I got some spare time, and want to start a new project! Any suggestions?

Thank you!

Maybe learn a new language?

Library of heavily optimized linear algebra routines
It's a very illuminating exercise, trust me

@Jilano oh I really want to. But not sure we're it will fit for me, can you give me suggestions, I'm amobile dev but I do web services and basic websites, I think it might fit as a web service but how better is it that Kotlin, C#, Nodejs and Java ? I already do C#

Create artificial life. That's a resume builder, there

@Jilano thanks man, I'm gonna go ahead and try it out for a REST service let's see what happens