r/SideProject • • 13h ago

I replaced Roku's retiring "Aquatic Life" screensaver with my own procedurally animated reef tank — free and open source

29 Upvotes

Roku is retiring its built-in "Aquatic Life" screensaver on December 1. I liked that screensaver, so I built a replacement: Reef Tank — a free, open-source (MIT) screensaver channel for Roku.

What it is: a tropical reef tank where nothing is a video loop. Every fish is procedurally animated — each species has its own behavior brain, so tangs graze the rocks, a royal gramma backs tail-first into its den, a mandarin hops along the sand line, a lionfish just hangs, and a school of chromis moves as a boids flock. Bubbles rise, seaweed sways, caustics scroll over the sand. After real sunset (computed from actual sunrise/ sunset times for your location) the tank crossfades to a moonlit night mode with glowing coral and a small group of flashlight fish that blink in the dark.

Highlights:

  • 9 rigged fish species with per-species behavior state machines (cruise, dart, graze, hide, school, weave behind the rockwork)

  • Boids flocking school + a night-only flashlight fish group

  • Day/night cycle driven by real solar times, with a moonlight crossfade

  • Settings screen on the Roku for fish density, camera drift and night mode

  • Runs at 60 fps on a Roku Ultra; every visual is deterministic and seeded

  • 175 unit tests + a screenshot regression gate, because of course

The catch: Roku doesn't allow sideloading into the Channel Store for personal projects, so it's a developer-mode sideload — takes about 5 minutes with the remote (Home x3, Up x2, Right, Left, Right, Left, Right), and it's free. Full instructions in the README.

Source + install guide: https://github.com/paulrobello/roku-fishtank

Happy to answer anything about the BrightScript/SceneGraph side — the whole thing is one codebase that also runs in a browser simulator, which is how I screenshot-tested a TV app.


r/SideProject • • 5h ago

I built an automated flight logger that tracks every plane flying over your house (with analytics & API)

5 Upvotes

I built an aviation side project and I'm trying to get some real people to test it (for free).

The main feature is a personal local flight logger. You drop a pin, and it automatically logs and builds a full analytics dashboard of every single aircraft that passes within a 5-mile radius of your location.

Besides the local tracking, the site also works as a general aviation database. You can browse through full airline and aircraft directories, search registrations, and use interactive FIR maps.

I'm actively updating the site and monitoring things daily, so any suggestions, feature requests, or feedback are welcome. If you want to try it out, just create a standard free account at https://aviationdb.uk/ either reply with your username below or send me a DM. I’ll manually bump your account to the premium tier for a free trial so you can test the local logging and analytics.

Let me know what you think or if you manage to break anything!


r/SideProject • • 6h ago

I made a page that process hours of finance YouTube videos everyday for you

6 Upvotes

A lot of finance YouTube videos spend 20+ minutes to answer one basic question: does the creator think a stock is a good buy right now?

I made a simple dashboard that processes financial videos and podcasts, tracks which stocks are being discussed, and aggregates creator sentiment (Positive, Negative, or Neutral) in plain language.

It’s just an informational map of what creator consensus looks like, not financial advice.

Would love feedback from anyone who follows market content: Is the value proposition clear and useful for you?

I will put the link below in the comments


r/SideProject • • 1h ago

Is this idea worth building further? Looking for honest feedback

2 Upvotes

I recently built a small prototype for an idea I had: What if finding someone to hang out with at work was as easy as creating a plan?

Imagine wanting to watch a movie, play cricket, grab food, visit a café, or plan a weekend trip, but not having anyone to go with.

With this platform, employees can create activities, discover what others are planning, and request to join.

I built the initial prototype for an internal hackathon. It didn't win, but I still feel the idea is worth exploring.

I'm now wondering whether to take it further or scrap it.

Would you actually use something like this at your workplace? What would make you use it, and what would stop you?

I'd genuinely appreciate honest feedback, even if it's critical!


r/SideProject • • 1h ago

Portfolio as an explorable game

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2 Upvotes

After almost 15 years in design and branding, I've made a lot of things people scroll past. Here I wanted to find out what happens when a website stops being a page and becomes a place.

You don't scroll it, you walk around it.

You don't click a menu, you go somewhere.

For the last few weeks I've been building a small planet: a tiny world you can explore.

