While discussing a PR to add Windows compute shaders with Elias in https://github.com/gioui/gio/pull/14. One of the problems was that a generated shaders.go is getting out of hand (in the PR ~800kb). It would be much nicer to use //go:embed, however that will require bumping minimum required Go version to 1.16. It’ll take some time before all the parts for Windows get added, so there’s still time to upgrade your local/test environments and voice your concerns. tl;dr; sometime in the future, Go 1.16 will be minimum required version for Gio.