Initial commit

notes/tentative_dev_timeline

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+X Get a kernel that can draw to screen
+  Higher half?
+  Paging
+X Get GDT setup
+- Enter protected mode
+    *THIS IS A BOOTLOADER THING. GRUB DOES THIS FOR YOU.*
+X Get interrupts working
+  Get the PIT working, especially IRQ0
+      HPET can come later
+  Multitasking/Scheduler (with niceness)
+  Get memory mapping up
+  Get a memory manager going
+  Setup a heap
+  Multithreading support
+  Hardware abstraction layer
+  Get IRQ1 (keyboard) working
+  Get a basic debug/rescue shell working
+  Get IRQ8 and IRQ14 working
+  Get a hard drive driver working (with UNIX/MINIX-esque file system driver)
+  Get the basic init system set up
+    Add userspace stuff to GDT, including TSS
+  Get the C lib. program initialization set up
+  Get a program loader working
+  Get necessary C lib. stuff for vsh working
+  Get vsh loading
+  Get other interrupt handlers set up
+  Add utils into build tooling alongside kernel and libc
+  Get the TTY properly set up
+  Get curses going
+  Get core utilities (and requirements) finished
+  Get vsh finished (fully sh-compliant), including built-ins
+  Get rc-based init going
+  Get multiuser support (/etc/passwd, etc.)
+  Add networking support
+  Finish the C library
+  Add amd64 and EFI support
+  Get misc. and XSI utilities working
+  Get complex utilities working
+  Get the C toolchain working
+  Get multiuser utils finished
+  Get dev utils working
+  Get SCCS working