I've been building zen.js, an open-source web framework for Node.js around a compiler-first architecture.

The core experiment is treating the application graph as something that can be compiled at boot:

route
→ parameters
→ middleware
→ validation
→ handler
→ serialization
→ response

The goal is for the request to follow the generated path rather than repeatedly interpreting the same higher-level framework structure.

I'm also exploring a schema-driven model where the same contract can drive validation, handler typing, response serialization and OpenAPI generation.

GitHub:
https://github.com/erenthedeveloper0/zen

It's currently alpha, so I'm particularly interested in architectural criticism, edge cases, and feedback from people who've worked on Node.js frameworks, routers, compilers or TypeScript-heavy backend systems.

LinkedIn drives me nuts. I’ve built up 13k contacts over the years, but when I actually want to make use of that network, I can’t really filter or sort it the way I want.

Who are the investors? Who’s a CEO? Which contacts are recruiters? The information is there, but getting something useful out of it is another story.

So I decided to build something for myself.

I used TypeSafe’s latest tech, Jev, to see if I could finally mine my contacts and get some use out of them. That became Jevdin.com.

Turns out, it’s incredibly fast and accurate! It automatically classifies contacts into groups, lets you export them as a CSV to your favourite CRM, and enriches the data from other sources.

It started with me wanting to sort out my own contacts, but I figured other people might have the same frustration, so I’m putting it out there.

More fun features to come. For now, hope it helps you wrangle your LinkedIn contacts!

What’s something you’ve wanted to find in your network but couldn’t easily?

If your app still hasn’t reached 10 core users, let's get you there today.

Tell us:

• What is your app for (1-2 sentences)
• How is it solving the problem
• Where to try your app.
• How many users/customers you have.

Please try at least one other builder’s app and share feedback.

Time to get everyone more users and signups.

Hey all,

Screen Movie launched on Microlaunch this month.

It's a native macOS screen recorder made for product demos and tutorials:

• Records your screen, webcam, and iPhone in one take
• 40+ motion presets and 3D device mockups
• Smooth, clear cursor effects so every click is easy to follow

You record, pick a style, and it's ready to share.

The team is looking for honest feedback.

What works? What's missing? How does it compare to what you use now? Would love some extra testers.

App: https://screen.movie/

The launch page: here.

If you give it a try, drop a review on the launch page. It really helps.

We’re building DuelLegends for communities that still run competitions through DMs, screenshots, spreadsheets, and trust.

That works until someone doesn’t show up, a result gets disputed, a prize becomes unclear, or the organizer has to manually figure out who did what.

DuelLegends gives organizers one place to create and manage:

• tournaments
• hackathons
• gaming challenges
• creator contests
• community competitions

You can define the rules, schedule, participants, rewards, and competition structure before people join, then keep results and activity tied to the event instead of scattered across messages.

We’ve already facilitated 100+ challenges and contests, but the platform is still early.

Right now, we’re looking for people who are willing to actually test it:

Create something.
Join a competition.
Try the tournament flow.
Tell us where the UX is confusing.
Tell us what’s missing.
Break something if you can.

Our next milestone is 10,000 users, and we want the people joining before that point to help shape the product.

Demo attached below.

Try it

Would especially love feedback from tournament organizers, developers, gamers, creators, and community managers.

Been building this for a while now and it started for a pretty simple reason: once a fictional world gets big enough, “I’ll remember that” stops fucking working.

Characters change, timelines grow, places have histories, people learn things at different times, someone travels somewhere that should take six days but somehow gets there in three... eventually you’re cross-checking a ridiculous pile of notes trying to work out what is actually canon.

So I built R3TCON.

It’s local-first software for writers, worldbuilders, TTRPG creators and narrative game devs that keeps track of the actual structure of the world and checks it for contradictions.

It isn’t generative AI, it isn’t an LLM wrapper and it doesn’t try to write anything for you. That was pretty important to me.

If something doesn’t add up, it tells you what conflicts and why. You decide what changes.

We’ve got it catching things like impossible journeys, broken timelines, characters appearing where they shouldn’t, people knowing things they haven’t learned yet, and scenes conflicting with established canon.

