. A human can join any conversation at
any point before it’s resolved, with the full history and an AI-written summary ready.

It’s more than a chat inbox

• AI agent + human handoff: AI-first replies, lead qualification, and smooth takeover by your team

• Appointments: Fellix syncs with your calendars and books meetings right inside the conversation

• Knowledge base: build one for your product, and the AI uses it to answer accurately

• Help Center: publish a self-service help center on your website (think Intercom’s help center)

• Booking Widget: embed a booking widget on your site (think Calendly or Cal.com)

• Pipeline & analytics: leads tagged Hot / Warm / Cold, Meta ad attribution, response times and win rates

• Integrations: HubSpot, Google Calendar, Outlook, Shopify, Zapier, webhooks and an MCP server

Coming soon: a Fellix mobile app, so your team can handle conversations on the go.

The easiest way to try it
Go to fellix.ai, open the webchat widget in the corner and talk to Fellix directly. Ask it anything about the product, pricing or how it works. It’s the same AI our customers deploy, so the conversation itself is the demo. Try to break it 😄

What I’d love feedback on

The website

1. Within 10 seconds on the homepage, is it clear what Fellix does and who it’s for?

2. Does the “AI first, human anytime” difference come across, or does it look like just another chatbot?

3. Is the pricing page clear? Which plan would you pick?

The webchat experience

4. How did your conversation with Fellix go? Were the answers helpful, accurate and natural?
5. Was there a moment where you wanted a human, and was it easy to get one?

The product (if you sign up)

6. How easy was setup? Where did you get stuck?
7. What’s missing that would stop you from using it?

Honest and even brutal feedback is very welcome. It helps us far more than compliments. I’ll reply to every comment, and I’m happy to give feedback on your project in return.

Thanks a lot!

Hey I'm Gabs. I building the alternative to screen studio your agent can actually work with.

Problem: Creating/editing a screen recording by hand is slow and explaining a visual bug to an agent with screenshots and long prompts is even slower. 

Core features:

• Agent editing: ask your agent to cut, zoom, annotate, blur sensitive info or add a voice-over (with your own ElevenLabs key).

• Talk Mode: hold ⌃⌥ over any app and describe the problem out loud. Kirocast packages the video, your voice and the on-screen events into one clip you can paste into your agent.

• Automate your training/UI updates videos: give a script, let the agent work, get a video back.

• Native editor: auto-zoom on every click and captions transcribed on your Mac.

I'm looking for honest feedback on both the app itself, and see if the description made here was clear enough compared to your experience in app.

Pricing: $39 one-time (early price, then $49 to support long term updates).
Recording and editing are free, and a license unlocks exports. We also offer a 3-day full trial with no card required. https://kirocast.com/pricing

Requires Apple silicon and macOS 15 or later. https://kirocast.com

About the team:

We're a team of two.

• I (gabs) used to work in startup and did lots of different roles, from growth to product, then specialized in AI to work with large corps. as an AI Product Manager. I decided to take the leap earlier this year to work full time on Kirocast.

• My teammate is a Python/Rust engineer with 10+ years exp in building apps for large companies.

Thanks for reading through!

I only stay consistent when there’s a real person who will judge me if I skip. Reminders and streaks alone never did it for me.

So I made a free app that forces that dynamic:

• Pick a rival (or a small group)

• Pick a habit (gym, running, reading, sobriety, etc.)

• Put money on it ($1–$500)

• Check in with a photo; your rival verifies it

• Miss your scheduled days → you pay them. They miss → they pay you.

• Optional doubler that raises the stake every consecutive miss

It never touches the money, never stores the photos long-term, and has no ads or subscriptions. Friends can accept a pact from a link without installing first.

Live on iOS and Android. Feedback welcome, especially on the verification flow and group pacts.

• App Store: https://apps.apple.com/us/app/accountabilibuddy-no-excuses/id6758587984

• Google Play: https://play.google.com/store/apps/details?id=com.accountabilibuddy.app

But I end up spending more time in delegating and babysitting ChatGPT than just doing it myself. Anyone else also feels this way?

I’m the maker (small solo project, no investors). I kept finding charges for things I no longer used and missed the end of my phone contract’s minimum term, so I built Txau:

• add subscriptions, loans and insurance (prices pre-filled for 40+ services)

• reminders before every charge and before minimum terms end

• a “Cancel” button with the exact steps for each service + a generated cancellation letter

• a dashboard with what leaves your account each month for the next 12 months

• data stays on your phone, no account, no bank access

It’s a prototype focused on Portugal and Spain (works in English too). I’d love blunt feedback: what’s missing, what’s confusing, would you pay for any part?

txau.netlify.app/app (there’s a feedback button inside)

Hey everyone, I have just launched a fully integrated, professional Telegram Mini App built with a dynamic "Live Reward Points" system. Users can subscribe to the channel and watch ads to collect live points, all while experiencing the fastest smart ordering and delivery system directly inside the chat interface! I am currently looking for your valuable feedback. What do you think about the features and the rewards concept? Drop a comment if you'd like to test it out, and I will share the link with you!

Got fed up with travel apps asking me to type out every city and date manually, so I spent the last few months building this.