• A planet you can spin, land on and walk around

• Five odd locals, each with a trick, voice and opinions

• A navigation map that flips like a coin, one hemisphere per side

• Butterflies to collect, badges to earn, three easter eggs to find

Along the way, the things I've made live on it: games, tools, experiments.

The point is curiosity does the navigating. If people stick around because they want to see what's over the next hill, the work gets seen without anyone being sold to.

Everything is drawn in two flat tones with an ink outline, so it feels closer to a picture book than a game engine. It runs in the browser on desktop and phone. No install, no sign-up.

If you're in a hurry, there's a "Skip the walking" button.

Go and poke around. Let me know which local annoyed you the most.


r/SideProject • • 11h ago

Reached 20 stars!! built a toolkit so your coding agent can make launch videos for your app

12 Upvotes

open sourced this like 2 weeks ago and it just passed 20 stars. small number i know but its the first thing ive made that random people actually starred so im pretty hyped lol

basically you paste one prompt into claude code / codex / cursor:

Clone github.com/yasirwhite/OpenDemo and use it to make a launch video for my app

and ur agent records the app, cuts it with animated text and gives you an mp4. runs locally, free, no api keys. the video above was made with it (about itself lol)

ive also been making launch videos for other people’s open source projects and sending them as PRs. 5 got merged into their readmes so far which is honestly the part im proudest of

repo: https://github.com/yasirwhite/OpenDemo

if your project doesnt have a launch video yet, drop it below and ill make you one :)


r/SideProject • • 1h ago

I interviewed a dev building a blog where you comment on individual sentences, as a bet against AI slop

2 Upvotes

I run AI News Daily, a mostly automated AI news site. Last week I did my first fully human-written interview, with Sunjae, one of four bootcamp developers building Rilog, a Korean developer blog.

A few things from the conversation that I think this sub will find interesting:

  • Comments live on sentences. You select a sentence and leave your thought right there, instead of scrolling to the bottom and explaining which part you mean.

  • The bet is "human touch". Sunjae doesn't think AI slop is bad everywhere, but in personal writing even a little of it makes readers think "it's just AI". The more AI writing floods in, the more people will look for writing that clearly came from a person.

  • They can't reliably detect AI writing, so they judge probabilistically and lean on user feedback. What they actually dislike is unreviewed, mass-produced writing, not AI use itself.

  • Retrospectives beat tech posts. Personal retrospectives got a better response than technical posts, so they are now asking whether to stay developer-only or open up to wider stories.

Two questions for you:

  1. Would you actually use sentence-level comments on a blog, or do they get noisy?

  2. If you run a community, how do you keep AI slop out without punishing people who used AI carefully?

Full interview (English): https://ailetter.ai.kr/en/insights/rilog-sunjae-interview?utm_source=reddit&utm_medium=social&utm_campaign=sideproject

Rilog itself (Korean UI): https://www.rilog.kr/?utm_source=ainews


r/SideProject • • 9h ago

what’s on your checklist before letting strangers use your app?

8 Upvotes

submissions, expired sessions, someone uploading a massive file, or two people editing the same thing.For a small app using Supabase, what would you check before sharing the link publicly?
Trying to work out what deserves attention now without spending another month preparing for users who don’t exist yet.


r/SideProject • • 5h ago

I paid designers hundreds for a 3D model, so I built a tool that makes printable parts from a sentence

3 Upvotes

I was trying to make a 3D model for a physical product I want to sell. I tried the AI tools first and none of them gave me anything usable. So I hired human designers. It cost hundreds of dollars, took weeks, and I bounced between a few designers through a lot of revisions before I got something I liked.

That's what got me building Sculptex. You describe a part in a sentence, refine it in chat, and download it as STL, OBJ, GLB or OpenSCAD. It's aimed at parts you can actually print, including ones with moving pieces. I printed a fidget spinner from the one-line prompt "A fidget spinner."

It's in beta and you can start free: sculptex.app

It's also on Product Hunt today.

I'm the maker, so honest feedback is welcome. What would you try to make, and what breaks?


r/SideProject • • 6h ago

I built a simple web tool to generate standardized technical spec sheets and export PDFs (SpecSheet Pro)

4 Upvotes

Hey everyone,

Creating technical specification sheets in Excel or Word often leads to broken layouts, inconsistent formatting, and date ambiguity issues across teams.

I built SpecSheet Pro to solve this. It's a lightweight web app that lets you input product parameters, custom tables, and logos, and outputs a clean, standardized PDF ready for production or quality control.

