VMU
#include <d3tui/vmu.h>
// Initialize VMU display
d3tui_vmu_t *vmu = d3tui_vmu_init(port, vmu_slot);
// Draw to VMU
d3tui_vmu_clear(vmu, COLOR_BLACK);
d3tui_vmu_draw_text(vmu, 0, 0, "Hello");
// Update display
d3tui_vmu_sync(vmu);
// Cleanup
d3tui_vmu_destroy(vmu);