Oh, yeah, you're right. It seemed like OP was trying to prove he could "bare bones" it because the article was about how to avoid everything but a framebuffer,

Oh, yeah, you're right. It seemed like OP was trying to prove he could "bare bones" it because the article was about how to avoid everything but a framebuffer, so I thought I'd offer this up... LVGL is as bare-bones as it gets!