diff --git a/docs/examples/baconjs/index.js b/docs/examples/baconjs/index.js
deleted file mode 100644
index 0b84f10..0000000
--- a/docs/examples/baconjs/index.js
+++ /dev/null
@@ -1,24 +0,0 @@
-// external
-import {} from 'https://unpkg.com/jquery'
-// external
-import {fromEvent} from 'https://unpkg.com/baconjs?module'
-
-const upEl = globalThis.document.createElement('button')
-const downEl = globalThis.document.createElement('button')
-const counterEl = globalThis.document.createElement('div')
-
-globalThis.document.body.appendChild(upEl)
-globalThis.document.body.appendChild(downEl)
-globalThis.document.body.appendChild(counterEl)
-
-const up = fromEvent(upEl, 'click');
-const down = fromEvent(downEl, 'click');
-
-const counter =
-  // map up to 1, down to -1
-  up.map(1).merge(down.map(-1))
-  // accumulate sum
-    .scan(0, (x,y) => x + y);
-
-// assign observable value to jQuery property text
-counter.onValue(text => Object.assign(counterEl, {innerText: text}));
diff --git a/docs/examples/ethers/index.js b/docs/examples/ethers/index.js
new file mode 100644
index 0000000..3dfea5c
--- /dev/null
+++ b/docs/examples/ethers/index.js
@@ -0,0 +1,14 @@
+import {ethers} from 'https://unpkg.com/ethers/dist/ethers.esm.js'
+
+const URL = 'https://ethereum-goerli-rpc.allthatnode.com'
+
+const p = ethers.getDefaultProvider(URL)
+
+const latest = await p.getBlock()
+
+const txs = await Promise.all(latest.transactions.map(t => 
+  p.getTransactionReceipt(t)
+))
+
+const totalGas = txs.reduce((gas,tx) => 
+  gas.add(tx.gasUsed), ethers.BigNumber.from(0))