Caveat I have not hosted a lemmy instance but check this out

https://join-lemmy.org/docs/administration/install_docker.html

there is also other methods listed, but docker compose tends to be pretty simple for hosting, hope it helps.

Every news source has bias, Al Jazeera has over 3000 staff, over 400 journalists and access that comes along with being that massive of a news agency. Obviously they are biased towards reporting that favors the government of Qatar who funds them. Particularly if a lot of stuff is happening in the middle east and Al Jazeera has more journalists in those countries with better connections to those countries they are gonna be first to cover a lot of things in the region. They are also much less likely to use passive voice and other qualification when talking about things like Palestine in their reporting. A lot of people don’t want to read “50 Palestinians are shot” instead of “IDF battalion kills 50 Palestinians”.