Plot.plot({
height: 600,
width: 600,
inset: 4,
marks: [
Plot.ruleY(expandY, { stroke: "orange" }),
Plot.ruleX(expandX, { stroke: "orange" }),
Plot.text(space.flat(), {
fontSize: 6,
x: (d, i) => i % space[0].length,
y: (d, i) => (i / space[0].length) | 0
})
]
})