• Rails: How To Migrate S3 Providers Via ActiveStorage Mirroring

    So you want to switch S3 object storage providers in your Rails application.Here’s how you do it! Random context: If you’re building companies in Europe like me, it seems to be a common thing to switch cloud providers – they’re mostly not as good as AWS, and with new offerings coming out regularly, it often…

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  • How To Find An Alternative Career As a Doctor

    Medical students and doctors often ask me how the hell I managed to leave the hospital and work as a software engineer (and later, founder) instead. We usually would schedule a call and somewhat aimlessly do a Q&A in the optimistic hope of the other person asking me good questions, and the even more optimistic…

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  • Using Hetzner S3 Object Storage in Rails

    Hetzner recently launched their S3-compatible object storage. Like many other Hetzner services, their object storage offering looks really interesting because it’s significantly less expensive than the competition, especially AWS – the initial pricing suggests it’s ~4x cheaper for storage, and ~50x (!) cheaper for traffic. Let’s look how you can use it in Ruby on…

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  • Acarbose: Life-Changing Farts You Will Remember

    As with some of my self-experiments, Acarbose is one of those where I can’t remember my reason for starting it. I think it was some sort of simplified cave man reasoning ™ along the lines of “Acarbose.. modifies gut bacteria.. good.. must try.. walking to pharmacy now.. showing doctor’s ID.. thank you”. And so it…

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  • All My Hacks For Founding a Company In Germany (And Running It)

    I’ve been running OpenRegulatory for ~5 years now. It’s profitable, there are five people working here, and I bootstrapped all of it, so I still own 100% of the company, with zero investors. Cool, great, well done dude, blablabla.. Anyway, in the meantime, a few people approached me on how to found a company in…

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  • Vitamin B12: You Should Probably Be Injecting Hydroxocobalamin

    Vitamin B12 (cobalamin) is an interesting one, because many people (including doctors, and including me until recently!) don’t know much about it. Let’s take a look, and let me explain why you might want to be injecting hydroxocobalamin. But let’s not get ahead of ourselves! Before we get started: What the hell is Vitamin B12?…

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  • I would really, really love to be able to like Cloud Code. The idea of simplifying any backend into one unified platform with push-capabilities and node.js-style extendability sounds awesome. However, I ended up struggling. I am by no means a…

  • Oh wow, now this is really neat. Moving content away from my server to GitHub didn’t make me feel that good in the first place, but if everyone does it, it must be good, right? No, mostly I got annoyed when…