@delta @rpgp i am currently working on a rust zstd impl (i know one exists, i have an extremely strong critique of it. and it's the final format without a good rust impl we would like to see in the zip crate). in january/feb i hope to demonstrate a rewrite of the rustc build system (no cargo) for bootstrap improvements as well as potential perf goals. if i get to such a prototype i might want to then look at a vastly reduced CI artifact generation pipeline which incorporates pgp signing. i also hope rustc bootstrap improvement would be useful to all rust crypto/build infra codebases