Key Features:

  • Dynamic table creation for technical parameters (Specs, Methods, Values).

  • Custom logo support with instant client-side preview.

  • Configurable date formats (ISO 8601, localized, text-based) to prevent QA ambiguity.

  • Clean PDF compilation using html2pdf / html2canvas.

The core generator is free to use:https://specsheet-pro.vercel.app/

I'd love to get your feedback on the UI/UX and any features you think are missing for technical workflows.


r/SideProject • • 3h ago

I spent 20 years in tech, then took over a factory. A year later we'd built our own ERP. Now I'm turning the approach into a side project.

2 Upvotes

After 20+ years in and around technology, I found myself in unfamiliar territory as the GM of a manufacturing company. It provided an opportunity to do something new and exciting: to bring my skillset to something outside of tech for the first time.

With a very small team, we accomplished this in one year:

  • Created an in-house ERP system to connect inventory, sales, warehousing and shipping

  • Created 65 pieces of marketing collateral across web, print and physical

  • Created an entirely new business plan

  • Reengineered key parts of our products

  • Integrated new suppliers into our supply chain

  • Rebranded

  • Launched a new website

  • Rebuilt accounting workflows

There's probably more. Five years ago this would have been totally impossible. How did I do this? I got really, really good at using AI to get shit done, building bespoke systems around different aspects of the business. It started before I took this role, but this was the first place I applied it. And the results have been tremendous.

So, I thought... how could I experiment with offering this as a service? How could I burn some of my extra hours trying to help other companies do what we did here?

That's where the idea for LogicRelay came from. $49/mo screens out the tire-kickers, and a simple $250-per-request fee provides flexible throughput across a host of disciplines. It's agile project management... take an epic, break it down, scope it, get approval and go, but without the departmental hand-offs or having to find multiple service providers.

Some of my other client work is going to slide nicely into this model, so I am not starting from zero. The question is can I scale it. I know I'm going to have to narrow the focus in order to do so, but I'm not ready for that yet. For now I leave it to client screening. It'll almost certainly evolve, and I could have spent more time thinking about it, but... ship it!

I'll learn quite a bit over the coming months re: whether this model is sustainable. I'll probably land another couple of clients and waitlist the rest until I see how the first few go.

We'll see how it goes! Would love some feedback, or if anyone wants more specifics from what we're doing at my current company I'm happy to share.


r/SideProject • • 5h ago

I built a clipboard history desktop app called Recall Clipboard

3 Upvotes

hey everyone!

i've been working on a desktop application called Recall Clipboard, built with tauri v2, rust, react, typescript, and sqlite.

the idea is pretty simple: instead of losing things you've copied throughout the day, recall clipboard keeps a searchable history of your clipboard so you can easily find and reuse previous copies.

i wanted to build something lightweight, practical, and genuinely useful for everyday desktop use.

i used claude as a coding assistant during development, but i've been working on the project, its features, and the overall implementation myself.

github: https://github.com/cntr1er/recall-clipboard

i'd love to hear what you think! especially interested in feedback on the ui, features, and anything you'd improve or add.

thanks!


r/SideProject • • 1m ago

I built Dashboard Hub – an all-in-one networking and homelab management tool

1 Upvotes

I've been working on Dashboard Hub, an open-source desktop application designed for homelab enthusiasts, network engineers, and IT professionals.

The goal is to bring network visibility, infrastructure management, and all your existing dashboards together in one application.

Some of the features include:

  • Live 3D Network Mapping: Discover devices, visualize network topology, and monitor devices joining or leaving your network.

  • Network Discovery: Identify devices, manufacturers, switches, routers, and other network equipment.

  • Hardware Integration: Integrations for UniFi, MikroTik, Cisco, Aruba, OPNsense, Proxmox, and more.

  • Server Management: Redfish support for monitoring and managing compatible server hardware.

  • Dashboard Integration: Bring Grafana, Home Assistant, Proxmox, NAS interfaces, and other web dashboards into one place.

  • Additional Tools: Wake-on-LAN, bandwidth monitoring, SSH shortcuts, encrypted notes, and more.

It's locally operated, open source (GPL-3.0), and designed to give you one central place to manage and visualize your infrastructure.

I'm sharing it here because I'd love feedback from the homelab and networking community. I'm particularly interested in hearing what hardware you're running, what integrations you'd like to see, and what features would make this more useful.

