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romainguy.dev
Romain Guy
@romainguy.dev
3.2K followers 190 following 320 posts
Photography (https://curious-creature.com), Blog (https://romainguy.dev). In the past: Engineering Director, Android Toolkit team at Google.
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romainguy.dev
Ueno, Tokyo
November 7, 2025 at 2:11 AM
romainguy.dev
Sunrise at Mount Fuji
October 15, 2025 at 12:44 AM
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😂
October 7, 2025 at 3:28 PM
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Foggy Night — Tokyo, Japan
October 1, 2025 at 1:46 AM
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Bliss
www.flickr.com/photos/romai...
April 30, 2025 at 10:00 PM
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富士山
www.flickr.com/photos/romai...
April 22, 2025 at 3:45 AM
romainguy.dev
Kinship
Full resolution version at www.flickr.com/photos/romai...
April 18, 2025 at 5:28 PM
romainguy.dev
Tranquility, Shirakabako
#Photography
March 27, 2025 at 7:24 PM
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Photo qui résume mon expérience de la conduite au Japon
March 27, 2025 at 3:25 AM
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Pals, Shibuya, Tokyo.
#Photography

www.flickr.com/photos/romai...
March 27, 2025 at 2:27 AM
romainguy.dev
Under a Bridge
www.curious-creature.com/posts/2025/u...
March 6, 2025 at 2:26 AM
romainguy.dev
First light
www.curious-creature.com/posts/2025/f...
February 15, 2025 at 11:11 PM
romainguy.dev
Alone
www.curious-creature.com/posts/2025/a...
February 12, 2025 at 6:43 AM
romainguy.dev
Quiet Night II
www.curious-creature.com/posts/2025/q...
February 7, 2025 at 2:36 AM
romainguy.dev
Fall Sunset — La Sal Mountains, Utah
www.curious-creature.com/posts/2025/f...
February 2, 2025 at 1:58 AM
romainguy.dev
Having replayed through the new Sam and Max games (remastered), I'm trying something a bit different. So next up in my point and click adventure games list is The Fish Files on GameBoy Color. I started playing it when it originally came out, but never finished it.
December 31, 2024 at 6:14 PM
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December 16, 2024 at 1:10 AM
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December 16, 2024 at 1:10 AM
romainguy.dev
December 16, 2024 at 1:10 AM
romainguy.dev
It's the end of 2024 so I'm of course still (slowly) going through the list of photos I took in 2023. Here are the some of the photos from my trips in Japan last year.
December 16, 2024 at 1:10 AM
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Today's a fun day 🏎
December 7, 2024 at 8:18 PM
romainguy.dev
First, because it would mirror the boolean not operator, but also because it can make reading bit twiddling expressions needlessly surprising since it comes last (screenshot). In the screenshot I even preferred writing -1 instead of 0.inv(). This function makes me grumpy every time I use it 😀
November 28, 2024 at 5:54 PM
romainguy.dev
I love Kotlin but please don't abuse its features. I regularly see code like in the first function when you can instead write a simple if statement: it's shorter, easier to read, and doesn't allocate an object!

Thankfully both functions compile to the same assembly when R8 is turned on.
Two Kotlin functions that take 2 float parameters a and b. Each function returns a divided by b if b is not 0, or a constant called DefaultValue otherwise. The first function does so using takeIf, let, and the "elvis" operator. The second function uses a simple if/else statement.
November 27, 2024 at 6:20 PM
romainguy.dev
I took this photo 18 years ago with my first DSLR, and it's one of the photos I took that made me fall in love with the hobby. You may have seen it as an Android, ChromeOS, or even Gmail wallpaper/theme too!

I should really take the time to take more photos of landscapes, I miss it.
November 22, 2024 at 1:47 AM
romainguy.dev
Doing more work can help the compiler generate code that does less. In this example, a simple linear search in an array-backed collection is slightly modified to completely eliminate the array bounds check on every iteration.
Kotlin method called indexOf that performs a linear search of a specified value inside an array called elements. The number of entries in the array is tracked by a property called size. The linear search is a for loop from 0 until size. Kotlin method called indexOf that performs a linear search of a specified value inside an array called elements. The number of entries in the array is tracked by a property called size. The linear search is a for loop from 0 until the minimum of the size property and the size of the elements array.
November 20, 2024 at 5:52 PM