If you want to be a better sysadmin, try to be a dev. If you want to be a better dev, try to be a sysadmin. ... Just understand that you're probably better off focussing on one area and keeping the other as a hobby. It's extremely hard to master both. Make sure you master one and play around with the other.

https://ma.ttias.be/the-worst-possible-devops-advice/