apex charts: licence issues

[oliver-sanders]

We are using Apex Charts V3 which is MIT licence (all good).

However, since then, the project has switched to a freeware model which prohibits corporate use (which will apply to Cylc users) and re-licencing (which causes issues with our GPL licence).

This means we can't upgrade :(

Ok for now, but not sustainable going forward. We will either have to:

• Switch to an open source fork of Apex (do any exist).
• Find something else :(

[MetRonnie]

See also #2360

[oliver-sanders]

Possible alternative library: https://www.npmjs.com/package/@bokeh/bokehjs

Comes from the science domain, associations to the Jupyter project, strong scientific visualisation options.

[ChrisPaulBennett]

Well, that's frustrating...