Install Anytype first. Get it at: https://anytype.io/
On Desktop you can set a custom path for you data.
You can only do so when not logged in.
Log out under "Anytype"-"Settings"-"Vault" or with the gear icon (bottom left) of your spaces sidebar. 
On the "I have a Key/New Vault" screen the gear icon (top right) let's you change the vault data location.

How to install the widget in Anytype:

Select the Space you want to import the widget into
Click "File" -> "Import to Space"
Choose "Any-Block"
Navigate to where the "Development Overview.zip" is
Select it and click open or double click the .zip file
The import process should start
A pop up will let you add stuff to favourites
I recommend against adding so don't check any checkboxes and hit the button 
or click off of the popup and it will go away
once imported we need to add the Development Overview as a widget
Click on "All Objects" and on the "Pages" tab 
Find the entry "Development Overview" (eye icon) and right click it
Choose "Create Widget"
Back out of "All Objects" by clicking on the "<" and the widget should be on the left sidebar
You can collapse/expand it with the toggle on the title
If you can't see the option to toggle collapse/expand it means your widget is in compact view (aka Link)
Right click the widget and under "Appearance - Link" 
Choose "Tree" instead
Done
If that tree view ever gets weird, switching between link and tree fixes it.
Have fun exploring the widget