I enjoy building reliable systems, automating everything, and diving deep into cloud infrastructure and security.

But this space is more than tech. Here you'll also find personal reflections, travel stories, thoughts on money, business, and life in general. Expect to get to know me beyond the terminal.

AWS EKS VPC CNI Prefix Delegation

NOTE: I know the cover image has nothing to do with this post, I just found it in my photos and thought it was pretty One thing I wanted to document somewhere is a finding I just while I was working on a project. I’ve been building a Kubernetes cluster using AWS EKS (Elastic Kubernetes Service), with the fantastic terraform-aws-modules Here’s the example I’m using (trimmed for brevity) module "eks" { source = "terraform-aws-modules/eks/aws" version = "~> 21.0" kubernetes_version = "1.34" ... addons = { vpc-cni = { before_compute = true } } ... } Problem I am deploying things but Pods get stuck in Pending with the note “Too many pods 0/N nodes are available”. I checked and have sufficient memory and cpu resources to allocate them. ...

February 13, 2026 · 4 min · oschvr

Nostalgia

A little more than two years ago, I started experiencing a very unique feeling, the sort of complex emotion that’s hard to put into words, but that I’d describe as a “bittersweet, existential, anxiety-inducing nostalgia.” I’m not quite sure how else to put it, and I’m writing this as a way to see if putting it into words can help me clarify it in a more structured form. Many days, I’d go to sleep and wake up feeling this bizarre mixture of happiness and melancholy. ...

December 30, 2025 · 2 min · oschvr

Un autre démenagement

Je voudrais commencer en dissant que ce-ci est mon premier post en francais (j’ai utilise languagetool.org), alors aies-moi patience. Il fait déjà 1+ an que moi et ma famille, nous avons déménagé en Belgique. Je ne me sens pas étranger aux déménagements disruptifs comme ce qu’on a fait, mais de le faire avec un enfant de cinq mois, c’était énormément dur. Dès que je suis arrivé en Belgique, au travers du système d’immigration, j’étais obligé de m’enregistrer à la commune pour commencer mon processus pour vérifier mon statut et pouvoir recevoir ma carte de séjour. ...

October 15, 2024 · 2 min · oschvr

1000 days of Duolingo

I have just completed a 1000 days streak on Duolingo learning French (from English) and I wanted to make a blog post dedicating this achievement to Duolingo and all the language enthusiasts that are using it across the world. In my humble opinion, as a technologist and ethusiast myself, Duolingo is one of the best apps that have ever existed. I have to say that there wasn’t any time while using it where I didn’t notice the effort that went into building it. From the language coverage, to the speech features to the gamification mechanics. ...

January 10, 2024 · 4 min · oschvr

Is Github Alive

It’s been recently noticeable that me and my team have had to halt development or progress due to a Github outage. This has been much more visible since Microsoft acquired Github As an SRE myself, I can’t help but wonder what is going on at Github/Microsoft… Is it because Github moved to Azure and the real cause of unrelaiblity is that Azure can’t cope? Is it because Github has a ton more features that are not well built? ...

May 11, 2023 · 2 min · oschvr