I created an instance from the development branch of Plone 6. The source code of this branch could be cloned from the Github repository of the Open Source project: https://github.com/plone/buildout.coredev
I also cloned the Volto repository from Github: https://github.com/plone/volto and started with building the backend. Then run ‚yarn start‘ and fixed the missing dependencies, especially ‚razzle‘ (yarn add razzle). Once this was done yarn build the Volto client and server. I could get the Volto interface at ‚localhost:3000‘ yet. But it is missing a Plone instance, because it had not been up.
I fixed this by running the instance of my Plone 6 buildout, created a new Plone site with the default name ‚Plone‘. This site could be reached in the (old) classic Plone interface at ‚localhost:8080/Plone‘.
I had to install the ‚plone.restapi‘ inside the new Plone site (within the settings site under ‚add-ons‘). The Volto interface at ‚localhost:3000‘ could connect to the Plone instance yet.
I made a first test with the new Volto interface and created a new Page inside the Plone instance (inside a folder) to test its functionality. I copied a text from a popular Open Source projects website for this test. I could paste it directly into the new page. Then I tried to insert a grafic into the page. But this functionality wasn’t available in my Volto interface yet. I could integrate this grafic within the edit feature of the classic Plone interface and display it also on the Volto interface. The screenshot at the top shows the result of my short test.