Trow is a container registry. It is designed to integrate into Kubernetes clusters, providing solutions for image provenance and auditing, as well as fast distribution of images. It currently passes all the OCI Distribution conformance tests and is almost at the stage where it could be seriously considered for projects. I personally believe the space the project sits in is overdue for change and will see new developments with or without us. We’re seeing this already with Google's move from GCR to Artifact Registry, the ORAS project, Kraken and Dragonfly. Trow is nicely positioned and with a bit of a push could be relevant in the space.
Trow is implemented in Rust. We chose Rust as it compiles down into a binary, which allows to create something fast & lightweight. The downsides are that there is a learning curve to getting started with Rust and the library ecosystem is still evolving. Regarding the learning curve, we are running a regular Rust tutorial which everyone is welcome to join.