Although there is internet in Rojava, often it is very expensive and limited to local regions. The situation is a bunch of private/local companies using antennas to distribute internet to a small area from Turkey.
To solve the internet issue, namely access and cost (speed not being the main goal), Rojava needs a global network and it's inevitable this will exist. Usually in most countries this is done by an outside company heavily investing in building an infrastructure that is highly centralized.
However an alternative model successfully pioneered by groups such as Guifi.Net involves creating an open network infrastructure that incentivises groups to share their private network, creating a self-bootstrapping network. Also Fafbi is especially designed for situations of little access to technology, power cuts, etc. like Afghanistan or Kenya.
This means creating a website for managing the network, then creating the first links to connect up the major cities and important centers of activities within them. Companies can then use this network to sell internet access and compete on a wider scale. Instead of running their own proprietary expensive network confined to a small area, instead they tap into a bigger open network and also end up contributing their infrastructure to build this network.
Also important is education and training of people, and establishing services such as an archive for movies, films and books. The schools can have free internet access to Wikipedia blocking all video and music so that it doesn't need much resources to run.