Aquila OS 
UNIX-like Operating System, including the kernel and system tools.
Intended to be fully POSIX compliant. Oh, and it compiles with -O3.
Build Instructions
Follow the instructions in this wiki page.
CPU-based Features:
Supported Archetictures:
- x86
- x86-64
- Multitasking
- Multithreading
- SMP
Kernel Features:
- Monolitihic kernel
- Virtual Filesystem
- Supports loadable modules
Supported Filesystems:
- initramfs (CPIO Archive filesystem, used for Ramdisk, read only)
- tmpfs (Generic temporary filesystem, read/write)
- devfs (Virtual filesystem, used for device handlers, statically populated, read/write)
- devpts (Virtual filesystem, used for psudo-terminals, dynamically populated, read/write)
- procfs (Processes information filesystem, read only)
- ext2 (Basic Extended 2 filesystem, read/write)
- ext3
- ext4
- sysfs
Supported Devices:
- i8042 (PS/2 Controller)
- ramdev (Memory mapped device, generic handler)
- ps2kbd (PS/2 Keyboard Controller)
- console (IBM TGA console)
- ata (ATA Harddisk handler, PIO mode)
- fbdev (Generic framebuffer device handler)
- 8250 (UART)
Supported video interfaces:
- VESA 3.0
System Feautres:
- newlib-3.0.0 (latest)
- aqbox (Aquila Box, like busybox)
- fbterm (Framebuffer based terminal)
- tcc (Tiny C Compiler)
- lua (Lua programming language)
- kilo (Kilo text editor)