Just read the news that our Belgian government now has its own secure messenger, created by 'Belgian Secure Communications'

The name is Beam, and it's based on #matrix

site:
https://beam.belgium.be/en/

webclient:
https://web.beam.belgium.be/#/login

EDIT: code on github, it seems:
https://github.com/bsc-oss

EDIT2: it's @matrix based

BEAM – Secure messaging for Belgian public services

Secure and end-to-end encrypted messaging platform, specifically designed for Belgian government employees and public sector organizations.

BEAM
@peturdainn @matrix shame that it isn't available for health care workers because it sure would be better on our current ancient ehealthbox