I'm trying to do more to get code wrapped up into packages and put into the Episerver Nuget feed.
The first of these I've managed to get posted is a collection of validation attributes that can be applied to different types of content properties. Some of them affect strings, some affect media, and some affect lists/arrays, including ContentAreas.
I won't go into full detail for each here. For that, see the ReadMe on Github. What I will do is pick one or two and go through why I thought these were important to share and use.