And for those interested in a FP-oriented (rather than OO) approach to cap-based security, here&#x27;s a post on using it as a tool to enforce good design: <a href="http:&#x2F;&#x2F;fsharpforfunandprofit.com&#x2F;posts&#x2F;capability-based-security&#x2F;" rel="nofollow">http:&#x2F;&#x2F;fsharpforfunandprofit.com&#x2F;posts&#x2F;capability-based-secu...</a>