The theory is simple, practise is difficult. Aim for the absolute most bare bones side project you can, and throw a few weekends (or other time to spare) at it,

The theory is simple, practise is difficult. Aim for the absolute most bare bones side project you can, and throw a few weekends (or other time to spare) at it, and get it going. From there, improve when you can. Given time, your dream project emerges.