Go2Doc, a handy Chrome extension that opens Godoc.org page for the current project you're just viewing, if you're on Github, Bitbucket etc.
An ACL package for Go, looks pretty decent - we should see how we could integrate this pkg as a http middleware similar to what we do on pressly/api with chi
ladon - A SDK for access control policies: authorization for the microservice and IoT age. Inspired by AWS IAM policies. Written for Go.