Christoph

Been tinkering with a little app to get insights into the performance of your GitLab CI pipelines, mainly to spot degradations and verify that improvements are actually… improvements. Curious if anyone else would be interested in it?

Took running a little easier over the last couple of months because it was quite cold, slippery, and honestly my mind just wasn‘t in it. Did hard runs on Wednesday and today, and while I‘m pretty exhausted now 😅, it feels great.

Solution: wrapped the migrate in a wrapper script to serialize migrations across services: gist.github.com/clupprich/a2c9…

Ran into a race condition on @Railway when deploying Rails with web + Solid Queue worker. Unlike Heroku's single release phase, Railway runs pre-deploy commands per service.

What‘s everyone using to send transactional emails these days? Still Mailgun? I heard that Postmark is back, too? Please don‘t say AWS - I just hate their UI.

I moved a #Rails app from Heroku to @Railway yesterday and just created a new one there. Very solid experience, guess I found the new home for my projects.

First blog post in… a while (201?). Replaced Redis locks with a Postgres sequence at 90M+ units/year. Sub-millisecond performance, zero deadlocks, simpler architecture. Sometimes the best solution is using what you already have. christoph.luppri.ch/posts/postgres…

@philkellr There‘s also a scientific reasoning behind delaying coffee: ai.hubermanlab.com/s/-9_7magy

@clupprich It’s strange. I never heard of this coffee bug before. Just recently some people told me about it

Day #5 of sustainable side building with a 9-5 job Tried a new morning routine: 5:30 wake up, shower, drink 0.5l water, small Tai Chi session (first time) 6:15 building with slow pace as energy allowed Now at Sat 9:00 I feel like I have accomplished a lot and can spend the day with the family. I don't feel like I have overheated my brain - yesterday this happened and I think drinking coffee triggered it

@Pauline_Cx I‘ve got the same feelings. Gonna stick to my mini as long as I can.

A week after the new iphone: I miss my iphone SE :( I bought the smallest of the new iphones but it's way too big for me and frustrating to use. I wish they will one day release small iphone, SE size again.

@PhilippSpiess Sorry to hear that! But I‘m sure this is just the start for a new beginning - you‘ll do amazing!

Personal news: After 1.5 incredible years, my time at Tailwind Labs has come to an end. I’m starting 2026 with a blank canvas: time to experiment, write, and build.

@hjelm_co +1. The Shopify ecosystem is for sure also a great benefit - less things you need to care about like payments and distribution. Did you hang out in the forums to get the inspiration?

@clupprich I needed to start with something fairly simple and with a limited scope. This seemed like a good possibility.

2026 I’m trying something new. I’m building Shopify apps. Focused tools for real merchant problems. First app is under review. Let’s see where this goes.

@hjelm_co Oh, the specific niche of the app within Shopify. But I just caught up on your profile 😅, so I guess because of your exposure to Shopify you‘ve seen a lot already

@clupprich Shopify? Fairly big market and lots of interesting problems to solve. 🙂

@jeremysmithco @strzibnyj I started using github.com/kaspth/oaken in some of my projects, which pulls fixtures together into a single file per „use-case“. Takes a little time to get into it, but happy with the approach.

@strzibnyj To me, this is much preferred. I'd rather each test be self-contained, building up only the set pieces necessary, with as few "mystery guests" from outside as possible. I don't want to open 4 fixture files to trace an object graph, just to understand a single test's setup.

The hidden cost of fixtures is the time spent trying to understand the ones you didn't create (or don't remember). Dropping into a test with extensive fixtures is like trying to make sense out of a scene from Harry Potter book 5, without the worldbuilding of the previous 4.

TIL SolidQueue lets you schedule a single line of Ruby inline in the config file - no separate job class needed. 15 years in and Rails keeps finding ways to delight.

Two small improvements that would make my GitLab workflow smoother: - Preserve form state when changing the base branch while creating an MR - Check if an MR is still mergeable when the base branch changes - not only when someone views it

@HenriHelvetica They are very solid shoes. Probably not my favorites in terms of feel, but I guess they will last way longer than my last couple of Ons, which is a plus.

@clupprich How are the Pegs? My running come up was made off the back of the Peg 33s. LOVED them. The new series is very interesting!

My On running shoes gave out after just 400km, so I decided to try Nike for the first time. Ordered the Pegasus Plus - excited to see how they perform! #devswhorun #running

Haven't been running for a week (wisdom teeth extraction + a cold with fever), and oh boy do I miss it.

You can enroll in my animation course for the next 10 days! It's the perfect way to learn the theory behind great animations, but also how to build them in code. We'll cover all of these components and more, source code included.