diff --git a/Cargo.lock b/Cargo.lock
index e0f332ad..313c58a6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -546,6 +546,12 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e4c78c047431fee22c1a7bb92e00ad095a02a983affe4d8a72e2a2c62c1b94f3"
 
+[[package]]
+name = "convert_case"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
+
 [[package]]
 name = "convert_case"
 version = "0.5.0"
@@ -699,6 +705,19 @@ dependencies = [
  "const-oid",
 ]
 
+[[package]]
+name = "derive_more"
+version = "0.99.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
+dependencies = [
+ "convert_case 0.4.0",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn",
+]
+
 [[package]]
 name = "dialoguer"
 version = "0.8.0"
@@ -987,7 +1006,7 @@ dependencies = [
  "arrayvec",
  "bytes",
  "cargo_metadata",
- "convert_case",
+ "convert_case 0.5.0",
  "elliptic-curve",
  "ethabi",
  "generic-array 0.14.5",
@@ -3734,6 +3753,7 @@ dependencies = [
  "argh",
  "atomic-counter",
  "dashmap",
+ "derive_more",
  "ethers",
  "futures",
  "governor",
diff --git a/Cargo.toml b/Cargo.toml
index dab05462..2411adc1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ argh = "0.1.7"
 anyhow = "1.0.57"
 atomic-counter = "1.0.1"
 dashmap = "5.2.0"
+derive_more = "0.99"
 ethers = { git = "https://github.com/gakonst/ethers-rs", features = ["rustls", "ws"] }
 futures = { version = "0.3.21", features = ["thread-pool"] }
 governor = { version = "0.4.2", features = ["dashmap", "std"] }
diff --git a/src/main.rs b/src/main.rs
index 98d2cf85..4bdbad58 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,6 @@
 // TODO: don't use RwLock<HashMap>. i think we need a concurrent hashmap or we will hit all sorts of deadlocks
 
+use derive_more::From;
 use ethers::prelude::{Block, TxHash};
 use ethers::providers::Middleware;
 use futures::future;
@@ -25,27 +26,15 @@ static APP_USER_AGENT: &str = concat!(
     env!("CARGO_PKG_VERSION"),
 );
 
-// TODO: i'm not sure we need this. i think we can use dyn
+// TODO: i tried to use Box<dyn Provider>, but hit https://github.com/gakonst/ethers-rs/issues/592
+#[derive(From)]
 enum EthersProvider {
     Http(ethers::providers::Provider<ethers::providers::Http>),
     Ws(ethers::providers::Provider<ethers::providers::Ws>),
 }
 
-// TODO: seems like this should be derivable
-impl From<ethers::providers::Provider<ethers::providers::Http>> for EthersProvider {
-    fn from(item: ethers::providers::Provider<ethers::providers::Http>) -> Self {
-        EthersProvider::Http(item)
-    }
-}
-
-// TODO: seems like this should be derivable
-impl From<ethers::providers::Provider<ethers::providers::Ws>> for EthersProvider {
-    fn from(item: ethers::providers::Provider<ethers::providers::Ws>) -> Self {
-        EthersProvider::Ws(item)
-    }
-}
-
 impl EthersProvider {
+    /// Send a web3 request
     pub async fn request(
         &self,
         method: &str,
@@ -57,6 +46,7 @@ impl EthersProvider {
         }
     }
 
+    /// Subscribe to new block heads
     pub async fn new_heads(&self, url: String, blocks: Arc<BlockMap>) -> anyhow::Result<()> {
         // TODO: automatically reconnect
         match &self {