We built zero-trust database connectors – Snowflake Native App with ngrok (omnata.com)

You could do this agentless if you used open source zrok and/or OpenZiti, as they include SDKs to embed zero trust networking directly into your apps. I wrote a blog on this recently for Mendix, as a low code platform, which we demonstrated with our Java SDK - https://netfoundry.io/embeddable-zero-trust/how-mendix-custo...