Does anyone have suggestions for a truly free-as-in-freedom and open source secrets manager? I'm so tired of seeing these quasi-open source products that dual-l

Does anyone have suggestions for a truly free-as-in-freedom and open source secrets manager? I'm so tired of seeing these quasi-open source products that dual-license their source code and lock essential features like SSO behind an enterprise paywall. Every one of these VC-funded startups always eventually goes down the drain as their backers seek to recoup these investment dollars.