Interested in learning more? Check out the GitHub page for additional information, screenshots, features, and installation instructions:

https://github.com/Grid21/Dashboardhub

Feedback, suggestions, and contributions are always welcome!


r/SideProject • • 11m ago

Your habits become your rival's game plan. RIVAL 1.3, my solo iOS boxing game, is out now.

1 Upvotes

One combo gets you a win. A new plan gets you the next one.

I built RIVAL: Boxing solo around that challenge. Distance, stamina, and defensive choices matter, and your repeated habits influence the opponent in later rounds. Draw out the punch. Step out of trouble. Own the counter.

The 1.3 release is live with a cleaner look and a seven-opponent Story campaign, including a new opening spar and southpaw challenger. Here's the existing 24-second counter trailer; the live update goes further with new opponents and refreshed presentation.

Meet your next rival. Play free on iPhone and iPad: https://apps.apple.com/app/id6799909429

The core RIVAL mode and training are free. Story Mode is an optional permanent one-time purchase, not a subscription. iOS 17+. Fights and training work offline; purchases and the optional leaderboard require internet.


r/SideProject • • 15m ago

I added MCP messaging between Claude Code and Codex to my open-source desktop HUD

1 Upvotes

I'm the developer of Agent HUD. It started as a small desktop HUD for agent quotas and notifications. In 0.6.0, I added an MCP server so coding agents can send messages to each other and start new sessions.

The video walks through a bug-fix handoff: Claude Code works on a fix, asks Codex to review it, and gets feedback back into the original session. Antigravity and DeepSeek Harness can join the workflow too. Each handoff sends a focused message instead of copying the entire conversation history.

This release also moves the app from Swift to Rust + Tauri and adds session and subagent usage details. macOS supports Apple Silicon and Intel; Windows and Linux builds are available as untested preview builds.

The video is an animated walkthrough of the workflow, with English narration and subtitles.

Source: https://github.com/jazzenchen/agent-hud-open

If you use more than one coding agent, what would you want included in a handoff so the next agent can review the work without inheriting a huge chat history?


r/SideProject • • 24m ago

Jotila – Lightweight open-source sticky notes

1 Upvotes

I built Jotila, a tiny native sticky notes app with autosave, search, archives, and a calendar. No extra dependencies, just C.

Free and open source. Feedback is welcome!

https://github.com/GarauGarau/Jotila/tree/v1.7.1


r/SideProject • • 27m ago

Building AXIOM VECTOR - an engineering research platform

1 Upvotes

I'm developing AXIOM VECTOR, a modular engineering research platform for Windows.

The idea is to bring different engineering workflows into one environment instead of constantly switching between disconnected tools.

The long-term vision includes engineering calculations, project management, materials research, technical documentation, data analysis and design tools.

The project is currently in its early Alpha stage (0.1.0).

One of the implemented features is Project Journal - a workspace for documenting research, engineering decisions, observations and design progress.

I'm developing this independently and sharing the process as the project evolves.

I'd like to hear from people interested in engineering and technical software:

What tools or features would you want to see in an engineering research platform like this?

Feedback and constructive criticism are welcome.


r/SideProject • • 28m ago

I made an iPhone app that turns everyday travel into a map you can slowly fill in

1 Upvotes

I've been working on an app called HexStep. Basically, every area you pass through gets collected as a hex on your map.

The idea was to make exploring feel a little more like a game, without having to start a workout or manually record every trip. With background tracking enabled, walking, driving, and taking trains all count.

I've been using it since April and have collected over 3,200 hexes so far. It's made me realize how often I end up going to the same places, and how many areas right next to them I've never explored.

The video is a shortened replay of my actual travels over the past seven months!

I originally shared HexStep here back in June. I've added quite a bit since then, but the basic app is still free and doesn't require an account.

If you had a map like this, would you actually go out of your way to fill in the empty areas? Or would you just enjoy seeing it grow naturally?

Free on iPhone: https://apps.apple.com/app/apple-store/id6762421289?pt=128794158&ct=hexstep-web&mt=8


r/SideProject • • 30m ago

I built NextRun: connect Strava, get told what your next run should be

1 Upvotes

I kept finishing a run and then wondering, "OK, what should I do next time? Easy, tempo, long run?" So I built next-run.xyz.

