Config structs in their final forms

Author: cormacrelf

Cargo.lock

@@ -43,6 +43,7 @@ toml = "0.8.8"
 nohash-hasher.workspace = true
 always-assert = "0.2.0"
 walkdir = "2.3.2"
+indexmap = { version = "2.0.0", features = ["serde"] }
 
 cfg.workspace = true
 flycheck.workspace = true