The standard Raspberry Pi cases sold in the marketplace do not include space for accessories and add-ons. A DIY case built using a 3D printing service offers a good solution, but some planning is in order.
Some model train enthusiasts like to run their trains like a real railroad with a dispatcher controlling movements, issuing train orders, and making sure the train stays on schedule. But, time runs differently for these trains, thanks to fast clocks.
The virtual private network (VPN) from Weaved offers an elegant and secure solution for creating external access to services running on a Raspberry Pi inside a home network. Besides offering great functionality, Weaved is available with a free account.