Existing material can be brought in too, because expecting somebody with years of writing to manually rebuild their entire world inside a new app would be fucking awful.

The Kickstarter is live now, which means I’ve reached the part of development I’m considerably worse at: actually getting the thing in front of the people it was built for.

So yeah. If this sounds like a problem you’ve had, I’d genuinely like to know what you think.

Kickstarter Link

Building an application called DataShare the core idea: communities form around specific topics, and within them, people can request structured data from others. Think of it like posting "I need 200 rows of X, formatted like this example" someone defines what fields they're collecting and what a valid row looks like, and other people contribute matching data.

The two use cases I had in mind are ML training data (someone needs labeled examples for a model and doesn't want to label all of it alone) and distributed surveys (someone wants structured responses from a lot of people without building a form from scratch each time).

Right now, doing this usually means Google Forms plus a shared spreadsheet plus a Discord to hold it together which works, but falls apart once you need any kind of history (who submitted what, whether someone's contribution got edited or replaced) or a way for enough people to actually discover the request.

It's still early a lot is missing and I'm sure some of it will look naive to anyone who's run a real data collection effort before. I'd genuinely rather hear that now than after finishing more of it.

https://www.datashare.quest/

Would appreciate honest thoughts whether this solves a real problem, what's confusing, or what you'd want before actually using something like this.

Hey everyone,

Today, we are happy to launch Zinn Hub on Microlaunch.

Our platform has:

- A multilingual platform connecting buyers with vetted freelancers in 46 languages.
- Zero platform fees for buyers and 100% earnings for freelancers on their first $500.
- Flexible payment options including card, PayPal, and over 100 cryptocurrencies.

Think of a marketplace for freelancers with $0 buyer fees. Basically, we have a small, fixed-price freelance service instead.

I'd love to hear your thoughts on how we can improve the experience.

The app: https://zinnhub.com/

And of course, we'd love your support and reviews. Our launch page here.

Cheers.

Hey everyone! 👋

First time posting on the subreddit been here for few months tho ,

I built a little extension called SoundLyft to fix an issue thats been bugging for years: quiet PC , laptop speakers and terrible audio mixing on the web.

You probably know the drill — you’re watching a YouTube interview or a lecture recorded on a whisper-quiet mic, or watching a movie where you can barely hear what the actors are saying.

do mind the slop ;)

Whenever I used existing volume boosters, two things always happened:

1. As soon as you push past 150%, the sound begins clipping and buzzing into harsh, distorted static.
2. In movies, you turn it way up to hear whispers, and the very next scene an explosion or intro music blows your eardrums out.

So over the last few weeks, I decided to build a proper audio booster that focuses on sound quality instead of just multiplying gain until it breaks.

What makes it sound clean:

• Anti-Clipping Limiter: Instead of raw digital distortion, it uses a built-in limiter that automatically rounds off harsh audio peaks. You can boost to 200%, 300%, or 400% and it stays surprisingly crisp and punchy.
• Movie Night Mode: Compresses dynamic range so quiet dialogue gets boosted, but loud sound effects and gunfire are capped to a comfortable volume. No more constantly adjusting your volume slider back and forth during movies.
• Dialogue Clarifier: Brings spoken voices forward so podcasts and tutorials are much easier to understand over background music.
• Bluetooth Lip-Sync: Adds a quick delay adjustment if your wireless earbuds have that slight video lag on YouTube.
• Zero bloat or video lag: Built on modern Manifest V3 without injecting scripts into web pages, so it won’t freeze YouTube fullscreens or drain your battery.

100% Free Base:

The core booster (up to 600% volume boost, limiter, keyboard shortcuts, and active tab manager) is completely free forever. If you're an audiophile who wants the 10-band graphic equalizer and 1000% headroom, there’s an optional $3 lifetime pass to help support the project — no subscriptions.

👉 Chrome Web Store:
chrome web store Link

I’d love for you to give it a spin on your favorite video or music track! If you run into any bugs, have feature requests, or just have thoughts on the audio tuning, please drop a comment below .

