The crosvm project which powers crostini is both open source ( https://chromium.googlesource.com/chromiumos/platform/crosvm/ https://chromium.googlesource.com/c

The crosvm project which powers crostini is both open source ( https://chromium.googlesource.com/chromiumos/platform/crosvm/ https://chromium.googlesource.com/chromiumos/platform/crosvm... ) and on many people's machine (most Chromebooks) which might fit some definition of not controlled and not uniform.