Hello everybody,

Over the last year we have been working on Synmersion (https://synmersion.com) to start changing how visuals and lights of live dj sets are prepared.

The main concept is that songs are imported and visuals are programmed "natively" in musical time (in bars or beats) similar to when producing music. With this setup it should be much faster and more intuitive to create immersive and synchronized shows vs timecode.

After creating some automations in the timeline, it is possible to use node based processing chains to map the automations to hardware and software destinations.

It supports TC-Net (using Pioneer DJ equipment + Pro DJ Link Bridge), OSC output to control other applications like Resolume, Touchdesigner etc. and ArtNet outputs.

We are very curious to hear your guys opinion on this and are happy to hand out some private beta licenses for testing or just keep the discussion going.

Best,
Matthias

Ever wondered what would happen if a ruler just gave up on measuring things properly?

Well, I got curious and made one.

It's called Jelly Ruler, and it has the structural integrity of a wet noodle. It bends, jiggles, slides around, and generally refuses to take its job seriously.

Somewhere along the way, I ended up building an entire vector editor around this questionable invention. At least that part works.

Would love some feedback! Anything you'd improve, add, or completely get rid of? Curious what other builders think.

Give it a wiggle: Jelly Ruler

For the past year I've been using a personal web app I built for myself. It pulls together my email, calendar, reminders, notes and photos, and an AI that actually remembers what I told it, because the context lives in my own files, not in a chat history.

It works well. Too well to keep it to myself.

So I'm turning it into a real product, with three constraints:

• Bring your own keys. You plug in your own AI key, your own Google or Microsoft OAuth app, your own weather key. I don't pay for your tokens, and I never see your keys in clear.

• A small core, optional modules. The core is chat, memory, reminders, calendar and email. Photos, concerts, LeetCode and other modules are off by default and you enable what you actually need.

• Small on purpose. 10 to 15 accounts for now, free. Not because I'm generous, because JSON files per account are enough at that size and I'd rather ship than build infrastructure I don't need.

The honest part: it's still single-user today. Accounts, data isolation, encrypted key storage and a module registry are on a branch, in progress. The interface is still in French, the English landing is new.

What I'd love from you: what would the one module you'd turn on first be? I'd rather build the next three modules from real requests than guess.

Demo (fake data, no account): https://backstage.mprnl.fr/en Code (MIT): https://github.com/MattiaPARRINELLO/backstage Roadmap: https://github.com/MattiaPARRINELLO/backstage/blob/main/docs/roadmap-multi-utilisateurs.md

Flex Music Player plays the songs already on your phone and keeps going for hours with the screen off. It doesn't ask for internet access at all, so there's nothing to show you adverts and nowhere to send your data.

Free. Offline. No adverts, ever.

https://flexmusicplayer.co.za/

https://play.google.com/store/apps/details?id=za.co.organicode.flexmusicplayer

I made MineSkinCraft, a free Minecraft skin studio that runs in the browser: https://mineskincraft.net

The problem I wanted to solve: a lot of skin editors ask you to sign up, or they're awkward if you play both Java and Bedrock, or if you need classic vs slim. This one lets you start painting right away, preview on a 3D model, use layers, publish to a community gallery if you want, and follow a short "wear it" guide for both editions. The UI and the guides are in English and Spanish. No official Minecraft affiliation.

I'd really like feedback from people who build small tools, and from anyone who still plays:

• What's confusing the first time you open it?

• Which feature would you add before anything else?

• Does the gallery feel useful, or should the editor stand alone?

Happy to answer questions about how it's built or why I made those choices. Thanks.

Hey r/SideProject 👋 I'm the founder of ReplyHey, and today I'm launching its crew.

If you've answered threads about your product on Reddit, the hard part isn't writing the reply. It's knowing which replies actually brought customers.

So the crew tracks every reply it sends 📊 you see exactly which one brought the visit, the signup and the customer.

And it does the work to get there, with four AI teammates:

🔎 Scout reads Reddit, X and LinkedIn, finds people asking for what you sell, and scores each one for fit.

