diff --git a/Dockerfile b/Dockerfile
index f2a6be12..860ad7ea 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1-buster as builder
+FROM rust:1-bullseye as builder
 
 WORKDIR /usr/src/web3-proxy
 COPY . .
@@ -6,7 +6,10 @@ RUN --mount=type=cache,target=/usr/local/cargo/registry \
     --mount=type=cache,target=/usr/src/web3-proxy/target \
     cargo install --locked --path ./web3-proxy
 
-FROM debian:buster-slim
+FROM debian:bullseye-slim
 
 COPY --from=builder /usr/local/cargo/bin/web3-proxy /usr/local/bin/web3-proxy
 ENTRYPOINT ["web3-proxy"]
+
+# TODO: lower log level when done with prototyping
+ENV RUST_LOG "web3_proxy=debug"
diff --git a/config/example.toml b/config/example.toml
index 9dd84e92..0792c927 100644
--- a/config/example.toml
+++ b/config/example.toml
@@ -5,13 +5,18 @@ chain_id = 1
 
 [balanced_rpc_tiers.0]
 
+    [balanced_rpc_tiers.0.erigon_archive]
+    url = "ws://127.0.0.1:8549"
+    # TODO: double check soft_limit on erigon
+    soft_limit = 100_000
+
     [balanced_rpc_tiers.0.geth]
     url = "ws://127.0.0.1:8546"
     soft_limit = 200_000
 
-    #[balanced_rpc_tiers.0.ankr]
-    #url = "https://rpc.ankr.com/eth"
-    #soft_limit = 3_000
+    [balanced_rpc_tiers.0.ankr]
+    url = "https://rpc.ankr.com/eth"
+    soft_limit = 3_000
 
 [private_rpcs]
 
diff --git a/web3-proxy/src/connection.rs b/web3-proxy/src/connection.rs
index 4c1e7460..845c030f 100644
--- a/web3-proxy/src/connection.rs
+++ b/web3-proxy/src/connection.rs
@@ -302,7 +302,7 @@ pub struct ActiveRequestHandle(Arc<Web3Connection>);
 
 impl ActiveRequestHandle {
     fn new(connection: Arc<Web3Connection>) -> Self {
-        // TODO: attach the incoming id to this? will be helpful for logging
+        // TODO: attach a unique id to this
         // TODO: what ordering?!
         connection
             .active_requests