• My new app, Age Matched

    After Lucky4, I swore I’d take a break from app development, that was a small little project made for fun. Then came the moment every parent knows: scrolling through thousands of photos trying to find that ONE picture to show grandma.

    “How did your daughter look when she was exactly 6 months and a half old?”

    There had to be a better way.

    The Birth of an Obsession

    What started as a weekend project became a monster that consumed every free hour. After the kids went to bed, during lunch breaks – I was coding. Age Matched became my second job, except this one paid in sleepless nights and cold coffee.

    Timeline view comparing children at the same age

    The Technical Mountain

    Photo management isn’t sexy, but it’s brutally complex. Loading thousands of photos without melting the phone. Calculating ages down to the week because parents notice everything. Making it work in 19 languages because families are everywhere.

    Every feature that seems “simple” hides hours of complexity. That smooth age slider? Weeks of work. The photo grid that perfectly alternates between kids? I still have nightmares.

    The Turning Point

    Three months in, I almost quit. The app was functional but felt… mechanical. Then I watched my kids looking at old photos together, pointing out their first time seeing the ocean, laughing at how they both made the same face when trying lemons. Discovering these hidden connections between siblings – moments separated by years but united by age.

    That’s when it clicked – this wasn’t about organizing photos. It was about revealing the beautiful parallels in how our children grow.

    Memory map showing photo locations

    The Memory Map – my favorite feature for reliving where each moment happened

    The Launch

    Last week, Age Matched went live. Seeing it on the App Store felt surreal. All those stolen hours, all that lost sleep, compressed into a 6MB download.

    Is it perfect? Hell no. But it works. And more importantly, it helps families discover those magical similarities – the way both kids smiled at 6 months, their identical wonder seeing snow for the first time, how they conquered the same playground at different years but the exact same age.

    My personal favorite features? Creating collages that show the kids side by side at the same age – perfect for sharing with family. And the Memory Map, which transforms our chaotic photo library into a journey through time and space. Seeing all those pins on the map, each one a memory, each location a story – it’s like having a visual diary of our family adventures.

    Create beautiful photo collages with multiple children

    Side-by-side collages – the feature I use most

    The Lesson

    If you’re thinking about building something: know that it will consume you. It will steal your nights and make you question your sanity.

    There’s something addictive about creating. About solving problems. About building something that didn’t exist before.

    Just don’t expect to sleep much.


    Age Matched is on the App Store. Visit age-matched.com to learn more. Built during hundreds of midnight sessions, fueled by the parental need to discover the hidden threads that connect our children’s journeys.

  • My First App Is Live on the App Store – Meet Lucky4

    I’m really excited to share something a bit different from what I usually post here on bykrs.com — my first iOS app is now live on the Apple App Store!

    It’s called Lucky4, and it’s a minimal, camera-based app that uses computer vision to detect four-leaf clovers in real time. Yep, you just point your iPhone at a patch of clovers and the app does the rest — if you’re lucky enough, it’ll spot the magic one for you

    Lucky4 iOS app Logo

    I built this as a personal side quest. I’ve always believed there’s always time to learn something new, even if it’s outside your comfort zone. This app started as an experiment in machine learning and image recognition, but I ended up having a lot of fun building something that actually works — and might even bring a little good luck to people who try it.

    📱 Available now on the App Store

    🧠 Powered by on-device computer vision

    🎯 Built with simplicity, nature, and a bit of magic in mind

    Let me know what you think if you give it a try. I’d love to hear your feedback — and even more, I’d love to see your lucky clover finds.

    Sathia Francesco Musso

  • Just a Beetle, Doing Its Thing

    With everything going on in the world right now, it’s a breath of fresh air to pause and catch a moment like this — a beetle, wings halfway open, ready to take off from a bed of fresh blossoms. Nature keeps moving, and sometimes that’s exactly the reminder we need.

    A close-up photograph taken by Sathia Musso showing a green iridescent beetle about to take flight from a cluster of white spring blossoms, symbolizing the arrival of spring and the beauty of nature.
    📸 Photo by Sathia Musso
  • Having a blast with my son

    My son and I hopped onto the alpine coaster, our hearts racing with excitement. As we shot down the track, snowflakes swirled around us, landing on our faces.


    Maybe you can hear him say “Faster, I am not scared!” and me answering “of course you’re not, or I’m taking away your bike”

    good times, good times 🙂

  • Midnight in Turin

    City lights blurred through fog and smog, a strangely beautiful palette of blue gray and yellow

    Turin seen from the hilltop
  • Happy new year everyone ❤️

    For years, that steep two-meter rock had been my nemesis on the enduro trail. Each time I approached it, my heart would pound, and I’d steer away, defeated by my own fear
    Today felt different. As I stood at the base of the rock, I took a deep breath. I believed I could do it this time. On my first attempt, nerves got the better of me, and I backed off. The second try was better, but I hesitated midway and had to stop
    Determined, I went for it a third time. As I approached, I focused on the line I needed to take. My heart raced, but I pushed through, feeling the bike respond perfectly beneath me. Before I knew it, I was at the top, exhilarated
    I had finally conquered the rock. The fear that once held me back was now a distant memory, replaced by a sense of pride and accomplishment.

  • Monviso

    Monviso as it was this morning ♥️

  • Endo in Névache

    This is an endo made by Sathia Musso in Nevache with his mountain bike
    https://maps.app.goo.gl/PCbgsL2Xu42oS5CS7

    At the break of dawn, Alessandro and I kicked off our Sunday ride from Bardonecchia, aiming for the charm of Névache. The morning air was brisk, a perfect companion for our adventure as we opted for the lesser-known alpine route.

    Our first stop was a serene lake, offering a moment of tranquility before we tackled the climb to Aguille Rouge. Despite the rugged path, the panoramic views were nothing short of spectacular, with towering peaks and sprawling valleys stretching as far as the eye could see.

    The descent back to Bardonecchia was a thrilling ride. We raced down the mountainside, the wind whipping past us, each twist and turn a rush of excitement and shared laughter. By the time we rolled into Camp Smith, we were exhilarated, with stories of an unforgettable ride that took us from Bardonecchia to Névache and back again, proving that the adventurous route is always worth it.

    Lac Chavillon, Col de Thures. A pic by Sathia Musso
    Lac Chavillon, Col de Thures. 45.055, 6.629
    Lac Chavillon, Col de Thures. A pic by Sathia Musso
    Lac Chavillon, Col de Thures. 45.0553, 6.629
    A beautiful pic of Mont Thabor and Grand Serù
    A beautiful pic of Mont Thabor and Grand Serù

  • Vallée Étroite

    https://fr.wikipedia.org/wiki/Vall%C3%A9e_%C3%89troite
    45.072572, 6.621877

    Our family took a short trip to Vallée Étroite in early November, and we were surprised by the unusually warm weather.

    The hike to the green lake felt more like a late summer outing than a fall adventure. The foliage was still vibrant, but it was odd to experience such warmth during this time of year.

    It was a reminder of how climate change is affecting our seasons, even as we enjoyed the beauty of the landscape around us.

    Grand Serù https://it.wikipedia.org/wiki/Grand_Seru
  • Boletus edulis or enduro? Por que no los dos

    While riding my enduro bike along the forest trails, I suddenly spotted something on the ground. I stopped to investigate and was surprised to find a perfect boletus edulis.

    Its rich color stood out against the dirt, and I couldn’t help but smile at this unexpected find on my ride.

    Boletus Edulis, also known as Porcino in Italy
    I found this gem while doing a short Enduro ride today.
    That's me :) holding a boletus edulis