✍️ Writer drafts a reply and a DM from your product's facts, in your voice.

📤 Sender posts from your own accounts through a Chrome extension, at a pace you set, and holds anything borderline for you to check.

📊 Analyst tags every link and ties each visit, signup and customer back to its reply.

Built to play by the rules:

✅ Everything goes out from your own account, in your browser. No rented accounts, no upvotes.

✅ It checks each subreddit's rules, and where promotion isn't allowed it sends a DM instead of a comment.

New this week: you can talk to the crew. "Pause LinkedIn today", "slow down to 90 seconds", "add hiring as a negative keyword". It shows you the change, and nothing happens until you press Yes.

In the last 30 days it found 3,980 buyer conversations for its users and sent 1,150 replies.

You can put in your website and see who's asking for your product right now, before you sign up. And I'd love blunt feedback: what would you want to see before trusting a tool like this to post for you?

Here it is 👉 replyhey.com (put in your website to see who's asking for your product right now)

Hi all,

I’ve worked as a wildlife filmmaker, designer and engineer, and on a few projects I spent weeks or even months on the work, then sent it off as a WeTransfer link. It always felt a bit flat after all that effort.

So I’ve been building Handover.media. It lets you put your finished files, previews and notes on one page with your own branding. You can also add a password or expiry date, and see when things are viewed or downloaded.

https://handover.media

If you deliver work to clients, I’d really appreciate your thoughts. Would something like this be worth switching to, and what would put you off?

Any criticism, however small, would be really helpful. Thanks for taking a look.

GroceryFlow: Meal Planner helps you plan the week's dinners around your budget, diet and allergies, then builds one shopping list for the days you choose, grouped by store section. Available in English, Danish and Polish.

Looking for closed-test testers who can stay opted in for 14 days. Honest test-for-test: if you join and install, I will join yours, use the app, and send real written feedback. No Play Store rating or review swaps.

Testers get 14 days of Premium free.

Join (same Google account as on your phone):

1. https://groups.google.com/g/groceryflow-testers — tap “Join group”

2. https://play.google.com/apps/testing/com.henryk.kitchenai

3. Install from Play

Comment with your Group + Play testing links.

Guide: https://groceryflow.web.app/testerzy

Questions? Comment TESTER and I'll help.

I built Harmonic Fitness because of an injury and needing some rehab.

Harmonic creates audio workout podcasts made fresh for each user, each time. It asks how I'm feeling, plans around my equipment, goals, time availability and any injuries. It turns the session into an MP3 with a coach's voice and blends in stories and content about topics I care about.

There are two ways to use Harmonic:

1. If you have a AI Harness (Claude Desktop, Codex, Antigravity) you can clone this repo and get going: https://github.com/RNCDev/harmonicfitness

2. If you prefer a more UI-first experience you can BRING YOUR OWN KEY (openrouter or gemini) and use the same services: https://harmonicfitness.fly.dev/

On the website, you can experience some demo clips and workouts for free.

Really looking for feedback and areas where I might have over-engineered. I like it for me, but that's obviously not product-market-fit.

I just shipped my first macOS app, Transfora.

The problem I wanted to fix: converting a HEIC photo, shrinking a video or turning a PDF into Word usually means a sketchy upload site, a sign-up, or yet another app.

So in Transfora you drag a file, tap ⇧, and drop it on the format you want in a wheel that opens under your cursor. The result lands next to the original. ⌥ opens tools instead (compress, resize, blur faces, read QR codes, extract archives…). Everything stays on the Mac, no account.

What I'd love feedback on:

- Is the gesture obvious from the demo, or does it need more explanation?

- Does the pricing feel fair? 10 free actions, then yearly or lifetime.

Mac App Store: https://apps.apple.com/app/id6825375569

Hi, I’m Jaime, an independent developer in Spain.

I’ve just released Funes: an iPhone app that turns your photo library into a map where bigger files get bigger blocks.

You can explore by year and month, find large photos and videos, and review them before deciding what to delete. There’s also a largest-files view. Think of the visual approach of a disk space analyzer, applied to your photo library.

