diff --git a/README.md b/README.md
index a7bd701..648aa4d 100644
--- a/README.md
+++ b/README.md
@@ -51,3 +51,8 @@ fgr="SHA256:jh7FlZkLnOxIVEoNYaJXjM+funB3kT1rkn/SOLIrDVw" home="/home/test" key="
 fgr="SHA256:Fo0hGLTLki9TdbOX43CmfiqdkIgMEiF57W3AcovaK7E" home="/home/test" key="AAAAC3NzaC1lZDI1NTE5AAAAIJEuxEjjdx5+vMAHfYvqf9Fzx3cDNyAxi6jsjLL1q/uJ" ktype="ssh-ed25519" uid="1001" user="test"
 ```
 
+## Discovered prior work
+
+- https://github.com/dalen/ssh-auth-github
+- https://github.com/cloudposse/github-authorized-keys
+- https://github.com/trevoro/sshauth