I do have a secret for killing all the weeds. I make a smaller pile of stuff I absolutely want to be perfect... compile the materials the way I feel would be perfect (everyone has their own style for that so I am not going to get specific there).. then I cover that with landscaping fabric.. then I cover that with the rest of the compost that I do not care has weeds or what ever in it. The center that is under the landscaping fabric will have ever weed seed killed from the heat and I can use that where ever I need a perfect compost. However I do not have that need for perfect compost and I do not sell compost so I just make one giant pile and the results will be good enough for my purposes. I just enjoy turning organic material in a great growing medium. Rarely do I even need to use fertilizers, when I do its because of Calcium Deficiency. Due to the nature of my nursery adding lime to my composts will cause problems with my evergreens so I add Calcium in a liquid form to my garden when plant leaves indicate they need it.Absolutely! I used to fuss about layering green grass clippings in and I’d run over leaves with the mower and stir them in, but really it’ll rot fine. Even commercial compost can have issues. One place was known for giving people horse tail that they never had before. So even they don’t get hot enough to kill everything.