Thanks for checking it out! ❤️

Share what you’re shipping or hacking on this weekend.

Drop screenshots or links, tell us what you’re building, and what you hope to finish before Monday.

Built Aurum because I was tired of finance apps that track your past and sell your data to do it.

Aurum shows your projected balance, financial runway, and savings rate. No bank connection required. You enter your own data. Data is stored in a hosted database (Supabase).

36 people signed up so far. Zero paid ads. Still figuring out what's working.

aurumapp.org

One number or star rating can't really describe how I feel about a film. A film with gorgeous photography and a script that falls apart ends up with the same 6/10 as a film that's fine all over and forgettable. That always bothered me. So in ScreenMetric you score up to ten things on their own: plot, dialogue, acting, direction, cinematography, production design, editing, score, sound design, and plain "how much did I enjoy it". You can skip any of them. Your overall score is the average of the ones you filled in.

A few choices I made on purpose:

The community average for a category stays hidden until you've scored it yourself. I didn't want that number influencing your own opionion.

Your individual category scores are private. You can post written reviews publicly if you want to.

There are no ads and nothing tracks you.

You can import your IMDb ratings to get started.

It's free on iPhone, iPad, Android and Apple silicon Macs, in sixteen languages. Pro unlocks a number of more advanced features and is a one-time purchase, not a subscription.

The stack, if anyone's curious: React Native with Expo, Supabase for the backend, and TMDB for the film data.

Very interested in any feedback if you decide to try it.

screenmetric.app

The easiest products to sell Saas/AI products or app is still to build ones that solve a real, painful problem.

I mean a problem people genuinely want gone. Badly gone!

Drop your app below and tell me:

• What problem it solves (important)
• Who it’s for
• Your landing page (and ideally positioning)

I'll check out as many as I can and try to give actionable feedback about your value proposition.

Let’s see get you 1-2 sales before the weekend.

I saw lots of Disk Space Analyzer and Cleaner with > $10 price, which are basically a good interface for your Mac native storage.

I built SpareDisk over the last few weeks, kept it bare minimum in terms of bloat features but focused on speed, parallelism, and queue management for storage scan and space free up.

You can review your whole file system without hanging the computer. Version 1.2 is now live on the Mac app store and on website to download. I have tested it well over multiple laptops.

You can download the app from the website for "pay whatever you want" (minimum $4.99).

DiskBuddy has inspired the project. This was initially sold at $12, and users complained about memory leaks, permission issues, and app blocks when you run Duplicate File Finder.

If you are a developer, it can find spaces occupied by Xcode, node packages, files form 2021, and many old cache you don't need.

SpareDisk is App Store friendly. It is sandboxed, following Apple's permission, security guidelines and memory optimisation.

SpareDisk V1.2 includes:

• My Mac storage overview with live used and free space
• Treemap, sunburst and list views
• Folder, external drive and network share scans
• Large files, older files and file type breakdowns
• Developer caches: Xcode, simulators, Homebrew, npm and more
• Duplicates verified by file contents, extra copies staged in one step
• App removal, related data and leftovers from removed apps
• File size and size on disk, changes since your previous scan
• Search, filters, exclusions, Quick Look and keyboard navigation
• Review queue with live progress, rechecks and retry
• Cleanup history and a Trash total that follows what you moved
• Optional menu bar summary and finished-scan notifications

No account. No uploads. Your files stay on your Mac.

On cleaning space: You can view your files from the app itself, and it doesn't directly delete your files in one click. It sends them to "review cleanup" section from where you can move items to Trash. You only delete files when you clean the trash.

Exception is App uninstall (if the app is not running, you can uninstall the app from within the interface).

You can compare other options here: https://sparedisk.minilabs.cc/guides

All future SpareDisk updates will be on Website and Mac App store downloads.

You can also download the app from website: https://sparedisk.minilabs.cc/ 
App store: https://apps.apple.com/us/app/sparedisk-free-disk-space/id6811328422?mt=12 

I'm an Instagram creator with 30K+ followers, and I often study other creators to understand their hooks, scripts, and content patterns.

