startup.lua

local function main()
    --local blockUp, dataUp = turtle.inspectUp()

    --if blockUp and dataUp.name == "botania:livingwood" then
        --turtle.digUp()
        --turtle.suckUp()
    --elseif not blockUp then
        --turtle.placeUp()
    --end

    local blockDown, dataDown = turtle.inspectDown()

    if blockDown and dataDown.name == "botania:livingwood" then
        turtle.digDown()
        turtle.suckDown()
    elseif not blockDown then
        turtle.placeDown()
    end
end

while true do
    main()
    sleep(1)
end