Muro: 100% Free Live Wallpapers for macOS

Muro is a native macOS app that plays smooth, looping video wallpapers on your desktop. It supports multiple displays and includes up to 100 live wallpapers, with new wallpapers added every week.

The wallpaper catalog updates automatically inside the app, so you do not need to install a new version to receive new wallpapers. Videos download only when you select them, and you can remove them anytime to save storage.

Muro also includes full-screen previews, playlists, automatic wallpaper rotation, shuffle mode, menu bar controls and the ability to import your own videos. On macOS 26 or newer, wallpapers can also play on the lock screen.

The app is built natively with Swift, SwiftUI and Apple’s hardware video decoder. It does not use Electron or web views. It normally uses around 2% CPU while playing and automatically pauses when the wallpaper is not visible, during full-screen apps, display sleep, Low Power Mode or low battery.

Everything is unlocked. There is no trial, no payment required, no subscription, no account, no license key and no paywall. Muro is completely free and open source under the MIT license.

Requires macOS 14 or newer and an Apple Silicon Mac.

Download and source code:

https://github.com/MrRockySL/Muro

Report a problem or suggest a feature:

https://github.com/MrRockySL/Muro/issues

Support for future development:

https://github.com/sponsors/MrRockySL

Star ⭐ helps a lot if it's useful to you, and issues are welcome.

The problem

You're listening to something. A call starts on FaceTime, Zoom, Meet or Teams. macOS immediately drops everything else to a whisper. It's called audio ducking, it's on by default, and there is no setting anywhere in System Settings to turn it off.

The threads about this on Apple's own forums are years old. The most-repeated "fix" is unchecking boxes in VoiceOver Utility, which doesn't really work. The apps that do solve it properly cost real money - SoundSource is $49.

What it does

Unduck Pro is a small menu bar app that keeps your media at full volume during a call. The person on the other end still hears only you — your audio is never pushed into your mic.

While it's there, it also gives you a per-app volume mixer and an output device switcher:

- Media stays loud on calls — FaceTime, Zoom, Meet, Teams and others▎

- Independent call volume — turn the call down without touching your music

- Per-app volume mixer, remembered per app

- Output switcher — speakers, AirPods, whatever, without opening System Settings

- Launch at login, update notifications, favourites.

How it works

Built entirely on Apple's public Core Audio process-tap API (macOS 14.2+). No kernel extensions, no virtual audio drivers, no third-party code. It continuously resets the OS ducking rather than boosting anything, so there's no added gain and no distortion.

Free, and actually free

MIT licensed, no paywall, no trial, no account, no telemetry. The whole source is on GitHub — read it, build it yourself, fork it.

🔗 Repo: https://github.com/MrRockySL/Unduck-Pro

Download: https://github.com/MrRockySL/Unduck-Pro/releases/latest

Two things to know before you install

1. It's self-signed, not notarized. Apple's notarization costs $99/year and this is a free app, so macOS will block the first launch with "Apple could not verify it is free of malware". You'll need System Settings → Privacy & Security → Open Anyway. If that's a dealbreaker, completely fair — build it from source instead, it's two commands.

2. It asks for microphone permission. I know how that sounds for a volume app. The Core Audio tap API Apple provides is gated behind the audio-input permission — there's no way around it. It does not record, store or transmit anything, and since the source is public you can verify that rather than take my word for it.

Requires macOS 14.2 or later. Universal — runs natively on both Intel and Apple Silicon.

If you find it useful, a ⭐ on the repo genuinely helps — it's how anyone else searching for this problem ends up finding it. And if something's broken or missing, open an issue: https://github.com/MrRockySL/Unduck-Pro/issues — every issue so far has turned into a fix.

I'm the developer. Happy to answer anything in the comments.

I built a native MacOS YouTube app for Ventura and later which has offline features, download features, smart playing, themes, offline library and much more completely free.

Check it out here: https://github.com/fizzygx/Youtube-X

Any feedback is welcome let me know in the comments

mac app discovery is a mess right now. producthunt and the app store are flooded with stuff that's basically an api wrapped in a nice icon, shipped in a weekend with ai. looks polished in a screenshot, but nothing behind it.

got tired of digging through that as a user so I built discovermacapps.com, a directory that only lists mac apps that are actually solid along with their public opinion about the apps.

Let me know how are you finding good mac apps to try and also what are some mac apps that you feel should be listed on this directory.

For the last year I've been building a writing assistant for macOS Lyra

At first, I did what everyone else does.

"Rewrite this."
"Make it friendlier."
"Make it more professional."

It worked.

But something felt off.

ChatGPT assumes you have one writing style. You don't.

I message my co-founder differently from recruiters.
I email my accountant differently from my wife.

The relationship changes the writing more than the tone does.

So I scrapped a big part of what I'd built.

Instead of learning my writing style, the app learns how I write to each individual person. Every accepted rewrite becomes another example for that relationship. After a while, messages to different people genuinely start sounding different.

The entire thing runs locally on Apple Silicon because I wasn't comfortable uploading years of private conversations just to improve my emails.

It's still far from perfect.

The local models occasionally miss difficult typos.
Learning a person's style takes a couple dozen accepted rewrites before it becomes noticeable.
And I'm a solo developer, so every support email comes to me.

But it finally feels like I'm building the product I originally imagined, instead of another AI rewriter.

What do you guys think ? Should AI learn you, or the way you're different with different people?

Lyra

https://github.com/kah-ve/DisplayWave

A free monitor control tool for brightness, warmth, and more.

Existing apps for handling external monitor controls for mac are either focused on solving a small subset of problems or are paywalled. Also I found the paywalled ones to be more complicated and feature rich then needed. So I wanted to build something more tailored to the small feature-set I would ever need.

A couple comparisons

- MonitorControl (free): This is what I used previously. It's great but limited to brightness only and would need another app to control turning a monitor on/off.

- BetterDisplay (free/$22 Pro): I think this is the most feature rich mac app for monitor control out there and probably the most battle tested one. Personally I didn't think I needed to use most of the features and wanted something more minimal and tailored to the small subset of actions I was looking for.

I can't promise it works flawlessly on everything but it's simple enough to install and try out. Let me know what you think or if you run into issues.

My friend and I are building Rectury, a desktop app where you can manage your VPS and work with your infrastructure using AI.

Instead of jumping between SSH, your editor, logs and a browser, you can just ask Rectury things like:

“Why is my API down?”
“Check the nginx logs and fix the issue”
“Restart the service”
“Find what’s using port 3000”

The AI agent can inspect files, run terminal commands and interact directly with your server.

We’ve been working on making the whole experience feel as simple as: ask → inspect → act.

My friend and I would genuinely love to hear what you think. If you manage VPSs, drop a comment with your feedback or tell us what you’d want an AI agent like this to handle.

We’re giving 8k Rectury credits to people from this community who try it and leave us feedback in the comments.

https://www.rectury.com/