diff --git a/extension/.eslintignore b/.eslintignore
similarity index 100%
rename from extension/.eslintignore
rename to .eslintignore
diff --git a/extension/.eslintrc.js b/.eslintrc.js
similarity index 100%
rename from extension/.eslintrc.js
rename to .eslintrc.js
diff --git a/.gitignore b/.gitignore
index 496ee2c..88c5dae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,13 @@
-.DS_Store
\ No newline at end of file
+.DS_Store
+# ignore node_modules contents
+**/node_modules/*
+# don't ignore web-vitals
+!**/node_modules/web-vitals/
+# do ignore web-vitals contents
+**/node_modules/web-vitals/*
+# don't ignore web-vitals/dist
+!**/node_modules/web-vitals/dist/
+# do ignore web-vitals/dist contents
+**/node_modules/web-vitals/dist/*
+# don't ignore web-vitals.min.js
+!**/node_modules/web-vitals/dist/web-vitals.min.js
\ No newline at end of file
diff --git a/extension/_locales/en/messages.json b/_locales/en/messages.json
similarity index 100%
rename from extension/_locales/en/messages.json
rename to _locales/en/messages.json
diff --git a/extension/.gitignore b/extension/.gitignore
deleted file mode 100644
index c2bc5d1..0000000
--- a/extension/.gitignore
+++ /dev/null
@@ -1,12 +0,0 @@
-# ignore node_modules contents
-**/node_modules/*
-# don't ignore web-vitals
-!**/node_modules/web-vitals/
-# do ignore web-vitals contents
-**/node_modules/web-vitals/*
-# don't ignore web-vitals/dist
-!**/node_modules/web-vitals/dist/
-# do ignore web-vitals/dist contents
-**/node_modules/web-vitals/dist/*
-# don't ignore web-vitals.min.js
-!**/node_modules/web-vitals/dist/web-vitals.min.js
\ No newline at end of file
diff --git a/extension/icons/default128w.png b/icons/default128w.png
similarity index 100%
rename from extension/icons/default128w.png
rename to icons/default128w.png
diff --git a/extension/icons/default16w.png b/icons/default16w.png
similarity index 100%
rename from extension/icons/default16w.png
rename to icons/default16w.png
diff --git a/extension/icons/default256w.png b/icons/default256w.png
similarity index 100%
rename from extension/icons/default256w.png
rename to icons/default256w.png
diff --git a/extension/icons/default48w.png b/icons/default48w.png
similarity index 100%
rename from extension/icons/default48w.png
rename to icons/default48w.png
diff --git a/extension/icons/default512w.png b/icons/default512w.png
similarity index 100%
rename from extension/icons/default512w.png
rename to icons/default512w.png
diff --git a/extension/icons/fast128w.png b/icons/fast128w.png
similarity index 100%
rename from extension/icons/fast128w.png
rename to icons/fast128w.png
diff --git a/extension/icons/fast16w.png b/icons/fast16w.png
similarity index 100%
rename from extension/icons/fast16w.png
rename to icons/fast16w.png
diff --git a/extension/icons/fast256w.png b/icons/fast256w.png
similarity index 100%
rename from extension/icons/fast256w.png
rename to icons/fast256w.png
diff --git a/extension/icons/fast48w.png b/icons/fast48w.png
similarity index 100%
rename from extension/icons/fast48w.png
rename to icons/fast48w.png
diff --git a/extension/icons/fast512w.png b/icons/fast512w.png
similarity index 100%
rename from extension/icons/fast512w.png
rename to icons/fast512w.png
diff --git a/extension/icons/icon128.png b/icons/icon128.png
similarity index 100%
rename from extension/icons/icon128.png
rename to icons/icon128.png
diff --git a/extension/icons/icon16.png b/icons/icon16.png
similarity index 100%
rename from extension/icons/icon16.png
rename to icons/icon16.png
diff --git a/extension/icons/icon19.png b/icons/icon19.png
similarity index 100%
rename from extension/icons/icon19.png
rename to icons/icon19.png
diff --git a/extension/icons/icon48.png b/icons/icon48.png
similarity index 100%
rename from extension/icons/icon48.png
rename to icons/icon48.png
diff --git a/extension/icons/slow128w-3.png b/icons/slow128w-3.png
similarity index 100%
rename from extension/icons/slow128w-3.png
rename to icons/slow128w-3.png
diff --git a/extension/icons/slow128w-cls.png b/icons/slow128w-cls.png
similarity index 100%
rename from extension/icons/slow128w-cls.png
rename to icons/slow128w-cls.png
diff --git a/extension/icons/slow128w-fid.png b/icons/slow128w-fid.png
similarity index 100%
