I used S3 as a vibe code case study for whether I can just make my own. Learnings:

* Yes you can absolutely spin up a DIY S3 server

* When you run your server against a credible bench suite it throws a bunch of issues (ceph s3 - is disheartening 5 pass out of 800)

* Vibe coding can address the core issues & make significant progress on the 800 issues. Most of those 800 don't actually matter

* Low trust in resulting outcome, but I do plan on running some personal infra off DIY s3 - shopping list etc.

* Planning to roll some personal infra onto said S3, but with low confidence on