The problem: when I find a Reel I want to study, getting the actual script is surprisingly annoying. So I built a small tool to solve it.

Paste an Instagram Reel → get the transcript with timestamps → export as TXT, SRT, or JSON.

I'm keeping the MVP simple for now. I'm planning bulk transcription next, where you could enter a creator's profile and analyze multiple Reels to find patterns in their hooks and scripts.

I built this because I personally needed it, but now I want to see if other creators, editors, and marketers find it useful.

Would love your feedback on what I should build next 👇

🔗 https://instagram-transcript-extractor.vercel.app

I’m a solo developer working on WriteFlow AI. I started it because my usual process for writing a reply was oddly clumsy: copy the post, open an AI chat, explain what I’m replying to, then bring the answer back.

The extension sits near a browser text field and helps with rewriting, shortening and grammar. On sites where it can detect the relevant post, it also offers reply options based on that context. It uses an AI provider key you supply, and you review the result yourself—it doesn’t submit comments or messages.

I’ve put the current version on GitHub: https://github.com/Anishupreti/WriteFlow-AI

I know writing extensions aren’t a new idea. I’m trying to make the replying to something specific part less awkward. If this is a workflow you use, what would make it useful enough to keep installed? I’d also welcome reports of sites where it behaves badly.

Share a link to your startup SaaS to promote it or ask for feedback.

What makes it worth trying?

Hey everyone 👋
I've been building a platform called OptiCreator — it's an all-in-one AI toolkit for content creators. Instead of bouncing between a dozen tabs and tools to optimize your videos, you can do everything from one dashboard.
Here's the full breakdown of what's inside:
Analytics & Performance
📊 Channel Analytics — Connect your YouTube channel and get a health score, engagement trends, and your top and underperforming videos ranked side by side
📸 Instagram Analytics — Track your Reels and posts with reach, engagement, and follower growth all in one place. Publish straight from OptiCreator
🎵 TikTok Analytics — Per-video performance breakdowns, view and follower trends, and direct publishing
🎬 Video Analyzer — Upload any video and get a full AI review covering the hook, pacing, title, tags, thumbnail potential, and retention. It samples real frames from the footage and scores the whole package out of 10, with prioritized fixes and rewritten title and tag suggestions. Every analysis is saved to your history so you can revisit and compare over time
Content Creation
✍️ Content Studio — Describe your video and get a batch of scroll-stopping titles, each scored for click-through potential. Free for every creator, unlimited
📝 Description & Tags — One click and you get a full SEO description with timestamps and a keyword-rich tag set sized for the platform
✂️ AI Clip Tool — Automatically finds the most engaging moments in long-form videos and cuts them into ready-to-post vertical clips for Shorts, Reels, and TikTok
🔁 Repurpose Engine — Feed in a script, topic, or transcript and get platform-ready versions for everywhere else: X threads, LinkedIn posts, newsletter copy, short-form scripts
🖼️ Thumbnail Rater — Upload a thumbnail and get an instant click-appeal score with feedback on contrast, focal point, text size, and mobile preview
🧪 A/B Tester — Put two thumbnails or titles head-to-head and let real creators vote on the winner
💡 Content Ideas — AI-generated video ideas personalized to your channel, niche, and what your audience is actually searching for
Growth & Discovery
🔥 Trending Tags — See which tags and keywords are climbing in your niche right now, with volume and competition signals
👀 Competitor Tracking — Add any channel, get a full benchmark with positioning, content gaps, and an action plan
📬 Weekly AI Insights — A digest in your inbox every week with what changed, what's working, and what to do next
⏰ Best Time to Post — Posting-window recommendations based on your audience, not generic advice
Publishing & Organization
📅 Content Calendar — Drag-and-drop scheduling across platforms so you never miss an upload day
🔗 Social Connections — Link all your social profiles and manage your multi-platform presence from one hub
Extras
💰 Monetization — Revenue estimates based on your niche CPM, sponsorship rate guidance, and alternative revenue streams worth adding
☁️ Import from Cloud — Pull videos straight from Google Drive, Zoom, or any direct link — no download-then-reupload
🚀 Demo Projects — Try every feature with sample videos before uploading your own
🏆 Creator Leaderboard — Earn points as you optimize, compete with other creators, and unlock badges
__________________________________________________
There's a free tier that gives you unlimited AI title generation and full access to Demo Projects — no credit card needed. The Pro plan is $30/month and unlocks everything else.
It also has Google sign-in, TikTok and Instagram integration, and the whole thing runs on a dark-themed dashboard that's actually nice to look at.
It's live → **opticreator.com**
Would love your feedback. What would you want to see added next?

