diff --git a/.eslintrc.json b/.eslintrc.json
index 2eb9e3d..1bf4935 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,4 +1,5 @@
 {
+  "root": true,
   "parserOptions": {
     "ecmaVersion": 9,
     "ecmaFeatures": {
diff --git a/event.js b/event.js
index e6a6f6f..088f8c9 100644
--- a/event.js
+++ b/event.js
@@ -34,13 +34,13 @@ export function verifySignature(event) {
   if (event.id !== getEventHash(event)) return false
   return verifySchnorr(
     Buffer.from(event.id, 'hex'),
-    Buffer.from(event.pubkey, 'hex')
-    Buffer.from(event.sig, 'hex'),
+    Buffer.from(event.pubkey, 'hex'),
+    Buffer.from(event.sig, 'hex')
   )
 }
 
 export function signEvent(event, key) {
   let eventHash = Buffer.from(getEventHash(event), 'hex')
-  let key = Buffer.from(key, 'hex')
-  return Buffer.from(signSchnorr(eventHash, key)).toString('hex')
+  let keyB = Buffer.from(key, 'hex')
+  return Buffer.from(signSchnorr(eventHash, keyB)).toString('hex')
 }
diff --git a/index.js b/index.js
index 83bbcb3..d3010f1 100644
--- a/index.js
+++ b/index.js
@@ -11,6 +11,7 @@ import {
 import {matchFilter, matchFilters} from './filter'
 
 export {
+  generatePrivateKey,
   relayConnect,
   relayPool,
   signEvent,
diff --git a/nip06.js b/nip06.js
index 0122807..7f17522 100644
--- a/nip06.js
+++ b/nip06.js
@@ -1,4 +1,3 @@
-import createHmac from 'create-hmac'
 import {wordlist} from 'micro-bip39/wordlists/english'
 import {
   generateMnemonic,
diff --git a/package.json b/package.json
index 5dfd4b4..237215a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nostr-tools",
-  "version": "0.12.1",
+  "version": "0.12.2",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",
@@ -12,7 +12,6 @@
     "browserify-cipher": ">=1",
     "buffer": ">=5",
     "create-hash": "^1.2.0",
-    "create-hmac": ">=1",
     "dns-packet": "^5.2.4",
     "micro-bip39": "^0.1.3",
     "randombytes": ">=2",
@@ -30,5 +29,9 @@
     "censorship",
     "censorship-resistance",
     "client"
-  ]
+  ],
+  "devDependencies": {
+    "eslint": "^8.5.0",
+    "eslint-plugin-babel": "^5.3.1"
+  }
 }
diff --git a/pool.js b/pool.js
index a0a0265..cd6a5d3 100644
--- a/pool.js
+++ b/pool.js
@@ -3,7 +3,6 @@ import {relayConnect, normalizeRelayURL} from './relay'
 
 export function relayPool(globalPrivateKey) {
   const relays = {}
-  const globalSub = []
   const noticeCallbacks = []
 
   function propagateNotice(notice, relayURL) {
@@ -28,29 +27,34 @@ export function relayPool(globalPrivateKey) {
     const activeCallback = cb
     const activeFilters = filter
 
-    activeSubscriptions[id] = {
-      sub: ({cb = activeCallback, filter = activeFilters}) => {
-        Object.entries(subControllers).map(([relayURL, sub]) => [
-          relayURL,
-          sub.sub({cb, filter}, id)
-        ])
-        return activeSubscriptions[id]
-      },
-      addRelay: relay => {
-        subControllers[relay.url] = relay.sub({cb, filter}, id)
-        return activeSubscriptions[id]
-      },
-      removeRelay: relayURL => {
-        if (relayURL in subControllers) {
-          subControllers[relayURL].unsub()
-          if (Object.keys(subControllers).length === 0) unsub()
-        }
-        return activeSubscriptions[id]
-      },
-      unsub: () => {
-        Object.values(subControllers).forEach(sub => sub.unsub())
-        delete activeSubscriptions[id]
+    const unsub = () => {
+      Object.values(subControllers).forEach(sub => sub.unsub())
+      delete activeSubscriptions[id]
+    }
+    const sub = ({cb = activeCallback, filter = activeFilters}) => {
+      Object.entries(subControllers).map(([relayURL, sub]) => [
+        relayURL,
+        sub.sub({cb, filter}, id)
+      ])
+      return activeSubscriptions[id]
+    }
+    const addRelay = relay => {
+      subControllers[relay.url] = relay.sub({cb, filter}, id)
+      return activeSubscriptions[id]
+    }
+    const removeRelay = relayURL => {
+      if (relayURL in subControllers) {
+        subControllers[relayURL].unsub()
+        if (Object.keys(subControllers).length === 0) unsub()
       }
+      return activeSubscriptions[id]
+    }
+
+    activeSubscriptions[id] = {
+      sub,
+      unsub,
+      addRelay,
+      removeRelay
     }
 
     return activeSubscriptions[id]
diff --git a/relay.js b/relay.js
index b174d3b..184f564 100644
--- a/relay.js
+++ b/relay.js
@@ -1,3 +1,5 @@
+/* global WebSocket */
+
 import 'websocket-polyfill'
 
 import {verifySignature} from './event'
@@ -148,7 +150,7 @@ export function relayConnect(url, onNotice) {
       try {
         await trySend(['EVENT', event])
         statusCallback(0)
-        let {unsub} = relay.sub(
+        let {unsub} = sub(
           {
             cb: () => {
               statusCallback(1)