MyLight Systems – integration broken after migration to Azure AD B2C (OAuth2)

Third party integrations
1

Hello,

I’m a MyLight user in France (solar panels + virtual battery).

MyLight recently migrated their customer platform to a new B2C portal based on Azure AD B2C / OAuth2:
https://client.mylight150.com

Since this migration, the existing HACS integration MyLight Systems (acsedy) no longer returns any data.
It appears to rely on the legacy API / authentication, which is no longer compatible with the new B2C platform.

Authentication now goes through Microsoft Azure AD B2C (openid / profile / offline_access, OAuth2 code flow).

My questions:

  1. Is anyone already working on a new Home Assistant integration compatible with MyLight’s B2C OAuth2 platform?
  2. Has MyLight published (or partially exposed) a new API for this platform?
  3. Would a custom OAuth2-based integration be acceptable if endpoints can be identified?

I’ve already confirmed that the Energy dashboard configuration is correct, so this looks like a pure API compatibility issue.

The MyLight platform (solar + virtual battery) is widely used in France, so there may be other affected users.

Any guidance or pointers would be greatly appreciated.

Thanks.