Here is simple code to get that user has logged in to edit/dashboard from block.
How to use tabbed panels in block forms in concrete5 5.7.
Package install note very useful to give installations option into your package, so user can install package as they needed.
How to generate Global Areas for every locale
File permissions are easy to spot and easy to fix. When installing or moving C5, sometimes you get permission errors.
Custom CSS to make all Youtube embeds responsive (including in edit mode). I chose to make it override every single YouTube embed, because I can't remember the last time I embedded a video and didn't want it to be responsive.
How to enable the font size, font family and font color selector plugins in redactor and also a fix to the inlineRemoveStyle that doesn't work in Concrete5's redactor .js
Redactor has some functionality which is only available using keyboard shortcuts by default. This how-to shows how to add buttons for undo, redo, superscript and subscript to the toolbar;