OK - I’ve noticed that when I install the plugin from the Community Plugins section, it installs only a data.json, manifest.json and main.js in the Calendar plugin folder in .obsidian.
My only remaining question is that: there is no main.js in the GitHub repo, instead a main.ts within the ‘src’ folder.
To install manually, do we simply change the file extension from .ts to .js on ‘main’?