Christoph Lupprich

Who would've thought I'd actually enjoy writing JavaScript - with Stimulus, mind you:

A former coworker with 8 years of #ElixirLang experience is looking for work. I can vouch for him being a careful, thorough engineer, and a real "manager of one." If he builds something, you can be confident it'll be solid and well thought out. Reach out here: www.linkedin.com/in/kylevsteg...

Mysterious warning to Ruby app maintainers: “bundle update rack” asap.

I got tired of seeing people complain “RSpec and factories takes 14 min to run, minitest and takes 5s” so I’m starting to chip away at it. First order of business: created FixtureBot after figuring out I use FactoryBot not because of factories, but because I like the syntax. Might try sus next.

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?

So I built my own solution: Crow's Nest. It's a dead-simple dashboard that connects to your Harvest account and shows: - Your total weekly capacity. - Hours you've committed. - How many hours are actually left. No more guessing.

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.

Ran into a race condition on @Railway.com when deploying Rails with web + Solid Queue worker. Unlike Heroku's single release phase, Railway runs pre-deploy commands per service. Solution: wrapped the migrate in a wrapper script to erialize migrations across services: gist.github.com/clupprich/a...

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.com 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/postg...

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

Coming from Rails, the lack of a proper console is my #1 Python pain point. Django’s manage.py shell gets you halfway there, but what are FastAPI/Flask folks doing? One-off scripts? Custom REPLs? Suffering?

I've got a surprise for hotwire.club members coming up 🥁 ... an MCP server containing the entire knowledge base of challenges and solution up to date! There will be a free version, don't worry. The full version will be limited to DC members OR available for purchase from the shop.

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

I declare today a national holiday in my household: Garmin finally gave me back that 1pt VO2max it stole during winter. #devswhorun

Hey bksy, I’m on the look out for my next project, I’m an experienced Elixir dev (> 8 years commercially, and > 10 years of Ruby before that + I'm still the maintainer of RSpec), very familiar with Phoenix and LiveView, and have enough CSS / JS knowledge to approach projects from a full stack angle.

Just discovered github.com/mixxorz/DSLR, which is a successor of stellar (which I previously used). Makes snapshotting your Postgres database ridiculously easy.

By now I lost count of how many times I've re-implemented Rails' create_or_find_by in other frameworks. Once got told not to use it because it "clutters the Postgres logs". Apparently Postgres is logging constraint violations per default, and it's not easy to turn that off?

Although I really like it over here, I still have to say that there's more buzz over at X. That's not necessarily a good thing (as a full metro isn't necessarily a good thing), but I kind of feel I'm missing out?

Had a wonderful time at @friendlyrb.com. Met so many nice and interesting people, my mind and heart are full. Thanks to @lucianghinda.com, @adrianthedev.com, @jakob.codefrwd.com, @stefancosma.xyz, @alexmarinescu.com, and everyone else for making this happen! ❤️

On my way to @friendlyrb.com - looking forward to see familiar faces and meet new ones!

Today is my last day at the company I’ve contracted with for the past 11 years. I never thought I’d stay this long, and I’m amazed at how much we’ve accomplished together. The best part? It’s not bittersweet - I’m genuinely excited for what comes next.

LinkedIn can't do message drafts? My world is shattered. Where is all the money going?

I have mixed feelings about Python, but I enjoyed using UV - an all-in-one solution in a fragmented ecosystem. Excited to see a similar tool starting for Ruby: github.com/spinel-coop/rv

TIL: git commit --fixup <SHA> (You don't wanna know about my previous workflow, haha)

Finally submitted my little running app to Strava for review 🤞

Good news: I’m available for contract work! 10+ yrs building full-stack web applications (Rails + Vue, exploring Elixir). Experienced in global remote teams. Love solving complex business problems, scaling systems & debugging tricky issues. DM me if you need a seasoned #RubyOnRails engineer!

💪 #devswhorun #running

Almost missed that my all-time favorite podcast is out with a new series about the history of the Space Shuttle: www.bbc.co.uk/programmes/p...