This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Guido X Jansen
gui.do
did:plc:45uheisi25szrjvjurfpritx
Yeah that's just bad.
Also note the caveat that with Proton you can't share your calendar with anyone, nor can you have any of this cal.eu like tools for smart scheduling
https://cal.eu
2026-09-01T16:25:33.699Z