PRE-ALPHA 3.0.0 - Rewrote the kernel to use a more modular design, changed some terms, added process sandboxing for security.

COMING IN THE FULL RELEASE:
- A user system
- A functional IPC (Inter-Process Communication) system

THINGS CAN AND WILL CHANGE FROM NOW UNTIL THE FINAL RELEASE.

init.lua

@@ -1,5 +1,24 @@
 local gpu = component.proxy(component.list("gpu")())
-local resx, resy = gpu.getResolution()
+local resX, resY = gpu.getResolution()
+
+-- Architecture check
+local foundArchitecture = false
+for _, arch in pairs(computer.getArchitectures()) do
+  if arch == "Lua 5.3" then
+    foundArchitecture = true
+    break
+  end
+end
+
+if foundArchitecture then
+  computer.setArchitecture("Lua 5.3")
+else
+  gpu.set(1, 1, "Required architecture (Lua 5.3) is not supported.")
+  gpu.set(1, 2, "Halting.")
+  while true do
+    computer.pullSignal()
+  end
+end
 
 local function loadfile(file)
   checkArg(1, file, "string")
@@ -17,36 +36,36 @@ local function handleError(errorMessage)
   return(errorMessage.."\n \n"..debug.traceback())
 end
 
-function loadthething()
-  loadfile("/halyde/core/boot.lua")(loadfile)
+function loadBoot()
+  loadfile("/halyde/kernel/boot.lua")(loadfile)
 end
 
 gpu.setBackground(0x000000)
-gpu.fill(1, 1, resx, resy, " ")
-local result, reason = xpcall(loadthething, handleError)
+gpu.fill(1, 1, resX, resY, " ")
+
+-- Copying low-level functions in case of post-preload failure
+local pullSignal = computer.pullSignal
+local shutdown = computer.shutdown
+
+local result, reason = xpcall(loadBoot, handleError)
 if not result then
-  if import then
-    local computer = import("computer")
-  end
   gpu.setBackground(0x000000)
-  gpu.fill(1, 1, resx, resy, " ")
+  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
+  reason = tostring(reason):gsub("\t", "  ")
+  for line in string.gmatch(reason or "unknown error", "([^\n]*)\n?") do
     gpu.set(2,i,line)
     i = i + 1
   end
-  if computer~=nil then
-    gpu.set(2,i+1, "Press any key to restart.")
-    local evname
-    repeat
-      evname = computer.pullSignal()
-    until evname == "key_down"
-    computer.shutdown(true)
-  end
+  gpu.set(2,i+1, "Press any key to restart.")
+  local evname
+  repeat
+    evname = pullSignal()
+  until evname == "key_down"
+  shutdown(true)
   while true do
     coroutine.yield()
   end