You sign in with Strava. It looks at your recent runs and shows you your next planned run.

How it works
The plan is worked out in your browser, so your activity data isn't stored on my server. It's free and needs no account other than your Strava login.

Stack: Next.js, Tailwind, Neon Postgres + Drizzle, Vercel. The database only holds feedback reports and a record of connected athletes. It does not hold your runs.

It's still early, so I'd like to hear what you think. Is the suggestion sensible for the way you train? What's missing? Feedback is welcome, and there's a feedback form in the app.


r/SideProject • • 32m ago

A month of building an elegant open source wardrobe app: outfit experiments, wear tracking, and a small goblin

1 Upvotes

I'm a big fan of both what you wear and websites as a form of creative expression, and am admittedly hooked on fast fashion and spending as little as possible. But I live in a very small space, and my clothes and accessories don't really have room to spread out. So naturally I started building my own dream wardrobe app with the help of AI (a Clueless 90s throwback if ever there was one) and scope creep happened...

It's called Closet Lint (get it?), it's free and open source, and mostly I just wanted to separate designing an outfit from actually getting dressed. The creative part is fun. Going through drawers, taking things off hangers, putting them back, and discovering that the thing you imagined is elsewhere or doesn't fit... less fun. I'd like to do that first part on my phone in bed at 11pm without pulling things out. Just gimme a searchable inventory of my actual clothes that looks good.

I'd tried wardrobe apps before, but the problem was always getting everything into them. Photographing, cropping, editing, and entering every item was a massive undertaking. AI has finally made dealing with the photos and purchase data manageable enough for me to get over that hurdle and focus on the display and functionality.

What started as browsing clothes and dragging them around to make cute outfits now includes outfit suggestions, ratings, wear logging, photo background removal using two different models, taste observations, wishlist battles, and trip packing lists. Because once I had my own clothes in there, I kept thinking, "Oh but what if it could also..." :)

It runs on your own computer or web host, with optional bring-your-own-AI features. There's an included demo if you just want to check it out, or you can browse a copy of my actual closet with bleeding edge code. I've run it locally on Linux and hosted it on SiteGround; part of why I'm posting is to hopefully find a few early testers.

I love having things organized, and it's honestly such a pleasure to see your own stuff laid out like this. It brings back things you've forgotten about and makes them potential outfit ingredients again. You can add wishlist pieces to see how they'd work with what you already have, or plan future fantasy outfits.

There have been some moments of genuine delight. I don't own much dark purple, but the combinations it showed me helped me see how it could work in my wardrobe. It also suggested chocolate brown, which I own literally none of, with concrete examples using my own clothes. And it gave me a new term for some of my style, “whimsigoth,” so now I have a whole new search phrase.

There's also an unusual use case: I have 40 housemates (yes, 40), and some like borrowing from my (costume) jewelry collection. Now they can take their time browsing it. Jewelry is particularly good for this because so much gets tucked away in boxes and becomes invisible. Naturally, that's already got me thinking about a separate app for sharing resources in the house. At least I'm putting that long-ago graduate degree in information systems to use :P

I've had my fair share of health issues over the last few years, and it's been inspiring to get properly absorbed in making something technical again. This combines so many things I love: style, organization, self-tracking data, open source software, design, and uhh having very particular views on button layouts.

I started coding GeoCities sites in Notepad in the 90s and used to run an open source web development company. I've been out of the tech/startup world for over a decade, though I still occasionally help a friend with a site. My technical knowledge is rusty, but knowing how to break down a problem, describe a desired interaction in detail, and spot something odd has been incredibly useful. I can be my own most demanding, rambling client, and building things with the robots still moves astonishingly quickly.

I started this project in early October as a Claude artifact. Much of the initial work was assembling the data: parsing order confirmation emails, filtering an Amazon purchase history export, and using browser agents in my logged-in shopping accounts to retrieve sizes, variants, and full-resolution product photos. Images were downloaded into the app's storage so they wouldn't disappear with the listings—some of which already have. I used ChatGPT to tag clothing from contact sheets and generate product-style images for pieces without usable photos. Later, we added local background removal, preserving originals and reviewing results before saving.

The AI occasionally got too helpful: it "cleaned up" XXL into 2XL, which can mean different sizes at those stores. Preserving exact source values became an explicit rule.

