wish to access to a unique database for libreoffice and architect portfolio website

I wish an open-source web cms-site to publish my portfolio (architecture). The sistem shall have configurable fields, and ideally the ability to set-up multi-multi relationships. I don't need social - users, etcetera, only catalog but the way I want. Html5+css3 output.
I would then like to access the same database with libreoffice to easilly retrive different projects for different curricula/portfolio (i.e. only hotels, or only over a certain budget) and format the information in different ways (information in tables, or in forms...).
I don't want to keep both a cv and a website repeating allways the same informations.
I have a small cms experience (old Modx), I was looking at Processwire and Boltcms, but could'nt find any based on firebird as libreoffice does. Wich would be a good solution?
Thank you