Update Cargo.toml

Cargo.toml

@@ -1,3 +1,26 @@
 [workspace]
 resolver = "2"
 members = [ "engine/prefabs","game/main"]
+
+# Enable a small amount of optimization in debug mode
+[profile.dev]
+opt-level = 1
+
+# Enable high optimizations for dependencies (incl. Bevy), but not for our code:
+[profile.dev.package."*"]
+opt-level = 3
+
+[profile.release]
+codegen-units = 1
+lto = "thin"
+
+
+# Optimize for build time in CI.
+[profile.ci]
+inherits = "dev"
+opt-level = 0
+debug = "line-tables-only"
+codegen-units = 4
+
+[profile.ci.package."*"]
+opt-level = 0