I'm not sure what you mean 1GB. An empty tab on Chromium seems to take about 30MB. Minimal "Hello world" GTK and Qt programs are around the same size. Modern X

I'm not sure what you mean 1GB. An empty tab on Chromium seems to take about 30MB. Minimal "Hello world" GTK and Qt programs are around the same size. Modern Xorg is also using the KMS API. If you don't want any fancy features and just want to draw some lines then you probably want to skip Xorg and Wayland altogether and use KMS directly.