Content Touchup: "What are Extensions"
I was a little shocked with the above-the-fold content of the page: https://extensions.typo3.org/extension-repository/what-are-extensions/
Although the information provided here is historically correct, this is definetely NOT the stuff we want our visitor to see at first glance!
The "Above the fold" Content is FAR too valuable for this. I cannot emphasize this enough, show the good stuff first - if someone new just sees this screen, he won't scroll down anymore and might be annoyed because this implicates TYPO3 still has a messed up internal architecture!
This should be more purposeful:
The text touchup is as follows:
What are extensions?
Extensions are the cornerstone in the internal architecture of TYPO3.
The illustration below shows how TYPO3 fits into a structure with PHP, MySQL, Apache, the website and backend administration around it.
This structure is a vital part of TYPO3 and will surely provide future growth for these reasons:
The Extension Manager
The Extension Manager is the control center to structure the otherwise big gray "blob" of everything and align into 1) one core and 2) many extensions.
It looks like this: