Software:
The apps you use and(maybe) mention what purpose you use it for and in what way use it.
Any scripts(or some OS settings) that you use a lot and in a generic way to make life on your computer(and even outside of it) easier.
Or anything else you feel like sharing, sth that helps others.
Hardware:
What hardware you use other than the laptop, CPU etc. Something like external hard disk or maybe speakers. Components like a time capsule etc.