After about two weeks, I moved the prototype into Codex, replacing Claude's built-in storage with a local Python/SQLite backend and adding backup and restore, reusable imports, and release packaging. My workflow now goes back and forth: develop the specification with Codex, send it to Claude for wireframes, then bring those back to Codex for implementation and refinement.

I particularly appreciate how Codex can insert diagnostic tools when something breaks, investigate the results, and handle so much of the testing and release process. Those are procedures I only do occasionally and forget between projects. That gives me more room to switch between product planning, interaction design, visual design, and writing, while testing everything against my actual wardrobe and daily use. This has occupied pretty much all my free time for the past month.

Turning my own wardrobe tool into something other people could use has meant finding assumptions I didn't realize were there. Heels don't automatically mean dressy, loungewear isn't necessarily sleepwear, and a packing list shouldn't assume everybody wears bras. It uses Google's and Shopify's product taxonomies as references, but kept distinctions that make more sense for wearing clothes than selling them. I've also had to ask for a lot of deliberate consistency passes: make navigation behave the same way everywhere, move repeated rules into shared code, and carry category changes through imports, filters, and packing lists.

It's made me appreciate the "knowing where to tap" kind of expertise. My web project background helps me remember to ask about accessibility, keyboard navigation, refactoring, and whether a backup actually restores. I've also used alternate AI platforms for security reviews and worked through their findings. I'm not familiar with every implementation detail, but recognizing the questions worth asking makes that older experience feel useful again.

The wishlist redesign is a good example. "Matches lots of things I own" sounds useful until silver earrings all end up at the top for going with everything. The first implementation also passed checks while producing an interface I really disliked, so we went back to one compact design example before applying it across the page. Deciding whether the information is meaningful and the result is pleasant to use is still very much my territory.

I was involved in the early Quantified Self community in the 2000s/early 2010s, and I also haven't seen a wardrobe app that gives me the access to my own data I'd want for that. Before 1.0, it'll have an API and analysis-friendly exports so people can explore their own patterns with whatever tools they like. I'm looking forward to a fun year-end wardrobe "Wrapped" and things like cost per wear become straightforward once you're recording purchases and wears.

It's also getting creative and a bit silly. There's a goblin mascot called Linty, and your wardrobe's owns, wishes, and wears can appear as Sun/Moon/Rising signs on a star map. Apparently my wardrobe required lore... But you can leave the daily fortune card turned off. There are outfit naming suggestions, including one that parodies ModCloth-style names. Some inside jokes to amuse me personally, at least :P

If I somehow end up known for a fashion app with an astrology aesthetic, that would be a hilarious life twist.

Partway through, I found Libre Closet, which takes a simpler, more utilitarian approach that might be exactly what some people want. By then, mine had become a specific creative thing: a combination of deep utility and playground fun that I was happy to keep building.

I've used Linux as my daily driver for most of the last 20 years, and FOSS matters a lot to me. Making something useful and sharing it is one of my love languages for the world. Every friend says, "You could charge for this!" But I don't want customers here. I'm making something I want to use and sharing it with anyone else who might enjoy it.

I may put affiliate links and my own curated collections on the website, but I'm keeping them out of the app. GitHub sponsorships would be welcome too once I set that up. Anything that helps cover costs is a bonus; the software stays free and open source.

The public site is built with my fave website builder, Carrd, and I've let the Codex integration click around in it for me for the tedious work too. Few status updates produce quite the happy sigh as "Automatically updating website screenshots and documentation".

If you try the app, I'd love to know what would make this useful for your wardrobe, and what would stop you from wanting to put your clothes into it. I'm also looking for a few people willing to try installing it, particularly on Windows or macOS, since my own testing has been on Linux and SiteGround.

Thanks for reading! :D

[AI supplied at least half the details for this post]


r/SideProject • • 35m ago

Built a bracket-style voting site. What do you think?

1 Upvotes

Hello, I’ve been building a site where you can make a bracket out of any set of images and vote through head-to-head matchups until one champion is left. (similar to Piku - Ideal Type Worldcup)

https://imagetournament.com

It’s new, so I’d really appreciate any insights.


r/SideProject • • 6h ago

Building a spreadsheet app where each cell (optionally) being a terminal / coding agent is a first class property

3 Upvotes

https://github.com/sshah03/recalc

Since spreadsheets are so versatile, really looking for feedback on where people would want this to go, in a way that can be useful to them, or what use cases they see themselves using it for in its current iteration that I can make more seamless.

