Admin User is created while installation.
Username: mx-admin
Password can be found with
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cat /home/docker/matrix.$(hostname)/env
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Create a new user with
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docker compose -f /home/docker/matrix.$(hostname)/docker-compose.yml exec -ti matrix.defiant.dedyn.io register_new_matrix_user -c /data/homeserver.yaml --no-admin http://localhost:8008´´´
List users
. /home/docker/matrix.$(hostname)/env ; docker compose -f /home/docker/matrix.$(hostname)/docker-compose.yml exec -ti matrix.defiant.dedyn.io--db psql -U $POSTGRES_USER -d synapse -c "SELECT name from users"