diff --git a/.npmignore b/.npmignore
index 38f6782..1d0d2df 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,2 +1,19 @@
+# ignore everything unrelated to the source code
+.vscode
+.prettierrc.yml
+docs/
+lib/
+script/
+test/
+.gitattributes
+tsconfig.json
+.yarnrc
+vendor/
+yarn-error.log
+*.tgz
 build
+jest.json
+.node-version
 .github
+src
+dist/test
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..d4e083b
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,8 @@
+.vscode
+.prettierrc.yml
+.gitattributes
+.yarnrc
+vendor/
+yarn-error.log
+build
+dist
diff --git a/index.js b/index.js
index 27050b5..8c5ff80 100644
--- a/index.js
+++ b/index.js
@@ -11,8 +11,8 @@ function getDesktopTrampolinePath() {
 
 function getDesktopTrampolineFilename() {
   return process.platform === 'win32'
-      ? 'desktop-trampoline.exe'
-      : 'desktop-trampoline'
+    ? 'desktop-trampoline.exe'
+    : 'desktop-trampoline'
 }
 
 module.exports = {
diff --git a/test/index.test.js b/test/index.test.js
index c0e5b7d..61e1666 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -4,7 +4,7 @@ const { execFile } = require('child_process')
 const { promisify } = require('util')
 const { getDesktopTrampolinePath } = require('../index')
 const split2 = require('split2')
-const { createServer, AddressInfo, Server, Socket } = require('net')
+const { createServer } = require('net')
 
 const trampolinePath = getDesktopTrampolinePath()
 const run = promisify(execFile)
@@ -25,15 +25,15 @@ describe('desktop-trampoline', () => {
       socket.pipe(split2(/\0/)).on('data', data => {
         output.push(data.toString('utf8'))
       })
-    
+
       // Don't send anything and just close the socket after the trampoline is
       // done forwarding data.
       socket.end()
     })
-    
+
     const startTrampolineServer = async () => {
       return new Promise((resolve, reject) => {
-        server.on('error', (e) => reject(e))
+        server.on('error', e => reject(e))
         server.listen(() => {
           resolve(server.address().port)
         })
@@ -54,7 +54,7 @@ describe('desktop-trampoline', () => {
       'baz',
       '2', // number of environment variables
       'DESKTOP_SOMETHING=foo bar',
-      `DESKTOP_PORT=${port}`
+      `DESKTOP_PORT=${port}`,
     ])
   })
 })