diff --git a/.gitignore b/.gitignore
index 263e049..c4ad32a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,3 @@
-*-update/*
-*.DS_Store
 node_modules
 src/content-script.js
-src/.amo-upload-uuid
-src/web-ext-artifacts
+*web-ext-artifacts/*
diff --git a/README.md b/README.md
index e5790ac..bda948c 100644
--- a/README.md
+++ b/README.md
@@ -10,11 +10,14 @@ MetamorPOV includes Node packages for verb conjugation. You'll need [Node](https
 # Install project dependencies
 npm install
 
-# Bundles replace-words.js and its dependencies into content-script.js
+# Bundle replace-words.js and its dependencies into content-script.js
 npm run build
 
 # Open a browser instance with the extension installed
 npm run test
+
+# Generate a .zip that can be loaded in a browser
+npm run package
 ```
 
 When running the extension with the `test` script, it will be updated automatically as source files are modified. This excludes `content-script.js`, which has to be bundled manually by running the `build` script.
diff --git a/package.json b/package.json
index 5cbd5f5..65c4efc 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,8 @@
   "license": "GPL-3.0-or-later",
   "scripts": {
     "build": "npx rollup -c",
-    "test": "npx web-ext run -s src"
+    "test": "npx web-ext run -s src",
+    "package": "npx web-ext build -s src"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "28.0.2",