Oskar
@oskargroth.bsky.social
Mac Indie Developer. Founder of @cindoriapps. Here to enhance your Mac experience.
Just launched my new personal site: oskargroth.com
Excited to expand my work from native Mac apps into the next era of AI-powered products, and exploring new opportunities to build at scale.
Excited to expand my work from native Mac apps into the next era of AI-powered products, and exploring new opportunities to build at scale.
Oskar Groth — Product Engineer & Founder
Hey, I’m Oskar Groth — a Product Engineer and Founder from Stockholm, Sweden, building thoughtful, user-focused products
oskargroth.com
November 2, 2025 at 7:02 PM
Just launched my new personal site: oskargroth.com
Excited to expand my work from native Mac apps into the next era of AI-powered products, and exploring new opportunities to build at scale.
Excited to expand my work from native Mac apps into the next era of AI-powered products, and exploring new opportunities to build at scale.
Announcing Backdrop 2.0 – World First Custom Video Wallpapers on your Mac Lock Screen
cindori.com/news/backdro...
cindori.com/news/backdro...
Backdrop 2.0: Video Wallpapers for Your Mac Lock Screen
Backdrop 2.0 introduces world-first Lock Screen video wallpapers for Mac, bringing custom video backgrounds to both your Mac desktop and Lock Screen – an exclusive feature available nowhere else.
cindori.com
September 3, 2025 at 12:26 PM
Announcing Backdrop 2.0 – World First Custom Video Wallpapers on your Mac Lock Screen
cindori.com/news/backdro...
cindori.com/news/backdro...
OpenAI dropped GPT-5 yesterday, how are you finding it?
Honestly, I'm not blown away. Doubt I’d pass a blind test vs 4o. Post-training might change that, but for now I’m sticking with Claude Opus 4.1.
Honestly, I'm not blown away. Doubt I’d pass a blind test vs 4o. Post-training might change that, but for now I’m sticking with Claude Opus 4.1.
August 8, 2025 at 10:50 AM
OpenAI dropped GPT-5 yesterday, how are you finding it?
Honestly, I'm not blown away. Doubt I’d pass a blind test vs 4o. Post-training might change that, but for now I’m sticking with Claude Opus 4.1.
Honestly, I'm not blown away. Doubt I’d pass a blind test vs 4o. Post-training might change that, but for now I’m sticking with Claude Opus 4.1.
New Backdrop detail view design with Liquid Glass UI and live previews
August 5, 2025 at 6:29 PM
New Backdrop detail view design with Liquid Glass UI and live previews
Growing up is realising “organic growth” was never real. It was always either distribution, or leaving it up to chance.
If you’re not spending as much time on distribution as on engineering, you’re not building a product. You’re building a hobby project for one user: yourself.
If you’re not spending as much time on distribution as on engineering, you’re not building a product. You’re building a hobby project for one user: yourself.
August 4, 2025 at 11:44 AM
Growing up is realising “organic growth” was never real. It was always either distribution, or leaving it up to chance.
If you’re not spending as much time on distribution as on engineering, you’re not building a product. You’re building a hobby project for one user: yourself.
If you’re not spending as much time on distribution as on engineering, you’re not building a product. You’re building a hobby project for one user: yourself.
I've released some huge feature updates to Backdrop lately.
Now I'm also updating the pricing based on user feedback.
Monthly $2.99 -> $1.99
Yearly $19.99 -> $14.99
Lifetime $49.99 -> $39.99
Also offering a 25% discount on Lifetime for a limited time 🔥
Now I'm also updating the pricing based on user feedback.
Monthly $2.99 -> $1.99
Yearly $19.99 -> $14.99
Lifetime $49.99 -> $39.99
Also offering a 25% discount on Lifetime for a limited time 🔥
July 30, 2025 at 12:09 PM
I've released some huge feature updates to Backdrop lately.
Now I'm also updating the pricing based on user feedback.
Monthly $2.99 -> $1.99
Yearly $19.99 -> $14.99
Lifetime $49.99 -> $39.99
Also offering a 25% discount on Lifetime for a limited time 🔥
Now I'm also updating the pricing based on user feedback.
