Zvonk
The extension isn't on the Web Store yet. Load it in developer mode — takes about two minutes.
Use your local project files. You only need the extension/ folder.
Open your smart_note project folder on this machine
Navigate to chrome://extensions in Chrome and toggle Developer mode on (top-right switch).
Click Load unpacked and select the local extension/ folder from your project files. The Zvonk icon will appear in your toolbar.
Open the extension, go to Settings, and paste your API key from the dashboard. You're ready.