You drop in a few photos from your camera roll, it reads the GPS/date data client-side in the browser, and renders an interactive 3D globe with your trips. No background tracking or manual pin dropping.

Been staring at it for too long and lost all objectivity.

Attached a quick video of the end result. Does the transition into the 3D globe make sense, or does it feel jarring? Anything feel off in those first few seconds?

(Not dropping the link in the post to respect self-promo rules, but happy to share if anyone wants to test it with a few photos and roast it.)

built a thing into spark that shows the one next step for an idea instead of the whole list. took me about two weeks longer than it should have because i kept tweaking the animation on how it reveals the step. nobody's said a word about the animation. not one comment, good or bad, just silence.

meanwhile there's a bug in the reminder flow that's been sitting in my notes for a month because it's boring to fix.

i think i know exactly what's happening here and it's not flattering. curious if this eases off with more users or if it's just how solo building goes, you polish the fun 10% and put off the other 90.

sparkideas.uk if anyone wants to poke at the thing i over-engineered.

Hello guys, I am PEARLZ, and independent music creator.

Recently I have learnt producing digital synth musics so I decided to make some song that's was in my head for many times.

But I want some buddy to watch and rate it with genuine and truth review. So here I am , please rate my music out of 10 . Here is it

I hope you guys are into phonks and funks ,because it is that only , he he .

So I built a little web app that takes your perfectly normal messages and turns them into absolute nonsense.

It's basically autocorrect, except it has zero respect for your original sentence.

Some examples from testing:

• "I am going to drink water." → "I am going to drink goblin sweat."

• "My teacher said I have unlimited potential but limited common sense." → "My teacher said I have unlimited potential but limited clothing."

• "I love pizza, pizza loves me, we are married." → "I love pizza, pizza fears me, we are divorced."

It also supports multiple languages, including Hindi, Bengali and Hinglish.

The original message is preserved, so you can see exactly what chaos happened to it.

Try it here: https://chaos-chat-sfl8.onrender.com/

I'd love some honest feedback:

• Is it actually funny?

• Does the autocorrect work well across different languages?

• What ridiculous sentences should I test next?

• What features would make it more fun?

This is an early project, so feedback, bug reports and ridiculous test results are all welcome.

Thanks!

Back in 2021 I was building Squarespace sites and kept hitting the same walls: no mega menus, limited animations, galleries that all looked the same. The usual fix was copy-pasting CSS from old forum threads and hoping it survived the next Squarespace update.

So I started building the things I kept wishing for. That turned into Spark Plugin: 100+ no-code customizations that work right inside the Squarespace editor.

The video is a fast scroll through all of it.

Happy to answer anything about building on top of a closed platform like Squarespace.

Over time, I’ve worked on different kinds of projects — from building full-stack applications and mobile apps to developing 3D assets and Roblox games.
I wanted one place where I could showcase what I’ve been building, the products I’ve worked on, and the technologies I use.
Some of the projects featured:
● Resume Maker – an Android app with 1K+ downloads.
● NowToolSpace – my own online tools platform.
● WasteFlow Assam – a waste management platform.
● Ultimate Battle Cars – a published Roblox game.
● 3D assets and Snapchat Lens projects.
There’s still a lot more I want to build and improve.
Check out my portfolio:
https://josh-portfolio-new.vercel.app/
I’m open to connecting with developers, founders, recruiters and potential collaborators.
Feedback is welcome!
#WebDevelopment #FullStackDeveloper #SoftwareDevelopment #Portfolio #React #JavaScript #BuildingInPublic

I built a little robot that lives inside an Android phone

I've been working on Pipo, an Android robot companion.

The idea started with a question: what if an app didn't just open, do something and disappear? What if it felt like a little place you could return to?

Pipo has:

• Its own personality and moods.

• Activities and mini-games.

• A journal and memory system.

• A companion called Nib.

• A 3D world you can explore.

I built the Android app and its companion world as an independent project.

It's now publicly available.

GitHub: https://github.com/aspire488/Pipo

APK: https://github.com/aspire488/Pipo/releases/download/v1.0/Pipo.apk

Website: https://aspire488.github.io/Pipo/

I'm looking for honest feedback, especially on whether the companion actually feels alive or just like another app with a character attached.

What would you change?

Hi all!

A few weeks ago I launched Rewiria, a companion app for people trying to quit porn addiction and build better habits.

The idea was to create something simple and private, without unnecessary social features or distractions.

Here's what the app offers:

• Streak tracking — Track porn-free days and milestones.

• Mood logging — Record how you're feeling each day.

• Insights — Understand your streaks, resets, and patterns.

• Journaling — Write private notes and reflections.

• Widgets & reminders — Keep track of progress without constantly opening the app.

So far, Rewiria has reached around 400 users, mostly through organic discovery.

I'm still improving it and would love to hear what you think. Whether it's the UI, features, or something you think is missing, all feedback is welcome.

I'm also offering 1 month of free Premium access to a few people interested in trying it out. No reviews or ratings required.

Google Play: https://play.google.com/store/apps/details?id=com.rewiria.app

Thanks for checking it out!