diff --git a/client/src/controllers/TxStream.js b/client/src/controllers/TxStream.js
index 2fab946..fcc18cb 100644
--- a/client/src/controllers/TxStream.js
+++ b/client/src/controllers/TxStream.js
@@ -121,14 +121,19 @@ class TxStream {
   }
 
   async fetchBlock (id, calledOnLoad) {
+    if (!id) return
     if (id !== lastBlockSeen) {
-      console.log('downloading block', id)
-      const response = await fetch(`${this.apiUri}/block/${id}`, {
-        method: 'GET'
-      })
-      let blockData = await response.json()
-      console.log('downloaded block', id)
-      window.dispatchEvent(new CustomEvent('bitcoin_block', { detail: { block: blockData, realtime: !calledOnLoad} }))
+      try {
+        console.log('downloading block', id)
+        const response = await fetch(`${this.apiUri}/api/block/${id}`, {
+          method: 'GET'
+        })
+        let blockData = await response.json()
+        console.log('downloaded block', id)
+        window.dispatchEvent(new CustomEvent('bitcoin_block', { detail: { block: blockData, realtime: !calledOnLoad} }))
+      } catch (err) {
+        console.log("failed to download block ", id)
+      }
     } else {
       console.log('already seen block ', lastBlockSeen)
     }
diff --git a/client/src/stores.js b/client/src/stores.js
index 704479d..2cffd8c 100644
--- a/client/src/stores.js
+++ b/client/src/stores.js
@@ -1,5 +1,5 @@
 import { writable, derived } from 'svelte/store'
-import { spring } from 'svelte/motion';
+import { tweened } from 'svelte/motion';
 import { makePollStore } from './utils/pollStore.js'
 import LocaleCurrency from 'locale-currency'
 import { currencies } from './utils/fx.js'
@@ -82,7 +82,7 @@ export const devEvents = writable({
 
 export const txCount = createCounter()
 export const lastBlockId = writable(null)
-export const mempoolCount = spring(0)
+export const mempoolCount = tweened(0)
 export const mempoolScreenHeight = writable(0)
 export const frameRate = writable(null)
 export const avgFrameRate = writable(null)
diff --git a/docker-compose.yml b/docker-compose.yml
index 7bf56ef..85d0f7e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -24,6 +24,7 @@ services:
       BITCOIN_HOST: "172.17.0.1"
       BITCOIN_ZMQ_RAWBLOCK_PORT: "29000"
       BITCOIN_ZMQ_RAWTX_PORT: "29001"
+      BITCOIN_ZMQ_SEQUENCE_PORT: "29002"
       BITCOIN_RPC_PORT: "8332"
       BITCOIN_RPC_USER: "bitcoin"
       BITCOIN_RPC_PASS: "correcthorsebatterystaple"
diff --git a/server/README.md b/server/README.md
index 8d88f02..1efd335 100644
--- a/server/README.md
+++ b/server/README.md
@@ -27,6 +27,7 @@ The API server expects the following environment variables to be set:
 | BITCOIN_HOST | Bitcoin node host address |
 | BITCOIN_ZMQ_RAWBLOCK_PORT | Bitcoin node ZMQ port for block events (to match `zmqpubrawblock` in bitcoin.conf) |
 | BITCOIN_ZMQ_RAWTX_PORT | Bitcoin node ZMQ port for transaction events (to match `zmqpubrawtx` in bitcoin.conf) |
+| BITCOIN_ZMQ_SEQUENCE_PORT | Bitcoin node ZMQ port for sequence events (to match `zmqpubsequence` in bitcoin.conf) |
 | BITCOIN_RPC_PORT | Bitcoin node RPC port |
 | either | |
 | BITCOIN_RPC_USER | Bitcoin node RPC user |
diff --git a/server/bitfeed.service b/server/bitfeed.service
index 89830c0..aa96fb6 100644
--- a/server/bitfeed.service
+++ b/server/bitfeed.service
@@ -14,6 +14,12 @@ Environment=LANG=en_US.UTF-8
 Environment=PORT=<port>
 Environment=BITCOIN_RPC_USER=<rpc user>
 Environment=BITCOIN_RPC_PASS=<rpc password>
+Environment=BITCOIN_HOST=<rpc host>
+Environment=BITCOIN_RPC_PORT=<rpc port>
+Environment=BITCOIN_ZMQ_RAWBLOCK_PORT=<zmq rawblock port>
+Environment=BITCOIN_ZMQ_RAWTX_PORT=<zmq rawtx port>
+Environment=BITCOIN_ZMQ_SEQUENCE_PORT=<zmq sequence port>
+
 
 WorkingDirectory=<installation root>/server
 
diff --git a/server/lib/router.ex b/server/lib/router.ex
index ee9f0ba..d2f24e0 100644
--- a/server/lib/router.ex
+++ b/server/lib/router.ex
@@ -12,7 +12,7 @@ defmodule BitcoinStream.Router do
     json_decoder: Jason
   plug :dispatch
 
-  match "/block/:hash" do
+  match "/api/block/:hash" do
     case get_block(hash) do
       {:ok, block} ->
         put_resp_header(conn, "cache-control", "public, max-age=604800, immutable")