Problem:
Client wants to use the Bootstrap grid output format for a View but with more control over the number of columns.

Solution:
The Bootstrap grid requires content to be placed in rows which creates limitations on the number of columns that can be displayed (for different screen sizes).

A better solution is to not use the Bootstrap grid at all and to use a simple flexbox CSS solution instead.

Relevant Documentation:
https://css-tricks.com/snippets/css/a-guide-to-flexbox/

Problem:
Client is unable to register their site using the key generated at toolset.com

Solution:
In this particular case the client is using Cloudflare and it is blocking access to our servers at https://api.wp-types.com/ or https://api.toolset.com/

The Cloudflare settings need to whitelist these URLs.