Markus Ostertag - Bloghttps://daily-online.de/blog/Thoughts on AWS, cloud architecture, engineering leadership, technology and everything else.enSat, 10 Oct 2026 15:58:26 +0200We Stopped Thinking Together - Why This Blog Has No Schedulehttps://daily-online.de/blog/we-stopped-thinking-together/Sat, 10 Oct 2026 00:00:00 +0000https://daily-online.de/blog/we-stopped-thinking-together/This blog has no posting schedule, and that's deliberate. A piece about why I'd rather think a topic through than feed the attention economy, and what social media has done to the way we exchange ideas.just thoughtssocial-mediadeep-thinkingTwelve Years of Showing Up - Organizing the AWS User Group Munichhttps://daily-online.de/blog/twelve-years-of-showing-up/Sat, 12 Sep 2026 00:00:00 +0000https://daily-online.de/blog/twelve-years-of-showing-up/I've run the AWS User Group Munich for over twelve years - through a cancelled speaker tour, a full COVID pause, and over a decade of showing up. Here's what actually keeps a volunteer-run community alive after the excitement fades.communityleadershipaws-user-groupThe Shared Responsibility Model is Shiftinghttps://daily-online.de/blog/shared-responsibility-model-is-shifting/Sat, 29 Aug 2026 00:00:00 +0000https://daily-online.de/blog/shared-responsibility-model-is-shifting/The AWS shared responsibility model isn't a fixed line - it's a slider. Where it sits depends on which services you choose, and that has real consequences for cost, staffing, sovereignty, and security.awscloud-securityshared-responsibility-modelBuy vs. Build in the Age of AIhttps://daily-online.de/blog/buy-vs-build-in-the-age-of-ai/Sun, 23 Aug 2026 00:00:00 +0000https://daily-online.de/blog/buy-vs-build-in-the-age-of-ai/AI made building feel free, and everyone is rushing to build. But for production systems, the cost of v1 was never the problem - operating and evolving it was. Sometimes buying is still the smarter call.just thoughtsHello World - Back to writing (with or without AI)https://daily-online.de/blog/hello-world/Sat, 22 Aug 2026 00:00:00 +0000https://daily-online.de/blog/hello-world/After more than a decade of speaking and organizing but not writing, a LinkedIn post about AI slop reminded me that blog posts can be conversation starters too. Here's why I'm back and how I plan to write.just thoughts