First commit. Not even working prototype yet.

init.lua

@@ -0,0 +1,46 @@
+local gpu = component.proxy(component.list("gpu")())
+local resx, resy = gpu.getResolution()
+
+local function loadfile(file)
+  checkArg(1, file, "string")
+  local handle = component.invoke(computer.getBootAddress(), "open", file, "r")
+  local data = ""
+  repeat
+    local tmpdata = component.invoke(computer.getBootAddress(), "read", handle, math.huge or math.maxinteger)
+    data = data .. (tmpdata or "")
+  until not tmpdata
+  component.invoke(computer.getBootAddress(), "close", handle)
+  return(assert(load(data, "=" .. file)))
+end
+
+local function handleError(errorMessage)
+  return(errorMessage.."\n \n"..debug.traceback())
+end
+
+function loadthething()
+  loadfile("/halyde/core/boot.lua")(loadfile)
+end
+
+while true do
+  gpu.setBackground(0x000000)
+  gpu.fill(1, 1, resx, resy, " ")
+  local result, reason = xpcall(loadthething, handleError)
+  if not result then
+    gpu.setBackground(0x000000)
+    gpu.fill(1, 1, resx, resy, " ")
+    gpu.setBackground(0x800000)
+    gpu.setForeground(0xFFFFFF)
+    gpu.set(2,2,"A critical error has occurred.")
+    local i = 4
+    reason = reason:gsub("\t", "  ")
+    for line in string.gmatch((reason ~= nil and tostring(reason)) or "unknown error", "([^\n]*)\n?") do
+      gpu.set(2,i,line)
+      i = i + 1
+    end
+    gpu.set(2,i+1, "Press any key to restart.")
+    local evname = ""
+    repeat
+      evname = computer.pullSignal()
+    until evname == "key_down"
+  end
+end