Generate timezones from tzdata?

[joshtriplett]

Rather than requiring _timezones.toml (and requiring people in a new timezone to manually add a definition of that timezone), could the generator generate it from the standard time zone data (tzdata), either statically as _timezones.toml or ideally on-the-fly to define the timezones without needing _timezones.toml?

[davidtwco]

We probably could, I haven't looked into what that would involve, I mostly just copy the timezone definitions from what other calendar applications output in their ics files. Happy for someone to take a look at this though.