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Emacs org-mode, orgparse, Jinja2 and Latex are my tools of choice to implement an intuitive text-based ERP system for my small company. Feeding data from org files to Latex templates using orgparse and the Jinja template system is working great.
https://orgmode.org/
https://pypi.org/project/orgparse/
https://palletsprojects.com/p/jinja/
Server run by the main developers of the project 
It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!