Hello Steakie,
Thanks for the tip.
I've now made some progress, but now I get the following error message when I call it up in the web browser.
"Cannot read properties of undefined (reading 'api')"
When starting yarn, the following appears in the input
Compiled successfully!
You can now view grommunio-next in the browser.
http://mail:3000
Note that the development build is not optimised.
To create a production build, use yarn build.
webpack compiled successfully
Files successfully emitted, waiting for typecheck results...
Issues checking in progress...
No issues found.
The following domain should actually appear here
https://mail.domain.tld:3000
Thanks
Oliver