Monthly $2.99 -> $1.99
Yearly $19.99 -> $14.99
Lifetime $49.99 -> $39.99
Also offering a 25% discount on Lifetime for a limited time 🔥
Backdrop 1.4 is out! I've added a new detail view with a high-quality preview of each backdrop. Both the thumbnail and detail previews load nearly instantly, and have no negative effect on scrolling performance.
Also added support for Light Mode, and adopted more Liquid Glass design elements 💧
Also added support for Light Mode, and adopted more Liquid Glass design elements 💧
July 29, 2025 at 8:37 PM
Backdrop 1.4 is out! I've added a new detail view with a high-quality preview of each backdrop. Both the thumbnail and detail previews load nearly instantly, and have no negative effect on scrolling performance.
Also added support for Light Mode, and adopted more Liquid Glass design elements 💧
Also added support for Light Mode, and adopted more Liquid Glass design elements 💧
What if Backdrop could play 4K video wallpapers on your Mac lock screen? 👀
July 29, 2025 at 12:37 PM
What if Backdrop could play 4K video wallpapers on your Mac lock screen? 👀
Did you know that you can sample the background below a window on macOS?
NSVisualEffectView.windowBackground calculates the avg color of the wallpaper below your window. Together with masks and filters, you can create glass effects without the need for costly blur, making it super performant.
NSVisualEffectView.windowBackground calculates the avg color of the wallpaper below your window. Together with masks and filters, you can create glass effects without the need for costly blur, making it super performant.
July 27, 2025 at 4:03 PM
Did you know that you can sample the background below a window on macOS?
NSVisualEffectView.windowBackground calculates the avg color of the wallpaper below your window. Together with masks and filters, you can create glass effects without the need for costly blur, making it super performant.
NSVisualEffectView.windowBackground calculates the avg color of the wallpaper below your window. Together with masks and filters, you can create glass effects without the need for costly blur, making it super performant.
Just when Claude Code was getting good…
What are you gonna do when the weekly cap hits?
What are you gonna do when the weekly cap hits?
July 27, 2025 at 2:02 PM
Just when Claude Code was getting good…
What are you gonna do when the weekly cap hits?
What are you gonna do when the weekly cap hits?
The #1 requested feature for Backdrop is previews of the animated wallpapers.
It took a while, but it's finally happening!
It took a while, but it's finally happening!
July 25, 2025 at 9:01 AM
The #1 requested feature for Backdrop is previews of the animated wallpapers.
It took a while, but it's finally happening!
It took a while, but it's finally happening!
Built a paginated collection view with masonry/grid layout in SwiftUI. Should I open source it?
July 21, 2025 at 9:22 PM
Built a paginated collection view with masonry/grid layout in SwiftUI. Should I open source it?
Super happy with this design. Backdrop Editor on macOS Tahoe, featuring Liquid Glass UI.
Starting in Backdrop 1.4, you’ll be able to edit & create your own animated video wallpaper for your Mac.
Starting in Backdrop 1.4, you’ll be able to edit & create your own animated video wallpaper for your Mac.
July 9, 2025 at 11:08 AM
Super happy with this design. Backdrop Editor on macOS Tahoe, featuring Liquid Glass UI.
Starting in Backdrop 1.4, you’ll be able to edit & create your own animated video wallpaper for your Mac.
Starting in Backdrop 1.4, you’ll be able to edit & create your own animated video wallpaper for your Mac.
Found the first (and only?) actual use of the morphing Liquid Glass design in macOS Tahoe 🫧
July 1, 2025 at 1:05 PM
Found the first (and only?) actual use of the morphing Liquid Glass design in macOS Tahoe 🫧
💧 Sneak peek of the new Backdrop Editor. Create your own macOS video wallpaper in seconds, now with support for trimming, muting and optimising file size with a quality slider. Looks great with the glass style inspector on macOS Tahoe!
June 25, 2025 at 1:09 PM
💧 Sneak peek of the new Backdrop Editor. Create your own macOS video wallpaper in seconds, now with support for trimming, muting and optimising file size with a quality slider. Looks great with the glass style inspector on macOS Tahoe!
