Starting baby on solids

My son is currently 4.5 months old and I was planning on waiting until 6 months to start food. However, over the past week he has been showing a high interest when we are eating! To the point that he gets upset at not being able to have some. He even grabbed a tortilla chip off my plate, brought it to his mouth, and licked it. He has met all other milestones for being ready from what I have read, such as holding head well, sitting supported (starting to sit unsupported), opening mouth when seeing food, etc. Just looking for other moms who have started food before 6 months and how they started. I know what is recommended and am going to do what is best for my son so please no negative feedback. TIA