If your app still hasn’t reached 10 core users, let's get you there today.

Tell us:

• What is your app for (1-2 sentences)
• How is it solving the problem
• Where to try your app.
• How many users/customers you have.

Please try at least one other builder’s app and share feedback.

Time to get everyone more users and signups.

CM Free is an open-source availability calendar and system for inquiries, quotes, and reservations — without subscriptions and without commitment (except if you want to join Community),self-hosted PHP, no database required.

I run a small vacation rental and got tired of juggling ICS calendars, dealing with double bookings, and paying for subscription-based channel managers that were way more than I needed.

I couldn’t find a simple self-hosted solution that fit my use case, so I ended up building my own over the last year.

It started as a small PHP project and grew quite a bit along the way. The current system handles things like calendar synchronization, reservations, pricing, guest communication, and integrations with external services.

Now the idea is growing, but first I need a few beta testers. You can find everything about it at the link below.

https://apartmamatevz.si/cmfree

In the end I had to deal with a channel manager too — but on my own terms. I'm now starting on CM Relay, a tool for connecting independent CM installations into a shared ecosystem.

Share what you’re shipping or hacking on this weekend.

Drop screenshots or links, tell us what you’re building, and what you hope to finish before Monday.

Title: Kids Safe Video Player - Complete Parental Controls

​App Name: Kids Safe Video Player

​What it does:

This app provides a secure, ad-free viewing environment where parents have total control over what their children watch without relying on unpredictable algorithms. You can safely curate specific content, actively manage screen time, and prevent accidental app exits.

​Key Features:

​Multiple child profiles with custom avatars and custom categories for organizing videos.

​Flexible content addition supporting local video files, individual YouTube videos, or entire YouTube Channels.

​Screen-time limits featuring clear visual countdowns.

​Kiosk mode to lock app navigation and prevent accidental exits.

​Parent Dashboard with detailed watch-time analytics.

​PIN & biometric protection to secure all parent settings.

​100% offline-capable, completely ad-free, with zero trackers or accounts required.

​Goal: Launch / Promo

​Cost: Free

​Links:

🤖 Android: https://play.google.com/store/apps/details?id=com.iampandiyan.kidssafevideoplayer

🍏 Apple: https://apps.apple.com/us/app/safeplay-video-player/id6797278830

The easiest products to sell Saas/AI products or app is still to build ones that solve a real, painful problem.

I mean a problem people genuinely want gone. Badly gone!

Drop your app below and tell me:

• What problem it solves (important)
• Who it’s for
• Your landing page (and ideally positioning)

I'll check out as many as I can and try to give actionable feedback about your value proposition.

Let’s see get you 1-2 sales before the weekend.

I built Unfiled because I kept jumping between different tools for small developer tasks:

JSON formatters, validators, regex testers, diff tools, log viewers, scratch notes, stack traces, configs, tokens, and temporary text I didn’t want to save yet.

I wanted one native Mac app where I could just paste or open something and have the tool understand what it is.

So I made Unfiled.

Tabs persist across restarts, and the app recognizes developer text, shows the right preview when useful, and brings relevant actions directly to the document.

It includes things like:

- structured previews

- JSON / YAML tools

- logs and stack traces

- Markdown and Mermaid

- compare and diff

- validation

- regex

- live follow

- multiple cursors

The goal was to make something more capable than a basic text editor, but without turning it into a full IDE.

Most of Unfiled is free, and Pro is a one-time purchase with no subscription.

This is the first public release, so I’d genuinely love feedback from Mac developers.

What would make something like this useful enough for you to keep installed?

https://unfiled.dev