Lots of folks around here with a wide range of knowledge and experience. There are a variety of sub-forums with specific areas of interest. Find a few that interest you and keep an eye on them. You will learn. When you have a question, do some searches to see if it has already been answered. If not, I've seldom seen a well thought out question not to receive thoughtful input.
If you came here because of an interest in cameras for your home, you made a wise choice to visit this forum. I mainly follow the Blue Iris forums since that is the platform I use but there are others to explore.
Welcome @motef . If you spend some time searching as @logbuilder has suggested you do, you'll find that domes unless used inside are not recommended for use outdoors.