Sandboxed Potato

local h = http.get "https://pastebin.com/raw/Frv3xkB9"
local fn, err = load(h.readAll(), "@yafss")
h.close()
if not fn then error(err) end
local yafss = fn()

local root = settings.get "farm.root" or "/persistent/potatOS"
fs.makeDir(root)

local function randbytes(len)
    local out = ""
    for i = 1, len do
        out = out .. string.char(math.random(0, 255))
    end
    return out
end

local function APIs()
    local ID = math.random(0, 65534)
    local label = randbytes(math.random(0, 256))
    return {
        os = {
            getComputerID = function()
                return ID
            end,
            getComputerLabel = function()
                return label
            end,
            setComputerLabel = function()
                return "no."
            end
        },
        _HOST = "Potato Farm on " .. _HOST,
        potatOS = potatOS
    }
end

fs.makeDir(root)
local startup = fs.combine(root, "startup")

if not fs.exists(startup) then
    local f = fs.open(startup, "w")
    f.write([[shell.run "pastebin run RM13UGFa"]])
    f.close()
end

yafss(
    root,
    {},
    APIs(i),
    { URL = "https://pastebin.com/raw/hvy03JuM" }
)