finding something to do a deep dive.

here's what I know:

• C language
• How syscall works in linux
• basic networking concepts (not too advanced stuff like network namespaces etc)
• virtualization ( know basic concepts of docker etc, want to make a docker like thing using just ns command )
• Bash scripting
• basics of devices in Linux

it's all pretty basic every linux user might know already. what are the areas I should give a deep dive in. what other exciting things are there in linux?

I am also open to reading some research papers since those are interesting too.

a good paper I found: https://arxiv.org/abs/2607.24888