diff --git a/.taplo.toml b/.taplo.toml
new file mode 100644
index 0000000..97b7458
--- /dev/null
+++ b/.taplo.toml
@@ -0,0 +1,32 @@
+[formatting]
+indent_string = "\t"
+reorder_keys = false
+reorder_arrays = false
+reorder_inline_tables = true
+
+[[rule]]
+include = ["**/Cargo.toml"]
+
+[rule.schema]
+path = "https://json.schemastore.org/cargo.json"
+enabled = true
+
+# schema definition for .cargo/config.toml is not yet available
+# see https://github.com/rust-lang/cargo/issues/12883
+
+[[rule]]
+include = ["**/Cargo.toml"]
+keys = [
+	"build-dependencies",
+	"dependencies",
+	"dev-dependencies",
+	"target.*.build-dependencies",
+	"target.*.dependencies",
+	"target.*.dev-dependencies",
+	"workspace.dependencies",
+	"workspace.lints.clippy",
+]
+
+[rule.formatting]
+reorder_keys = true
+reorder_arrays = true
diff --git a/Cargo.toml b/Cargo.toml
index 71e3710..bd0c352 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,11 +8,12 @@ version = "1.9.9-pre-9"
 
 [workspace.lints.clippy]
 pedantic = "warn"
+
+cast-possible-truncation = { level = "allow", priority = 1 }
+cast-precision-loss = { level = "allow", priority = 1 }
+default-trait-access = { level = "allow", priority = 1 }
+missing-errors-doc = { level = "allow", priority = 1 }
+missing-panics-doc = { level = "allow", priority = 1 }
 module-name-repetitions = { level = "allow", priority = 1 }
 struct-excessive-bools = { level = "allow", priority = 1 }
 too-many-lines = { level = "allow", priority = 1 }
-default-trait-access = { level = "allow", priority = 1 }
-cast-precision-loss = { level = "allow", priority = 1 }
-cast-possible-truncation = { level = "allow", priority = 1 }
-missing-errors-doc = { level = "allow", priority = 1 }
-missing-panics-doc = { level = "allow", priority = 1 }
diff --git a/charge-controller-supervisor/Cargo.toml b/charge-controller-supervisor/Cargo.toml
index f56b4a1..c2a3e21 100644
--- a/charge-controller-supervisor/Cargo.toml
+++ b/charge-controller-supervisor/Cargo.toml
@@ -12,20 +12,20 @@ systemd-units = { enable = false }
 depends = ""
 
 [dependencies]
+chrono = "0.4.39"
 clap = { version = "4.5.23", features = ["derive"] }
+env_logger = "0.11.6"
+eyre = "0.6.12"
+futures = "0.3.31"
+lazy_static = "1.5.0"
+log = "0.4.22"
+prometheus = "0.13.4"
+rocket = { version = "0.5.1", features = ["json"] }
 serde = { version = "1.0.216", features = ["derive"] }
 serde_json = "1.0.134"
 tokio = { version = "1.42.0", features = ["full"] }
-rocket = { version = "0.5.1", features = ["json"] }
-chrono = "0.4.39"
-prometheus = "0.13.4"
-env_logger = "0.11.6"
-log = "0.4.22"
-futures = "0.3.31"
 tokio-modbus = "0.16.1"
 tokio-serial = "5.4.4"
-lazy_static = "1.5.0"
-eyre = "0.6.12"
 
 [lints]
 workspace = true
diff --git a/charge-controller-supervisor/src/config.rs b/charge-controller-supervisor/src/config.rs
index ad202bd..1a4e0b9 100644
--- a/charge-controller-supervisor/src/config.rs
+++ b/charge-controller-supervisor/src/config.rs
@@ -1,5 +1,18 @@
 use serde::{Deserialize, Serialize};
 
+static CONFIG_PATH: std::sync::OnceLock<std::path::PathBuf> = std::sync::OnceLock::new();
+pub(super) static CONFIG: std::sync::OnceLock<tokio::sync::RwLock<Config>> =
+    std::sync::OnceLock::new();
+
+pub async fn access_config<'a>() -> tokio::sync::RwLockReadGuard<'a, Config> {
+    CONFIG.get().unwrap().read().await
+}
+
+pub(super) struct ConfigWatcher {
+    _debouncer: notify_debouncer_mini::Debouncer<notify_debouncer_mini::notify::RecommendedWatcher>,
+    _handle: tokio::task::JoinHandle<()>,
+}
+
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Default)]
 #[serde(default)]
 pub struct Config {
diff --git a/tesla-charge-controller/Cargo.toml b/tesla-charge-controller/Cargo.toml
index 86ad467..c54c093 100644
--- a/tesla-charge-controller/Cargo.toml
+++ b/tesla-charge-controller/Cargo.toml
@@ -12,30 +12,30 @@ systemd-units = { enable = false }
 depends = "charge-controller-supervisor"
 
 [dependencies]
+chrono = "0.4.39"
 clap = { version = "4.5.23", features = ["derive"] }
+env_logger = "0.11.6"
+eyre = "0.6.12"
+if_chain = "1.0.2"
+include_dir = "0.7.4"
+lazy_static = "1.5.0"
+log = "0.4.22"
+notify-debouncer-mini = { version = "0.5.0", default-features = false }
+prometheus = "0.13.4"
+rand = "0.8.5"
+reqwest = { version = "0.12.9", default-features = false, features = [
+	"json",
+	"rustls-tls",
+] }
+rocket = { version = "0.5.1", features = ["json"] }
 ron = "0.8.1"
 serde = { version = "1.0.216", features = ["derive"] }
 serde_json = "1.0.134"
-tokio = { version = "1.42.0", features = ["full"] }
-thiserror = "2.0.9"
-rocket = { version = "0.5.1", features = ["json"] }
-include_dir = "0.7.4"
-chrono = "0.4.39"
-prometheus = "0.13.4"
-env_logger = "0.11.6"
-log = "0.4.22"
 serialport = "4.6.1"
+thiserror = "2.0.9"
+tokio = { version = "1.42.0", features = ["full"] }
 tokio-modbus = "0.16.1"
 tokio-serial = "5.4.4"
-if_chain = "1.0.2"
-notify-debouncer-mini = { version = "0.5.0", default-features = false }
-lazy_static = "1.5.0"
-rand = "0.8.5"
-reqwest = { version = "0.12.9", default-features = false, features = [
-	"rustls-tls",
-	"json",
-] }
-eyre = "0.6.12"
 
 [lints]
 workspace = true