[Immortalin]

If you are writing an OS, I highly recommend the Pure64 bootloader from Return Infinity. It's much more straightforward to use compared to GRUB which imposes a lot of conventions on how you structure things.

httpss://github.com/ReturnInfinity/Pure64

[majewsky]

Working link: https://github.com/ReturnInfinity/Pure64

[alias_neo]

Do you know of any tutorials (like OP) that are based off of this?