Very coarse and likely to change roadmap: - Define draft spec. <-- We are here - Refine into proper spec. - Develop simple python library. - Develop simple standalone tooling using the library to manually create and inspect the files - Implement in a few existing Python applications internally, _without_ making PRs. - If no new concerns arise, do the same steps for other popular languages/tools. - Once everything is working and the spec seems good enough, send PRs to all applications at once. - Maybe somewhere along the way see if we can get the support of other interested parties.