Open-source “headless” content management system (CMS) provider Strapi has raised $31 million in Series B funding.

The investment was led by CRV. Flex Capital and Index Ventures also participated in the round, along with new angel investors including Nat Friedman (former GitHub CEO), Nicolas Dessaigne (Algolia co-founder), and Matt Biilmann Christensen (chief executive of Netlify).

Strapi has raised $45 million to date.