Changes to snapshot /usr and /var subvolumes instead of root, regex-lite adoption, and initial documentation

Cargo.toml

@@ -1,13 +1,13 @@
 [package]
 name = "hive-up"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2024"
 
 [dependencies]
 clap = { version = "4.6", features = ["derive"] }
 nix = { version = "0", features = ["user"] }
 postcard = { version = "1.1", features = ["use-std"] }
-regex = "1"
+regex-lite = "0.1"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1.0"
 signal-hook = "0.4"
@@ -19,7 +19,7 @@ lto = true
 debug = false
 incremental = false
 codegen-units = 1
-opt-level = 2
+opt-level = "s"
 strip = true
 
 [registry]