Do the thing.

.gitignore

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+node_modules

LICENSE

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+Copyright (c) 2016 Austin Peterson
+
+The following license applies to all parts of this software except as
+documented below:
+
+====
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package.json

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+{
+  "name": "node-urandom-server",
+  "version": "1.0.0",
+  "description": "A node.js web server that just serves from /dev/urandom.",
+  "main": "server.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/AKPWebDesign/node-urandom-server.git"
+  },
+  "keywords": [
+    "urandom",
+    "express",
+    "random"
+  ],
+  "author": "Austin Peterson <[email protected]> (https://blog.akpwebdesign.com)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/AKPWebDesign/node-urandom-server/issues"
+  },
+  "homepage": "https://github.com/AKPWebDesign/node-urandom-server#readme",
+  "dependencies": {
+    "express": "^4.14.0",
+    "randbytes": "0.0.1"
+  }
+}

server.js

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+var e = require('express')
+var a = e()
+var p = process.env.PORT || 8080
+var r = new (require('randbytes')).urandom.getInstance()
+
+a.get('/', (req, res) => {
+  r.getRandomBytes(5000, (b) => {
+    res.header('Content-Type', 'text/html')
+    res.send(b)
+  })
+})
+
+a.listen(p, () => { console.log(`Listening on port ${p}.`) })