Could be the combination of switches I used. I did:
lein new luminus prj +reitit +sqlite +cljs +swagger +auth-jwe +oauth +cucumber +kibit
lein run
And got:
...
Caused by: java.lang.IllegalArgumentException: No matching ctor found for class org.yaml.snakeyaml.constructor.SafeConstructor
...
Adding:
[clj-commons/clj-yaml "0.7.109"]
to deps in project.clj fixes it