_G.DEFAC = 1
do
if component.list("gpu")() and component.list("screen")() and component.list("keyboard")() and tty and kbd then
 local ts = {}
 if fs.exists("/boot/sys/session.dat") then
  local f = io.open("/boot/sys/session.dat","rb")
  if f then
   S = f:read("*a")
   f:close()
   log(S)
   for line in S:gmatch("[^\n]+") do
    log(line)
    local ga, sa, ka = line:match("(.+)\t(.+)\t(.+)")
    ts[#ts+1] = {os.gensalt(16),ga,sa,ka}
    log()
   end
  end
 else
  ts[1] = {os.gensalt(16),component.list("gpu")(),component.list("screen")(),component.list("keyboard")()} -- session name, GPU address, screen address, keyboard address
 end
 for k,v in ipairs(ts) do
  log(v[1],v[2],v[3],v[4])
  tty(v[2],v[3],v[1])
  kbd(v[4],v[1])
  luash(v[1])
 end
elseif nshd then
 nshd(23)
end
end
computer.beep()