There’s a gigantic need for better tooling around AI coding. I hate opening a new Claude and burning tokens + time just to get it oriented again. Docs help, but I wonder if there are gains to be had from a proper, dynamic RAG pipeline with structural & semantic embeddings...
June 25, 2025 at 11:05 AM
There’s a gigantic need for better tooling around AI coding. I hate opening a new Claude and burning tokens + time just to get it oriented again. Docs help, but I wonder if there are gains to be had from a proper, dynamic RAG pipeline with structural & semantic embeddings...
Yikes, poor automator. macOS Tahoe did him dirty 🤖
June 24, 2025 at 9:59 PM
Yikes, poor automator. macOS Tahoe did him dirty 🤖
Loving this cute app by @ariv.se for getting quick ELI5's or learn new concepts.
Go check it out 👇
Go check it out 👇
I made my first Product Hunt post in 11 years.
Check out my tiny app ✨
www.producthunt.com/products/fac...
Check out my tiny app ✨
www.producthunt.com/products/fac...
Fact Ferret: AI-powered explanations for curious minds | Product Hunt
Fact Ferret uses AI to power learning journeys for curious minds. It's like having a really good teacher who explains things with the right analogies and just the right amount of detail.
www.producthunt.com
June 15, 2025 at 5:44 PM
Loving this cute app by @ariv.se for getting quick ELI5's or learn new concepts.
Go check it out 👇
Go check it out 👇
Is there a trick to get the sidebar in an NSSplitViewController to extend below the window buttons? Seems to work in SwiftUI, but not AppKit
June 12, 2025 at 1:07 PM
Is there a trick to get the sidebar in an NSSplitViewController to extend below the window buttons? Seems to work in SwiftUI, but not AppKit
The Sensei icon was truly ahead of its time 👀
June 12, 2025 at 11:47 AM
The Sensei icon was truly ahead of its time 👀
If the new Toggle shape is designed to "match the contour of the human finger", then you gotta ask... why has it been ported to macOS as well?
With the new shape and sizing of the UI on macOS Tahoe, it sure seems like Apple is preparing macOS for a touch-screen capable Mac to release in this cycle.
With the new shape and sizing of the UI on macOS Tahoe, it sure seems like Apple is preparing macOS for a touch-screen capable Mac to release in this cycle.
June 11, 2025 at 2:20 PM
If the new Toggle shape is designed to "match the contour of the human finger", then you gotta ask... why has it been ported to macOS as well?
With the new shape and sizing of the UI on macOS Tahoe, it sure seems like Apple is preparing macOS for a touch-screen capable Mac to release in this cycle.
With the new shape and sizing of the UI on macOS Tahoe, it sure seems like Apple is preparing macOS for a touch-screen capable Mac to release in this cycle.
Should I send off my reverse-engineering agent to decompile Liquid Glass on macOS, and create a library + complete demo playground app, giving you access to all the private parameters of various Liquid Glass effects in a custom component?
June 11, 2025 at 12:33 PM
Should I send off my reverse-engineering agent to decompile Liquid Glass on macOS, and create a library + complete demo playground app, giving you access to all the private parameters of various Liquid Glass effects in a custom component?
If you can dream it, formulate it in text, and pay $20 to Anthropic, you can build anything with Claude Code right now. Literally anything. In hours and days, not months or years.
June 11, 2025 at 11:57 AM
If you can dream it, formulate it in text, and pay $20 to Anthropic, you can build anything with Claude Code right now. Literally anything. In hours and days, not months or years.
With the larger, floating-style UI and the additional spacing it requires, screen space definitely feel quite cramped on macOS. While it works on low-UI experiences like iOS/iPadOS, the problems compound on macOS where you can have multiple windows, toolbars, sidebars etc.
June 10, 2025 at 1:24 PM
With the larger, floating-style UI and the additional spacing it requires, screen space definitely feel quite cramped on macOS. While it works on low-UI experiences like iOS/iPadOS, the problems compound on macOS where you can have multiple windows, toolbars, sidebars etc.
Nooo bring back the unified tab bar for Safari, please...A whole 100px of web page height is lost to this toolbar
June 10, 2025 at 1:07 PM
Nooo bring back the unified tab bar for Safari, please...A whole 100px of web page height is lost to this toolbar