Allow running in-parallel add-ons

[issacg]

Expected behavior: As a user, I should be able to develop several add-ons in the same Hass.io instance.

Actual behavior: Each add-on needs to run in its own devcontainer

[issacg]

When microsoft/vscode-remote-release#2129 is solved, each add-on should be able to mount to the same running container under local add-ons.

Until then, as a workaround, you can modify the workspaceMount and workspaceFolder to the respective parent folders and then all add-ons in the parent directory will show up in the local add-ons

[inverse]

@issacg can this be closed and the readme updated? As the ticket in question was closed.

[issacg]

Not sure if it works as expected, as it hasn't been tested AFAIK.

Regardless, one could use the same setup as https://github.com/home-assistant/addons to achieve a similar goal, should one desire.