Aws-Doctor - Collection - Compa Compilahttps://www.compacompila.com/collections/aws-doctor/Learn at your pace. A blog focused on Software engineering and AWSHugo 0.142.0 & FixIt v0.3.17encompacompila.com@gmail.com (El Compa)compacompila.com@gmail.com (El Compa)Sun, 22 Mar 2026 08:04:38 +0400From flags to subcommands: Rewriting a Go CLI with Cobrahttps://www.compacompila.com/posts/aws-doctor-v2/Sun, 22 Mar 2026 08:04:38 +0400El Compahttps://www.compacompila.com/posts/aws-doctor-v2/<div class="featured-image"> <img src="https://www.compacompila.com/images/posts/aws-doctor-v2.webp" referrerpolicy="no-referrer" style="width: 100%; max-width: 640px; height: auto;"> </div>I built an open-source AWS cost optimization tool in Go, but as it grew, the standard flag package became a bottleneck. Here is my experience rewriting the CLI architecture with Cobra, the breaking changes it caused, and why it was worth it.From 30 to Over 200 Stars in a Week: My Adventure Creating aws-doctorhttps://www.compacompila.com/posts/aws-doctor/Mon, 26 Jan 2026 12:04:38 +0400El Compahttps://www.compacompila.com/posts/aws-doctor/<div class="featured-image"> <img src="https://www.compacompila.com/images/posts/aws-doctor.webp" referrerpolicy="no-referrer" style="width: 100%; max-width: 640px; height: auto;"> </div>How a personal project to save costs on AWS ended up gaining traction on Hacker News. I'll share the process, the community feedback, and what I've learned launching my own open source tool.