I have always assumed this is about individual projects, but let me try talking about our team effort. We just launched exe.dev, and have lots of projects. In particular, we are spending a lot of time on file systems. The easy one is copy-on-write VM cloning, which existing software provides for us. More interestingly, I believe the standard cloud approach of putting everything on a NAS by default is wrong. Doing better here is going to require doing unusual things.

Finally, we decided to open source the exe.dev agent, Shelley. https://github.com/boldsoftware/shelley