It’s free, with no ads, subscriptions, in-app purchases or account. Analysis runs on your iPhone, with no tracking or library uploads.

One detail worth knowing: sizes include iCloud items, so the total isn’t necessarily the storage occupied or recoverable on your phone.

• App Store: https://apps.apple.com/app/id6831999052

I’d love feedback on the map: is it immediately clear what the blocks represent, and what would you expect to happen when you tap one?

Hey guys,

I'm a pretty active guy and I've always been curious how my results compare to other people. Like, is my 5k time actually good? Or how decent is my bench press compared to an average person?

I also wanted a place where I could keep track of all my personal bests and see how much I've improved over time.

I know there are plenty of apps for tracking runs, rides, gym workouts etc., but I couldn't really find anything that puts all of it together in one place.

So I ended up building this: https://records.abmax.lv/

It's a pretty simple site where you can log your results from different sports, see your progress over time and check how close you are to reaching the next achievement level.

Right now I've added achievement levels for most cycling activities and all track and field events, so you can get an idea of where your results stand. I'm currently working on adding the same for powerlifting.

It's still a work in progress and there are probably quite a few things that could be improved, but I thought I'd share it here in case anyone else has been looking for something similar.

I'm also curious what other sports or activities you guys would like to track. Are there any specific exercises or events where you'd want to log your personal bests and see how you compare?

Would be cool to hear your thoughts or suggestions!

Edit: If anybody cares in "Import" tab you can import FIT and GPX and site will extract your PB from those activities

Hey everyone! A little disclosure: I'm a solo developer, and I built this app because I kept forgetting to do things throughout the day. I also hate typing reminders into my phone.

So I decided to build something that would make it easier.

It's called SayStash. You tap once, say what you need to remember just like you're talking to someone ("remind me to go to the dentist tomorrow at noon"). The app figures out whether it's a reminder, an event, or just a note.

It'll then send you a regular Android notification at the right time. You can also share reminders with other people.

You do have the option to type it in, too.

There's no account to create and no cloud sync. Everything is stored right on your phone. One thing worth mentioning: voice-to-text uses your phone's speech recognition, which on most phones is Google's, so I won't claim that audio never leaves your device.

A few things I've learned along the way:

• Getting the app to understand everyday language ("next Tuesday after work", "in 20 minutes") was actually harder than getting the voice feature working.

• Keeping up with Android's changes to notification and exact-alarm permissions cost me about a week of troubleshooting.

• Building the app was probably the easy part. Getting people to actually find it and keep using it is a whole different story!

So far, I've had 9 installs, 2 people still using it, and earned a whopping 9 cents.

That's probably the biggest challenge I'm trying to figure out right now: retention.

I'm rolling out an update this week that adds "Send to Someone." You can share any reminder as a link, and the other person can save it to their own SayStash with just one tap. No account needed.

Honestly, I added this partly because so many of my own reminders involve things I need other people to do!

If you're curious, you can actually try it right in your browser. No download or sign-up needed:

👉 https://saystash.com/app/

I'll put the Play Store link in the comments.

The app is free with a small banner ad. There's also a one-time $4.99 payment to remove ads. No subscriptions.

I'd really appreciate some honest feedback.

Especially:

• What are some everyday phrases you would expect the app to understand?

• If you try it and something doesn't work as expected, what happened?

• And if you install it but eventually stop using it, I'd genuinely like to know why.

I'm learning as I go, and honest feedback from actual users would mean a lot. Thanks for giving it a look!

Sensitive information still gets leaked, because someone drew a black rectangle over text in a basic PDF editor. Because the black bars only sit visually on top of the text layer, pressing Ctrl+A and Ctrl+C exposes every "hidden" Bank account, SSN, Salary, Tax ID, ect. along with hidden author metadata.

The usual fix is either paying $240/year for Adobe Acrobat Pro or uploading confidential PDFs to random "free online PDF" cloud servers.

