@msicc.net
.NET & Swift developer working on mobile apps and backend APIs. Exploring AI/LLMs and learning React. Runner, blogger at msicc.net, husband & father 🇨🇭🇮🇹🇩🇪 #Developer #DevLife #dotnet #swift #iOS #Running #iPhonePhotography #AI
Well, this was a #productive week for my side projects. I released my first app to the #Mac #AppStore, made a new template for my app landing pages & used it immediately, reworked my #GitHub profile page and started to plan the redesign of my #portfolio website.
#devlife #springcleanup
Today’s training summary from the Runna app
Today's #training was this week's #EasyRun - of course with some hills, as always 😎✌️
strava.app.link/Au4nfdJyg1b
#running #laufen #corsa #Runna #Strava #AppleWatch
Today’s training summary from the Runna app
Today's training was a #ProgressiveRun on #hills - one of the harder ones (look at that hills!)!
strava.app.link/oK3VnSzed1b
#running #corsa #laufen #Strava #Runna #AppleWatch
I am testing out the limits of Codex atm, which includes both VS Code and Xcode. I used Copilot on both before, with VS Code having better support. At work, we are only allowed to use Copilot.
if I wouldn’t have paid a year I advance for Copilot, I would probably go free. With the new Xcode also supporting Codex natively, I have a far better experience than with Copilot. At least for now. But that could change with the next update to either of them, so 🤷♂️😂
Good decision. I am recently doing more work with Codex than with Copilot. 🤷♂️
Today’s training summary from the Runna app
Today's #training was a 15 km #EasyRun, which was not so easy because I was busy to stay in the easy zone.
strava.app.link/h5HaHu6j90b
#running #laufen #corsa #Runna #Strava #AppleWatch
Sun is shining at the Töss river near Winterthur, Switzerland
Sun is shining at the Töss river near Winterthur, Switzerland
Sun is shining at the Töss river near Winterthur, Switzerland
Sun is shining at the Töss river near Winterthur, Switzerland
#Sun is shining, temperature is already at 16 degrees Celsius, so I went for a quick #walk of half an hour after #lunch 😎✌️
Today’s training results from the Runna app
Today's training were #HillRepeats (running 60s hard #uphill). Getting used to them.
strava.app.link/bRgxE3zU10b
#running #laufen #corsa #AppleWatch #Runna #Strava
Me with today’s training summary from the Runna app
Today I went out for an #EasyRun of 12 km. During the first half, I was accompanied by my neighbor who re-entered after a small injury.
strava.app.link/skDXVgdBX0b
#running #laufen #corsa #Strava #Runna #AppleWatch
In the latest AI Context Kit update, I moved toward AGENTS.md and Agent Skills — aligning with emerging standards instead of maintaining custom conventions.
I wrote a blog post about the migration:
msicc.net/2026-02-21-ai-conte...
#AI #LLMs #AgentSkills #AGENTSmd #SoftwareEngineering #DevTools
Today’s training summary from the Runna app
Today's #training was a #LongRun in blocks at #RPE 5/6 on hills during #lunch break.
strava.app.link/mhT0uyaXS0b
#running #laufen #corsa #Runna #Strava #AppleWatch
If a watched CI build never finishes, it even more doesn't finish when you're watching it and thinking you're going to bed just as soon as it's done...
Today’s training results from the Runna app
Today's #training were 1.2km #intervals at 4:50/km with 400m at 6:05/km in between (with some warmup/cooldown at conversational pace as well). Had to pause (stop!) for a few seconds after 3 out of 4 intervals😖.
strava.app.link/KmFnR1jXP0b
#running #corsa #laufen #Runna #Strava #AppleWatch
I am positively surprised how well #Codex and I #work together, especially during the migration of my #AIContextKit to adopt AGENTS.md and #agent Skills. The Codex app on macOS makes it very easy to focus on the #engineering part of this process.
Me with today’s training summary from the Runna app
Back from #vacation with a #ProgressiveRun. Nice 😊👍
strava.app.link/BnJAssQrM0b
#running #laufen #corsa #Strava #Runna #AppleWatch
Me and my wife during our ski lesson earlier this week
Mountain View over Andermatt, Switzerland
A Walk in the snow at Andermatt, Switzerland
Sadly, today is the last day of our #winter #holiday here in #Andermatt (#Switzerland). We really enjoyed this week with a lot of "first time doing x", and we're definitely coming back for another #vacation.
If you are into #agentic coding, this post by the #OpenAI team has a lot of good advice in it - not only valuable tor #Codex!
Harness engineering: leveraging Codex in an agent-first world
openai.com/index/harness-engi...
#AI #agents #learning
Me and my wife during a walk in Andermatt, Switzerland
They gave our love a mere 3 months - as of today, we've surpassed that 100 times! Through all the ups & downs #life threw our way, we've managed to stay together for #25years. We've grown 2 wonderful children together, and our #love for each other has only grown stronger with time.
#anniversary
I’ve completed the LeadEssentials course and earned the Blue Belt.
It was challenging at times, but helped me rethink how I approach Swift codebases - especially when it comes to structure, testing, and long-term evolution.
msicc.net/2026-02-07-l...
#Swift #iOSDev #Learning #SoftwareArchitecture
Today’s training summary from the Runna app
Today's training were #HillRepeats - first 60s hard #uphill (7 times), then 30s hard uphill (also 7 times).
strava.app.link/33njaDZMs0b
#running #laufen #corsa #AppleWatch #Strava #Runna
Me with today’s training summary from the Runna app
#Easy #Sunday morning #run ☺️👋🫶.
Had to run 1km extra to get back home. 🤷♂️
strava.app.link/p68RYQqQo0b
#running #laufen #corsa #Runna #AppleWatch #Strava
A field of hundreds of snowmen lined up in neat rows, like an army, each holding a long spear.
Meanwhile in Greenland...
Today’s training summary from the Runna app
Today's #training was my weekly #LongRun - of course with #hills ☺️
strava.app.link/Y13peozxk0b
#running #laufen #corsa #Runna #AppleWatch #Strava
Today’s running results from the Runna app
Today I went out for a #FreeRun with the #neighbor on which we agreed spontaneously yesterday. Wish we could do this more often, it helps me to keep it easy!
strava.app.link/QEMkPpv6c0b
#running #laufen #corsa #Runna #Strava #AppleWatch
Very interesting article on how #Codex agentic workflow works under the hood:
Unrolling the Codex agent loop
openai.com/index/unrolling-th...
#AI #LLM #Agent #tools #VS Code #CLI
Me with today’s training results from the Runna so
Closing another work week with another #EasyRun ☺️
strava.app.link/RuL8sCmta0b
#running #corsa #laufen #Strava #Runna #AppleWatch
Me with today’s training summary from the Runna app
Today's #training was a #LongRun in blocks:
- 4.5km @ conversational pace
- 11.5km @ 5:35 / km
- 1 km @ conversational pace
strava.app.link/3EMuTD3Z8Zb
#running #laufen #corsa #AppleWatch #Strava #Runna
Two months later, I am still waiting for a response to my appeal… 🫣🤔 #Claude @anthropic.com
Me with today’s training summary from the Runna app
Today's #training was a 3-2-1 #TempoRun
(3km @ 5:10, 2km @ 5:00, 1km @ 4:55). I really like these kind of training.
strava.app.link/pVwENz694Zb
#running #laufen #corsa #Strava #Runna #AppleWatch