This looks nice. What would be good on-prem S3 companion for this? I know if minio but I think there was some recent drama about it (I don't know specifics, just a feeling)
I run distribution [0] / registry [1] as a docker (via Nomad) job, and it just uses a shared nfs mount in my cluster - ie. EXT4 FS underneath.
Currently has 12GB and 52 repositories, and is very performant. It's just a file server.
Unless your size requirements are huge, the complexity of having your registry rely on a self-hosted S3-alike sounds like a lot of pain for future-muhehe to contend with if / when the S3-alike hiccups.
I use mine primarily for long-term stores for Grafana's Mimir and Loki products.
Anyway, minio & garage are both lightweight, and happily run in docker, so if you've got a small cluster at home it would take maybe an hour or two to install them both from scratch.
I'm using it in my lab, along with an older instance of minio, and both are excellent choices I think. (I'm running both as HA jobs within a Hashicorp Nomad cluster, which complicates / eases various things.)
I had a vague memory of minio losing some favour a while back because they switched their underlying storage from basic object : normal file mapping to something more complex. A lot of home users, and I guess developers, liked the ability to navigate their S3-esque buckets via normal linux file system tooling.
Sometimes you'll need admin skills, but only if you spread your cluster out over availability zones or poor connections