And sadly something that higher layers will glibly ignore as they race after the latest shiny, while wondering why "year of the linux desktop" has yet to happen

And sadly something that higher layers will glibly ignore as they race after the latest shiny, while wondering why "year of the linux desktop" has yet to happen. When software devs ask for a consistent toolkit, they are not asking for a single toolkit across the range of Linux installs. But a toolkit that is by policy stable for a decade or more on the API/ABI level.