I live in an apt building. I compost because I recently got into gardening. I started with sealed jars under my sink starting small because I wasn’t sure how much compost I need for the plants I’d be growing in pots. I also have a small tub with a lid outside in the back yard area that contains soil leaves sticks and rotting vegetables and fruit. it’s in the far corner under some weeds and I keep it cracked open so flies and other insects can help compost it on top of adding extra nitrates.