Question: will it compile on Mono? I think this should not be much of a problem, or should it?

I haven't tested building on Mono (as noted, I just got TestKernel building), but I believe it should with few problems. I believe the only thing you'll have to do is install nasm (in addition to the normal deps) and change lines 51 and 52 of Renraku.build to:

  <exec program="mono" commandline="Obj/Compiler.exe Obj/TestKernel.dll" output="Obj/kernel.asm" />
  <exec program="nasm" commandline="-o Obj/kernel.bin Obj/kernel.asm" />

Let me know if you run into any issues.

Edit: Note, you need to have Boo 0.9.0 or better to build the code.

Previous discussion: http://news.ycombinator.com/item?id=686802

This is an OS?

My OS project (http://www.loper-os.org/) has been accused of having a 10:1 hot air to code ratio bytewise, but at least I have written a bootloader which initializes hardware and prints "Hello World." This man currently has "prototypes in a mix of C# and Nemerle." Does he intend to recreate Microsoft's complete runtime environment on the bare metal? Are we to laugh or cry?

Err, I think you're looking at the "Background" section of my previous post. In the one linked in this post, I give a bootable kernel in Boo which implements basic functionality.

Where is the bootloader? Where is any code which runs outside of Windows? I could not find it in your tree.

The bootloader is GRUB. I haven't tested building TestKernel on anything but MS.NET, but you can give it a shot. Follow the instructions at the GitHub repo ( http://github.com/daeken/RenrakuOS/tree/master , also linked in my post), and if you're running on a non-Windows platform, you'll have to install nasm and point the build script to that instead of the exe that ships.