Focus on the Wind

From Amazon production description: "Across the galaxy, in a place where demons and Hunters are little more than myth, is a star system on the verge of war. Its name: Teegarden c. Ceriat Parker is an Earth Terraforming League technician. He turns barren and lifeless planets into habitable worlds as self-imposed penance for his time as a bomber pilot for the Galactic Protectorate military. When Ceriat comes out of faster than light travel, he expects Teegarden c to be uninhabited and ready for terraforming. Instead, he drops into a warzone. Then, with his ship disabled and his life support failing, he watches as a fusion bomb breaks through Teegarden c's atmosphere... and he realizes if he's really going to make amends, he can't let history repeat itself."