Anyone have experience self-hosting? Maybe with https://www.npmjs.com/package/scimgateway https://www.npmjs.com/package/scimgateway running standalone, or proxy

Anyone have experience self-hosting? Maybe with https://www.npmjs.com/package/scimgateway https://www.npmjs.com/package/scimgateway running standalone, or proxying to an existing user store? Curious if there be dragons— do you need a few hundred users before encountering them?