You can find BookStack applications using this tool.
BookStack is an opinionated wiki system that provides a pleasant and simple out of the box experience. New users to an instance should find the experience intuitive and only basic word-processing skills should be required to get involved in creating content on BookStack. The platform should provide advanced power features to those that desire it but they should not interfere with the core simple user experience.
If attackers detect the technology used, they will try to detect vulnerabilities related to this application.
Only use components that do not have known vulnerabilities, only use components that when combined to not introduce a security vulnerability, and ensure that a misconfiguration does not cause any vulnerabilities.