I'm Mario Ranftl (majodev), an senior software engineer from Austria. This site is an experiment to write (and ramble on) about my professional life.2025-05-02T14:25:36.131ZMario Ranftlhttps://mranftl.com/https://mranftl.com/apple-touch-icon-precomposed.pnghttps://mranftl.com/tile-wide.png © 2025 Mario Ranftl https://mranftl.com/2025/05/02/designing-a-hyperscaler/2025-05-02T14:10:17.744Z2025-05-02T00:00:00.000Z

During interviews, I’ve noticed a common challenge that keeps coming up. SRE teams love to test candidates with this multi-regional cluster design question:

Mario Ranftlhttps://mranftl.com/2025/04/25/do-kubernetes-requests-have-a-runtime-impact/2025-05-02T14:21:39.751Z2025-04-25T00:00:00.000Z

Trick question ahead!

Mario Ranftlhttps://mranftl.com/2014/12/23/self-hosting-google-web-fonts/2025-03-10T10:32:57.361Z2014-12-23T00:00:00.000Z

Let’s be clear: hosting Google web fonts in a GDPR compliant way on your own server requires significant effort. You’ll need to download all the necessary .eot, .woff, .woff2, .ttf, and .svg files, upload them to your server, and then add the corresponding CSS snippet.

Mario Ranftlhttps://mranftl.com/2014/11/28/valgrind-on-mac-os-x-10-10-yosemite/2025-03-02T17:23:21.879Z2014-11-28T00:00:00.000Z

You want to hack with C and Valgrind on OS X 10.10 Yosemite? Well, you’ll definitely run into problems getting it for your very platform, as there is no official stable release out there yet. Consequentially these is no receipt for Homebrew (which is great anyways, get it!), hence you need to manually build that nifty tool from the latest trunk SVN repository.

Mario Ranftlhttps://mranftl.com/2014/10/01/extracting-libs-from-a-node-js-project/2025-03-02T17:23:51.642Z2014-10-01T00:00:00.000Z

As promised, lets break out my customized plugins I’ve used with metalsmith to build up this site. I had to rename them (see this pull request) in order to be allowed to publish them on metalsmith.io.

Mario Ranftlhttps://mranftl.com/2014/09/30/hello-world/2025-03-02T17:23:51.642Z2014-09-30T00:00:00.000Z

Hello World! You are reading the first published note on my shiny new site. Currently everything feels a bit empty, but I hope I can fill things up with useful information ASAP.

Mario Ranftl