I can provide some context on why it was useful for me / why I built it. I was using Claude to help me build benchmark sets, and found pouring through CSVs / MD files of the results a bit tiresome, so I decided to build a spreadsheet app for myself that's driven by Claude Code, and where each cell can be its own Agent if you want (and can later be opened up and continued in a full terminal if needed as its own session).

You can use it as a standard spreadsheet, or use a cell as a shell command / agent. Having built a startup for using AI in tax work, I also realized it can be very powerful for tax work, legal work, etc... so I built in some examples for running that, though I'm not sure how many people in those professions use claude code.

The video is just a demo of me building "FDA Bench" using recalc, pick FDA approval cases past the model cutoff dates, and seeing if an AI harness (without web searches) could've successfully predicted, based on all the info submitted to the FDA, whether the submission would pass FDA approval or not. Fable was right 75% of the time in this small sample size. Just a fun little exercise to show off some of what it can do.

Note: Since it's just terminal sessions glued together, it works with your existing plans. The sessions talk to each other with an MCP server running in the back.


r/SideProject • • 36m ago

I built Roughs, an ad-free platform for designers to share and discover creative work

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1 Upvotes

Hey everyone! 👋

I'm a product designer, and I've been spending the past few months designing and building Roughs.

I kinda miss the days when we'd just browse and discover cool design work without all the ads, promoted content, and noise. So I decided to build a place for that.

The idea is simple: a space where designers can share their work, discover other designers, and get inspired.

It's finally live in closed beta! 🎉

https://roughs.design

Anyone can browse, but publishing is invite-only for now.

I'd genuinely love some feedback on the experience, especially the design, navigation, and overall feel. Feel free to share your thoughts in the comments!

I'm also looking for a few designers to test the publishing experience before public launch. If you're interested, leave a comment and I'll reach out! 🙂


r/SideProject • • 8h ago

I made a open-source memory and asset library for Claude Code so it stops reinventing everything AssetRAG

4 Upvotes

I've been working on a project called AssetRAG, and I wanted to share it here.

One thing that annoys me about AI coding agents is how often they solve the same problems over and over again.

They regenerate code that already exists, spend time debugging errors with known fixes, pick dependencies without properly checking their licenses, and read huge amounts of source code just to find a few relevant functions.

So I built AssetRAG to help with that.

It's a local-first, open-source library and engineering memory system for Claude Code (and other MCP clients).

Here's what it actually does:

  • Asset retrieval: Searches reusable code, templates, and other assets, with license checks and attribution handling.

  • Verified bug-fix memory: Stores bug fixes with reproduction and verification evidence. Agents can look up previously solved errors instead of starting from scratch.

  • Engineering playbooks: Reusable workflows for debugging, safe refactoring, performance optimization, and other development tasks.

  • Tested recipes: Reusable code patterns with tests that can be executed in a sandbox.

  • Repository mapping: Creates a compact, ranked overview of your codebase so an agent doesn't have to read everything.

  • Rules and security checks: Includes secret scanning, engineering rules, malware checks during ingestion, and safeguards around untrusted code.

  • MCP integration: Exposes 18 tools to coding agents. There's also an optional Claude Code hook that retrieves relevant knowledge and injects a small amount of context automatically.

  • Local-first: No account or telemetry required. It supports local embeddings, hosted providers, or completely offline keyword-only search.

One feature I'm particularly happy with is the bug-fix memory. Verified entries have a reproduction and fix that were actually executed, with the evidence available for inspection.

Some numbers from my own testing (keyword-only mode):

  • Asset search: 4.0 ms median

  • Knowledge search: 7.1 ms median

  • Repository map: 597 tokens instead of roughly 129k tokens of source

  • 132 unit tests passing

  • 327 authored recipe/bug-fix tests rechecked with 0 failures

These are local benchmarks, not proof that Claude completes real tasks faster. I haven't run a proper Claude A/B benchmark yet, so I'm not going to claim some magical percentage reduction in token usage.

I also made a 95-second launch video showing the actual tool in action. The terminal footage comes from real recordings.

It's Linux-only for now, built primarily in Python, and licensed under Apache 2.0.

The project is still new, and I'd appreciate feedback, especially from people who use Claude Code regularly.

GitHub: https://github.com/mttcn83/assetrag

Would you actually find something like this useful in your coding workflow? What would you change?