We have plans for email - such that the user does not realise they have an npub, unless they export, and in a way that means we can't rug We are just under-resourced for finishing the build, currently, especially with the focus being on the release of the CLI / typescript library (so others can integrate sigit in their apps). We are very close to being able to start a sigit on web, and finish on CLI. For immediate self hosting you could consider docuseal.