I wrote a science fiction short story about the physics and chemistry of the first living beings: The Clay People. It is a kindle book at amazon dot com. It is based on the non-fiction ideas of A. G. Cairns-Smith. The technical content includes following ideas:
A long time ago, entropy had not made a mess of things. There were pure elements and molecules without mud.
Clay can reproduce its crystals and its layered structures.
Radioactivity caused carbon and other elements to run experiments in survival.
Random configurations caused channeling and control structures to appear in the clay.
Water flow brought nutrients into the clay to feed its growth and reproduction.
Evolution caused clay scientists to arise.
The clay scientists saw that their genes were fragile, so they created something like DNA to allow better survival rates. But the DNA based life ate the clay scientists. That removed evidence of the origins.
More details are in the book by A.G. Cairns-Smith - Seven Clues to the Origin of Life. In that book, that author discusses the complexity of modern cells and how removing any one feature, like protein production, would cause the end of life. He says that is similar to building a stone arch. If any one stone is removed, the arch will collapse. Romans built an arch using a scaffolding. Then they removed the scaffolding and the arch remained with no clue of how it can be built with stones being added sequentially. A naiive person may look at an arch and fail to see how a new arch can be built with all pieces in place. It looks like it will fall if any one component is missing. Life is similar. We cannot see the scaffolding that was removed.