We use jib at work (https://github.com/GoogleContainerTools/jib) which also skips the Dockerfile and builds an image for a Java project directly.

This certainly looks like a much nicer experience than docker build, especially given that there can be a cache hit after a cache miss.

Excited to check this out! Been using rwx and it's already much faster than github actions. Interested to see how this speeds up our builds.

Really interested to give this a try. I haven't used RWX for CI yet (overall my builds wouldn't have benefited enough from the caching), but docker build times are definitely a pebble in my shoe

Am I missing something or does rwx not have a free/self-hosted option?

Hey! I'm one of the RWX cofounders. We don't have a self-hosted option yet, but we're interested in opening it up in the future. Our infrastructure is more complex to run than normal self-hosted runners infrastructure, due to extensive caching and provisioning optimizations.

Love these problems being solved at a platform level rather than just a language level.