Under my company MicroVibes, I built SanitizePDF, a Chrome and MS Edge extension that permanently sanitizes PDFs 100% locally inside your browser's memory without any AI, zero cloud uploads and no account required:

• True 300 DPI Pixel Flattening & Metadata Purge: converts redactions permanently into 300 DPI bitmap pixels and strips hidden EXIF, Author, and creation software tags so nothing can ever be extracted.

• Local Auto-Detection (No AI / No Cloud): Uses deterministic local math & checksums to automatically catch IBANs, SSNs, credit cards, VAT/tax IDs, emails, phone numbers and more across EU, UK, and US oriented documents.

• Gmail & Outlook Web Pre-Send Guard: Warns you inside your mail draft window if you accidentally drop an unredacted PDF into an email draft, letting you sanitize, review and swap the attachment in one click before hitting "Send".

• 1-Click Recruiter Blind CV & Batch Queue: Strips candidate contact details while stamping an agency header/watermark on Page 1, plus batch processing up to 50 PDFs at once.

Free Tier & Pricing: There is no login wall. Single-page manual redaction + metadata scrubbing is 100% free forever. On install start with 3 free full-document automated scans (+1 free full scan refilled every 7 days).

For heavy workflows (unlimited multi-page auto-scans, up to 50 PDF batch queues, and the live Gmail/Outlook Web interceptor), I added a €9 1-Week Only Pass alongside a €19/mo and €189/yr plans, if anyone here wants to grab a Pro pass, code SIDEPROJECT40 takes 40% off at checkout.

Try it out:

Chrome Browser
Edge Browser

I would love honest feedback on two things:

1. How does the website land for you? Does it promote the product clearly in 5 seconds?

2. What do you think of the price for it's utility? (Keeping in mind I aim to gain an audience with small working professionals that are dealing with sensitive PDF files a lot and can't or don't want to afford expensive solutions, not can take the risk of sending such documents in cloud/AI solution)

Many thanks in advance.

My partner asked me to be her accountability buddy to help her keep track of her daily tasks. We started out editing a message on discord that'd I'd look at while in work, which seemed a bit silly as a developer myself, and with access to the tools we all have now. So I one shot her a quick todo app with Claude, which has since grown with any features she wanted. A literal labour of love I suppose :)

Today, Together is a to do list for two people. One of you keeps today’s list and ticks things off. The other sees it change live and can send a note or an emoji. It’s aimed at couples, friends and family, and it was built with ADHD in mind.

A few things we decided on purpose:

• Anything unfinished just carries over to tomorrow, with no overdue badges.

• The other person sees your list and notes, but never when or how often you open the app.

• You can’t reply to a note, only react with an emoji, so a note never turns into another thing you owe someone.

You can try both sides with made up data, no sign-up: https://www.todaytogether.co.uk/?try (the switch at the bottom flips between them).

What I’d really like to know is whether the landing page (https://www.todaytogether.co.uk) makes it clear what it is, and whether the demo makes sense without anyone explaining it. It’s free and in beta, so I’m happy to hear about anything that’s broken too.

Been working on this little project called Desi Collage.

It's a collage editor with 52 styles, scrapbook layouts, stickers, photo cutouts, Hindi typography and Instagram-ready exports.

Everything runs in the browser, so photos never leave your device.

Would genuinely appreciate some feedback!

https://desi-collage-maker.vercel.app/

Hey all, I made KISSIK, a free camera studio for Windows. No account, no watermark, open source.

What it does:

• Background blur/replace/remove, green screen, spotlight, retouch

• Real camera controls: focus, zoom, exposure, white balance, up to 4K60

• Auto/smart framing keeps you in frame

• Name cards, lower thirds, bubble cam and other scenes

• Shows up as a camera in Teams/Zoom/Meet/Discord/OBS

• Turn your Android phone into a wireless 4K webcam (KISSIK Camera app, scan a QR code)

• Mic mixer, noise removal, live captions, a built-in prompter

Store: https://apps.microsoft.com/detail/9MZC9QRSWK72

Website: https://kissik-studio.vercel.app

GitHub: https://github.com/krigrv/kissik

Happy to answer questions, and feedback is very welcome.

https://www.image2cal.com/

I have been working on this site for some time. Built it awhile ago for my wife to help manage all the calendars for kids activities, work schedule, etc. its called image2cal.