rename from extension/icons/slow128w-fid.png
rename to icons/slow128w-fid.png
diff --git a/extension/icons/slow128w-lcp.png b/icons/slow128w-lcp.png
similarity index 100%
rename from extension/icons/slow128w-lcp.png
rename to icons/slow128w-lcp.png
diff --git a/extension/icons/slow128w.png b/icons/slow128w.png
similarity index 100%
rename from extension/icons/slow128w.png
rename to icons/slow128w.png
diff --git a/extension/icons/slow16w.png b/icons/slow16w.png
similarity index 100%
rename from extension/icons/slow16w.png
rename to icons/slow16w.png
diff --git a/extension/icons/slow256w.png b/icons/slow256w.png
similarity index 100%
rename from extension/icons/slow256w.png
rename to icons/slow256w.png
diff --git a/extension/icons/slow48w.png b/icons/slow48w.png
similarity index 100%
rename from extension/icons/slow48w.png
rename to icons/slow48w.png
diff --git a/extension/icons/slow512w.png b/icons/slow512w.png
similarity index 100%
rename from extension/icons/slow512w.png
rename to icons/slow512w.png
diff --git a/extension/manifest.json b/manifest.json
similarity index 100%
rename from extension/manifest.json
rename to manifest.json
diff --git a/extension/node_modules/web-vitals/dist/web-vitals.min.js b/node_modules/web-vitals/dist/web-vitals.min.js
similarity index 100%
rename from extension/node_modules/web-vitals/dist/web-vitals.min.js
rename to node_modules/web-vitals/dist/web-vitals.min.js
diff --git a/extension/package-lock.json b/package-lock.json
similarity index 100%
rename from extension/package-lock.json
rename to package-lock.json
diff --git a/extension/package.json b/package.json
similarity index 100%
rename from extension/package.json
rename to package.json
diff --git a/extension/src/bg/background.html b/src/bg/background.html
similarity index 100%
rename from extension/src/bg/background.html
rename to src/bg/background.html
diff --git a/extension/src/bg/background.js b/src/bg/background.js
similarity index 100%
rename from extension/src/bg/background.js
rename to src/bg/background.js
diff --git a/extension/src/browser_action/browser_action.html b/src/browser_action/browser_action.html
similarity index 100%
rename from extension/src/browser_action/browser_action.html
rename to src/browser_action/browser_action.html
diff --git a/extension/src/browser_action/core.css b/src/browser_action/core.css
similarity index 100%
rename from extension/src/browser_action/core.css
rename to src/browser_action/core.css
diff --git a/extension/src/browser_action/overlay.css b/src/browser_action/overlay.css
similarity index 100%
rename from extension/src/browser_action/overlay.css
rename to src/browser_action/overlay.css
diff --git a/extension/src/browser_action/popup.html b/src/browser_action/popup.html
similarity index 100%
rename from extension/src/browser_action/popup.html
rename to src/browser_action/popup.html
diff --git a/extension/src/browser_action/popup.js b/src/browser_action/popup.js
similarity index 100%
rename from extension/src/browser_action/popup.js
rename to src/browser_action/popup.js
diff --git a/extension/src/browser_action/viewer.css b/src/browser_action/viewer.css
similarity index 100%
rename from extension/src/browser_action/viewer.css
rename to src/browser_action/viewer.css
diff --git a/extension/src/browser_action/vitals.js b/src/browser_action/vitals.js
similarity index 100%
rename from extension/src/browser_action/vitals.js
rename to src/browser_action/vitals.js
diff --git a/extension/src/browser_action/web-vitals.js b/src/browser_action/web-vitals.js
similarity index 100%
rename from extension/src/browser_action/web-vitals.js
rename to src/browser_action/web-vitals.js
diff --git a/extension/src/inject/inject.js b/src/inject/inject.js
similarity index 100%
rename from extension/src/inject/inject.js
rename to src/inject/inject.js
diff --git a/extension/src/options/options.html b/src/options/options.html
similarity index 100%
rename from extension/src/options/options.html
rename to src/options/options.html
diff --git a/extension/src/options/options.js b/src/options/options.js
similarity index 100%
rename from extension/src/options/options.js
rename to src/options/options.js
diff --git a/extension/yarn.lock b/yarn.lock
similarity index 100%
rename from extension/yarn.lock
rename to yarn.lock