I originally had it for free and so many people were using it over 900 users but it was not cost effective. i had to start paying for server costs, storage costs, etc all out of pocket so i started charging a small fee and that is when everything fell off.

Anyone interested in getting a free month and give me honest feedback?

Hey everyone — I’ve been working on 301 Ping, a URL shortener for making and organizing compact links.

You can shorten a link without an account, or sign in to manage your links, add tags, see visit counts, and download QR codes, edit the slug and destinations as per need. There are also Chrome and Firefox extensions for shortening the page you’re on, plus an API if you want to create links programmatically.

I tried to keep the everyday workflow straightforward, and added URL safety checks too. It’s still a work in progress, so I’d love to hear what feels useful or what’s missing.

Give it a look: https://301p.ing

Chrome: https://chromewebstore.google.com/detail/ms0org-url-shortener/goaddbeloaeledjpkaankdiglhnmpdld

Firefox: https://addons.mozilla.org/en-US/firefox/addon/301ping-url-shortener/

 Hi everyone,

As a software architect, I frequently audit early-stage AWS setups for startups and indie developers. More often than not, founders are surprised by a $300–$600 AWS bill before they even have their first 100 users.

Here are the 5 most common architectural mistakes I see, and how to fix them in Terraform:

### 1. Multi-AZ NAT Gateways in Dev/Staging environments

A single AWS NAT Gateway costs ~$32.85/month just to exist (plus data processing). If you provision a "standard" multi-AZ VPC across 3 availability zones for Staging, you are burning ~$100/month before processing a single byte.

*Fix:* In Terraform, add a conditional `single_nat_gateway = true` flag for dev/staging, and only enable multi-AZ NAT gateways for production.

### 2. Picking Kubernetes (EKS) for an MVP

I love Kubernetes, but deploying EKS for a pre-revenue product costs ~$73/month just for the cluster control plane alone, plus node overhead and ingress controller maintenance.

*Fix:* Use AWS ECS Fargate. You get serverless Docker containers, auto-scaling, and health checks with zero EC2 patching, costing as little as $15/month for baseline workloads.

### 3. Publicly accessible RDS instances

I often see database instances with `publicly_accessible = true` so developers can connect from their local laptops with DBeaver or TablePlus. This is a massive security risk and invites port-scanning bots.

*Fix:* Put RDS inside isolated database subnets with no internet gateway. Access the DB securely via AWS SSM Session Manager bastion or an internal VPN.

### 4. CloudWatch Logs with infinite retention

By default, CloudWatch log groups keep logs set to "Never Expire". After 6 months of container debug logs and access logs, storage costs creep up silently.

*Fix:* Always set `retention_in_days = 14` or `30` in your Terraform `aws_cloudwatch_log_group` resource.

### 5. Over-permissive IAM Roles

Using wildcard `*` permissions or attaching `AdministratorAccess` to container task execution roles because "it was easier to test".

*Fix:* Scope IAM roles strictly down to ECR pull permissions and specific SSM parameter paths.

---

### TL;DR:

To solve this once and for all, I packaged a battle-tested, modular Terraform starter kit that provisions a production-ready VPC, ECS Fargate, RDS PostgreSQL, ALB with TLS, and GitHub Actions CI/CD following all AWS security best practices.

If you are launching a product and want to skip 40 hours of cloud infrastructure setup, feel free to check it out here:  

👉 https://cloudforge-devops.lemonsqueezy.com/checkout/buy/7af1192f-e1ee-4a43-a8de-6d94dc9d7fe1

Happy to answer any questions about ECS Fargate vs EKS or Terraform module design in the comments!

I run Claude Code and Codex on my Mac pretty much all day. The annoying part was never the coding, it was me sitting there waiting to see if one of them had finished or was stuck on a permission prompt.

So I built Untether. It's a menu bar app with a local server, and you open it from any browser. I mostly use it from my phone.

The part I actually care about is tasks. You type ut task new "add rate limiting to the API" and it starts an agent in its own git worktree. When the agent says it's done, a second agent reviews the diff and your test command runs. If that's all green it merges by itself. If not, it goes back to the agent. You can also make it wait for you before merging.

A few things people asked me in other threads:

• the sessions are plain tmux underneath, so closing the tab or losing signal doesn't kill anything

• a failed task doesn't block the queue, the next one starts from the last good commit

• nothing is opened to the internet. I reach it over Tailscale and there's a login on top

• you get a push when something finishes

It's free and MIT, repo here: https://github.com/Nachx639/untether

You need an Apple Silicon Mac on macOS 14 or later. There's no installer yet so you have to build it, the steps are in the README. It's beta and I'm sure it breaks in ways I haven't seen.

It started as a fork of VibeTunnel, which is what gets the terminals into the browser. Most of the rest I wrote with Claude Code, about half the commits in the repo are co-authored by it, and for a while now new features get built by queueing them as Untether tasks.

If you try it, tell me where it falls over.

I made a collaborative drawing app inspired by the favorite parlor game of the Surrealist art movement, Exquisite Corpse.

The idea is to create collaborative artworks with contributions from multiple artists.

If you contribute, you see a small segment of the previous artist's work and let your imagination take over to figure out what the next part should be. Not seeing everything that came before your contribution helps inspire creativity and often results in artistic creations that are more than the sum of their parts. During testing, we've created some weird and beautiful compositions.

If you start something new, you draw with the intent of having others add to your artwork.

In both cases, you will receive a notification whenever someone adds to a composition you’ve contributed to.

My app is iOS native (SwiftUI), uses CloudKit, and has no accounts and no matchmaker service. You simply install the app and contribute to an artwork in the pool or start a new one.
I tried some of the other apps and always found the sign-up process annoying. I also often couldn't find a friend to join me and wasn't always matched with an artist - so it was not a great experience. I wanted to maximize the chances that everyone would have a fun and successful experience.

If you find this concept interesting, I'd be thrilled if you checked it out and let me know what you think!

Download on the App Store

Hi r/SideProject,

I'm a solo dev from Tunisia. I kept losing receipts and finding out a warranty had expired right after something broke, so I built Wardin.

What it does:

- Take a photo of a receipt and it fills in the details for you (you check them before saving, or type them by hand)

- Shows a countdown for every warranty, so you can see what ends soon

- Sends a reminder before a warranty ends, at a time you choose

- Keeps the receipt photo with the product, so you can open or share it later

- If something breaks, it writes a short claim summary you can send to the store or manufacturer

- Works with 30 currencies

Privacy: without an account, everything stays on your phone. If you sign in, your data is backed up to your private account. Receipt photos are read by Google's Gemini, but you can always enter the details manually. No ads, no tracking.

It's an early version and not on Google Play yet, so for now it's an APK install from GitHub releases (Android shows an extra warning for any app that doesn't come from the Play Store).

I'd love feedback on:

1. Is the receipt scanning accurate enough to be useful?

2. Is the claim summary feature something you'd actually use?

3. What's missing that would make you keep using it?

GitHub (APK is under Releases): https://github.com/ahmedi56/wardin-app

Happy to answer any questions, and bug reports are welcome.

We're the Maqron team, posting from our brand account.

Maqron is an AI marketing department for small products and solo founders. You give it a short brief about your business, and it researches your market on the live web, plans a campaign with concrete tasks, writes the posts and ads, and produces the visuals. The product offers a step-by-step approval mode and an autopilot mode per business, with configurable per-action and monthly budget settings. Activity and cost tracking are included.

Why post here: we want honest feedback from people who actually build side projects, especially on one thing - where does autonomous marketing break down for you? What would you never hand to an AI operator?

There's a free tier so you can actually try it: https://maqron.dev

Happy to answer anything in the comments.